./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6499b62d1470f924cb4a1d4c6eb228c557a21b7be97bcd4aa73e963f3e1c7410 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:23:41,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:23:41,359 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:23:41,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:23:41,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:23:41,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:23:41,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:23:41,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:23:41,386 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:23:41,386 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:23:41,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:23:41,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:23:41,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:23:41,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:23:41,387 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:23:41,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:23:41,388 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:23:41,389 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:23:41,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:23:41,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:23:41,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:23:41,390 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6499b62d1470f924cb4a1d4c6eb228c557a21b7be97bcd4aa73e963f3e1c7410 [2024-12-02 10:23:41,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:23:41,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:23:41,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:23:41,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:23:41,635 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:23:41,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i [2024-12-02 10:23:44,333 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/ea4e1e6ec/1b5a122b8a254d32b71415d6c2ef4226/FLAG9f3ae1a49 [2024-12-02 10:23:44,542 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:23:44,542 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i [2024-12-02 10:23:44,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/ea4e1e6ec/1b5a122b8a254d32b71415d6c2ef4226/FLAG9f3ae1a49 [2024-12-02 10:23:44,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/ea4e1e6ec/1b5a122b8a254d32b71415d6c2ef4226 [2024-12-02 10:23:44,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:23:44,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:23:44,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:23:44,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:23:44,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:23:44,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:23:44" (1/1) ... [2024-12-02 10:23:44,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ada683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:44, skipping insertion in model container [2024-12-02 10:23:44,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:23:44" (1/1) ... [2024-12-02 10:23:44,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:23:45,035 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i[916,929] [2024-12-02 10:23:45,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:23:45,111 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:23:45,120 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i[916,929] [2024-12-02 10:23:45,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:23:45,184 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:23:45,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45 WrapperNode [2024-12-02 10:23:45,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:23:45,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:23:45,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:23:45,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:23:45,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,243 INFO L138 Inliner]: procedures = 29, calls = 195, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 661 [2024-12-02 10:23:45,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:23:45,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:23:45,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:23:45,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:23:45,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,278 INFO L175 MemorySlicer]: Split 166 memory accesses to 5 slices as follows [2, 34, 18, 19, 93]. 56 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 2, 2, 4]. The 17 writes are split as follows [0, 6, 2, 2, 7]. [2024-12-02 10:23:45,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,300 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:23:45,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:23:45,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:23:45,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:23:45,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (1/1) ... [2024-12-02 10:23:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:23:45,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:45,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:23:45,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:23:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:23:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 10:23:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 10:23:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 10:23:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 10:23:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:23:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:23:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:23:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 10:23:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:23:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:23:45,500 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:23:45,502 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:23:46,051 INFO L? ?]: Removed 216 outVars from TransFormulas that were not future-live. [2024-12-02 10:23:46,051 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:23:46,062 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:23:46,062 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:23:46,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:46 BoogieIcfgContainer [2024-12-02 10:23:46,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:23:46,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:23:46,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:23:46,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:23:46,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:23:44" (1/3) ... [2024-12-02 10:23:46,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6274aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:23:46, skipping insertion in model container [2024-12-02 10:23:46,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:23:45" (2/3) ... [2024-12-02 10:23:46,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6274aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:23:46, skipping insertion in model container [2024-12-02 10:23:46,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:46" (3/3) ... [2024-12-02 10:23:46,070 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-49.i [2024-12-02 10:23:46,080 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:23:46,081 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-49.i that has 2 procedures, 136 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:23:46,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:23:46,135 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@424871ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:23:46,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:23:46,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 120 states have internal predecessors, (175), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:23:46,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:23:46,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:46,148 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:46,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:46,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:46,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1655919171, now seen corresponding path program 1 times [2024-12-02 10:23:46,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:46,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600707249] [2024-12-02 10:23:46,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:46,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-02 10:23:46,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:46,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600707249] [2024-12-02 10:23:46,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600707249] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:46,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086467576] [2024-12-02 10:23:46,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:46,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:46,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:46,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:46,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:23:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:46,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:23:46,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-02 10:23:46,623 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:23:46,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086467576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:46,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:23:46,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 10:23:46,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019214882] [2024-12-02 10:23:46,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:46,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:23:46,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:46,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:23:46,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:23:46,650 INFO L87 Difference]: Start difference. First operand has 136 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 120 states have internal predecessors, (175), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:23:46,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:46,676 INFO L93 Difference]: Finished difference Result 265 states and 414 transitions. [2024-12-02 10:23:46,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:23:46,678 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-12-02 10:23:46,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:46,683 INFO L225 Difference]: With dead ends: 265 [2024-12-02 10:23:46,683 INFO L226 Difference]: Without dead ends: 132 [2024-12-02 10:23:46,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:23:46,689 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:46,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:23:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-12-02 10:23:46,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-12-02 10:23:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.4482758620689655) internal successors, (168), 116 states have internal predecessors, (168), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:23:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 196 transitions. [2024-12-02 10:23:46,719 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 196 transitions. Word has length 117 [2024-12-02 10:23:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:46,719 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 196 transitions. [2024-12-02 10:23:46,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:23:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 196 transitions. [2024-12-02 10:23:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:23:46,722 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:46,722 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:46,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:23:46,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 10:23:46,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:46,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash -358103061, now seen corresponding path program 1 times [2024-12-02 10:23:46,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:46,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449946216] [2024-12-02 10:23:46,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:46,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:47,570 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:23:47,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:47,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449946216] [2024-12-02 10:23:47,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449946216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:47,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:47,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:23:47,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735999844] [2024-12-02 10:23:47,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:47,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:23:47,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:47,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:23:47,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:23:47,572 INFO L87 Difference]: Start difference. First operand 132 states and 196 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:23:47,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:47,914 INFO L93 Difference]: Finished difference Result 392 states and 585 transitions. [2024-12-02 10:23:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:23:47,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-12-02 10:23:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:47,917 INFO L225 Difference]: With dead ends: 392 [2024-12-02 10:23:47,918 INFO L226 Difference]: Without dead ends: 263 [2024-12-02 10:23:47,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:23:47,919 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 187 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:47,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 882 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:23:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-12-02 10:23:47,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 136. [2024-12-02 10:23:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 120 states have (on average 1.4416666666666667) internal successors, (173), 120 states have internal predecessors, (173), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:23:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 201 transitions. [2024-12-02 10:23:47,933 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 201 transitions. Word has length 117 [2024-12-02 10:23:47,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:47,934 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 201 transitions. [2024-12-02 10:23:47,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:23:47,934 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 201 transitions. [2024-12-02 10:23:47,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:23:47,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:47,937 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:47,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:23:47,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:47,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash 132184262, now seen corresponding path program 1 times [2024-12-02 10:23:47,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:47,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300720584] [2024-12-02 10:23:47,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:47,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:48,847 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:23:48,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:48,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300720584] [2024-12-02 10:23:48,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300720584] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:48,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315263903] [2024-12-02 10:23:48,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:48,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:48,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:48,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:48,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:23:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:49,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:23:49,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:49,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 55 [2024-12-02 10:23:49,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-12-02 10:23:49,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2024-12-02 10:23:49,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:23:49,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 42 [2024-12-02 10:23:49,595 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:23:49,596 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:23:49,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315263903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:49,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:23:49,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-12-02 10:23:49,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109912015] [2024-12-02 10:23:49,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:49,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:23:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:49,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:23:49,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:23:49,598 INFO L87 Difference]: Start difference. First operand 136 states and 201 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:23:49,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:49,903 INFO L93 Difference]: Finished difference Result 387 states and 574 transitions. [2024-12-02 10:23:49,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:23:49,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:23:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:49,906 INFO L225 Difference]: With dead ends: 387 [2024-12-02 10:23:49,906 INFO L226 Difference]: Without dead ends: 254 [2024-12-02 10:23:49,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:23:49,907 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 156 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:49,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1452 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:23:49,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-12-02 10:23:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2024-12-02 10:23:49,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 228 states have (on average 1.4605263157894737) internal successors, (333), 229 states have internal predecessors, (333), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:23:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 373 transitions. [2024-12-02 10:23:49,928 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 373 transitions. Word has length 119 [2024-12-02 10:23:49,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:49,929 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 373 transitions. [2024-12-02 10:23:49,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:23:49,929 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 373 transitions. [2024-12-02 10:23:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:23:49,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:49,931 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:49,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:23:50,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:50,132 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:50,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash -260842748, now seen corresponding path program 1 times [2024-12-02 10:23:50,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:50,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468643689] [2024-12-02 10:23:50,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:50,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:50,497 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:23:50,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:50,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468643689] [2024-12-02 10:23:50,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468643689] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:50,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:50,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:23:50,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243149373] [2024-12-02 10:23:50,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:50,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:23:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:50,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:23:50,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:23:50,498 INFO L87 Difference]: Start difference. First operand 251 states and 373 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:23:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:50,603 INFO L93 Difference]: Finished difference Result 528 states and 782 transitions. [2024-12-02 10:23:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:23:50,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:23:50,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:50,607 INFO L225 Difference]: With dead ends: 528 [2024-12-02 10:23:50,607 INFO L226 Difference]: Without dead ends: 280 [2024-12-02 10:23:50,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:23:50,609 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 154 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:50,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 694 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:50,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-12-02 10:23:50,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 250. [2024-12-02 10:23:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 227 states have (on average 1.4581497797356828) internal successors, (331), 228 states have internal predecessors, (331), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:23:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 371 transitions. [2024-12-02 10:23:50,627 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 371 transitions. Word has length 119 [2024-12-02 10:23:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:50,627 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 371 transitions. [2024-12-02 10:23:50,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:23:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 371 transitions. [2024-12-02 10:23:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:23:50,629 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:50,630 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:50,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:23:50,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:50,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1402700193, now seen corresponding path program 1 times [2024-12-02 10:23:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:50,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842958425] [2024-12-02 10:23:50,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:23:51,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842958425] [2024-12-02 10:23:51,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842958425] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79679754] [2024-12-02 10:23:51,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:51,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:51,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:23:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:51,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:23:51,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:51,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 10:23:51,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 50 [2024-12-02 10:23:51,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:23:51,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 80 [2024-12-02 10:23:51,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:23:51,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2024-12-02 10:23:51,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:23:51,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 34 [2024-12-02 10:23:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 10:23:51,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:23:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:23:52,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79679754] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:23:52,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:23:52,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 11 [2024-12-02 10:23:52,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533720822] [2024-12-02 10:23:52,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:23:52,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:23:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:52,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:23:52,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:23:52,049 INFO L87 Difference]: Start difference. First operand 250 states and 371 transitions. Second operand has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 10:23:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:52,431 INFO L93 Difference]: Finished difference Result 677 states and 1001 transitions. [2024-12-02 10:23:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:23:52,431 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) Word has length 119 [2024-12-02 10:23:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:52,434 INFO L225 Difference]: With dead ends: 677 [2024-12-02 10:23:52,434 INFO L226 Difference]: Without dead ends: 430 [2024-12-02 10:23:52,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 234 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:23:52,436 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 610 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:52,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 890 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:23:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-12-02 10:23:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 258. [2024-12-02 10:23:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 233 states have (on average 1.4377682403433476) internal successors, (335), 234 states have internal predecessors, (335), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:23:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 375 transitions. [2024-12-02 10:23:52,449 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 375 transitions. Word has length 119 [2024-12-02 10:23:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:52,450 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 375 transitions. [2024-12-02 10:23:52,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 10:23:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 375 transitions. [2024-12-02 10:23:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:23:52,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:52,452 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:52,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:23:52,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:52,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:52,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:52,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1086473895, now seen corresponding path program 1 times [2024-12-02 10:23:52,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:52,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692894450] [2024-12-02 10:23:52,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:52,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:23:53,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:53,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692894450] [2024-12-02 10:23:53,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692894450] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:53,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216097812] [2024-12-02 10:23:53,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:53,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:53,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:53,122 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:53,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:23:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:53,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:23:53,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:53,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2024-12-02 10:23:53,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 70 [2024-12-02 10:23:53,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-12-02 10:23:53,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:23:53,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 36 [2024-12-02 10:23:53,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:23:53,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 15 [2024-12-02 10:23:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 106 proven. 66 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-02 10:23:53,715 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:23:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:23:53,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216097812] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:23:53,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:23:53,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 13 [2024-12-02 10:23:53,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925035633] [2024-12-02 10:23:53,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:23:53,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:23:53,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:53,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:23:53,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:23:53,984 INFO L87 Difference]: Start difference. First operand 258 states and 375 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) [2024-12-02 10:23:54,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:54,795 INFO L93 Difference]: Finished difference Result 1172 states and 1687 transitions. [2024-12-02 10:23:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 10:23:54,796 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) Word has length 121 [2024-12-02 10:23:54,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:54,800 INFO L225 Difference]: With dead ends: 1172 [2024-12-02 10:23:54,800 INFO L226 Difference]: Without dead ends: 917 [2024-12-02 10:23:54,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 235 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=290, Invalid=970, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:23:54,802 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 1229 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:54,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1409 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:23:54,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-12-02 10:23:54,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 274. [2024-12-02 10:23:54,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 247 states have (on average 1.4291497975708503) internal successors, (353), 248 states have internal predecessors, (353), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:23:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 393 transitions. [2024-12-02 10:23:54,830 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 393 transitions. Word has length 121 [2024-12-02 10:23:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:54,830 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 393 transitions. [2024-12-02 10:23:54,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) [2024-12-02 10:23:54,831 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 393 transitions. [2024-12-02 10:23:54,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:23:54,832 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:54,832 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:54,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 10:23:55,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:55,033 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:55,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:55,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1673279909, now seen corresponding path program 1 times [2024-12-02 10:23:55,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:55,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013737108] [2024-12-02 10:23:55,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:55,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:23:55,094 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:23:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:23:55,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:23:55,179 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:23:55,180 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:23:55,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:23:55,184 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:55,241 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:23:55,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:23:55 BoogieIcfgContainer [2024-12-02 10:23:55,244 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:23:55,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:23:55,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:23:55,245 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:23:55,245 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:23:46" (3/4) ... [2024-12-02 10:23:55,247 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 10:23:55,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:23:55,249 INFO L158 Benchmark]: Toolchain (without parser) took 10333.96ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 117.5MB in the beginning and 185.3MB in the end (delta: -67.7MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2024-12-02 10:23:55,249 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:23:55,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.44ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 100.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:23:55,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.60ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 94.8MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:23:55,250 INFO L158 Benchmark]: Boogie Preprocessor took 74.57ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 88.9MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:23:55,250 INFO L158 Benchmark]: RCFGBuilder took 743.67ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 104.9MB in the end (delta: -16.1MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-12-02 10:23:55,250 INFO L158 Benchmark]: TraceAbstraction took 9179.78ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 104.2MB in the beginning and 185.3MB in the end (delta: -81.1MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2024-12-02 10:23:55,250 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 318.8MB. Free memory was 185.3MB in the beginning and 185.3MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:23:55,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.44ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 100.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.60ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 94.8MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.57ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 88.9MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 743.67ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 104.9MB in the end (delta: -16.1MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9179.78ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 104.2MB in the beginning and 185.3MB in the end (delta: -81.1MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 318.8MB. Free memory was 185.3MB in the beginning and 185.3MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 72, overapproximation of someBinaryFLOATComparisonOperation at line 50, overapproximation of someBinaryFLOATComparisonOperation at line 74, overapproximation of someBinaryFLOATComparisonOperation at line 74, overapproximation of someBinaryFLOATComparisonOperation at line 72, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 0}, {1, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 0}, {1, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 0}, {1, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 0}, {1, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 0}, {1, 0} }; [L25-L27] float float_Array_0[2] = { 1000.2, 1000000000000000.4 }; [L25-L27] float float_Array_0[2] = { 1000.2, 1000000000000000.4 }; [L25-L27] float float_Array_0[2] = { 1000.2, 1000000000000000.4 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { -2, 128 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { -2, 128 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { -2, 128 }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2][2] = { {10, 256}, {4, 4} }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2][2] = { {10, 256}, {4, 4} }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2][2] = { {10, 256}, {4, 4} }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2][2] = { {10, 256}, {4, 4} }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2][2] = { {10, 256}, {4, 4} }; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L95] isInitial = 1 [L96] FCALL initially() [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L65] BOOL_unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L66] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L66] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L66] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L67] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L67] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L67] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L68] BOOL_unsigned_char_Array_0[1][1] = __VERIFIER_nondet_uchar() [L69] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L70] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L71] float_Array_0[0] = __VERIFIER_nondet_float() [L72] EXPR float_Array_0[0] [L72] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L72] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F [L72] EXPR float_Array_0[0] [L72] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L72] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L72] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L72] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L72] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L73] float_Array_0[1] = __VERIFIER_nondet_float() [L74] EXPR float_Array_0[1] [L74] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F [L74] EXPR float_Array_0[1] [L74] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] EXPR (float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] EXPR (float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L75] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L76] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L76] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L76] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L78] unsigned_short_int_Array_0[0][0] = __VERIFIER_nondet_ushort() [L79] EXPR unsigned_short_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] RET assume_abort_if_not(unsigned_short_int_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L80] EXPR unsigned_short_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L80] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L80] RET assume_abort_if_not(unsigned_short_int_Array_0[0][0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] unsigned_short_int_Array_0[1][0] = __VERIFIER_nondet_ushort() [L82] EXPR unsigned_short_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L82] CALL assume_abort_if_not(unsigned_short_int_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L82] RET assume_abort_if_not(unsigned_short_int_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] EXPR unsigned_short_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] CALL assume_abort_if_not(unsigned_short_int_Array_0[1][0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] RET assume_abort_if_not(unsigned_short_int_Array_0[1][0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] unsigned_short_int_Array_0[0][1] = __VERIFIER_nondet_ushort() [L85] EXPR unsigned_short_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L85] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L85] RET assume_abort_if_not(unsigned_short_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L86] EXPR unsigned_short_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L86] CALL assume_abort_if_not(unsigned_short_int_Array_0[0][1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L86] RET assume_abort_if_not(unsigned_short_int_Array_0[0][1] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L99] RET updateVariables() [L100] CALL step() [L37] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L37] EXPR ((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0]) [L37] EXPR signed_short_int_Array_0[0] [L37] EXPR ((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L37] signed_short_int_Array_0[1] = ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0]))) [L38] EXPR unsigned_short_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L38] EXPR 50 >> unsigned_short_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L38] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L38] COND FALSE !((50 >> unsigned_short_int_Array_0[0][1]) <= signed_short_int_Array_0[1]) [L41] EXPR BOOL_unsigned_char_Array_0[1][1] [L41] BOOL_unsigned_char_Array_0[0][1] = (! BOOL_unsigned_char_Array_0[1][1]) [L43] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L43] COND TRUE ! BOOL_unsigned_char_Array_0[0][0] [L44] EXPR unsigned_short_int_Array_0[0][1] [L44] EXPR unsigned_short_int_Array_0[0][0] [L44] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L44] EXPR ((unsigned_short_int_Array_0[0][0]) < (signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[0][0]) : (signed_short_int_Array_0[1]) [L44] EXPR unsigned_short_int_Array_0[0][0] [L44] EXPR ((unsigned_short_int_Array_0[0][0]) < (signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[0][0]) : (signed_short_int_Array_0[1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L44] COND FALSE !(unsigned_short_int_Array_0[0][1] >= ((((unsigned_short_int_Array_0[0][0]) < (signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[0][0]) : (signed_short_int_Array_0[1])))) [L47] EXPR BOOL_unsigned_char_Array_0[1][1] [L47] BOOL_unsigned_char_Array_0[1][0] = BOOL_unsigned_char_Array_0[1][1] [L50] EXPR float_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L50] COND TRUE float_Array_0[1] >= 64.5f [L51] EXPR float_Array_0[1] [L51] EXPR float_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L51] COND FALSE !(float_Array_0[1] >= float_Array_0[0]) [L54] BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L54] COND FALSE !(BOOL_unsigned_char_Array_0[1][0]) [L57] EXPR unsigned_short_int_Array_0[0][0] [L57] unsigned_short_int_Array_0[1][1] = unsigned_short_int_Array_0[0][0] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR float_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] EXPR (float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50)) [L91] EXPR unsigned_short_int_Array_0[1][1] [L91] EXPR (float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] EXPR ((float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50))) && (signed_short_int_Array_0[1] == ((signed short int) ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] EXPR ((float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50))) && (signed_short_int_Array_0[1] == ((signed short int) ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] EXPR (((float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50))) && (signed_short_int_Array_0[1] == ((signed short int) ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0])))))) && (((50 >> unsigned_short_int_Array_0[0][1]) <= signed_short_int_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) ((! (! BOOL_unsigned_char_Array_0[1][1])) || BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[1][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] EXPR (((float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50))) && (signed_short_int_Array_0[1] == ((signed short int) ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0])))))) && (((50 >> unsigned_short_int_Array_0[0][1]) <= signed_short_int_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) ((! (! BOOL_unsigned_char_Array_0[1][1])) || BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[1][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] EXPR ((((float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50))) && (signed_short_int_Array_0[1] == ((signed short int) ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0])))))) && (((50 >> unsigned_short_int_Array_0[0][1]) <= signed_short_int_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) ((! (! BOOL_unsigned_char_Array_0[1][1])) || BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[1][1]))))) && ((! BOOL_unsigned_char_Array_0[0][0]) ? ((unsigned_short_int_Array_0[0][1] >= ((((unsigned_short_int_Array_0[0][0]) < (signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[0][0]) : (signed_short_int_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[0][1] && BOOL_unsigned_char_Array_0[1][1]))) : (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) BOOL_unsigned_char_Array_0[1][1]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] EXPR ((((float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50))) && (signed_short_int_Array_0[1] == ((signed short int) ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0])))))) && (((50 >> unsigned_short_int_Array_0[0][1]) <= signed_short_int_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) ((! (! BOOL_unsigned_char_Array_0[1][1])) || BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[1][1]))))) && ((! BOOL_unsigned_char_Array_0[0][0]) ? ((unsigned_short_int_Array_0[0][1] >= ((((unsigned_short_int_Array_0[0][0]) < (signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[0][0]) : (signed_short_int_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[0][1] && BOOL_unsigned_char_Array_0[1][1]))) : (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) BOOL_unsigned_char_Array_0[1][1]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91-L92] return ((((float_Array_0[1] >= 64.5f) ? ((float_Array_0[1] >= float_Array_0[0]) ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) < 0 ) ? -((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))) : ((((unsigned_short_int_Array_0[0][1]) > (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0]))))) ? (unsigned_short_int_Array_0[0][1]) : (((((unsigned_short_int_Array_0[1][0]) > (unsigned_short_int_Array_0[0][0])) ? (unsigned_short_int_Array_0[1][0]) : (unsigned_short_int_Array_0[0][0])))))))))) : (BOOL_unsigned_char_Array_0[1][0] ? (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[1][0])) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) unsigned_short_int_Array_0[0][0])))) : (unsigned_short_int_Array_0[1][1] == ((unsigned short int) 50))) && (signed_short_int_Array_0[1] == ((signed short int) ((((signed_short_int_Array_0[0]) < 0 ) ? -(signed_short_int_Array_0[0]) : (signed_short_int_Array_0[0])))))) && (((50 >> unsigned_short_int_Array_0[0][1]) <= signed_short_int_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) ((! (! BOOL_unsigned_char_Array_0[1][1])) || BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[1][1]))))) && ((! BOOL_unsigned_char_Array_0[0][0]) ? ((unsigned_short_int_Array_0[0][1] >= ((((unsigned_short_int_Array_0[0][0]) < (signed_short_int_Array_0[1])) ? (unsigned_short_int_Array_0[0][0]) : (signed_short_int_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[0][1] && BOOL_unsigned_char_Array_0[1][1]))) : (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) BOOL_unsigned_char_Array_0[1][1]))) : 1) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 7, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2345 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2336 mSDsluCounter, 5523 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4297 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1411 IncrementalHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 1226 mSDtfsCounter, 1411 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 794 GetRequests, 712 SyntacticMatches, 10 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=6, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 975 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1309 NumberOfCodeBlocks, 1309 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1416 ConstructedInterpolants, 0 QuantifiedInterpolants, 5913 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1591 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 4072/4368 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 10:23:55,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6499b62d1470f924cb4a1d4c6eb228c557a21b7be97bcd4aa73e963f3e1c7410 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:23:57,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:23:57,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 10:23:57,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:23:57,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:23:57,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:23:57,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:23:57,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:23:57,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:23:57,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:23:57,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:23:57,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:23:57,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:23:57,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:23:57,296 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:23:57,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:23:57,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:23:57,298 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:23:57,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:23:57,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:23:57,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:23:57,299 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6499b62d1470f924cb4a1d4c6eb228c557a21b7be97bcd4aa73e963f3e1c7410 [2024-12-02 10:23:57,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:23:57,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:23:57,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:23:57,547 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:23:57,547 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:23:57,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i [2024-12-02 10:24:00,289 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/dbeb80f00/4a4a9518f3a740f9a81fdd75c9682225/FLAG6ccfcdfcb [2024-12-02 10:24:00,469 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:24:00,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i [2024-12-02 10:24:00,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/dbeb80f00/4a4a9518f3a740f9a81fdd75c9682225/FLAG6ccfcdfcb [2024-12-02 10:24:00,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/data/dbeb80f00/4a4a9518f3a740f9a81fdd75c9682225 [2024-12-02 10:24:00,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:24:00,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:24:00,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:24:00,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:24:00,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:24:00,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2e7531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00, skipping insertion in model container [2024-12-02 10:24:00,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,519 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:24:00,650 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i[916,929] [2024-12-02 10:24:00,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:24:00,734 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:24:00,742 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-49.i[916,929] [2024-12-02 10:24:00,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:24:00,815 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:24:00,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00 WrapperNode [2024-12-02 10:24:00,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:24:00,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:24:00,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:24:00,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:24:00,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,870 INFO L138 Inliner]: procedures = 33, calls = 195, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 646 [2024-12-02 10:24:00,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:24:00,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:24:00,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:24:00,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:24:00,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,905 INFO L175 MemorySlicer]: Split 166 memory accesses to 5 slices as follows [2, 34, 18, 19, 93]. 56 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 2, 2, 4]. The 17 writes are split as follows [0, 6, 2, 2, 7]. [2024-12-02 10:24:00,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,931 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:24:00,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:24:00,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:24:00,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:24:00,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (1/1) ... [2024-12-02 10:24:00,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:24:00,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:00,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:24:00,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 10:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 10:24:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 10:24:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:24:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:24:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 10:24:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 10:24:01,158 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:24:01,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:24:01,784 INFO L? ?]: Removed 212 outVars from TransFormulas that were not future-live. [2024-12-02 10:24:01,784 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:24:01,796 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:24:01,796 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:24:01,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:24:01 BoogieIcfgContainer [2024-12-02 10:24:01,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:24:01,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:24:01,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:24:01,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:24:01,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:24:00" (1/3) ... [2024-12-02 10:24:01,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df8e325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:24:01, skipping insertion in model container [2024-12-02 10:24:01,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:00" (2/3) ... [2024-12-02 10:24:01,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df8e325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:24:01, skipping insertion in model container [2024-12-02 10:24:01,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:24:01" (3/3) ... [2024-12-02 10:24:01,805 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-49.i [2024-12-02 10:24:01,820 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:24:01,821 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-49.i that has 2 procedures, 130 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:24:01,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:24:01,880 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@772efebb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:24:01,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:24:01,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 114 states have internal predecessors, (167), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:24:01,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:24:01,895 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:01,895 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:01,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:01,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash -705705352, now seen corresponding path program 1 times [2024-12-02 10:24:01,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:01,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050826021] [2024-12-02 10:24:01,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:01,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:01,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:01,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:01,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 10:24:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:02,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:24:02,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-12-02 10:24:02,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:02,257 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:02,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050826021] [2024-12-02 10:24:02,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050826021] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:02,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:02,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:24:02,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720877913] [2024-12-02 10:24:02,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:02,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:24:02,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:02,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:24:02,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:24:02,282 INFO L87 Difference]: Start difference. First operand has 130 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 114 states have internal predecessors, (167), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:02,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:02,312 INFO L93 Difference]: Finished difference Result 253 states and 398 transitions. [2024-12-02 10:24:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:24:02,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-12-02 10:24:02,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:02,321 INFO L225 Difference]: With dead ends: 253 [2024-12-02 10:24:02,321 INFO L226 Difference]: Without dead ends: 126 [2024-12-02 10:24:02,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:24:02,327 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:02,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:24:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-12-02 10:24:02,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-12-02 10:24:02,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 110 states have (on average 1.4545454545454546) internal successors, (160), 110 states have internal predecessors, (160), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:24:02,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 188 transitions. [2024-12-02 10:24:02,377 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 188 transitions. Word has length 115 [2024-12-02 10:24:02,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:02,377 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 188 transitions. [2024-12-02 10:24:02,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 188 transitions. [2024-12-02 10:24:02,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:24:02,380 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:02,380 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:02,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 10:24:02,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:02,581 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:02,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:02,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1616218656, now seen corresponding path program 1 times [2024-12-02 10:24:02,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:02,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739123565] [2024-12-02 10:24:02,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:02,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:02,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:02,585 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:02,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 10:24:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:02,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:24:02,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:02,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:24:03,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-12-02 10:24:03,054 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:03,054 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:03,054 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739123565] [2024-12-02 10:24:03,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739123565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:03,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:03,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:24:03,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841642630] [2024-12-02 10:24:03,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:03,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:24:03,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:03,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:24:03,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:24:03,058 INFO L87 Difference]: Start difference. First operand 126 states and 188 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:03,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:03,582 INFO L93 Difference]: Finished difference Result 374 states and 561 transitions. [2024-12-02 10:24:03,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:24:03,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-12-02 10:24:03,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:03,585 INFO L225 Difference]: With dead ends: 374 [2024-12-02 10:24:03,586 INFO L226 Difference]: Without dead ends: 251 [2024-12-02 10:24:03,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:24:03,587 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 179 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:03,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 838 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:24:03,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-12-02 10:24:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 130. [2024-12-02 10:24:03,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.4473684210526316) internal successors, (165), 114 states have internal predecessors, (165), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:24:03,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 193 transitions. [2024-12-02 10:24:03,603 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 193 transitions. Word has length 115 [2024-12-02 10:24:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:03,604 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 193 transitions. [2024-12-02 10:24:03,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:03,604 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 193 transitions. [2024-12-02 10:24:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:24:03,606 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:03,606 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:03,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 10:24:03,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:03,807 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:03,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1437344069, now seen corresponding path program 1 times [2024-12-02 10:24:03,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:03,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853758435] [2024-12-02 10:24:03,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:03,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:03,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:03,810 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:03,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 10:24:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:04,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:24:04,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:04,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:04,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 10:24:04,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 10:24:04,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-12-02 10:24:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 10:24:04,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:24:04,649 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:04,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853758435] [2024-12-02 10:24:04,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853758435] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:24:04,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:24:04,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-02 10:24:04,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157239602] [2024-12-02 10:24:04,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:24:04,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:24:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:04,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:24:04,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:24:04,652 INFO L87 Difference]: Start difference. First operand 130 states and 193 transitions. Second operand has 11 states, 9 states have (on average 6.888888888888889) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 10:24:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:05,020 INFO L93 Difference]: Finished difference Result 265 states and 390 transitions. [2024-12-02 10:24:05,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:24:05,021 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.888888888888889) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) Word has length 117 [2024-12-02 10:24:05,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:05,022 INFO L225 Difference]: With dead ends: 265 [2024-12-02 10:24:05,022 INFO L226 Difference]: Without dead ends: 138 [2024-12-02 10:24:05,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:24:05,023 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 382 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:05,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 702 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:24:05,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-12-02 10:24:05,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2024-12-02 10:24:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 117 states have (on average 1.4273504273504274) internal successors, (167), 117 states have internal predecessors, (167), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:24:05,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 195 transitions. [2024-12-02 10:24:05,035 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 195 transitions. Word has length 117 [2024-12-02 10:24:05,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:05,036 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 195 transitions. [2024-12-02 10:24:05,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.888888888888889) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 10:24:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 195 transitions. [2024-12-02 10:24:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:24:05,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:05,038 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:05,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 10:24:05,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:05,239 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:05,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:05,240 INFO L85 PathProgramCache]: Analyzing trace with hash -851948171, now seen corresponding path program 1 times [2024-12-02 10:24:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:05,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298409713] [2024-12-02 10:24:05,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:05,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:05,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:05,242 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:05,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 10:24:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:05,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:24:05,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:05,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 10:24:05,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2024-12-02 10:24:06,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:06,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 38 [2024-12-02 10:24:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 10:24:06,450 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:06,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:06,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298409713] [2024-12-02 10:24:06,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298409713] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:06,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:06,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:24:06,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290980001] [2024-12-02 10:24:06,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:06,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:24:06,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:06,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:24:06,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:06,452 INFO L87 Difference]: Start difference. First operand 134 states and 195 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:07,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:07,807 INFO L93 Difference]: Finished difference Result 485 states and 708 transitions. [2024-12-02 10:24:07,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:24:07,808 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-12-02 10:24:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:07,810 INFO L225 Difference]: With dead ends: 485 [2024-12-02 10:24:07,810 INFO L226 Difference]: Without dead ends: 354 [2024-12-02 10:24:07,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:24:07,812 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 658 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:07,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1937 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:24:07,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-12-02 10:24:07,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 297. [2024-12-02 10:24:07,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 272 states have (on average 1.474264705882353) internal successors, (401), 273 states have internal predecessors, (401), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:24:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 441 transitions. [2024-12-02 10:24:07,836 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 441 transitions. Word has length 119 [2024-12-02 10:24:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:07,837 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 441 transitions. [2024-12-02 10:24:07,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:07,837 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 441 transitions. [2024-12-02 10:24:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:24:07,839 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:07,839 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:07,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-12-02 10:24:08,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:08,040 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:08,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:08,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1244975181, now seen corresponding path program 1 times [2024-12-02 10:24:08,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:08,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977374513] [2024-12-02 10:24:08,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:08,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:08,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:08,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:08,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 10:24:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:08,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:24:08,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:08,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:24:08,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:24:08,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:08,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 15 [2024-12-02 10:24:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:08,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:08,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:08,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977374513] [2024-12-02 10:24:08,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977374513] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:08,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:08,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:24:08,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568546407] [2024-12-02 10:24:08,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:08,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:08,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:08,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:08,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:08,463 INFO L87 Difference]: Start difference. First operand 297 states and 441 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:08,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:08,633 INFO L93 Difference]: Finished difference Result 702 states and 1041 transitions. [2024-12-02 10:24:08,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:08,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:24:08,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:08,637 INFO L225 Difference]: With dead ends: 702 [2024-12-02 10:24:08,637 INFO L226 Difference]: Without dead ends: 408 [2024-12-02 10:24:08,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:24:08,638 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 280 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:08,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 677 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:24:08,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-12-02 10:24:08,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 302. [2024-12-02 10:24:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 277 states have (on average 1.4657039711191335) internal successors, (406), 278 states have internal predecessors, (406), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:24:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 446 transitions. [2024-12-02 10:24:08,659 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 446 transitions. Word has length 119 [2024-12-02 10:24:08,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:08,659 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 446 transitions. [2024-12-02 10:24:08,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 446 transitions. [2024-12-02 10:24:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:24:08,661 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:08,661 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:08,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 10:24:08,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:08,861 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:08,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:08,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1908134670, now seen corresponding path program 1 times [2024-12-02 10:24:08,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:08,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808770709] [2024-12-02 10:24:08,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:08,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:08,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:08,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:08,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 10:24:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:09,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:24:09,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:09,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2024-12-02 10:24:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 10:24:09,724 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:09,724 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:09,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808770709] [2024-12-02 10:24:09,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808770709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:09,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:09,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:24:09,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902648212] [2024-12-02 10:24:09,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:09,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:24:09,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:09,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:24:09,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:24:09,726 INFO L87 Difference]: Start difference. First operand 302 states and 446 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:10,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:10,287 INFO L93 Difference]: Finished difference Result 834 states and 1223 transitions. [2024-12-02 10:24:10,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:10,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-12-02 10:24:10,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:10,291 INFO L225 Difference]: With dead ends: 834 [2024-12-02 10:24:10,291 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 10:24:10,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:10,292 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 348 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:10,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 790 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:24:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 10:24:10,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 531. [2024-12-02 10:24:10,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 482 states have (on average 1.4398340248962656) internal successors, (694), 486 states have internal predecessors, (694), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 36 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 10:24:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 774 transitions. [2024-12-02 10:24:10,341 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 774 transitions. Word has length 119 [2024-12-02 10:24:10,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:10,341 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 774 transitions. [2024-12-02 10:24:10,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 774 transitions. [2024-12-02 10:24:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:24:10,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:10,344 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:10,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 10:24:10,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:10,545 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:10,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:10,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1448874419, now seen corresponding path program 1 times [2024-12-02 10:24:10,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:10,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632632823] [2024-12-02 10:24:10,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:10,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:10,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:10,547 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:10,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 10:24:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:10,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:24:10,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:10,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:24:10,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-12-02 10:24:11,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:11,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 35 [2024-12-02 10:24:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:11,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:11,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:11,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632632823] [2024-12-02 10:24:11,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632632823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:11,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:11,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:24:11,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292422396] [2024-12-02 10:24:11,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:11,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:24:11,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:11,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:24:11,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:24:11,282 INFO L87 Difference]: Start difference. First operand 531 states and 774 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:12,314 INFO L93 Difference]: Finished difference Result 1429 states and 2075 transitions. [2024-12-02 10:24:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:24:12,315 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:24:12,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:12,319 INFO L225 Difference]: With dead ends: 1429 [2024-12-02 10:24:12,319 INFO L226 Difference]: Without dead ends: 901 [2024-12-02 10:24:12,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:24:12,321 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 283 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:12,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 3264 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:24:12,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-12-02 10:24:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 533. [2024-12-02 10:24:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 484 states have (on average 1.4421487603305785) internal successors, (698), 488 states have internal predecessors, (698), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 36 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 10:24:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 778 transitions. [2024-12-02 10:24:12,362 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 778 transitions. Word has length 119 [2024-12-02 10:24:12,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:12,362 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 778 transitions. [2024-12-02 10:24:12,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 778 transitions. [2024-12-02 10:24:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:24:12,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:12,365 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:12,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 10:24:12,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:12,565 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:12,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:12,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1637580791, now seen corresponding path program 1 times [2024-12-02 10:24:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:12,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355755129] [2024-12-02 10:24:12,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:12,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:12,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:12,567 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:12,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 10:24:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:12,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:24:12,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:12,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 10:24:12,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-12-02 10:24:13,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:13,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 20 [2024-12-02 10:24:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 10:24:13,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:13,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:13,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355755129] [2024-12-02 10:24:13,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355755129] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:13,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:13,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:24:13,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956862934] [2024-12-02 10:24:13,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:13,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:24:13,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:13,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:24:13,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:24:13,100 INFO L87 Difference]: Start difference. First operand 533 states and 778 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:13,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:13,420 INFO L93 Difference]: Finished difference Result 1075 states and 1562 transitions. [2024-12-02 10:24:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:24:13,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-12-02 10:24:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:13,424 INFO L225 Difference]: With dead ends: 1075 [2024-12-02 10:24:13,424 INFO L226 Difference]: Without dead ends: 545 [2024-12-02 10:24:13,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:13,426 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 430 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:13,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1000 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:24:13,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-12-02 10:24:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 443. [2024-12-02 10:24:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 408 states have (on average 1.4509803921568627) internal successors, (592), 409 states have internal predecessors, (592), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 10:24:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 648 transitions. [2024-12-02 10:24:13,464 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 648 transitions. Word has length 119 [2024-12-02 10:24:13,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:13,464 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 648 transitions. [2024-12-02 10:24:13,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 648 transitions. [2024-12-02 10:24:13,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:24:13,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:13,465 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:13,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 10:24:13,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:13,666 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:13,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:13,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1244553781, now seen corresponding path program 1 times [2024-12-02 10:24:13,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:13,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866962501] [2024-12-02 10:24:13,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:13,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:13,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:13,668 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:13,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 10:24:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:13,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:24:13,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:13,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:24:14,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-12-02 10:24:14,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:14,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 32 [2024-12-02 10:24:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:14,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:14,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:14,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866962501] [2024-12-02 10:24:14,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866962501] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:14,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:14,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:24:14,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093711734] [2024-12-02 10:24:14,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:14,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:24:14,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:14,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:24:14,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:24:14,257 INFO L87 Difference]: Start difference. First operand 443 states and 648 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:14,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:14,749 INFO L93 Difference]: Finished difference Result 1079 states and 1574 transitions. [2024-12-02 10:24:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:24:14,750 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:24:14,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:14,752 INFO L225 Difference]: With dead ends: 1079 [2024-12-02 10:24:14,752 INFO L226 Difference]: Without dead ends: 639 [2024-12-02 10:24:14,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:14,753 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 142 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:14,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2449 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:24:14,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-12-02 10:24:14,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 533. [2024-12-02 10:24:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 498 states have (on average 1.465863453815261) internal successors, (730), 499 states have internal predecessors, (730), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 10:24:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 786 transitions. [2024-12-02 10:24:14,787 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 786 transitions. Word has length 119 [2024-12-02 10:24:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:14,788 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 786 transitions. [2024-12-02 10:24:14,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:14,788 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 786 transitions. [2024-12-02 10:24:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:24:14,790 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:14,790 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:14,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 10:24:14,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:14,991 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:14,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash 850296592, now seen corresponding path program 1 times [2024-12-02 10:24:14,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:14,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311263076] [2024-12-02 10:24:14,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:14,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:14,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:14,993 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:14,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 10:24:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:15,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:24:15,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:15,209 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 10:24:15,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:15,209 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:15,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311263076] [2024-12-02 10:24:15,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311263076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:15,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:15,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:24:15,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203281172] [2024-12-02 10:24:15,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:15,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:15,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:15,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:15,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:15,210 INFO L87 Difference]: Start difference. First operand 533 states and 786 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:15,249 INFO L93 Difference]: Finished difference Result 1063 states and 1569 transitions. [2024-12-02 10:24:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:15,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-12-02 10:24:15,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:15,251 INFO L225 Difference]: With dead ends: 1063 [2024-12-02 10:24:15,251 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 10:24:15,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:15,253 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:15,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 547 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:24:15,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 10:24:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-12-02 10:24:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 498 states have (on average 1.463855421686747) internal successors, (729), 499 states have internal predecessors, (729), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 10:24:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 785 transitions. [2024-12-02 10:24:15,285 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 785 transitions. Word has length 119 [2024-12-02 10:24:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:15,285 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 785 transitions. [2024-12-02 10:24:15,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 785 transitions. [2024-12-02 10:24:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:24:15,287 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:15,287 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:15,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 10:24:15,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:15,487 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:15,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:15,488 INFO L85 PathProgramCache]: Analyzing trace with hash 578744404, now seen corresponding path program 1 times [2024-12-02 10:24:15,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:15,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482951745] [2024-12-02 10:24:15,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:15,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:15,489 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:15,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 10:24:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:15,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:24:15,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:15,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 21 [2024-12-02 10:24:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:15,950 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:15,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:15,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482951745] [2024-12-02 10:24:15,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482951745] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:15,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:15,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:24:15,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580947861] [2024-12-02 10:24:15,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:15,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:15,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:15,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:15,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:15,952 INFO L87 Difference]: Start difference. First operand 533 states and 785 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:16,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:16,270 INFO L93 Difference]: Finished difference Result 1205 states and 1775 transitions. [2024-12-02 10:24:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:16,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 10:24:16,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:16,273 INFO L225 Difference]: With dead ends: 1205 [2024-12-02 10:24:16,273 INFO L226 Difference]: Without dead ends: 675 [2024-12-02 10:24:16,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:24:16,275 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 214 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:16,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 772 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:24:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-12-02 10:24:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 672. [2024-12-02 10:24:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 630 states have (on average 1.4619047619047618) internal successors, (921), 632 states have internal predecessors, (921), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 10:24:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 987 transitions. [2024-12-02 10:24:16,312 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 987 transitions. Word has length 121 [2024-12-02 10:24:16,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:16,312 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 987 transitions. [2024-12-02 10:24:16,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 987 transitions. [2024-12-02 10:24:16,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:24:16,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:16,314 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:16,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 10:24:16,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:16,514 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:16,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:16,515 INFO L85 PathProgramCache]: Analyzing trace with hash 912621421, now seen corresponding path program 1 times [2024-12-02 10:24:16,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:16,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991092180] [2024-12-02 10:24:16,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:16,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:16,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:16,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:16,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-12-02 10:24:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:16,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:24:16,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:17,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2024-12-02 10:24:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 10:24:17,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:17,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:17,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991092180] [2024-12-02 10:24:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991092180] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:17,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:24:17,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042320301] [2024-12-02 10:24:17,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:17,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:24:17,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:17,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:24:17,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:24:17,317 INFO L87 Difference]: Start difference. First operand 672 states and 987 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:17,845 INFO L93 Difference]: Finished difference Result 1256 states and 1833 transitions. [2024-12-02 10:24:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:17,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-12-02 10:24:17,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:17,847 INFO L225 Difference]: With dead ends: 1256 [2024-12-02 10:24:17,847 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 10:24:17,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:17,848 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 230 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:17,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 788 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:24:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 10:24:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 584. [2024-12-02 10:24:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 542 states have (on average 1.433579335793358) internal successors, (777), 544 states have internal predecessors, (777), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 10:24:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 843 transitions. [2024-12-02 10:24:17,872 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 843 transitions. Word has length 121 [2024-12-02 10:24:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:17,872 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 843 transitions. [2024-12-02 10:24:17,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 843 transitions. [2024-12-02 10:24:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:24:17,873 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:17,873 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:17,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-02 10:24:18,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:18,074 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:18,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:18,074 INFO L85 PathProgramCache]: Analyzing trace with hash 36513319, now seen corresponding path program 1 times [2024-12-02 10:24:18,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:18,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098058555] [2024-12-02 10:24:18,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:18,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:18,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:18,076 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:18,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-12-02 10:24:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:18,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:24:18,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:18,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:24:18,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 51 [2024-12-02 10:24:18,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:18,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 38 [2024-12-02 10:24:19,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:19,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 126 treesize of output 66 [2024-12-02 10:24:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-12-02 10:24:19,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:19,434 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:19,434 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:19,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098058555] [2024-12-02 10:24:19,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098058555] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:19,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:24:19,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 14 [2024-12-02 10:24:19,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137059802] [2024-12-02 10:24:19,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:19,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:19,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:19,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:19,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:24:19,435 INFO L87 Difference]: Start difference. First operand 584 states and 843 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:19,693 INFO L93 Difference]: Finished difference Result 1349 states and 1941 transitions. [2024-12-02 10:24:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:19,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 10:24:19,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:19,695 INFO L225 Difference]: With dead ends: 1349 [2024-12-02 10:24:19,695 INFO L226 Difference]: Without dead ends: 768 [2024-12-02 10:24:19,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:24:19,697 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 109 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:19,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 865 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:24:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-12-02 10:24:19,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 688. [2024-12-02 10:24:19,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 646 states have (on average 1.438080495356037) internal successors, (929), 648 states have internal predecessors, (929), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 10:24:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 995 transitions. [2024-12-02 10:24:19,749 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 995 transitions. Word has length 121 [2024-12-02 10:24:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:19,750 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 995 transitions. [2024-12-02 10:24:19,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 995 transitions. [2024-12-02 10:24:19,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:24:19,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:19,751 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:19,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-12-02 10:24:19,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:19,952 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:19,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:19,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2083950962, now seen corresponding path program 1 times [2024-12-02 10:24:19,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:19,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621584004] [2024-12-02 10:24:19,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:19,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:19,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:19,954 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:19,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-12-02 10:24:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:20,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 10:24:20,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:20,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:24:20,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:24:20,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:24:20,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:20,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 46 [2024-12-02 10:24:21,084 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:24:21,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:21,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2024-12-02 10:24:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:21,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:21,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621584004] [2024-12-02 10:24:21,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621584004] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:21,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:24:21,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 25 [2024-12-02 10:24:21,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034394255] [2024-12-02 10:24:21,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:21,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:24:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:21,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:24:21,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:24:21,575 INFO L87 Difference]: Start difference. First operand 688 states and 995 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:23,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:23,889 INFO L93 Difference]: Finished difference Result 1686 states and 2398 transitions. [2024-12-02 10:24:23,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:24:23,890 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 10:24:23,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:23,892 INFO L225 Difference]: With dead ends: 1686 [2024-12-02 10:24:23,892 INFO L226 Difference]: Without dead ends: 1001 [2024-12-02 10:24:23,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2024-12-02 10:24:23,893 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 417 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:23,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 2213 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:24:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-12-02 10:24:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 598. [2024-12-02 10:24:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 556 states have (on average 1.4280575539568345) internal successors, (794), 558 states have internal predecessors, (794), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 10:24:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 860 transitions. [2024-12-02 10:24:23,940 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 860 transitions. Word has length 121 [2024-12-02 10:24:23,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:23,940 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 860 transitions. [2024-12-02 10:24:23,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:23,941 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 860 transitions. [2024-12-02 10:24:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:24:23,942 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:23,942 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:23,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-12-02 10:24:24,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:24,143 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:24,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1680529936, now seen corresponding path program 1 times [2024-12-02 10:24:24,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:24,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633376816] [2024-12-02 10:24:24,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:24,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:24,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:24,145 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:24,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-02 10:24:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:24,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:24:24,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:24,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2024-12-02 10:24:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 10:24:24,541 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:24:24,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:24,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633376816] [2024-12-02 10:24:24,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633376816] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:24:24,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:24:24,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-12-02 10:24:24,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000078094] [2024-12-02 10:24:24,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:24:24,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:24:24,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:24,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:24:24,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:24:24,736 INFO L87 Difference]: Start difference. First operand 598 states and 860 transitions. Second operand has 10 states, 8 states have (on average 8.0) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:24:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:25,058 INFO L93 Difference]: Finished difference Result 1221 states and 1742 transitions. [2024-12-02 10:24:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:24:25,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.0) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) Word has length 121 [2024-12-02 10:24:25,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:25,061 INFO L225 Difference]: With dead ends: 1221 [2024-12-02 10:24:25,061 INFO L226 Difference]: Without dead ends: 626 [2024-12-02 10:24:25,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:24:25,062 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 258 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:25,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 699 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:24:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-12-02 10:24:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 610. [2024-12-02 10:24:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 565 states have (on average 1.4141592920353983) internal successors, (799), 567 states have internal predecessors, (799), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 10:24:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 865 transitions. [2024-12-02 10:24:25,110 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 865 transitions. Word has length 121 [2024-12-02 10:24:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:25,111 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 865 transitions. [2024-12-02 10:24:25,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.0) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:24:25,111 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 865 transitions. [2024-12-02 10:24:25,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:24:25,112 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:25,112 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:25,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-02 10:24:25,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:25,313 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:25,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:25,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1461675218, now seen corresponding path program 1 times [2024-12-02 10:24:25,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:25,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775307525] [2024-12-02 10:24:25,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:25,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:25,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:25,315 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:25,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 10:24:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:25,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:24:25,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:25,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 10:24:25,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2024-12-02 10:24:25,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:25,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 32 [2024-12-02 10:24:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 10:24:26,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:26,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:26,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775307525] [2024-12-02 10:24:26,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775307525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:26,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:26,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:24:26,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103416739] [2024-12-02 10:24:26,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:26,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:24:26,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:26,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:24:26,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:24:26,047 INFO L87 Difference]: Start difference. First operand 610 states and 865 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:27,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:27,060 INFO L93 Difference]: Finished difference Result 1379 states and 1937 transitions. [2024-12-02 10:24:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:24:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-12-02 10:24:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:27,063 INFO L225 Difference]: With dead ends: 1379 [2024-12-02 10:24:27,063 INFO L226 Difference]: Without dead ends: 772 [2024-12-02 10:24:27,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:27,064 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 296 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:27,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 2146 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:24:27,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-12-02 10:24:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 619. [2024-12-02 10:24:27,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 574 states have (on average 1.4076655052264808) internal successors, (808), 576 states have internal predecessors, (808), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 10:24:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 874 transitions. [2024-12-02 10:24:27,109 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 874 transitions. Word has length 121 [2024-12-02 10:24:27,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:27,110 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 874 transitions. [2024-12-02 10:24:27,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 874 transitions. [2024-12-02 10:24:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:24:27,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:27,112 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:27,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 10:24:27,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:27,312 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:27,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:27,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1714153618, now seen corresponding path program 1 times [2024-12-02 10:24:27,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:27,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884641255] [2024-12-02 10:24:27,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:27,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:27,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:27,315 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:27,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-12-02 10:24:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:27,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:24:27,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:27,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 10:24:27,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2024-12-02 10:24:27,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:27,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 22 [2024-12-02 10:24:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 10:24:27,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:27,945 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:27,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884641255] [2024-12-02 10:24:27,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884641255] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:27,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:27,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:24:27,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980369795] [2024-12-02 10:24:27,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:27,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:24:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:27,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:24:27,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:24:27,946 INFO L87 Difference]: Start difference. First operand 619 states and 874 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:28,638 INFO L93 Difference]: Finished difference Result 1417 states and 1979 transitions. [2024-12-02 10:24:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:24:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-12-02 10:24:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:28,642 INFO L225 Difference]: With dead ends: 1417 [2024-12-02 10:24:28,642 INFO L226 Difference]: Without dead ends: 801 [2024-12-02 10:24:28,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:28,643 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 295 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:28,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 2189 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:24:28,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-12-02 10:24:28,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 614. [2024-12-02 10:24:28,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 569 states have (on average 1.4094903339191565) internal successors, (802), 571 states have internal predecessors, (802), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 10:24:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 868 transitions. [2024-12-02 10:24:28,680 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 868 transitions. Word has length 121 [2024-12-02 10:24:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:28,681 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 868 transitions. [2024-12-02 10:24:28,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 868 transitions. [2024-12-02 10:24:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:24:28,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:28,682 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:28,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-12-02 10:24:28,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:28,882 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:28,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:28,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1026137293, now seen corresponding path program 1 times [2024-12-02 10:24:28,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:28,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568617280] [2024-12-02 10:24:28,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:28,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:28,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:28,885 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:28,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-12-02 10:24:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:29,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:24:29,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:29,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 33 [2024-12-02 10:24:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-12-02 10:24:29,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:29,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:29,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568617280] [2024-12-02 10:24:29,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568617280] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:29,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:24:29,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-12-02 10:24:29,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635645449] [2024-12-02 10:24:29,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:29,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:24:29,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:29,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:24:29,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:24:29,859 INFO L87 Difference]: Start difference. First operand 614 states and 868 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:30,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:30,034 INFO L93 Difference]: Finished difference Result 1144 states and 1595 transitions. [2024-12-02 10:24:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:24:30,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 10:24:30,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:30,036 INFO L225 Difference]: With dead ends: 1144 [2024-12-02 10:24:30,036 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 10:24:30,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:24:30,037 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 61 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:30,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 729 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:24:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 10:24:30,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 396. [2024-12-02 10:24:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 365 states have (on average 1.4136986301369863) internal successors, (516), 365 states have internal predecessors, (516), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 10:24:30,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 562 transitions. [2024-12-02 10:24:30,060 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 562 transitions. Word has length 123 [2024-12-02 10:24:30,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:30,061 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 562 transitions. [2024-12-02 10:24:30,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:30,061 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 562 transitions. [2024-12-02 10:24:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:24:30,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:30,062 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:30,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-12-02 10:24:30,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:30,263 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:30,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:30,264 INFO L85 PathProgramCache]: Analyzing trace with hash 584300748, now seen corresponding path program 1 times [2024-12-02 10:24:30,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:30,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682710146] [2024-12-02 10:24:30,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:30,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:30,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:30,266 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:30,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-02 10:24:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:30,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:24:30,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:30,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:30,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682710146] [2024-12-02 10:24:30,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682710146] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:30,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:30,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:24:30,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790290647] [2024-12-02 10:24:30,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:30,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:30,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:30,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:30,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:30,564 INFO L87 Difference]: Start difference. First operand 396 states and 562 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:30,607 INFO L93 Difference]: Finished difference Result 402 states and 568 transitions. [2024-12-02 10:24:30,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:30,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 10:24:30,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:30,608 INFO L225 Difference]: With dead ends: 402 [2024-12-02 10:24:30,608 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 10:24:30,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:30,609 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:30,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 900 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:24:30,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 10:24:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-12-02 10:24:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 369 states have (on average 1.4092140921409213) internal successors, (520), 369 states have internal predecessors, (520), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 10:24:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 566 transitions. [2024-12-02 10:24:30,631 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 566 transitions. Word has length 123 [2024-12-02 10:24:30,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:30,631 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 566 transitions. [2024-12-02 10:24:30,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:30,631 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 566 transitions. [2024-12-02 10:24:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:24:30,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:30,633 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:30,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-12-02 10:24:30,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:30,834 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:30,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:30,834 INFO L85 PathProgramCache]: Analyzing trace with hash 832806030, now seen corresponding path program 1 times [2024-12-02 10:24:30,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:30,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303923975] [2024-12-02 10:24:30,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:30,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:30,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:30,836 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:30,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-12-02 10:24:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:31,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:24:31,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:31,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:31,310 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:31,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 54 [2024-12-02 10:24:31,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:31,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 42 [2024-12-02 10:24:31,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2024-12-02 10:24:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:31,423 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:31,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:31,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303923975] [2024-12-02 10:24:31,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303923975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:31,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:31,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:31,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007034843] [2024-12-02 10:24:31,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:31,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:31,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:31,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:31,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:31,424 INFO L87 Difference]: Start difference. First operand 400 states and 566 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:32,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:32,706 INFO L93 Difference]: Finished difference Result 1097 states and 1526 transitions. [2024-12-02 10:24:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 10:24:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:32,710 INFO L225 Difference]: With dead ends: 1097 [2024-12-02 10:24:32,710 INFO L226 Difference]: Without dead ends: 700 [2024-12-02 10:24:32,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:32,710 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 400 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:32,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 947 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:24:32,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-12-02 10:24:32,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 692. [2024-12-02 10:24:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 617 states have (on average 1.3776337115072934) internal successors, (850), 621 states have internal predecessors, (850), 53 states have call successors, (53), 21 states have call predecessors, (53), 21 states have return successors, (53), 49 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:24:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 956 transitions. [2024-12-02 10:24:32,776 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 956 transitions. Word has length 123 [2024-12-02 10:24:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:32,776 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 956 transitions. [2024-12-02 10:24:32,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 956 transitions. [2024-12-02 10:24:32,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:24:32,778 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:32,778 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:32,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-12-02 10:24:32,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:32,978 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:32,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:32,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1051660748, now seen corresponding path program 1 times [2024-12-02 10:24:32,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:32,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413024890] [2024-12-02 10:24:32,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:32,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:32,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:32,980 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:32,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-12-02 10:24:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:33,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:24:33,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:33,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:33,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 40 [2024-12-02 10:24:33,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2024-12-02 10:24:33,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 23 [2024-12-02 10:24:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:33,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:33,527 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:33,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413024890] [2024-12-02 10:24:33,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413024890] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:33,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:33,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645746404] [2024-12-02 10:24:33,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:33,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:33,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:33,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:33,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:33,529 INFO L87 Difference]: Start difference. First operand 692 states and 956 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:35,756 INFO L93 Difference]: Finished difference Result 1595 states and 2199 transitions. [2024-12-02 10:24:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:35,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 10:24:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:35,759 INFO L225 Difference]: With dead ends: 1595 [2024-12-02 10:24:35,759 INFO L226 Difference]: Without dead ends: 906 [2024-12-02 10:24:35,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:35,760 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 298 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:35,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1189 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 10:24:35,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-12-02 10:24:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 800. [2024-12-02 10:24:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 725 states have (on average 1.3944827586206896) internal successors, (1011), 729 states have internal predecessors, (1011), 53 states have call successors, (53), 21 states have call predecessors, (53), 21 states have return successors, (53), 49 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:24:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1117 transitions. [2024-12-02 10:24:35,823 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1117 transitions. Word has length 123 [2024-12-02 10:24:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:35,824 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1117 transitions. [2024-12-02 10:24:35,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1117 transitions. [2024-12-02 10:24:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:24:35,825 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:35,825 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:35,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-02 10:24:36,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:36,025 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:36,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:36,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1795626592, now seen corresponding path program 1 times [2024-12-02 10:24:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:36,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074116097] [2024-12-02 10:24:36,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:36,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:36,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:36,027 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:36,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-12-02 10:24:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:36,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:24:36,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:36,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:36,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:36,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 53 [2024-12-02 10:24:36,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:36,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 41 [2024-12-02 10:24:36,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2024-12-02 10:24:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:36,606 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:36,606 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:36,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074116097] [2024-12-02 10:24:36,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074116097] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:36,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:36,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:36,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69596907] [2024-12-02 10:24:36,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:36,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:36,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:36,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:36,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:36,607 INFO L87 Difference]: Start difference. First operand 800 states and 1117 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:38,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:38,299 INFO L93 Difference]: Finished difference Result 1807 states and 2512 transitions. [2024-12-02 10:24:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:38,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 10:24:38,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:38,302 INFO L225 Difference]: With dead ends: 1807 [2024-12-02 10:24:38,302 INFO L226 Difference]: Without dead ends: 1010 [2024-12-02 10:24:38,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:38,304 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 294 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:38,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1276 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 10:24:38,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2024-12-02 10:24:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 825. [2024-12-02 10:24:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 774 states have (on average 1.4276485788113695) internal successors, (1105), 776 states have internal predecessors, (1105), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 10:24:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1173 transitions. [2024-12-02 10:24:38,358 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1173 transitions. Word has length 123 [2024-12-02 10:24:38,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:38,359 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1173 transitions. [2024-12-02 10:24:38,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:38,359 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1173 transitions. [2024-12-02 10:24:38,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:24:38,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:38,360 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:38,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-12-02 10:24:38,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:38,561 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:38,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:38,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1681692254, now seen corresponding path program 1 times [2024-12-02 10:24:38,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:38,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480551519] [2024-12-02 10:24:38,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:38,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:38,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:38,563 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:38,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-12-02 10:24:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:38,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:24:38,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:38,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:39,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2024-12-02 10:24:39,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:24:39,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2024-12-02 10:24:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:39,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:39,137 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:39,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480551519] [2024-12-02 10:24:39,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480551519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:39,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:39,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:39,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888875436] [2024-12-02 10:24:39,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:39,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:39,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:39,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:39,138 INFO L87 Difference]: Start difference. First operand 825 states and 1173 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:41,638 INFO L93 Difference]: Finished difference Result 2038 states and 2852 transitions. [2024-12-02 10:24:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:41,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 10:24:41,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:41,641 INFO L225 Difference]: With dead ends: 2038 [2024-12-02 10:24:41,641 INFO L226 Difference]: Without dead ends: 1216 [2024-12-02 10:24:41,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:41,642 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 304 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:41,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1328 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 10:24:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-12-02 10:24:41,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 933. [2024-12-02 10:24:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 882 states have (on average 1.435374149659864) internal successors, (1266), 884 states have internal predecessors, (1266), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 10:24:41,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1334 transitions. [2024-12-02 10:24:41,695 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1334 transitions. Word has length 123 [2024-12-02 10:24:41,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:41,695 INFO L471 AbstractCegarLoop]: Abstraction has 933 states and 1334 transitions. [2024-12-02 10:24:41,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1334 transitions. [2024-12-02 10:24:41,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:41,696 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:41,696 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:41,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-12-02 10:24:41,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:41,897 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:41,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1623524199, now seen corresponding path program 1 times [2024-12-02 10:24:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:41,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713101390] [2024-12-02 10:24:41,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:41,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:41,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:41,899 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:41,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-12-02 10:24:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:42,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:24:42,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:42,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:42,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 10:24:42,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-12-02 10:24:42,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:42,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 15 [2024-12-02 10:24:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 10:24:42,428 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:24:42,650 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:42,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713101390] [2024-12-02 10:24:42,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713101390] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:24:42,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:24:42,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-02 10:24:42,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046822481] [2024-12-02 10:24:42,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:24:42,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:24:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:42,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:24:42,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:42,651 INFO L87 Difference]: Start difference. First operand 933 states and 1334 transitions. Second operand has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:24:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:43,448 INFO L93 Difference]: Finished difference Result 2088 states and 2954 transitions. [2024-12-02 10:24:43,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 10:24:43,449 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) Word has length 125 [2024-12-02 10:24:43,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:43,451 INFO L225 Difference]: With dead ends: 2088 [2024-12-02 10:24:43,451 INFO L226 Difference]: Without dead ends: 1158 [2024-12-02 10:24:43,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2024-12-02 10:24:43,452 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 697 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:43,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1102 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:24:43,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-12-02 10:24:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 933. [2024-12-02 10:24:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 882 states have (on average 1.4263038548752835) internal successors, (1258), 884 states have internal predecessors, (1258), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 10:24:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1326 transitions. [2024-12-02 10:24:43,504 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1326 transitions. Word has length 125 [2024-12-02 10:24:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:43,504 INFO L471 AbstractCegarLoop]: Abstraction has 933 states and 1326 transitions. [2024-12-02 10:24:43,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.636363636363637) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:24:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1326 transitions. [2024-12-02 10:24:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:43,505 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:43,505 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:43,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-12-02 10:24:43,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:43,705 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:43,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:43,706 INFO L85 PathProgramCache]: Analyzing trace with hash 35176297, now seen corresponding path program 1 times [2024-12-02 10:24:43,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:43,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878114136] [2024-12-02 10:24:43,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:43,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:43,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:43,708 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:43,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-12-02 10:24:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:43,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:24:43,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:43,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:43,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:43,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878114136] [2024-12-02 10:24:43,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878114136] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:43,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:43,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:24:43,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009399839] [2024-12-02 10:24:43,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:43,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:24:43,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:43,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:24:43,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:24:43,963 INFO L87 Difference]: Start difference. First operand 933 states and 1326 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:44,261 INFO L93 Difference]: Finished difference Result 2481 states and 3512 transitions. [2024-12-02 10:24:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:24:44,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 10:24:44,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:44,264 INFO L225 Difference]: With dead ends: 2481 [2024-12-02 10:24:44,264 INFO L226 Difference]: Without dead ends: 1551 [2024-12-02 10:24:44,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:44,265 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 140 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:44,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 928 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:24:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-12-02 10:24:44,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 981. [2024-12-02 10:24:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 930 states have (on average 1.4172043010752688) internal successors, (1318), 932 states have internal predecessors, (1318), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 10:24:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1386 transitions. [2024-12-02 10:24:44,319 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1386 transitions. Word has length 125 [2024-12-02 10:24:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:44,319 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1386 transitions. [2024-12-02 10:24:44,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1386 transitions. [2024-12-02 10:24:44,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:44,321 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:44,321 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:44,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-12-02 10:24:44,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:44,521 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:44,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:44,522 INFO L85 PathProgramCache]: Analyzing trace with hash -551629717, now seen corresponding path program 1 times [2024-12-02 10:24:44,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:44,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124045111] [2024-12-02 10:24:44,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:44,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:44,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:44,523 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:44,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-12-02 10:24:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:44,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:24:44,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:44,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:24:45,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-12-02 10:24:45,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:45,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 54 [2024-12-02 10:24:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 10:24:45,742 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:45,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124045111] [2024-12-02 10:24:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124045111] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:45,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:45,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:45,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246153333] [2024-12-02 10:24:45,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:45,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:24:45,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:45,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:24:45,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:45,744 INFO L87 Difference]: Start difference. First operand 981 states and 1386 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:46,447 INFO L93 Difference]: Finished difference Result 2871 states and 4066 transitions. [2024-12-02 10:24:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:24:46,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-12-02 10:24:46,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:46,452 INFO L225 Difference]: With dead ends: 2871 [2024-12-02 10:24:46,452 INFO L226 Difference]: Without dead ends: 1893 [2024-12-02 10:24:46,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:24:46,453 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 291 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:46,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1067 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:24:46,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2024-12-02 10:24:46,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1128. [2024-12-02 10:24:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1056 states have (on average 1.4043560606060606) internal successors, (1483), 1059 states have internal predecessors, (1483), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:24:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1579 transitions. [2024-12-02 10:24:46,523 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1579 transitions. Word has length 125 [2024-12-02 10:24:46,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:46,524 INFO L471 AbstractCegarLoop]: Abstraction has 1128 states and 1579 transitions. [2024-12-02 10:24:46,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1579 transitions. [2024-12-02 10:24:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:46,525 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:46,525 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:46,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 10:24:46,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:46,725 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:46,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:46,725 INFO L85 PathProgramCache]: Analyzing trace with hash 303655785, now seen corresponding path program 1 times [2024-12-02 10:24:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:46,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462874114] [2024-12-02 10:24:46,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:46,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:46,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:46,727 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:46,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-12-02 10:24:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:47,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 10:24:47,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:47,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:24:47,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2024-12-02 10:24:47,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-12-02 10:24:47,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2024-12-02 10:24:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:24:47,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:47,394 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:47,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462874114] [2024-12-02 10:24:47,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462874114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:47,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:47,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:47,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914288017] [2024-12-02 10:24:47,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:47,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:47,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:47,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:47,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:47,395 INFO L87 Difference]: Start difference. First operand 1128 states and 1579 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:49,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:49,230 INFO L93 Difference]: Finished difference Result 2772 states and 3824 transitions. [2024-12-02 10:24:49,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:49,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-12-02 10:24:49,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:49,234 INFO L225 Difference]: With dead ends: 2772 [2024-12-02 10:24:49,234 INFO L226 Difference]: Without dead ends: 1647 [2024-12-02 10:24:49,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:24:49,235 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 771 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:49,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 688 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 10:24:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2024-12-02 10:24:49,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1148. [2024-12-02 10:24:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1076 states have (on average 1.407992565055762) internal successors, (1515), 1079 states have internal predecessors, (1515), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:24:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1611 transitions. [2024-12-02 10:24:49,337 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1611 transitions. Word has length 125 [2024-12-02 10:24:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:49,337 INFO L471 AbstractCegarLoop]: Abstraction has 1148 states and 1611 transitions. [2024-12-02 10:24:49,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1611 transitions. [2024-12-02 10:24:49,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:49,338 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:49,338 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:49,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-12-02 10:24:49,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:49,539 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:49,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:49,539 INFO L85 PathProgramCache]: Analyzing trace with hash 169642279, now seen corresponding path program 1 times [2024-12-02 10:24:49,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:49,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838792659] [2024-12-02 10:24:49,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:49,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:49,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:49,541 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:49,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-12-02 10:24:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:49,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 10:24:49,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:49,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:24:49,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:49,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:24:50,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2024-12-02 10:24:50,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:24:50,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:50,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 42 [2024-12-02 10:24:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:50,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:50,598 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838792659] [2024-12-02 10:24:50,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838792659] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:50,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:50,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:24:50,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022246034] [2024-12-02 10:24:50,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:50,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:24:50,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:50,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:24:50,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:24:50,599 INFO L87 Difference]: Start difference. First operand 1148 states and 1611 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:54,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:54,091 INFO L93 Difference]: Finished difference Result 2784 states and 3809 transitions. [2024-12-02 10:24:54,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:24:54,092 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 10:24:54,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:54,095 INFO L225 Difference]: With dead ends: 2784 [2024-12-02 10:24:54,095 INFO L226 Difference]: Without dead ends: 1639 [2024-12-02 10:24:54,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:24:54,096 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 524 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:54,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1996 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 10:24:54,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-12-02 10:24:54,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1139. [2024-12-02 10:24:54,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1067 states have (on average 1.4104967197750702) internal successors, (1505), 1070 states have internal predecessors, (1505), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:24:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1601 transitions. [2024-12-02 10:24:54,168 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1601 transitions. Word has length 125 [2024-12-02 10:24:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:54,169 INFO L471 AbstractCegarLoop]: Abstraction has 1139 states and 1601 transitions. [2024-12-02 10:24:54,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:54,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1601 transitions. [2024-12-02 10:24:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:54,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:54,170 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:54,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-02 10:24:54,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:54,370 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:54,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:54,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1082942919, now seen corresponding path program 1 times [2024-12-02 10:24:54,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:54,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039753213] [2024-12-02 10:24:54,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:54,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:54,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:54,372 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:54,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 10:24:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:54,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:24:54,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:54,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:24:54,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 10:24:55,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:55,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-12-02 10:24:55,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:55,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 50 [2024-12-02 10:24:55,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:55,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 38 [2024-12-02 10:24:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 10:24:55,433 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:55,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:55,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039753213] [2024-12-02 10:24:55,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039753213] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:55,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:24:55,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 20 [2024-12-02 10:24:55,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45455377] [2024-12-02 10:24:55,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:55,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:24:55,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:55,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:24:55,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:24:55,807 INFO L87 Difference]: Start difference. First operand 1139 states and 1601 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:56,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:56,237 INFO L93 Difference]: Finished difference Result 2326 states and 3264 transitions. [2024-12-02 10:24:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:24:56,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 10:24:56,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:56,240 INFO L225 Difference]: With dead ends: 2326 [2024-12-02 10:24:56,240 INFO L226 Difference]: Without dead ends: 1190 [2024-12-02 10:24:56,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:24:56,241 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 106 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:56,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1978 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:24:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2024-12-02 10:24:56,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1142. [2024-12-02 10:24:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1070 states have (on average 1.4102803738317757) internal successors, (1509), 1073 states have internal predecessors, (1509), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:24:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1605 transitions. [2024-12-02 10:24:56,316 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1605 transitions. Word has length 125 [2024-12-02 10:24:56,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:56,316 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1605 transitions. [2024-12-02 10:24:56,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:24:56,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1605 transitions. [2024-12-02 10:24:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:56,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:56,317 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:56,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 10:24:56,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:56,518 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:56,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:56,518 INFO L85 PathProgramCache]: Analyzing trace with hash 402884549, now seen corresponding path program 1 times [2024-12-02 10:24:56,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:56,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182996140] [2024-12-02 10:24:56,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:56,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:56,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:56,520 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:56,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 10:24:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:56,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 10:24:56,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:56,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:24:56,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2024-12-02 10:24:56,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:24:56,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 64 [2024-12-02 10:24:56,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 10:24:57,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:57,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 51 [2024-12-02 10:24:57,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:57,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 42 [2024-12-02 10:24:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 10:24:57,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:24:57,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:57,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182996140] [2024-12-02 10:24:57,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182996140] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:24:57,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:24:57,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2024-12-02 10:24:57,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708763329] [2024-12-02 10:24:57,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:24:57,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:24:57,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:57,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:24:57,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:24:57,493 INFO L87 Difference]: Start difference. First operand 1142 states and 1605 transitions. Second operand has 12 states, 10 states have (on average 8.4) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:24:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:58,153 INFO L93 Difference]: Finished difference Result 2449 states and 3433 transitions. [2024-12-02 10:24:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 10:24:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.4) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) Word has length 125 [2024-12-02 10:24:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:58,156 INFO L225 Difference]: With dead ends: 2449 [2024-12-02 10:24:58,156 INFO L226 Difference]: Without dead ends: 1310 [2024-12-02 10:24:58,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:24:58,157 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 418 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:58,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 887 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:24:58,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2024-12-02 10:24:58,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1140. [2024-12-02 10:24:58,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1068 states have (on average 1.408239700374532) internal successors, (1504), 1071 states have internal predecessors, (1504), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:24:58,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1600 transitions. [2024-12-02 10:24:58,227 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1600 transitions. Word has length 125 [2024-12-02 10:24:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:58,228 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1600 transitions. [2024-12-02 10:24:58,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.4) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:24:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1600 transitions. [2024-12-02 10:24:58,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:24:58,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:58,229 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:58,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-02 10:24:58,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:58,429 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:58,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:58,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1524087035, now seen corresponding path program 1 times [2024-12-02 10:24:58,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:24:58,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55488859] [2024-12-02 10:24:58,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:24:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:24:58,431 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:24:58,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-12-02 10:24:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:58,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:24:58,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:58,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:24:58,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 10:24:59,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:59,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-12-02 10:24:59,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:24:59,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 29 [2024-12-02 10:24:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 10:24:59,222 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:24:59,457 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:24:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55488859] [2024-12-02 10:24:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55488859] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:24:59,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:24:59,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2024-12-02 10:24:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187695494] [2024-12-02 10:24:59,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:24:59,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:24:59,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:24:59,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:24:59,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:24:59,458 INFO L87 Difference]: Start difference. First operand 1140 states and 1600 transitions. Second operand has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 5 states have call successors, (27) [2024-12-02 10:25:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:00,546 INFO L93 Difference]: Finished difference Result 2632 states and 3617 transitions. [2024-12-02 10:25:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 10:25:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 5 states have call successors, (27) Word has length 125 [2024-12-02 10:25:00,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:00,552 INFO L225 Difference]: With dead ends: 2632 [2024-12-02 10:25:00,552 INFO L226 Difference]: Without dead ends: 1495 [2024-12-02 10:25:00,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:25:00,554 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 825 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:00,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1775 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:25:00,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-12-02 10:25:00,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1140. [2024-12-02 10:25:00,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1068 states have (on average 1.402621722846442) internal successors, (1498), 1071 states have internal predecessors, (1498), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1594 transitions. [2024-12-02 10:25:00,680 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1594 transitions. Word has length 125 [2024-12-02 10:25:00,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:00,680 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1594 transitions. [2024-12-02 10:25:00,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 5 states have call successors, (27) [2024-12-02 10:25:00,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1594 transitions. [2024-12-02 10:25:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:25:00,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:00,682 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:00,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-12-02 10:25:00,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:00,882 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:00,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 706438585, now seen corresponding path program 1 times [2024-12-02 10:25:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:00,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801413238] [2024-12-02 10:25:00,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:00,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:00,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:00,884 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:00,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-02 10:25:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:01,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:25:01,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:01,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:25:01,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2024-12-02 10:25:01,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-12-02 10:25:01,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:25:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:01,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:01,296 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:01,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801413238] [2024-12-02 10:25:01,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801413238] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:01,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:01,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:25:01,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241565241] [2024-12-02 10:25:01,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:01,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:25:01,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:01,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:25:01,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:25:01,297 INFO L87 Difference]: Start difference. First operand 1140 states and 1594 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:02,438 INFO L93 Difference]: Finished difference Result 2526 states and 3487 transitions. [2024-12-02 10:25:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:25:02,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 10:25:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:02,444 INFO L225 Difference]: With dead ends: 2526 [2024-12-02 10:25:02,444 INFO L226 Difference]: Without dead ends: 1389 [2024-12-02 10:25:02,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:25:02,446 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 146 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:02,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 674 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:25:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2024-12-02 10:25:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1026. [2024-12-02 10:25:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 954 states have (on average 1.3962264150943395) internal successors, (1332), 957 states have internal predecessors, (1332), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:02,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1428 transitions. [2024-12-02 10:25:02,535 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1428 transitions. Word has length 125 [2024-12-02 10:25:02,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:02,535 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1428 transitions. [2024-12-02 10:25:02,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1428 transitions. [2024-12-02 10:25:02,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:25:02,536 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:02,536 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:02,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-02 10:25:02,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:02,736 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:02,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:02,737 INFO L85 PathProgramCache]: Analyzing trace with hash 544728423, now seen corresponding path program 1 times [2024-12-02 10:25:02,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:02,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019948123] [2024-12-02 10:25:02,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:02,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:02,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:02,739 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:02,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-12-02 10:25:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:03,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:25:03,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:03,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:25:03,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-12-02 10:25:03,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2024-12-02 10:25:03,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:25:03,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:03,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 35 [2024-12-02 10:25:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:03,577 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:03,577 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:03,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019948123] [2024-12-02 10:25:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019948123] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:03,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:03,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:25:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361767488] [2024-12-02 10:25:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:03,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:25:03,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:03,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:25:03,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:25:03,578 INFO L87 Difference]: Start difference. First operand 1026 states and 1428 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:06,460 INFO L93 Difference]: Finished difference Result 2335 states and 3195 transitions. [2024-12-02 10:25:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:25:06,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 10:25:06,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:06,465 INFO L225 Difference]: With dead ends: 2335 [2024-12-02 10:25:06,465 INFO L226 Difference]: Without dead ends: 1312 [2024-12-02 10:25:06,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:25:06,467 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 263 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:06,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 2112 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 10:25:06,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-12-02 10:25:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 959. [2024-12-02 10:25:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 887 states have (on average 1.391206313416009) internal successors, (1234), 890 states have internal predecessors, (1234), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1330 transitions. [2024-12-02 10:25:06,556 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1330 transitions. Word has length 125 [2024-12-02 10:25:06,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:06,556 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1330 transitions. [2024-12-02 10:25:06,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:06,556 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1330 transitions. [2024-12-02 10:25:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:25:06,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:06,557 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:06,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-12-02 10:25:06,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:06,758 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:06,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1608360919, now seen corresponding path program 1 times [2024-12-02 10:25:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:06,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558973376] [2024-12-02 10:25:06,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:06,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:06,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:06,760 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:06,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-12-02 10:25:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:06,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:25:07,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 10:25:07,010 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:07,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:07,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558973376] [2024-12-02 10:25:07,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558973376] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:07,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:07,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:25:07,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402412586] [2024-12-02 10:25:07,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:07,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:25:07,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:07,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:25:07,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:25:07,012 INFO L87 Difference]: Start difference. First operand 959 states and 1330 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:07,111 INFO L93 Difference]: Finished difference Result 1915 states and 2657 transitions. [2024-12-02 10:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:25:07,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-12-02 10:25:07,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:07,113 INFO L225 Difference]: With dead ends: 1915 [2024-12-02 10:25:07,113 INFO L226 Difference]: Without dead ends: 959 [2024-12-02 10:25:07,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:25:07,115 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:07,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 541 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:25:07,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-12-02 10:25:07,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2024-12-02 10:25:07,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 887 states have (on average 1.3889515219842166) internal successors, (1232), 890 states have internal predecessors, (1232), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1328 transitions. [2024-12-02 10:25:07,203 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1328 transitions. Word has length 125 [2024-12-02 10:25:07,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:07,203 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1328 transitions. [2024-12-02 10:25:07,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:07,203 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1328 transitions. [2024-12-02 10:25:07,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 10:25:07,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:07,204 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:07,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-12-02 10:25:07,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:07,405 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:07,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:07,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1986579601, now seen corresponding path program 1 times [2024-12-02 10:25:07,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:07,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661712570] [2024-12-02 10:25:07,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:07,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:07,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:07,407 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:07,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-12-02 10:25:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:07,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:25:07,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:07,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:25:07,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 10:25:07,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-12-02 10:25:08,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:08,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 35 [2024-12-02 10:25:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 10:25:08,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:08,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:08,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661712570] [2024-12-02 10:25:08,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661712570] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:08,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:25:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2024-12-02 10:25:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004579781] [2024-12-02 10:25:08,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:08,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:25:08,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:08,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:25:08,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:25:08,272 INFO L87 Difference]: Start difference. First operand 959 states and 1328 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:08,638 INFO L93 Difference]: Finished difference Result 1233 states and 1711 transitions. [2024-12-02 10:25:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:25:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 126 [2024-12-02 10:25:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:08,641 INFO L225 Difference]: With dead ends: 1233 [2024-12-02 10:25:08,641 INFO L226 Difference]: Without dead ends: 1231 [2024-12-02 10:25:08,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:25:08,641 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 99 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:08,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1222 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-12-02 10:25:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1199. [2024-12-02 10:25:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 1127 states have (on average 1.4001774622892635) internal successors, (1578), 1130 states have internal predecessors, (1578), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1674 transitions. [2024-12-02 10:25:08,723 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1674 transitions. Word has length 126 [2024-12-02 10:25:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:08,723 INFO L471 AbstractCegarLoop]: Abstraction has 1199 states and 1674 transitions. [2024-12-02 10:25:08,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:08,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1674 transitions. [2024-12-02 10:25:08,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 10:25:08,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:08,724 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:08,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-12-02 10:25:08,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:08,924 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:08,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:08,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1245774105, now seen corresponding path program 1 times [2024-12-02 10:25:08,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:08,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554096555] [2024-12-02 10:25:08,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:08,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:08,927 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:08,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-12-02 10:25:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:09,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:25:09,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 10:25:09,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:09,220 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:09,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554096555] [2024-12-02 10:25:09,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554096555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:09,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:09,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:25:09,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85353726] [2024-12-02 10:25:09,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:09,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:25:09,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:09,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:25:09,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:25:09,221 INFO L87 Difference]: Start difference. First operand 1199 states and 1674 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:25:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:09,429 INFO L93 Difference]: Finished difference Result 2419 states and 3371 transitions. [2024-12-02 10:25:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:25:09,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2024-12-02 10:25:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:09,433 INFO L225 Difference]: With dead ends: 2419 [2024-12-02 10:25:09,433 INFO L226 Difference]: Without dead ends: 1219 [2024-12-02 10:25:09,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:25:09,435 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 1 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:09,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 802 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-12-02 10:25:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1199. [2024-12-02 10:25:09,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 1127 states have (on average 1.3984028393966281) internal successors, (1576), 1130 states have internal predecessors, (1576), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1672 transitions. [2024-12-02 10:25:09,539 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1672 transitions. Word has length 127 [2024-12-02 10:25:09,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:09,539 INFO L471 AbstractCegarLoop]: Abstraction has 1199 states and 1672 transitions. [2024-12-02 10:25:09,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:25:09,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1672 transitions. [2024-12-02 10:25:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 10:25:09,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:09,541 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:09,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-12-02 10:25:09,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:09,741 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:09,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:09,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1697807973, now seen corresponding path program 1 times [2024-12-02 10:25:09,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:09,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399819534] [2024-12-02 10:25:09,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:09,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:09,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:09,744 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:09,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-12-02 10:25:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:10,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:25:10,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:10,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:25:10,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:25:10,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:25:10,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:25:10,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2024-12-02 10:25:10,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:10,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 37 [2024-12-02 10:25:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:10,353 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:10,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:10,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399819534] [2024-12-02 10:25:10,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399819534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:10,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:10,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:25:10,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057652967] [2024-12-02 10:25:10,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:10,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:25:10,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:10,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:25:10,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:25:10,355 INFO L87 Difference]: Start difference. First operand 1199 states and 1672 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:13,127 INFO L93 Difference]: Finished difference Result 3311 states and 4467 transitions. [2024-12-02 10:25:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:25:13,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 127 [2024-12-02 10:25:13,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:13,131 INFO L225 Difference]: With dead ends: 3311 [2024-12-02 10:25:13,131 INFO L226 Difference]: Without dead ends: 2115 [2024-12-02 10:25:13,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:25:13,132 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 537 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:13,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 2077 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 10:25:13,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2024-12-02 10:25:13,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1294. [2024-12-02 10:25:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1222 states have (on average 1.397708674304419) internal successors, (1708), 1225 states have internal predecessors, (1708), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1804 transitions. [2024-12-02 10:25:13,252 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1804 transitions. Word has length 127 [2024-12-02 10:25:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:13,253 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1804 transitions. [2024-12-02 10:25:13,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1804 transitions. [2024-12-02 10:25:13,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 10:25:13,254 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:13,254 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:13,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-12-02 10:25:13,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:13,454 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:13,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1916662691, now seen corresponding path program 1 times [2024-12-02 10:25:13,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:13,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376741546] [2024-12-02 10:25:13,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:13,456 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:13,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-12-02 10:25:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:13,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:25:13,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:13,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:25:13,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:25:13,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 10:25:13,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:13,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 10:25:13,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:13,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 34 [2024-12-02 10:25:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 10:25:13,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:13,949 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:13,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376741546] [2024-12-02 10:25:13,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376741546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:13,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:13,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:25:13,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998428559] [2024-12-02 10:25:13,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:13,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:25:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:13,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:25:13,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:25:13,950 INFO L87 Difference]: Start difference. First operand 1294 states and 1804 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:14,814 INFO L93 Difference]: Finished difference Result 3210 states and 4448 transitions. [2024-12-02 10:25:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:25:14,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-12-02 10:25:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:14,818 INFO L225 Difference]: With dead ends: 3210 [2024-12-02 10:25:14,818 INFO L226 Difference]: Without dead ends: 1919 [2024-12-02 10:25:14,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:25:14,819 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 261 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:14,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1075 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:25:14,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2024-12-02 10:25:14,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1354. [2024-12-02 10:25:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1282 states have (on average 1.4032761310452417) internal successors, (1799), 1285 states have internal predecessors, (1799), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1895 transitions. [2024-12-02 10:25:14,926 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1895 transitions. Word has length 127 [2024-12-02 10:25:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:14,926 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1895 transitions. [2024-12-02 10:25:14,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1895 transitions. [2024-12-02 10:25:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 10:25:14,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:14,927 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:14,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-12-02 10:25:15,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:15,128 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:15,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1422346700, now seen corresponding path program 1 times [2024-12-02 10:25:15,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:15,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137062482] [2024-12-02 10:25:15,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:15,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:15,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:15,130 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:15,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-12-02 10:25:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:15,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:25:15,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:15,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:25:15,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 10:25:15,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 10:25:16,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:16,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 34 [2024-12-02 10:25:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-12-02 10:25:16,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:25:17,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:17,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137062482] [2024-12-02 10:25:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137062482] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:17,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:25:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2024-12-02 10:25:17,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108446479] [2024-12-02 10:25:17,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:17,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 10:25:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:17,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 10:25:17,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:25:17,006 INFO L87 Difference]: Start difference. First operand 1354 states and 1895 transitions. Second operand has 26 states, 24 states have (on average 5.166666666666667) internal successors, (124), 26 states have internal predecessors, (124), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2024-12-02 10:25:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:18,615 INFO L93 Difference]: Finished difference Result 1432 states and 1979 transitions. [2024-12-02 10:25:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 10:25:18,615 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.166666666666667) internal successors, (124), 26 states have internal predecessors, (124), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) Word has length 128 [2024-12-02 10:25:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:18,618 INFO L225 Difference]: With dead ends: 1432 [2024-12-02 10:25:18,618 INFO L226 Difference]: Without dead ends: 1430 [2024-12-02 10:25:18,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=291, Invalid=1601, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 10:25:18,619 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 727 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:18,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 2209 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:25:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-12-02 10:25:18,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1358. [2024-12-02 10:25:18,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1286 states have (on average 1.4035769828926905) internal successors, (1805), 1289 states have internal predecessors, (1805), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1901 transitions. [2024-12-02 10:25:18,724 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1901 transitions. Word has length 128 [2024-12-02 10:25:18,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:18,724 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1901 transitions. [2024-12-02 10:25:18,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.166666666666667) internal successors, (124), 26 states have internal predecessors, (124), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2024-12-02 10:25:18,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1901 transitions. [2024-12-02 10:25:18,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 10:25:18,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:18,726 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:18,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-12-02 10:25:18,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:18,926 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:18,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:18,927 INFO L85 PathProgramCache]: Analyzing trace with hash 601607126, now seen corresponding path program 1 times [2024-12-02 10:25:18,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:18,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877264098] [2024-12-02 10:25:18,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:18,928 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:18,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-12-02 10:25:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:19,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 10:25:19,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:19,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:25:19,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 10:25:19,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 10:25:19,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:19,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 38 [2024-12-02 10:25:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-12-02 10:25:19,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:25:20,471 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:20,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877264098] [2024-12-02 10:25:20,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877264098] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:20,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:25:20,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2024-12-02 10:25:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685247298] [2024-12-02 10:25:20,471 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:20,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 10:25:20,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:20,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 10:25:20,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:25:20,472 INFO L87 Difference]: Start difference. First operand 1358 states and 1901 transitions. Second operand has 24 states, 22 states have (on average 5.636363636363637) internal successors, (124), 24 states have internal predecessors, (124), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2024-12-02 10:25:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:21,619 INFO L93 Difference]: Finished difference Result 1412 states and 1957 transitions. [2024-12-02 10:25:21,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 10:25:21,620 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 5.636363636363637) internal successors, (124), 24 states have internal predecessors, (124), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) Word has length 128 [2024-12-02 10:25:21,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:21,622 INFO L225 Difference]: With dead ends: 1412 [2024-12-02 10:25:21,622 INFO L226 Difference]: Without dead ends: 1410 [2024-12-02 10:25:21,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=1101, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 10:25:21,623 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 541 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:21,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1730 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:25:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-12-02 10:25:21,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1358. [2024-12-02 10:25:21,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1286 states have (on average 1.4035769828926905) internal successors, (1805), 1289 states have internal predecessors, (1805), 48 states have call successors, (48), 23 states have call predecessors, (48), 23 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:25:21,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1901 transitions. [2024-12-02 10:25:21,731 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1901 transitions. Word has length 128 [2024-12-02 10:25:21,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:21,731 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1901 transitions. [2024-12-02 10:25:21,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 5.636363636363637) internal successors, (124), 24 states have internal predecessors, (124), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2024-12-02 10:25:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1901 transitions. [2024-12-02 10:25:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:25:21,733 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:21,733 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-12-02 10:25:21,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:21,933 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:21,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1148160964, now seen corresponding path program 1 times [2024-12-02 10:25:21,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:21,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778920019] [2024-12-02 10:25:21,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:21,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:21,935 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:21,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-12-02 10:25:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:22,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:25:22,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:22,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:25:22,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 10:25:22,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 10:25:22,812 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:22,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2024-12-02 10:25:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-12-02 10:25:22,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:25:23,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:23,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778920019] [2024-12-02 10:25:23,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778920019] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:23,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:25:23,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-12-02 10:25:23,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066146833] [2024-12-02 10:25:23,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:23,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:25:23,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:23,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:25:23,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:25:23,085 INFO L87 Difference]: Start difference. First operand 1358 states and 1901 transitions. Second operand has 16 states, 14 states have (on average 7.857142857142857) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2024-12-02 10:25:24,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:24,444 INFO L93 Difference]: Finished difference Result 3028 states and 4196 transitions. [2024-12-02 10:25:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 10:25:24,445 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.857142857142857) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) Word has length 129 [2024-12-02 10:25:24,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:24,449 INFO L225 Difference]: With dead ends: 3028 [2024-12-02 10:25:24,449 INFO L226 Difference]: Without dead ends: 1673 [2024-12-02 10:25:24,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:25:24,451 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 419 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:24,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1144 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:25:24,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2024-12-02 10:25:24,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1483. [2024-12-02 10:25:24,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1371 states have (on average 1.3800145878920496) internal successors, (1892), 1377 states have internal predecessors, (1892), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:24,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2042 transitions. [2024-12-02 10:25:24,632 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2042 transitions. Word has length 129 [2024-12-02 10:25:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:24,632 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 2042 transitions. [2024-12-02 10:25:24,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.857142857142857) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2024-12-02 10:25:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2042 transitions. [2024-12-02 10:25:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 10:25:24,634 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:24,634 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:24,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-12-02 10:25:24,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:24,834 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:24,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:24,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1903659985, now seen corresponding path program 1 times [2024-12-02 10:25:24,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:24,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906519041] [2024-12-02 10:25:24,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:24,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:24,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:24,836 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:24,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-12-02 10:25:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:25,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 10:25:25,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:25,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:25:25,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 10:25:25,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 10:25:25,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:25,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 29 [2024-12-02 10:25:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 10:25:25,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:26,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:26,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906519041] [2024-12-02 10:25:26,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906519041] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:26,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:25:26,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 23 [2024-12-02 10:25:26,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944686120] [2024-12-02 10:25:26,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:26,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:25:26,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:26,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:25:26,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:25:26,137 INFO L87 Difference]: Start difference. First operand 1483 states and 2042 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:26,936 INFO L93 Difference]: Finished difference Result 1862 states and 2559 transitions. [2024-12-02 10:25:26,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:25:26,936 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-12-02 10:25:26,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:26,940 INFO L225 Difference]: With dead ends: 1862 [2024-12-02 10:25:26,940 INFO L226 Difference]: Without dead ends: 1860 [2024-12-02 10:25:26,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2024-12-02 10:25:26,941 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 101 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:26,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 2504 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:25:26,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2024-12-02 10:25:27,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1786. [2024-12-02 10:25:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1674 states have (on average 1.391278375149343) internal successors, (2329), 1680 states have internal predecessors, (2329), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2479 transitions. [2024-12-02 10:25:27,109 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2479 transitions. Word has length 130 [2024-12-02 10:25:27,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:27,109 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 2479 transitions. [2024-12-02 10:25:27,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2479 transitions. [2024-12-02 10:25:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 10:25:27,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:27,111 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:27,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-12-02 10:25:27,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:27,312 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:27,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1094313359, now seen corresponding path program 1 times [2024-12-02 10:25:27,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:27,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454080083] [2024-12-02 10:25:27,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:27,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:27,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:27,314 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:27,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-12-02 10:25:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:27,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:25:27,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:27,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 47 [2024-12-02 10:25:27,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 10:25:27,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:25:27,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:27,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 82 [2024-12-02 10:25:27,926 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 10:25:27,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2024-12-02 10:25:28,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:28,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 45 [2024-12-02 10:25:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 10:25:28,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:25:28,544 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:28,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454080083] [2024-12-02 10:25:28,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454080083] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:28,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:25:28,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2024-12-02 10:25:28,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172111624] [2024-12-02 10:25:28,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:28,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:25:28,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:28,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:25:28,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:25:28,546 INFO L87 Difference]: Start difference. First operand 1786 states and 2479 transitions. Second operand has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:25:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:29,662 INFO L93 Difference]: Finished difference Result 3818 states and 5253 transitions. [2024-12-02 10:25:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 10:25:29,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) Word has length 130 [2024-12-02 10:25:29,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:29,666 INFO L225 Difference]: With dead ends: 3818 [2024-12-02 10:25:29,666 INFO L226 Difference]: Without dead ends: 2161 [2024-12-02 10:25:29,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2024-12-02 10:25:29,668 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 846 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:29,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1068 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:25:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-12-02 10:25:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1612. [2024-12-02 10:25:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1500 states have (on average 1.386) internal successors, (2079), 1506 states have internal predecessors, (2079), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2229 transitions. [2024-12-02 10:25:29,851 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2229 transitions. Word has length 130 [2024-12-02 10:25:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:29,852 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2229 transitions. [2024-12-02 10:25:29,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:25:29,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2229 transitions. [2024-12-02 10:25:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 10:25:29,854 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:29,854 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:29,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-12-02 10:25:30,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:30,055 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:30,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash -468079277, now seen corresponding path program 1 times [2024-12-02 10:25:30,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:30,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633637465] [2024-12-02 10:25:30,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:30,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:30,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:30,058 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:30,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-12-02 10:25:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:30,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 10:25:30,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:30,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 47 [2024-12-02 10:25:30,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:30,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 25 [2024-12-02 10:25:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 10:25:30,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:25:30,833 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:30,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633637465] [2024-12-02 10:25:30,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633637465] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:30,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:25:30,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2024-12-02 10:25:30,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283588180] [2024-12-02 10:25:30,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:30,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:25:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:30,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:25:30,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:25:30,834 INFO L87 Difference]: Start difference. First operand 1612 states and 2229 transitions. Second operand has 12 states, 10 states have (on average 7.8) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:25:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:31,814 INFO L93 Difference]: Finished difference Result 3125 states and 4256 transitions. [2024-12-02 10:25:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 10:25:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) Word has length 130 [2024-12-02 10:25:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:31,818 INFO L225 Difference]: With dead ends: 3125 [2024-12-02 10:25:31,818 INFO L226 Difference]: Without dead ends: 1642 [2024-12-02 10:25:31,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2024-12-02 10:25:31,819 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 497 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:31,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1175 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:25:31,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-12-02 10:25:32,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1309. [2024-12-02 10:25:32,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 1197 states have (on average 1.363408521303258) internal successors, (1632), 1203 states have internal predecessors, (1632), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1782 transitions. [2024-12-02 10:25:32,017 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1782 transitions. Word has length 130 [2024-12-02 10:25:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:32,017 INFO L471 AbstractCegarLoop]: Abstraction has 1309 states and 1782 transitions. [2024-12-02 10:25:32,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:25:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1782 transitions. [2024-12-02 10:25:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:25:32,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:32,019 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:32,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-12-02 10:25:32,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:32,219 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:32,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:32,220 INFO L85 PathProgramCache]: Analyzing trace with hash 951611474, now seen corresponding path program 1 times [2024-12-02 10:25:32,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:32,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029460957] [2024-12-02 10:25:32,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:32,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:32,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:32,222 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:32,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-12-02 10:25:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:32,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:25:32,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:32,525 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:32,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:32,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029460957] [2024-12-02 10:25:32,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029460957] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:32,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:32,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:25:32,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10857523] [2024-12-02 10:25:32,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:32,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:25:32,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:32,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:25:32,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:25:32,527 INFO L87 Difference]: Start difference. First operand 1309 states and 1782 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:32,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:32,744 INFO L93 Difference]: Finished difference Result 2500 states and 3435 transitions. [2024-12-02 10:25:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:25:32,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-12-02 10:25:32,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:32,747 INFO L225 Difference]: With dead ends: 2500 [2024-12-02 10:25:32,747 INFO L226 Difference]: Without dead ends: 1320 [2024-12-02 10:25:32,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:25:32,748 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:32,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 358 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:25:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-12-02 10:25:32,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-12-02 10:25:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1208 states have (on average 1.3600993377483444) internal successors, (1643), 1214 states have internal predecessors, (1643), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1793 transitions. [2024-12-02 10:25:32,938 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1793 transitions. Word has length 131 [2024-12-02 10:25:32,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:32,939 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1793 transitions. [2024-12-02 10:25:32,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1793 transitions. [2024-12-02 10:25:32,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:25:32,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:32,940 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:32,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-12-02 10:25:33,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:33,140 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:33,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash -957101358, now seen corresponding path program 1 times [2024-12-02 10:25:33,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:33,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447365350] [2024-12-02 10:25:33,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:33,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:33,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:33,142 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:33,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-12-02 10:25:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:33,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:25:33,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:33,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:25:33,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:33,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 42 [2024-12-02 10:25:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:33,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:33,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:33,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447365350] [2024-12-02 10:25:33,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447365350] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:33,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:33,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:25:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464696414] [2024-12-02 10:25:33,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:33,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:25:33,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:33,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:25:33,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:25:33,726 INFO L87 Difference]: Start difference. First operand 1320 states and 1793 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:35,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:35,882 INFO L93 Difference]: Finished difference Result 2984 states and 4021 transitions. [2024-12-02 10:25:35,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:25:35,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-12-02 10:25:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:35,887 INFO L225 Difference]: With dead ends: 2984 [2024-12-02 10:25:35,887 INFO L226 Difference]: Without dead ends: 1793 [2024-12-02 10:25:35,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:25:35,889 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 398 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:35,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1085 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 10:25:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2024-12-02 10:25:36,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1336. [2024-12-02 10:25:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1224 states have (on average 1.3619281045751634) internal successors, (1667), 1230 states have internal predecessors, (1667), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:36,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1817 transitions. [2024-12-02 10:25:36,085 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1817 transitions. Word has length 131 [2024-12-02 10:25:36,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:36,086 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1817 transitions. [2024-12-02 10:25:36,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:36,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1817 transitions. [2024-12-02 10:25:36,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:25:36,087 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:36,088 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:36,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-12-02 10:25:36,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:36,288 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:36,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1532427604, now seen corresponding path program 1 times [2024-12-02 10:25:36,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:36,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335447952] [2024-12-02 10:25:36,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:36,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:36,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:36,290 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:36,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-12-02 10:25:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:36,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:25:36,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:36,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:25:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:36,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:36,842 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:36,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335447952] [2024-12-02 10:25:36,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335447952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:36,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:36,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:25:36,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646447697] [2024-12-02 10:25:36,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:36,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:25:36,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:36,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:25:36,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:25:36,843 INFO L87 Difference]: Start difference. First operand 1336 states and 1817 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:39,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:39,006 INFO L93 Difference]: Finished difference Result 2998 states and 4041 transitions. [2024-12-02 10:25:39,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:25:39,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-12-02 10:25:39,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:39,010 INFO L225 Difference]: With dead ends: 2998 [2024-12-02 10:25:39,010 INFO L226 Difference]: Without dead ends: 1791 [2024-12-02 10:25:39,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:25:39,011 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 346 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:39,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1072 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 10:25:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-12-02 10:25:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1336. [2024-12-02 10:25:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1224 states have (on average 1.3619281045751634) internal successors, (1667), 1230 states have internal predecessors, (1667), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1817 transitions. [2024-12-02 10:25:39,187 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1817 transitions. Word has length 131 [2024-12-02 10:25:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:39,187 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1817 transitions. [2024-12-02 10:25:39,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:39,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1817 transitions. [2024-12-02 10:25:39,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:25:39,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:39,188 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:39,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-12-02 10:25:39,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:39,389 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:39,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:39,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1466574448, now seen corresponding path program 1 times [2024-12-02 10:25:39,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:39,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201264309] [2024-12-02 10:25:39,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:39,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:39,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:39,391 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:39,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-12-02 10:25:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:39,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 10:25:39,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:39,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:25:39,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:39,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 43 [2024-12-02 10:25:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:40,010 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:40,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:40,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201264309] [2024-12-02 10:25:40,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201264309] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:40,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:40,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:25:40,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23885277] [2024-12-02 10:25:40,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:40,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:25:40,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:40,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:25:40,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:25:40,011 INFO L87 Difference]: Start difference. First operand 1336 states and 1817 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:42,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:42,636 INFO L93 Difference]: Finished difference Result 3176 states and 4264 transitions. [2024-12-02 10:25:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:25:42,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-12-02 10:25:42,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:42,641 INFO L225 Difference]: With dead ends: 3176 [2024-12-02 10:25:42,641 INFO L226 Difference]: Without dead ends: 1969 [2024-12-02 10:25:42,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:25:42,642 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 395 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:42,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1081 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 10:25:42,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-12-02 10:25:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1303. [2024-12-02 10:25:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1191 states have (on average 1.3568429890848026) internal successors, (1616), 1197 states have internal predecessors, (1616), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1766 transitions. [2024-12-02 10:25:42,837 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1766 transitions. Word has length 131 [2024-12-02 10:25:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:42,837 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1766 transitions. [2024-12-02 10:25:42,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1766 transitions. [2024-12-02 10:25:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:25:42,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:42,839 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:42,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-12-02 10:25:43,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:43,039 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:43,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1022954514, now seen corresponding path program 1 times [2024-12-02 10:25:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:43,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563174582] [2024-12-02 10:25:43,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:43,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:43,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:43,041 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:43,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-12-02 10:25:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:43,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:25:43,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:43,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:25:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:43,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:43,650 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:43,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563174582] [2024-12-02 10:25:43,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563174582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:43,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:43,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:25:43,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411587598] [2024-12-02 10:25:43,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:43,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:25:43,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:43,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:25:43,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:25:43,651 INFO L87 Difference]: Start difference. First operand 1303 states and 1766 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:45,870 INFO L93 Difference]: Finished difference Result 2934 states and 3941 transitions. [2024-12-02 10:25:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:25:45,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-12-02 10:25:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:45,875 INFO L225 Difference]: With dead ends: 2934 [2024-12-02 10:25:45,875 INFO L226 Difference]: Without dead ends: 1760 [2024-12-02 10:25:45,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:25:45,877 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 390 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:45,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1124 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 10:25:45,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2024-12-02 10:25:46,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1289. [2024-12-02 10:25:46,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1177 states have (on average 1.3542905692438403) internal successors, (1594), 1183 states have internal predecessors, (1594), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:46,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1744 transitions. [2024-12-02 10:25:46,078 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1744 transitions. Word has length 131 [2024-12-02 10:25:46,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:46,078 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1744 transitions. [2024-12-02 10:25:46,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:46,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1744 transitions. [2024-12-02 10:25:46,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 10:25:46,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:46,080 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:46,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2024-12-02 10:25:46,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:46,280 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:46,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:46,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2139762541, now seen corresponding path program 1 times [2024-12-02 10:25:46,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:46,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339729276] [2024-12-02 10:25:46,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:46,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:46,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:46,283 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:46,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-12-02 10:25:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:46,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:25:46,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:47,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:47,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 153 treesize of output 57 [2024-12-02 10:25:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 10:25:47,201 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:47,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:47,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339729276] [2024-12-02 10:25:47,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339729276] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:47,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:47,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:25:47,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877453353] [2024-12-02 10:25:47,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:47,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:25:47,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:47,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:25:47,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:25:47,202 INFO L87 Difference]: Start difference. First operand 1289 states and 1744 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:48,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:48,302 INFO L93 Difference]: Finished difference Result 3531 states and 4798 transitions. [2024-12-02 10:25:48,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:25:48,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-12-02 10:25:48,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:48,305 INFO L225 Difference]: With dead ends: 3531 [2024-12-02 10:25:48,306 INFO L226 Difference]: Without dead ends: 2371 [2024-12-02 10:25:48,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:25:48,307 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 329 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:48,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1582 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:25:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2024-12-02 10:25:48,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1462. [2024-12-02 10:25:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1323 states have (on average 1.344671201814059) internal successors, (1779), 1331 states have internal predecessors, (1779), 94 states have call successors, (94), 44 states have call predecessors, (94), 44 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 10:25:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1967 transitions. [2024-12-02 10:25:48,519 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1967 transitions. Word has length 132 [2024-12-02 10:25:48,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:48,519 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 1967 transitions. [2024-12-02 10:25:48,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1967 transitions. [2024-12-02 10:25:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 10:25:48,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:48,521 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:48,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2024-12-02 10:25:48,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:48,721 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:48,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:48,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1369028975, now seen corresponding path program 1 times [2024-12-02 10:25:48,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:48,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536664362] [2024-12-02 10:25:48,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:48,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:48,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:48,723 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:48,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-12-02 10:25:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:49,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:25:49,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:49,029 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-12-02 10:25:49,029 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:49,029 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:49,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536664362] [2024-12-02 10:25:49,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536664362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:49,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:49,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:25:49,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379082906] [2024-12-02 10:25:49,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:49,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:25:49,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:49,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:25:49,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:25:49,030 INFO L87 Difference]: Start difference. First operand 1462 states and 1967 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:25:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:49,348 INFO L93 Difference]: Finished difference Result 2619 states and 3520 transitions. [2024-12-02 10:25:49,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:25:49,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 132 [2024-12-02 10:25:49,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:49,350 INFO L225 Difference]: With dead ends: 2619 [2024-12-02 10:25:49,350 INFO L226 Difference]: Without dead ends: 1248 [2024-12-02 10:25:49,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:25:49,351 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:49,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 795 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2024-12-02 10:25:49,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1218. [2024-12-02 10:25:49,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1106 states have (on average 1.3318264014466545) internal successors, (1473), 1112 states have internal predecessors, (1473), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:49,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1623 transitions. [2024-12-02 10:25:49,534 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1623 transitions. Word has length 132 [2024-12-02 10:25:49,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:49,534 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1623 transitions. [2024-12-02 10:25:49,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:25:49,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1623 transitions. [2024-12-02 10:25:49,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:25:49,535 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:49,535 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:49,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2024-12-02 10:25:49,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:49,736 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:49,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash -617799604, now seen corresponding path program 1 times [2024-12-02 10:25:49,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:49,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368761892] [2024-12-02 10:25:49,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:49,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:49,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:49,738 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:49,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-12-02 10:25:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:50,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:25:50,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:50,060 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:50,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:50,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368761892] [2024-12-02 10:25:50,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368761892] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:50,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:50,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:25:50,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197768685] [2024-12-02 10:25:50,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:50,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:25:50,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:50,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:25:50,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:25:50,061 INFO L87 Difference]: Start difference. First operand 1218 states and 1623 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:50,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:50,261 INFO L93 Difference]: Finished difference Result 2257 states and 3017 transitions. [2024-12-02 10:25:50,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:25:50,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-12-02 10:25:50,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:50,264 INFO L225 Difference]: With dead ends: 2257 [2024-12-02 10:25:50,264 INFO L226 Difference]: Without dead ends: 1168 [2024-12-02 10:25:50,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:25:50,265 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:50,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 504 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:25:50,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-12-02 10:25:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1158. [2024-12-02 10:25:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1046 states have (on average 1.312619502868069) internal successors, (1373), 1052 states have internal predecessors, (1373), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:50,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1523 transitions. [2024-12-02 10:25:50,445 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1523 transitions. Word has length 133 [2024-12-02 10:25:50,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:50,446 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1523 transitions. [2024-12-02 10:25:50,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:50,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1523 transitions. [2024-12-02 10:25:50,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:25:50,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:50,447 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:50,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Ended with exit code 0 [2024-12-02 10:25:50,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:50,647 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:50,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:50,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1768454860, now seen corresponding path program 1 times [2024-12-02 10:25:50,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:50,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148586378] [2024-12-02 10:25:50,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:50,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:50,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:50,649 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:50,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-12-02 10:25:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:50,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:25:50,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:51,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:25:51,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:25:51,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 49 [2024-12-02 10:25:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:51,564 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:51,564 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:51,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148586378] [2024-12-02 10:25:51,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148586378] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:51,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:51,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:25:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936593887] [2024-12-02 10:25:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:51,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:25:51,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:51,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:25:51,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:25:51,564 INFO L87 Difference]: Start difference. First operand 1158 states and 1523 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:55,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:55,766 INFO L93 Difference]: Finished difference Result 2836 states and 3689 transitions. [2024-12-02 10:25:55,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:25:55,767 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-12-02 10:25:55,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:55,769 INFO L225 Difference]: With dead ends: 2836 [2024-12-02 10:25:55,769 INFO L226 Difference]: Without dead ends: 1807 [2024-12-02 10:25:55,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:25:55,770 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 479 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:55,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1890 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 10:25:55,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-12-02 10:25:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1184. [2024-12-02 10:25:55,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1072 states have (on average 1.3162313432835822) internal successors, (1411), 1078 states have internal predecessors, (1411), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:55,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1561 transitions. [2024-12-02 10:25:55,955 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1561 transitions. Word has length 133 [2024-12-02 10:25:55,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:55,955 INFO L471 AbstractCegarLoop]: Abstraction has 1184 states and 1561 transitions. [2024-12-02 10:25:55,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:55,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1561 transitions. [2024-12-02 10:25:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:25:55,956 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:55,956 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:55,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2024-12-02 10:25:56,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:56,157 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:56,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1909003470, now seen corresponding path program 1 times [2024-12-02 10:25:56,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:25:56,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718476737] [2024-12-02 10:25:56,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:56,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:25:56,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:25:56,159 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:25:56,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-12-02 10:25:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:56,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:25:56,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:56,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:25:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:56,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:25:56,812 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:25:56,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718476737] [2024-12-02 10:25:56,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718476737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:56,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:56,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:25:56,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819820050] [2024-12-02 10:25:56,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:56,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:25:56,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:25:56,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:25:56,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:25:56,813 INFO L87 Difference]: Start difference. First operand 1184 states and 1561 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:59,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:59,598 INFO L93 Difference]: Finished difference Result 2862 states and 3725 transitions. [2024-12-02 10:25:59,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:25:59,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-12-02 10:25:59,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:59,601 INFO L225 Difference]: With dead ends: 2862 [2024-12-02 10:25:59,601 INFO L226 Difference]: Without dead ends: 1807 [2024-12-02 10:25:59,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:25:59,602 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 503 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:59,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1294 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 10:25:59,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-12-02 10:25:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1188. [2024-12-02 10:25:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1076 states have (on average 1.3150557620817844) internal successors, (1415), 1082 states have internal predecessors, (1415), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:25:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1565 transitions. [2024-12-02 10:25:59,800 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1565 transitions. Word has length 133 [2024-12-02 10:25:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:59,800 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1565 transitions. [2024-12-02 10:25:59,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:25:59,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1565 transitions. [2024-12-02 10:25:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:25:59,801 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:59,802 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:59,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2024-12-02 10:26:00,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:00,002 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:00,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:00,002 INFO L85 PathProgramCache]: Analyzing trace with hash 103565136, now seen corresponding path program 1 times [2024-12-02 10:26:00,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:00,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467285629] [2024-12-02 10:26:00,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:00,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:00,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:00,004 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:00,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-12-02 10:26:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:00,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:26:00,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:00,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:26:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:00,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:00,701 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467285629] [2024-12-02 10:26:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467285629] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:00,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:00,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:26:00,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103014065] [2024-12-02 10:26:00,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:00,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:26:00,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:00,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:26:00,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:26:00,703 INFO L87 Difference]: Start difference. First operand 1188 states and 1565 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:03,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:03,570 INFO L93 Difference]: Finished difference Result 2866 states and 3727 transitions. [2024-12-02 10:26:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:26:03,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-12-02 10:26:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:03,573 INFO L225 Difference]: With dead ends: 2866 [2024-12-02 10:26:03,573 INFO L226 Difference]: Without dead ends: 1807 [2024-12-02 10:26:03,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:26:03,574 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 499 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:03,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1368 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 10:26:03,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-12-02 10:26:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1194. [2024-12-02 10:26:03,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1082 states have (on average 1.3133086876155269) internal successors, (1421), 1088 states have internal predecessors, (1421), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1571 transitions. [2024-12-02 10:26:03,758 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1571 transitions. Word has length 133 [2024-12-02 10:26:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:03,759 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 1571 transitions. [2024-12-02 10:26:03,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1571 transitions. [2024-12-02 10:26:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:26:03,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:03,760 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:03,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2024-12-02 10:26:03,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:03,960 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:03,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -714083314, now seen corresponding path program 1 times [2024-12-02 10:26:03,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471264978] [2024-12-02 10:26:03,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:03,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:03,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:03,962 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:03,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2024-12-02 10:26:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:04,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:26:04,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:04,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:26:04,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:26:04,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 35 [2024-12-02 10:26:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:04,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:04,698 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:04,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471264978] [2024-12-02 10:26:04,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471264978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:04,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:04,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:26:04,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015080565] [2024-12-02 10:26:04,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:04,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:26:04,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:04,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:26:04,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:26:04,699 INFO L87 Difference]: Start difference. First operand 1194 states and 1571 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:07,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:07,364 INFO L93 Difference]: Finished difference Result 2696 states and 3511 transitions. [2024-12-02 10:26:07,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:26:07,365 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 133 [2024-12-02 10:26:07,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:07,367 INFO L225 Difference]: With dead ends: 2696 [2024-12-02 10:26:07,367 INFO L226 Difference]: Without dead ends: 1631 [2024-12-02 10:26:07,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:26:07,368 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 319 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:07,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1378 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 10:26:07,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-12-02 10:26:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1194. [2024-12-02 10:26:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1082 states have (on average 1.3133086876155269) internal successors, (1421), 1088 states have internal predecessors, (1421), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1571 transitions. [2024-12-02 10:26:07,559 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1571 transitions. Word has length 133 [2024-12-02 10:26:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:07,559 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 1571 transitions. [2024-12-02 10:26:07,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:07,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1571 transitions. [2024-12-02 10:26:07,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 10:26:07,560 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:07,560 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:07,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2024-12-02 10:26:07,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:07,760 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:07,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2085842925, now seen corresponding path program 1 times [2024-12-02 10:26:07,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:07,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215863983] [2024-12-02 10:26:07,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:07,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:07,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:07,763 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:07,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2024-12-02 10:26:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:08,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:26:08,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:08,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:26:08,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 56 [2024-12-02 10:26:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 10:26:08,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:08,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:08,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215863983] [2024-12-02 10:26:08,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215863983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:08,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:08,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:26:08,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613119983] [2024-12-02 10:26:08,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:08,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:26:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:08,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:26:08,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:26:08,839 INFO L87 Difference]: Start difference. First operand 1194 states and 1571 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:09,924 INFO L93 Difference]: Finished difference Result 2578 states and 3351 transitions. [2024-12-02 10:26:09,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:26:09,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-12-02 10:26:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:09,927 INFO L225 Difference]: With dead ends: 2578 [2024-12-02 10:26:09,927 INFO L226 Difference]: Without dead ends: 1513 [2024-12-02 10:26:09,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:26:09,929 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 358 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:09,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1347 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:26:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-12-02 10:26:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1174. [2024-12-02 10:26:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1062 states have (on average 1.3003766478342749) internal successors, (1381), 1068 states have internal predecessors, (1381), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1531 transitions. [2024-12-02 10:26:10,122 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1531 transitions. Word has length 133 [2024-12-02 10:26:10,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:10,122 INFO L471 AbstractCegarLoop]: Abstraction has 1174 states and 1531 transitions. [2024-12-02 10:26:10,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1531 transitions. [2024-12-02 10:26:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 10:26:10,124 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:10,124 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:10,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2024-12-02 10:26:10,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:10,324 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:10,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash -748403149, now seen corresponding path program 1 times [2024-12-02 10:26:10,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:10,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286415633] [2024-12-02 10:26:10,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:10,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:10,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:10,326 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:10,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2024-12-02 10:26:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:10,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:26:10,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:10,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:26:10,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 25 [2024-12-02 10:26:10,976 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:10,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:10,976 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:10,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286415633] [2024-12-02 10:26:10,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286415633] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:10,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:10,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:26:10,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114433504] [2024-12-02 10:26:10,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:10,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:26:10,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:10,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:26:10,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:26:10,977 INFO L87 Difference]: Start difference. First operand 1174 states and 1531 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:11,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:11,498 INFO L93 Difference]: Finished difference Result 2270 states and 2981 transitions. [2024-12-02 10:26:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:26:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-12-02 10:26:11,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:11,501 INFO L225 Difference]: With dead ends: 2270 [2024-12-02 10:26:11,501 INFO L226 Difference]: Without dead ends: 1224 [2024-12-02 10:26:11,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:26:11,502 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 18 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:11,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1228 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:26:11,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-12-02 10:26:11,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1191. [2024-12-02 10:26:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1079 states have (on average 1.3058387395736792) internal successors, (1409), 1085 states have internal predecessors, (1409), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1559 transitions. [2024-12-02 10:26:11,688 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1559 transitions. Word has length 134 [2024-12-02 10:26:11,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:11,688 INFO L471 AbstractCegarLoop]: Abstraction has 1191 states and 1559 transitions. [2024-12-02 10:26:11,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:11,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1559 transitions. [2024-12-02 10:26:11,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 10:26:11,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:11,689 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:11,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Ended with exit code 0 [2024-12-02 10:26:11,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:11,890 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:11,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:11,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1557749775, now seen corresponding path program 1 times [2024-12-02 10:26:11,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:11,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672144331] [2024-12-02 10:26:11,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:11,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:11,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:11,892 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:11,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2024-12-02 10:26:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:12,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:26:12,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:12,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:26:12,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:26:12,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 33 [2024-12-02 10:26:12,811 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:12,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:12,811 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:12,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672144331] [2024-12-02 10:26:12,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672144331] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:12,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:12,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 10:26:12,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779008817] [2024-12-02 10:26:12,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:12,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 10:26:12,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:12,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 10:26:12,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:26:12,812 INFO L87 Difference]: Start difference. First operand 1191 states and 1559 transitions. Second operand has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:14,330 INFO L93 Difference]: Finished difference Result 1603 states and 2054 transitions. [2024-12-02 10:26:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 10:26:14,331 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-12-02 10:26:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:14,333 INFO L225 Difference]: With dead ends: 1603 [2024-12-02 10:26:14,333 INFO L226 Difference]: Without dead ends: 1601 [2024-12-02 10:26:14,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2024-12-02 10:26:14,334 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 175 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:14,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 3628 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:26:14,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-12-02 10:26:14,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1128. [2024-12-02 10:26:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1016 states have (on average 1.3188976377952757) internal successors, (1340), 1022 states have internal predecessors, (1340), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:14,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1490 transitions. [2024-12-02 10:26:14,569 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1490 transitions. Word has length 134 [2024-12-02 10:26:14,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:14,569 INFO L471 AbstractCegarLoop]: Abstraction has 1128 states and 1490 transitions. [2024-12-02 10:26:14,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1490 transitions. [2024-12-02 10:26:14,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 10:26:14,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:14,570 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:14,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Ended with exit code 0 [2024-12-02 10:26:14,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:14,771 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:14,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:14,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1920026845, now seen corresponding path program 1 times [2024-12-02 10:26:14,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:14,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442060385] [2024-12-02 10:26:14,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:14,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:14,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:14,774 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:14,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2024-12-02 10:26:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:15,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 10:26:15,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:15,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:26:15,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:26:16,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 39 [2024-12-02 10:26:16,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:26:16,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 33 [2024-12-02 10:26:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:17,258 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:17,258 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:17,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442060385] [2024-12-02 10:26:17,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442060385] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:17,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:17,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 10:26:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531503649] [2024-12-02 10:26:17,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:17,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 10:26:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:17,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 10:26:17,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:26:17,260 INFO L87 Difference]: Start difference. First operand 1128 states and 1490 transitions. Second operand has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:19,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:21,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:27,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:28,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:34,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:40,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:42,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:46,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:48,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:50,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:26:50,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:50,434 INFO L93 Difference]: Finished difference Result 3034 states and 3930 transitions. [2024-12-02 10:26:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 10:26:50,435 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 10:26:50,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:50,438 INFO L225 Difference]: With dead ends: 3034 [2024-12-02 10:26:50,438 INFO L226 Difference]: Without dead ends: 2035 [2024-12-02 10:26:50,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:26:50,439 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 580 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 119 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:50,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 2669 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1879 Invalid, 1 Unknown, 0 Unchecked, 29.5s Time] [2024-12-02 10:26:50,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2024-12-02 10:26:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1277. [2024-12-02 10:26:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1165 states have (on average 1.3227467811158797) internal successors, (1541), 1171 states have internal predecessors, (1541), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1691 transitions. [2024-12-02 10:26:50,660 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1691 transitions. Word has length 138 [2024-12-02 10:26:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:50,660 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1691 transitions. [2024-12-02 10:26:50,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1691 transitions. [2024-12-02 10:26:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 10:26:50,661 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:50,661 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:50,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2024-12-02 10:26:50,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:50,861 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:50,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1032812069, now seen corresponding path program 1 times [2024-12-02 10:26:50,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:50,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914589479] [2024-12-02 10:26:50,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:50,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:50,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:50,864 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:50,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2024-12-02 10:26:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:51,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:26:51,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:51,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:51,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:51,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914589479] [2024-12-02 10:26:51,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914589479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:51,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:51,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:26:51,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19289192] [2024-12-02 10:26:51,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:51,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:26:51,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:51,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:26:51,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:51,194 INFO L87 Difference]: Start difference. First operand 1277 states and 1691 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:51,429 INFO L93 Difference]: Finished difference Result 2565 states and 3407 transitions. [2024-12-02 10:26:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:26:51,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 10:26:51,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:51,432 INFO L225 Difference]: With dead ends: 2565 [2024-12-02 10:26:51,432 INFO L226 Difference]: Without dead ends: 1291 [2024-12-02 10:26:51,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:26:51,433 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:51,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 336 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:26:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2024-12-02 10:26:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1291. [2024-12-02 10:26:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1179 states have (on average 1.3189143341815097) internal successors, (1555), 1185 states have internal predecessors, (1555), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1705 transitions. [2024-12-02 10:26:51,650 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1705 transitions. Word has length 138 [2024-12-02 10:26:51,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:51,650 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1705 transitions. [2024-12-02 10:26:51,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1705 transitions. [2024-12-02 10:26:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 10:26:51,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:51,651 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:51,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Ended with exit code 0 [2024-12-02 10:26:51,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:51,852 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:51,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:51,852 INFO L85 PathProgramCache]: Analyzing trace with hash -532013274, now seen corresponding path program 1 times [2024-12-02 10:26:51,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:51,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767379316] [2024-12-02 10:26:51,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:51,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:51,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:51,854 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:51,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2024-12-02 10:26:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:52,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:26:52,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:52,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:26:52,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:26:52,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 43 [2024-12-02 10:26:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:52,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:52,759 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:52,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767379316] [2024-12-02 10:26:52,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767379316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:52,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:52,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:26:52,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609630741] [2024-12-02 10:26:52,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:52,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:26:52,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:52,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:26:52,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:26:52,760 INFO L87 Difference]: Start difference. First operand 1291 states and 1705 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:56,960 INFO L93 Difference]: Finished difference Result 3635 states and 4661 transitions. [2024-12-02 10:26:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:26:56,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 10:26:56,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:56,964 INFO L225 Difference]: With dead ends: 3635 [2024-12-02 10:26:56,964 INFO L226 Difference]: Without dead ends: 2347 [2024-12-02 10:26:56,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:26:56,965 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 484 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:56,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1677 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 10:26:56,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2024-12-02 10:26:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 1303. [2024-12-02 10:26:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1191 states have (on average 1.3190596137699413) internal successors, (1571), 1197 states have internal predecessors, (1571), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:26:57,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1721 transitions. [2024-12-02 10:26:57,194 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1721 transitions. Word has length 138 [2024-12-02 10:26:57,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:57,194 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1721 transitions. [2024-12-02 10:26:57,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:57,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1721 transitions. [2024-12-02 10:26:57,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 10:26:57,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:57,196 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:57,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Ended with exit code 0 [2024-12-02 10:26:57,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:57,397 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:57,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash -391464664, now seen corresponding path program 1 times [2024-12-02 10:26:57,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:26:57,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894865179] [2024-12-02 10:26:57,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:57,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:26:57,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:26:57,399 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:26:57,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2024-12-02 10:26:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:57,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:26:57,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:57,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:26:57,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:26:57,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 36 [2024-12-02 10:26:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:58,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:58,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:26:58,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894865179] [2024-12-02 10:26:58,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894865179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:58,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:58,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:26:58,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72777063] [2024-12-02 10:26:58,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:58,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:26:58,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:26:58,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:26:58,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:26:58,065 INFO L87 Difference]: Start difference. First operand 1303 states and 1721 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:00,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:00,974 INFO L93 Difference]: Finished difference Result 3295 states and 4242 transitions. [2024-12-02 10:27:00,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:27:00,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 10:27:00,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:00,977 INFO L225 Difference]: With dead ends: 3295 [2024-12-02 10:27:00,977 INFO L226 Difference]: Without dead ends: 1995 [2024-12-02 10:27:00,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:27:00,978 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 324 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:00,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1022 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 10:27:00,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2024-12-02 10:27:01,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1303. [2024-12-02 10:27:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1191 states have (on average 1.3190596137699413) internal successors, (1571), 1197 states have internal predecessors, (1571), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1721 transitions. [2024-12-02 10:27:01,221 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1721 transitions. Word has length 138 [2024-12-02 10:27:01,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:01,221 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1721 transitions. [2024-12-02 10:27:01,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1721 transitions. [2024-12-02 10:27:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 10:27:01,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:01,222 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:01,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Ended with exit code 0 [2024-12-02 10:27:01,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:01,423 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:01,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash -509381020, now seen corresponding path program 1 times [2024-12-02 10:27:01,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50106304] [2024-12-02 10:27:01,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:01,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:01,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:01,425 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:01,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2024-12-02 10:27:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:01,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:27:01,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:01,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:27:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:02,117 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:02,117 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:02,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50106304] [2024-12-02 10:27:02,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50106304] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:02,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:02,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:27:02,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080031063] [2024-12-02 10:27:02,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:02,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:27:02,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:02,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:27:02,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:27:02,118 INFO L87 Difference]: Start difference. First operand 1303 states and 1721 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:05,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:05,180 INFO L93 Difference]: Finished difference Result 3645 states and 4671 transitions. [2024-12-02 10:27:05,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:27:05,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 10:27:05,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:05,184 INFO L225 Difference]: With dead ends: 3645 [2024-12-02 10:27:05,184 INFO L226 Difference]: Without dead ends: 2345 [2024-12-02 10:27:05,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:27:05,185 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 458 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:05,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1267 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 10:27:05,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2024-12-02 10:27:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1303. [2024-12-02 10:27:05,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1191 states have (on average 1.3173803526448362) internal successors, (1569), 1197 states have internal predecessors, (1569), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:05,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1719 transitions. [2024-12-02 10:27:05,418 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1719 transitions. Word has length 138 [2024-12-02 10:27:05,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:05,419 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1719 transitions. [2024-12-02 10:27:05,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:05,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1719 transitions. [2024-12-02 10:27:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 10:27:05,420 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:05,420 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:05,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Ended with exit code 0 [2024-12-02 10:27:05,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:05,620 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:05,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:05,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1018854110, now seen corresponding path program 1 times [2024-12-02 10:27:05,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:05,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042635050] [2024-12-02 10:27:05,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:05,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:05,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:05,623 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:05,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2024-12-02 10:27:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:05,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:27:05,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:06,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:27:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:06,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:06,322 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:06,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042635050] [2024-12-02 10:27:06,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042635050] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:06,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:06,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:27:06,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477021857] [2024-12-02 10:27:06,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:06,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:27:06,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:06,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:27:06,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:27:06,323 INFO L87 Difference]: Start difference. First operand 1303 states and 1719 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:09,632 INFO L93 Difference]: Finished difference Result 3643 states and 4663 transitions. [2024-12-02 10:27:09,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:27:09,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 10:27:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:09,635 INFO L225 Difference]: With dead ends: 3643 [2024-12-02 10:27:09,635 INFO L226 Difference]: Without dead ends: 2343 [2024-12-02 10:27:09,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:27:09,636 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 412 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:09,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 1358 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 10:27:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2024-12-02 10:27:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 1301. [2024-12-02 10:27:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1189 states have (on average 1.3145500420521448) internal successors, (1563), 1195 states have internal predecessors, (1563), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1713 transitions. [2024-12-02 10:27:09,875 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1713 transitions. Word has length 138 [2024-12-02 10:27:09,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:09,875 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1713 transitions. [2024-12-02 10:27:09,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1713 transitions. [2024-12-02 10:27:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 10:27:09,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:09,876 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:09,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2024-12-02 10:27:10,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:10,077 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:10,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:10,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1530934949, now seen corresponding path program 1 times [2024-12-02 10:27:10,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:10,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191134297] [2024-12-02 10:27:10,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:10,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:10,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:10,079 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:10,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2024-12-02 10:27:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:10,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 10:27:10,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:10,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:27:10,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:27:10,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:10,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:27:11,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:11,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 76 [2024-12-02 10:27:12,392 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:12,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 36 [2024-12-02 10:27:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 233 proven. 21 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-02 10:27:12,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:13,406 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:13,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191134297] [2024-12-02 10:27:13,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191134297] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:13,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:27:13,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [26] total 34 [2024-12-02 10:27:13,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82677249] [2024-12-02 10:27:13,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:13,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:27:13,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:13,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:27:13,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1024, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:27:13,407 INFO L87 Difference]: Start difference. First operand 1301 states and 1713 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:14,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:14,706 INFO L93 Difference]: Finished difference Result 3372 states and 4411 transitions. [2024-12-02 10:27:14,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:27:14,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 10:27:14,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:14,709 INFO L225 Difference]: With dead ends: 3372 [2024-12-02 10:27:14,709 INFO L226 Difference]: Without dead ends: 2074 [2024-12-02 10:27:14,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=127, Invalid=1433, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 10:27:14,711 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 141 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:14,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1932 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:27:14,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2024-12-02 10:27:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1415. [2024-12-02 10:27:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1303 states have (on average 1.3207981580966999) internal successors, (1721), 1309 states have internal predecessors, (1721), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1871 transitions. [2024-12-02 10:27:14,977 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1871 transitions. Word has length 138 [2024-12-02 10:27:14,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:14,977 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1871 transitions. [2024-12-02 10:27:14,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:14,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1871 transitions. [2024-12-02 10:27:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:14,979 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:14,979 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:14,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Ended with exit code 0 [2024-12-02 10:27:15,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:15,180 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:15,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash -407059554, now seen corresponding path program 1 times [2024-12-02 10:27:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:15,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385655737] [2024-12-02 10:27:15,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:15,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:15,182 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:15,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2024-12-02 10:27:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:15,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 10:27:15,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:15,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:27:15,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:27:15,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:27:15,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:27:16,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:16,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 63 [2024-12-02 10:27:16,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:16,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 54 [2024-12-02 10:27:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:27:16,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:16,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:16,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385655737] [2024-12-02 10:27:16,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385655737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:16,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:16,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:27:16,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611176673] [2024-12-02 10:27:16,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:16,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:27:16,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:16,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:27:16,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:27:16,557 INFO L87 Difference]: Start difference. First operand 1415 states and 1871 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:21,077 INFO L93 Difference]: Finished difference Result 3564 states and 4613 transitions. [2024-12-02 10:27:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:27:21,078 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-12-02 10:27:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:21,080 INFO L225 Difference]: With dead ends: 3564 [2024-12-02 10:27:21,080 INFO L226 Difference]: Without dead ends: 2152 [2024-12-02 10:27:21,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:27:21,082 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 613 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:21,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1488 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 10:27:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2024-12-02 10:27:21,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 1435. [2024-12-02 10:27:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1323 states have (on average 1.3189720332577475) internal successors, (1745), 1329 states have internal predecessors, (1745), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1895 transitions. [2024-12-02 10:27:21,334 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1895 transitions. Word has length 140 [2024-12-02 10:27:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:21,334 INFO L471 AbstractCegarLoop]: Abstraction has 1435 states and 1895 transitions. [2024-12-02 10:27:21,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1895 transitions. [2024-12-02 10:27:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:21,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:21,335 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:21,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Ended with exit code 0 [2024-12-02 10:27:21,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:21,536 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:21,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1893763036, now seen corresponding path program 1 times [2024-12-02 10:27:21,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:21,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898007955] [2024-12-02 10:27:21,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:21,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:21,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:21,538 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:21,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2024-12-02 10:27:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:21,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:27:21,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:21,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:21,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 10:27:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:21,950 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:21,950 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:21,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898007955] [2024-12-02 10:27:21,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898007955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:21,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:21,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:27:21,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830573700] [2024-12-02 10:27:21,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:21,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:27:21,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:21,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:27:21,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:27:21,951 INFO L87 Difference]: Start difference. First operand 1435 states and 1895 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:22,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:22,830 INFO L93 Difference]: Finished difference Result 3632 states and 4801 transitions. [2024-12-02 10:27:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:27:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:27:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:22,833 INFO L225 Difference]: With dead ends: 3632 [2024-12-02 10:27:22,833 INFO L226 Difference]: Without dead ends: 2200 [2024-12-02 10:27:22,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:27:22,834 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 101 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:22,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 644 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:27:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2024-12-02 10:27:23,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1606. [2024-12-02 10:27:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1494 states have (on average 1.3386880856760375) internal successors, (2000), 1500 states have internal predecessors, (2000), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2150 transitions. [2024-12-02 10:27:23,105 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2150 transitions. Word has length 140 [2024-12-02 10:27:23,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:23,105 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 2150 transitions. [2024-12-02 10:27:23,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2150 transitions. [2024-12-02 10:27:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:23,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:23,106 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:23,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Ended with exit code 0 [2024-12-02 10:27:23,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:23,307 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:23,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:23,307 INFO L85 PathProgramCache]: Analyzing trace with hash 613899358, now seen corresponding path program 1 times [2024-12-02 10:27:23,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:23,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358790189] [2024-12-02 10:27:23,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:23,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:23,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:23,309 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:23,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2024-12-02 10:27:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:23,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 10:27:23,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:23,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:27:23,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:27:23,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:27:23,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:27:24,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:24,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 63 [2024-12-02 10:27:24,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:24,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 55 [2024-12-02 10:27:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:27:24,494 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:24,494 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:24,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358790189] [2024-12-02 10:27:24,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358790189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:24,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:24,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:27:24,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295663045] [2024-12-02 10:27:24,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:24,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:27:24,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:24,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:27:24,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:27:24,495 INFO L87 Difference]: Start difference. First operand 1606 states and 2150 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:29,585 INFO L93 Difference]: Finished difference Result 3944 states and 5173 transitions. [2024-12-02 10:27:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:27:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-12-02 10:27:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:29,588 INFO L225 Difference]: With dead ends: 3944 [2024-12-02 10:27:29,589 INFO L226 Difference]: Without dead ends: 2341 [2024-12-02 10:27:29,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:27:29,590 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 588 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:29,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1718 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 10:27:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2024-12-02 10:27:29,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1608. [2024-12-02 10:27:29,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1496 states have (on average 1.338235294117647) internal successors, (2002), 1502 states have internal predecessors, (2002), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2152 transitions. [2024-12-02 10:27:29,862 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2152 transitions. Word has length 140 [2024-12-02 10:27:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:29,862 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2152 transitions. [2024-12-02 10:27:29,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2152 transitions. [2024-12-02 10:27:29,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:29,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:29,863 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:29,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Ended with exit code 0 [2024-12-02 10:27:30,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:30,064 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:30,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:30,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1813560348, now seen corresponding path program 1 times [2024-12-02 10:27:30,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:30,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427152588] [2024-12-02 10:27:30,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:30,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:30,066 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:30,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2024-12-02 10:27:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:30,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:27:30,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:30,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:27:30,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:30,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 24 [2024-12-02 10:27:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:30,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:30,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:30,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427152588] [2024-12-02 10:27:30,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427152588] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:30,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:30,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:27:30,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489428369] [2024-12-02 10:27:30,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:30,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:27:30,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:30,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:27:30,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:27:30,785 INFO L87 Difference]: Start difference. First operand 1608 states and 2152 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:35,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:35,269 INFO L93 Difference]: Finished difference Result 3854 states and 5074 transitions. [2024-12-02 10:27:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:27:35,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:27:35,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:35,272 INFO L225 Difference]: With dead ends: 3854 [2024-12-02 10:27:35,273 INFO L226 Difference]: Without dead ends: 2249 [2024-12-02 10:27:35,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:27:35,274 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 503 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:35,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1456 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 10:27:35,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2024-12-02 10:27:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 1622. [2024-12-02 10:27:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1510 states have (on average 1.3403973509933775) internal successors, (2024), 1516 states have internal predecessors, (2024), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2174 transitions. [2024-12-02 10:27:35,558 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2174 transitions. Word has length 140 [2024-12-02 10:27:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:35,558 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2174 transitions. [2024-12-02 10:27:35,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2174 transitions. [2024-12-02 10:27:35,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:35,560 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:35,560 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:35,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Ended with exit code 0 [2024-12-02 10:27:35,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:35,760 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:35,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:35,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1954108958, now seen corresponding path program 1 times [2024-12-02 10:27:35,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:35,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342196075] [2024-12-02 10:27:35,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:35,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:35,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:35,762 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:35,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2024-12-02 10:27:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:36,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 10:27:36,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:36,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:27:36,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:27:36,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:27:36,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:27:36,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:36,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 59 [2024-12-02 10:27:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:36,781 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:36,781 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:36,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342196075] [2024-12-02 10:27:36,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342196075] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:36,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:36,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:27:36,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124683183] [2024-12-02 10:27:36,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:36,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:27:36,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:36,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:27:36,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:27:36,782 INFO L87 Difference]: Start difference. First operand 1622 states and 2174 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:40,427 INFO L93 Difference]: Finished difference Result 3962 states and 5195 transitions. [2024-12-02 10:27:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:27:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:27:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:40,430 INFO L225 Difference]: With dead ends: 3962 [2024-12-02 10:27:40,430 INFO L226 Difference]: Without dead ends: 2343 [2024-12-02 10:27:40,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:27:40,432 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 424 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:40,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1620 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 10:27:40,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2024-12-02 10:27:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 1638. [2024-12-02 10:27:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1526 states have (on average 1.3368283093053734) internal successors, (2040), 1532 states have internal predecessors, (2040), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2190 transitions. [2024-12-02 10:27:40,703 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2190 transitions. Word has length 140 [2024-12-02 10:27:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:40,703 INFO L471 AbstractCegarLoop]: Abstraction has 1638 states and 2190 transitions. [2024-12-02 10:27:40,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2190 transitions. [2024-12-02 10:27:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:40,705 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:40,705 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:40,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Ended with exit code 0 [2024-12-02 10:27:40,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:40,905 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:40,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:40,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1319899426, now seen corresponding path program 1 times [2024-12-02 10:27:40,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:40,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096684546] [2024-12-02 10:27:40,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:40,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:40,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:40,907 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:40,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2024-12-02 10:27:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:41,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:27:41,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:41,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:27:41,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:27:41,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:27:41,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:27:41,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:41,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 46 [2024-12-02 10:27:41,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:41,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 39 [2024-12-02 10:27:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:27:41,923 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:41,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:41,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096684546] [2024-12-02 10:27:41,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096684546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:41,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:41,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:27:41,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920973733] [2024-12-02 10:27:41,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:41,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:27:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:41,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:27:41,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:27:41,925 INFO L87 Difference]: Start difference. First operand 1638 states and 2190 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:45,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:45,086 INFO L93 Difference]: Finished difference Result 3820 states and 5019 transitions. [2024-12-02 10:27:45,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:27:45,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-12-02 10:27:45,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:45,090 INFO L225 Difference]: With dead ends: 3820 [2024-12-02 10:27:45,090 INFO L226 Difference]: Without dead ends: 2185 [2024-12-02 10:27:45,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:27:45,091 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 586 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:45,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 956 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 10:27:45,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2024-12-02 10:27:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 1638. [2024-12-02 10:27:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1526 states have (on average 1.3368283093053734) internal successors, (2040), 1532 states have internal predecessors, (2040), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2190 transitions. [2024-12-02 10:27:45,386 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2190 transitions. Word has length 140 [2024-12-02 10:27:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:45,386 INFO L471 AbstractCegarLoop]: Abstraction has 1638 states and 2190 transitions. [2024-12-02 10:27:45,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2190 transitions. [2024-12-02 10:27:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:45,387 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:45,387 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:45,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Ended with exit code 0 [2024-12-02 10:27:45,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:45,588 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:45,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:45,588 INFO L85 PathProgramCache]: Analyzing trace with hash -75634069, now seen corresponding path program 1 times [2024-12-02 10:27:45,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:45,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983527074] [2024-12-02 10:27:45,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:45,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:45,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:45,590 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:45,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2024-12-02 10:27:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:45,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:27:45,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:45,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:45,940 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:45,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983527074] [2024-12-02 10:27:45,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983527074] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:45,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:45,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:27:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593196579] [2024-12-02 10:27:45,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:45,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:27:45,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:45,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:27:45,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:27:45,941 INFO L87 Difference]: Start difference. First operand 1638 states and 2190 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:46,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:46,239 INFO L93 Difference]: Finished difference Result 3198 states and 4257 transitions. [2024-12-02 10:27:46,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:27:46,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:27:46,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:46,242 INFO L225 Difference]: With dead ends: 3198 [2024-12-02 10:27:46,242 INFO L226 Difference]: Without dead ends: 1563 [2024-12-02 10:27:46,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:27:46,243 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:46,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 474 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:46,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-12-02 10:27:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1524. [2024-12-02 10:27:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1412 states have (on average 1.3045325779036827) internal successors, (1842), 1418 states have internal predecessors, (1842), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 10:27:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1992 transitions. [2024-12-02 10:27:46,515 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1992 transitions. Word has length 140 [2024-12-02 10:27:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:46,516 INFO L471 AbstractCegarLoop]: Abstraction has 1524 states and 1992 transitions. [2024-12-02 10:27:46,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1992 transitions. [2024-12-02 10:27:46,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:46,517 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:46,517 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:46,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Ended with exit code 0 [2024-12-02 10:27:46,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:46,717 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:46,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:46,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1526545821, now seen corresponding path program 1 times [2024-12-02 10:27:46,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:46,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487681581] [2024-12-02 10:27:46,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:46,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:46,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:46,719 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:46,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2024-12-02 10:27:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:47,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:27:47,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:47,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:47,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 10:27:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:47,158 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:47,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:47,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487681581] [2024-12-02 10:27:47,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487681581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:47,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:47,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:47,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105747826] [2024-12-02 10:27:47,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:47,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:47,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:47,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:47,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:47,158 INFO L87 Difference]: Start difference. First operand 1524 states and 1992 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:48,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:48,043 INFO L93 Difference]: Finished difference Result 3720 states and 4834 transitions. [2024-12-02 10:27:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:27:48,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:27:48,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:48,046 INFO L225 Difference]: With dead ends: 3720 [2024-12-02 10:27:48,046 INFO L226 Difference]: Without dead ends: 2199 [2024-12-02 10:27:48,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:48,047 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 95 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:48,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 696 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:27:48,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2024-12-02 10:27:48,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2189. [2024-12-02 10:27:48,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2189 states, 1987 states have (on average 1.2833417211877203) internal successors, (2550), 2002 states have internal predecessors, (2550), 132 states have call successors, (132), 69 states have call predecessors, (132), 69 states have return successors, (132), 117 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 10:27:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2814 transitions. [2024-12-02 10:27:48,570 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2814 transitions. Word has length 140 [2024-12-02 10:27:48,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:48,570 INFO L471 AbstractCegarLoop]: Abstraction has 2189 states and 2814 transitions. [2024-12-02 10:27:48,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:48,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2814 transitions. [2024-12-02 10:27:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:48,572 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:48,572 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:48,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Ended with exit code 0 [2024-12-02 10:27:48,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:48,772 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:48,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash -61802081, now seen corresponding path program 1 times [2024-12-02 10:27:48,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:48,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589788443] [2024-12-02 10:27:48,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:48,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:48,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:48,774 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:48,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2024-12-02 10:27:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:49,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:27:49,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:49,261 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:49,261 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:49,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589788443] [2024-12-02 10:27:49,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589788443] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:49,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:49,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:27:49,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340118585] [2024-12-02 10:27:49,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:49,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:27:49,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:49,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:27:49,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:27:49,262 INFO L87 Difference]: Start difference. First operand 2189 states and 2814 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:50,380 INFO L93 Difference]: Finished difference Result 4436 states and 5659 transitions. [2024-12-02 10:27:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:27:50,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:27:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:50,384 INFO L225 Difference]: With dead ends: 4436 [2024-12-02 10:27:50,384 INFO L226 Difference]: Without dead ends: 2250 [2024-12-02 10:27:50,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:27:50,386 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 81 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:50,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 853 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:27:50,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2024-12-02 10:27:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 1971. [2024-12-02 10:27:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1791 states have (on average 1.269681742043551) internal successors, (2274), 1803 states have internal predecessors, (2274), 117 states have call successors, (117), 62 states have call predecessors, (117), 62 states have return successors, (117), 105 states have call predecessors, (117), 117 states have call successors, (117) [2024-12-02 10:27:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 2508 transitions. [2024-12-02 10:27:50,865 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 2508 transitions. Word has length 140 [2024-12-02 10:27:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:50,865 INFO L471 AbstractCegarLoop]: Abstraction has 1971 states and 2508 transitions. [2024-12-02 10:27:50,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 2508 transitions. [2024-12-02 10:27:50,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:50,866 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:50,866 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:50,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Ended with exit code 0 [2024-12-02 10:27:51,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:51,067 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:51,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:51,067 INFO L85 PathProgramCache]: Analyzing trace with hash -879450531, now seen corresponding path program 1 times [2024-12-02 10:27:51,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:51,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569383026] [2024-12-02 10:27:51,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:51,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:51,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:51,069 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:51,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2024-12-02 10:27:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:51,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:27:51,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:51,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:51,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 10:27:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:51,514 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:51,514 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569383026] [2024-12-02 10:27:51,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569383026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:51,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:51,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:51,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674495290] [2024-12-02 10:27:51,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:51,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:51,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:51,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:51,515 INFO L87 Difference]: Start difference. First operand 1971 states and 2508 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:52,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:52,616 INFO L93 Difference]: Finished difference Result 4445 states and 5609 transitions. [2024-12-02 10:27:52,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:27:52,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:27:52,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:52,620 INFO L225 Difference]: With dead ends: 4445 [2024-12-02 10:27:52,620 INFO L226 Difference]: Without dead ends: 2477 [2024-12-02 10:27:52,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:52,622 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 84 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:52,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 748 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:27:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2024-12-02 10:27:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2016. [2024-12-02 10:27:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1836 states have (on average 1.2630718954248366) internal successors, (2319), 1848 states have internal predecessors, (2319), 117 states have call successors, (117), 62 states have call predecessors, (117), 62 states have return successors, (117), 105 states have call predecessors, (117), 117 states have call successors, (117) [2024-12-02 10:27:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2553 transitions. [2024-12-02 10:27:53,095 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2553 transitions. Word has length 140 [2024-12-02 10:27:53,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:53,095 INFO L471 AbstractCegarLoop]: Abstraction has 2016 states and 2553 transitions. [2024-12-02 10:27:53,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2553 transitions. [2024-12-02 10:27:53,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:27:53,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:53,096 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:53,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2024-12-02 10:27:53,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:53,297 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:53,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:53,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2106259293, now seen corresponding path program 1 times [2024-12-02 10:27:53,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:27:53,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783500658] [2024-12-02 10:27:53,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:53,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:27:53,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:27:53,299 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:27:53,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2024-12-02 10:27:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:53,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:27:53,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:53,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:27:55,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:55,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 33 [2024-12-02 10:27:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:55,834 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:55,834 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:27:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783500658] [2024-12-02 10:27:55,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783500658] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:55,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:55,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:27:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666068324] [2024-12-02 10:27:55,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:55,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:27:55,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:27:55,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:27:55,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:27:55,835 INFO L87 Difference]: Start difference. First operand 2016 states and 2553 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:58,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:28:00,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:28:06,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:28:11,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:28:12,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:12,798 INFO L93 Difference]: Finished difference Result 4960 states and 6181 transitions. [2024-12-02 10:28:12,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:28:12,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:12,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:12,803 INFO L225 Difference]: With dead ends: 4960 [2024-12-02 10:28:12,803 INFO L226 Difference]: Without dead ends: 2947 [2024-12-02 10:28:12,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:28:12,805 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 460 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:12,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1724 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2024-12-02 10:28:12,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2024-12-02 10:28:13,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2246. [2024-12-02 10:28:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 2023 states have (on average 1.259515570934256) internal successors, (2548), 2038 states have internal predecessors, (2548), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:13,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2836 transitions. [2024-12-02 10:28:13,418 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2836 transitions. Word has length 140 [2024-12-02 10:28:13,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:13,418 INFO L471 AbstractCegarLoop]: Abstraction has 2246 states and 2836 transitions. [2024-12-02 10:28:13,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:13,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2836 transitions. [2024-12-02 10:28:13,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:13,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:13,419 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:13,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Ended with exit code 0 [2024-12-02 10:28:13,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:13,620 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:13,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:13,620 INFO L85 PathProgramCache]: Analyzing trace with hash -265479969, now seen corresponding path program 1 times [2024-12-02 10:28:13,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:13,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309057340] [2024-12-02 10:28:13,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:13,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:13,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:13,622 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:13,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2024-12-02 10:28:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:13,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:28:13,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:14,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:28:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:14,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:14,362 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:14,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309057340] [2024-12-02 10:28:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309057340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:14,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:14,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:28:14,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587506723] [2024-12-02 10:28:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:14,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:28:14,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:14,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:28:14,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:28:14,362 INFO L87 Difference]: Start difference. First operand 2246 states and 2836 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:17,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:17,272 INFO L93 Difference]: Finished difference Result 4810 states and 6022 transitions. [2024-12-02 10:28:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:28:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:17,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:17,276 INFO L225 Difference]: With dead ends: 4810 [2024-12-02 10:28:17,276 INFO L226 Difference]: Without dead ends: 2705 [2024-12-02 10:28:17,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:28:17,278 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 465 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:17,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1175 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 10:28:17,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-12-02 10:28:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2202. [2024-12-02 10:28:17,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1979 states have (on average 1.255179383527034) internal successors, (2484), 1994 states have internal predecessors, (2484), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2772 transitions. [2024-12-02 10:28:17,877 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2772 transitions. Word has length 140 [2024-12-02 10:28:17,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:17,878 INFO L471 AbstractCegarLoop]: Abstraction has 2202 states and 2772 transitions. [2024-12-02 10:28:17,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:17,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2772 transitions. [2024-12-02 10:28:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:17,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:17,879 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:17,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Ended with exit code 0 [2024-12-02 10:28:18,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:18,079 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:18,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:18,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2025527139, now seen corresponding path program 1 times [2024-12-02 10:28:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:18,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652961688] [2024-12-02 10:28:18,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:18,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:18,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:18,081 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:18,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2024-12-02 10:28:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:18,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:28:18,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:18,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:28:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:18,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:18,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:18,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652961688] [2024-12-02 10:28:18,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652961688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:18,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:18,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:28:18,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446264440] [2024-12-02 10:28:18,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:18,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:28:18,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:18,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:28:18,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:28:18,840 INFO L87 Difference]: Start difference. First operand 2202 states and 2772 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:22,334 INFO L93 Difference]: Finished difference Result 5006 states and 6249 transitions. [2024-12-02 10:28:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:28:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:22,339 INFO L225 Difference]: With dead ends: 5006 [2024-12-02 10:28:22,339 INFO L226 Difference]: Without dead ends: 2945 [2024-12-02 10:28:22,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:28:22,340 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 426 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:22,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1391 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 10:28:22,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2024-12-02 10:28:22,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2206. [2024-12-02 10:28:22,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1983 states have (on average 1.254664649520928) internal successors, (2488), 1998 states have internal predecessors, (2488), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 2776 transitions. [2024-12-02 10:28:22,936 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 2776 transitions. Word has length 140 [2024-12-02 10:28:22,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:22,936 INFO L471 AbstractCegarLoop]: Abstraction has 2206 states and 2776 transitions. [2024-12-02 10:28:22,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 2776 transitions. [2024-12-02 10:28:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:22,938 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:22,938 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:22,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Ended with exit code 0 [2024-12-02 10:28:23,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:23,138 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:23,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:23,138 INFO L85 PathProgramCache]: Analyzing trace with hash -102299105, now seen corresponding path program 1 times [2024-12-02 10:28:23,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:23,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217623655] [2024-12-02 10:28:23,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:23,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:23,140 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:23,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2024-12-02 10:28:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:23,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:28:23,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:23,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:28:23,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:23,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 34 [2024-12-02 10:28:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:23,836 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:23,837 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:23,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217623655] [2024-12-02 10:28:23,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217623655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:23,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:23,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:28:23,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371583156] [2024-12-02 10:28:23,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:23,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:28:23,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:23,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:28:23,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:28:23,838 INFO L87 Difference]: Start difference. First operand 2206 states and 2776 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:27,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:27,207 INFO L93 Difference]: Finished difference Result 4943 states and 6165 transitions. [2024-12-02 10:28:27,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:28:27,208 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:27,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:27,212 INFO L225 Difference]: With dead ends: 4943 [2024-12-02 10:28:27,212 INFO L226 Difference]: Without dead ends: 2878 [2024-12-02 10:28:27,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:28:27,214 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 414 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:27,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 1413 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 10:28:27,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2024-12-02 10:28:27,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2208. [2024-12-02 10:28:27,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1985 states have (on average 1.2544080604534005) internal successors, (2490), 2000 states have internal predecessors, (2490), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2778 transitions. [2024-12-02 10:28:27,814 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2778 transitions. Word has length 140 [2024-12-02 10:28:27,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:27,814 INFO L471 AbstractCegarLoop]: Abstraction has 2208 states and 2778 transitions. [2024-12-02 10:28:27,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2778 transitions. [2024-12-02 10:28:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:27,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:27,816 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:27,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Ended with exit code 0 [2024-12-02 10:28:28,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:28,016 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:28,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:28,016 INFO L85 PathProgramCache]: Analyzing trace with hash 252471968, now seen corresponding path program 1 times [2024-12-02 10:28:28,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:28,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079459021] [2024-12-02 10:28:28,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:28,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:28,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:28,018 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:28,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2024-12-02 10:28:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:28,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 10:28:28,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:28,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:28:28,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:28:28,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:28:28,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:28:28,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:28,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 64 [2024-12-02 10:28:29,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:29,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 55 [2024-12-02 10:28:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:28:29,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:29,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:29,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079459021] [2024-12-02 10:28:29,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079459021] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:29,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:29,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:28:29,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017650832] [2024-12-02 10:28:29,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:29,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:28:29,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:29,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:28:29,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:28:29,360 INFO L87 Difference]: Start difference. First operand 2208 states and 2778 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:28:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:34,124 INFO L93 Difference]: Finished difference Result 5418 states and 6720 transitions. [2024-12-02 10:28:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:28:34,125 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-12-02 10:28:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:34,129 INFO L225 Difference]: With dead ends: 5418 [2024-12-02 10:28:34,129 INFO L226 Difference]: Without dead ends: 3351 [2024-12-02 10:28:34,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:28:34,131 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 644 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:34,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1405 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 10:28:34,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2024-12-02 10:28:34,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 2228. [2024-12-02 10:28:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2005 states have (on average 1.253865336658354) internal successors, (2514), 2020 states have internal predecessors, (2514), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2802 transitions. [2024-12-02 10:28:34,746 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2802 transitions. Word has length 140 [2024-12-02 10:28:34,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:34,746 INFO L471 AbstractCegarLoop]: Abstraction has 2228 states and 2802 transitions. [2024-12-02 10:28:34,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:28:34,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2802 transitions. [2024-12-02 10:28:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:34,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:34,747 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:34,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Ended with exit code 0 [2024-12-02 10:28:34,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:34,948 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:34,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:34,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1273430880, now seen corresponding path program 1 times [2024-12-02 10:28:34,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:34,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229486666] [2024-12-02 10:28:34,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:34,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:34,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:34,950 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:34,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2024-12-02 10:28:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:35,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:28:35,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:35,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:28:35,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:28:35,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:28:35,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:28:35,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:35,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 43 [2024-12-02 10:28:35,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:35,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 36 [2024-12-02 10:28:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:35,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:35,811 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:35,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229486666] [2024-12-02 10:28:35,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229486666] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:35,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:35,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:28:35,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763164995] [2024-12-02 10:28:35,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:35,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:28:35,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:35,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:28:35,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:28:35,812 INFO L87 Difference]: Start difference. First operand 2228 states and 2802 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:39,047 INFO L93 Difference]: Finished difference Result 5124 states and 6373 transitions. [2024-12-02 10:28:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:28:39,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:39,052 INFO L225 Difference]: With dead ends: 5124 [2024-12-02 10:28:39,052 INFO L226 Difference]: Without dead ends: 3037 [2024-12-02 10:28:39,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:28:39,054 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 297 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:39,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 993 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 10:28:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2024-12-02 10:28:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2226. [2024-12-02 10:28:39,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2003 states have (on average 1.2536195706440338) internal successors, (2511), 2018 states have internal predecessors, (2511), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 2799 transitions. [2024-12-02 10:28:39,691 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 2799 transitions. Word has length 140 [2024-12-02 10:28:39,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:39,691 INFO L471 AbstractCegarLoop]: Abstraction has 2226 states and 2799 transitions. [2024-12-02 10:28:39,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:39,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 2799 transitions. [2024-12-02 10:28:39,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:39,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:39,692 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:39,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Ended with exit code 0 [2024-12-02 10:28:39,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:39,893 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:39,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:39,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1821875426, now seen corresponding path program 1 times [2024-12-02 10:28:39,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:39,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511608625] [2024-12-02 10:28:39,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:39,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:39,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:39,895 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:39,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2024-12-02 10:28:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:40,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:28:40,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:40,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:40,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 10:28:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:40,326 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:40,326 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:40,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511608625] [2024-12-02 10:28:40,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511608625] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:40,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:40,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:28:40,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403469135] [2024-12-02 10:28:40,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:40,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:28:40,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:40,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:28:40,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:28:40,328 INFO L87 Difference]: Start difference. First operand 2226 states and 2799 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:41,808 INFO L93 Difference]: Finished difference Result 5765 states and 7262 transitions. [2024-12-02 10:28:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:28:41,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:41,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:41,813 INFO L225 Difference]: With dead ends: 5765 [2024-12-02 10:28:41,813 INFO L226 Difference]: Without dead ends: 3680 [2024-12-02 10:28:41,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:28:41,815 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 107 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:41,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 634 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:28:41,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3680 states. [2024-12-02 10:28:42,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3680 to 2355. [2024-12-02 10:28:42,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2132 states have (on average 1.2621951219512195) internal successors, (2691), 2147 states have internal predecessors, (2691), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 2979 transitions. [2024-12-02 10:28:42,477 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 2979 transitions. Word has length 140 [2024-12-02 10:28:42,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:42,478 INFO L471 AbstractCegarLoop]: Abstraction has 2355 states and 2979 transitions. [2024-12-02 10:28:42,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:42,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 2979 transitions. [2024-12-02 10:28:42,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:42,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:42,480 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:42,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Ended with exit code 0 [2024-12-02 10:28:42,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:42,681 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:42,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:42,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1681326816, now seen corresponding path program 1 times [2024-12-02 10:28:42,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:42,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997075103] [2024-12-02 10:28:42,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:42,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:42,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:42,683 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:42,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2024-12-02 10:28:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:43,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 10:28:43,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:43,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:28:43,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:28:43,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:28:43,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2024-12-02 10:28:44,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:44,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 77 [2024-12-02 10:28:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:28:44,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:44,315 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:44,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997075103] [2024-12-02 10:28:44,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997075103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:44,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:44,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 10:28:44,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231621810] [2024-12-02 10:28:44,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:44,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:28:44,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:44,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:28:44,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:28:44,316 INFO L87 Difference]: Start difference. First operand 2355 states and 2979 transitions. Second operand has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:28:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:50,551 INFO L93 Difference]: Finished difference Result 5541 states and 6920 transitions. [2024-12-02 10:28:50,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 10:28:50,552 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-12-02 10:28:50,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:50,556 INFO L225 Difference]: With dead ends: 5541 [2024-12-02 10:28:50,556 INFO L226 Difference]: Without dead ends: 3327 [2024-12-02 10:28:50,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:28:50,558 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 584 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:50,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1838 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 10:28:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-12-02 10:28:51,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 2346. [2024-12-02 10:28:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 2123 states have (on average 1.2614225153085257) internal successors, (2678), 2138 states have internal predecessors, (2678), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:51,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 2966 transitions. [2024-12-02 10:28:51,204 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 2966 transitions. Word has length 140 [2024-12-02 10:28:51,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:51,204 INFO L471 AbstractCegarLoop]: Abstraction has 2346 states and 2966 transitions. [2024-12-02 10:28:51,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:28:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 2966 transitions. [2024-12-02 10:28:51,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:51,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:51,206 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:51,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Ended with exit code 0 [2024-12-02 10:28:51,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:51,406 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:51,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:51,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1529176481, now seen corresponding path program 1 times [2024-12-02 10:28:51,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:51,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796927818] [2024-12-02 10:28:51,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:51,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:51,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:51,408 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:51,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2024-12-02 10:28:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:51,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 10:28:51,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:51,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:28:52,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:52,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:28:52,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:52,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 50 [2024-12-02 10:28:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:28:52,820 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:28:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:53,128 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:53,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796927818] [2024-12-02 10:28:53,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796927818] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:28:53,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:28:53,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:28:53,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862393316] [2024-12-02 10:28:53,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:53,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:28:53,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:53,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:28:53,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:28:53,130 INFO L87 Difference]: Start difference. First operand 2346 states and 2966 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:54,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:54,635 INFO L93 Difference]: Finished difference Result 5790 states and 7328 transitions. [2024-12-02 10:28:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:28:54,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:54,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:54,640 INFO L225 Difference]: With dead ends: 5790 [2024-12-02 10:28:54,641 INFO L226 Difference]: Without dead ends: 3585 [2024-12-02 10:28:54,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:28:54,642 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 304 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:54,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 677 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:28:54,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2024-12-02 10:28:55,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3144. [2024-12-02 10:28:55,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 2865 states have (on average 1.2719022687609074) internal successors, (3644), 2886 states have internal predecessors, (3644), 180 states have call successors, (180), 98 states have call predecessors, (180), 98 states have return successors, (180), 159 states have call predecessors, (180), 180 states have call successors, (180) [2024-12-02 10:28:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 4004 transitions. [2024-12-02 10:28:55,439 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 4004 transitions. Word has length 140 [2024-12-02 10:28:55,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:55,439 INFO L471 AbstractCegarLoop]: Abstraction has 3144 states and 4004 transitions. [2024-12-02 10:28:55,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:55,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 4004 transitions. [2024-12-02 10:28:55,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:55,441 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:55,441 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:55,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Ended with exit code 0 [2024-12-02 10:28:55,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:55,642 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:55,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:55,642 INFO L85 PathProgramCache]: Analyzing trace with hash 394051553, now seen corresponding path program 1 times [2024-12-02 10:28:55,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:55,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671284949] [2024-12-02 10:28:55,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:55,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:55,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:55,644 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:55,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2024-12-02 10:28:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:56,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 10:28:56,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:56,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:28:56,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:56,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:28:56,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:28:56,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 51 [2024-12-02 10:28:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:28:57,056 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:28:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:57,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:28:57,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671284949] [2024-12-02 10:28:57,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671284949] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:28:57,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:28:57,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:28:57,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054386291] [2024-12-02 10:28:57,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:57,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:28:57,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:28:57,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:28:57,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:28:57,369 INFO L87 Difference]: Start difference. First operand 3144 states and 4004 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:58,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:58,804 INFO L93 Difference]: Finished difference Result 6303 states and 7974 transitions. [2024-12-02 10:28:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:28:58,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:28:58,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:58,809 INFO L225 Difference]: With dead ends: 6303 [2024-12-02 10:28:58,809 INFO L226 Difference]: Without dead ends: 3300 [2024-12-02 10:28:58,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:28:58,811 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 282 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:58,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 697 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:28:58,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2024-12-02 10:28:59,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 2486. [2024-12-02 10:28:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2263 states have (on average 1.2691117984975695) internal successors, (2872), 2278 states have internal predecessors, (2872), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:28:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3160 transitions. [2024-12-02 10:28:59,463 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3160 transitions. Word has length 140 [2024-12-02 10:28:59,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:59,464 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 3160 transitions. [2024-12-02 10:28:59,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:28:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3160 transitions. [2024-12-02 10:28:59,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:28:59,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:59,465 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:59,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Ended with exit code 0 [2024-12-02 10:28:59,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:59,666 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:59,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1365995617, now seen corresponding path program 1 times [2024-12-02 10:28:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:28:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137862095] [2024-12-02 10:28:59,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:59,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:28:59,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:28:59,668 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:28:59,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2024-12-02 10:29:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:00,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 10:29:00,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:00,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:29:00,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:00,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 10:29:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:29:01,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:29:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:01,481 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137862095] [2024-12-02 10:29:01,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137862095] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:29:01,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:29:01,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-12-02 10:29:01,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324666698] [2024-12-02 10:29:01,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:01,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:29:01,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:01,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:29:01,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:29:01,481 INFO L87 Difference]: Start difference. First operand 2486 states and 3160 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:03,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:03,122 INFO L93 Difference]: Finished difference Result 5888 states and 7461 transitions. [2024-12-02 10:29:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:29:03,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:29:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:03,127 INFO L225 Difference]: With dead ends: 5888 [2024-12-02 10:29:03,127 INFO L226 Difference]: Without dead ends: 3543 [2024-12-02 10:29:03,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:29:03,129 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 107 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:03,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 855 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:29:03,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2024-12-02 10:29:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 2504. [2024-12-02 10:29:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2504 states, 2281 states have (on average 1.269618588338448) internal successors, (2896), 2296 states have internal predecessors, (2896), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:03,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 3184 transitions. [2024-12-02 10:29:03,767 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 3184 transitions. Word has length 140 [2024-12-02 10:29:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:03,767 INFO L471 AbstractCegarLoop]: Abstraction has 2504 states and 3184 transitions. [2024-12-02 10:29:03,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 3184 transitions. [2024-12-02 10:29:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:29:03,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:03,769 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:03,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Ended with exit code 0 [2024-12-02 10:29:03,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:03,970 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:03,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:03,970 INFO L85 PathProgramCache]: Analyzing trace with hash 557232417, now seen corresponding path program 1 times [2024-12-02 10:29:03,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:03,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717554712] [2024-12-02 10:29:03,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:03,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:03,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:03,972 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:03,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2024-12-02 10:29:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:04,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 10:29:04,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:04,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:29:04,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:04,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 10:29:05,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:05,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 45 [2024-12-02 10:29:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:29:05,380 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:29:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:05,678 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:05,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717554712] [2024-12-02 10:29:05,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717554712] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:29:05,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:29:05,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:29:05,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639366035] [2024-12-02 10:29:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:05,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:29:05,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:05,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:29:05,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:29:05,679 INFO L87 Difference]: Start difference. First operand 2504 states and 3184 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:07,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:07,120 INFO L93 Difference]: Finished difference Result 5689 states and 7194 transitions. [2024-12-02 10:29:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:29:07,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2024-12-02 10:29:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:07,125 INFO L225 Difference]: With dead ends: 5689 [2024-12-02 10:29:07,125 INFO L226 Difference]: Without dead ends: 3326 [2024-12-02 10:29:07,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:29:07,127 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 198 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:07,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 748 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:29:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2024-12-02 10:29:07,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 2504. [2024-12-02 10:29:07,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2504 states, 2281 states have (on average 1.269618588338448) internal successors, (2896), 2296 states have internal predecessors, (2896), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 3184 transitions. [2024-12-02 10:29:07,799 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 3184 transitions. Word has length 140 [2024-12-02 10:29:07,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:07,799 INFO L471 AbstractCegarLoop]: Abstraction has 2504 states and 3184 transitions. [2024-12-02 10:29:07,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:07,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 3184 transitions. [2024-12-02 10:29:07,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:07,801 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:07,801 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:07,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Ended with exit code 0 [2024-12-02 10:29:08,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:08,001 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:08,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:08,002 INFO L85 PathProgramCache]: Analyzing trace with hash -765852380, now seen corresponding path program 1 times [2024-12-02 10:29:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:08,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519944613] [2024-12-02 10:29:08,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:08,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:08,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:08,003 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:08,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2024-12-02 10:29:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:08,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:29:08,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:08,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:08,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2024-12-02 10:29:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:08,484 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:08,484 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:08,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519944613] [2024-12-02 10:29:08,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519944613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:08,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:08,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:29:08,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530124409] [2024-12-02 10:29:08,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:08,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:29:08,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:08,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:29:08,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:29:08,485 INFO L87 Difference]: Start difference. First operand 2504 states and 3184 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:10,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:10,130 INFO L93 Difference]: Finished difference Result 5891 states and 7469 transitions. [2024-12-02 10:29:10,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:29:10,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:29:10,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:10,136 INFO L225 Difference]: With dead ends: 5891 [2024-12-02 10:29:10,136 INFO L226 Difference]: Without dead ends: 3528 [2024-12-02 10:29:10,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:29:10,138 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 94 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:10,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1067 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:29:10,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2024-12-02 10:29:10,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 2906. [2024-12-02 10:29:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2627 states have (on average 1.2596117244004568) internal successors, (3309), 2648 states have internal predecessors, (3309), 180 states have call successors, (180), 98 states have call predecessors, (180), 98 states have return successors, (180), 159 states have call predecessors, (180), 180 states have call successors, (180) [2024-12-02 10:29:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 3669 transitions. [2024-12-02 10:29:10,981 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 3669 transitions. Word has length 142 [2024-12-02 10:29:10,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:10,981 INFO L471 AbstractCegarLoop]: Abstraction has 2906 states and 3669 transitions. [2024-12-02 10:29:10,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:10,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 3669 transitions. [2024-12-02 10:29:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:10,982 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:10,983 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:10,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Ended with exit code 0 [2024-12-02 10:29:11,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:11,183 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:11,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:11,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2045716058, now seen corresponding path program 1 times [2024-12-02 10:29:11,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:11,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138269459] [2024-12-02 10:29:11,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:11,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:11,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:11,185 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:11,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2024-12-02 10:29:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:11,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:29:11,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:11,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:11,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 10:29:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:11,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:11,635 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138269459] [2024-12-02 10:29:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138269459] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:11,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:11,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:29:11,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310287599] [2024-12-02 10:29:11,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:11,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:29:11,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:11,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:29:11,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:29:11,636 INFO L87 Difference]: Start difference. First operand 2906 states and 3669 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:12,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:12,984 INFO L93 Difference]: Finished difference Result 5995 states and 7543 transitions. [2024-12-02 10:29:12,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:29:12,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:29:12,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:12,990 INFO L225 Difference]: With dead ends: 5995 [2024-12-02 10:29:12,990 INFO L226 Difference]: Without dead ends: 3230 [2024-12-02 10:29:12,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:29:12,991 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 88 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:12,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 728 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:29:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2024-12-02 10:29:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2187. [2024-12-02 10:29:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 1964 states have (on average 1.235234215885947) internal successors, (2426), 1979 states have internal predecessors, (2426), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 2714 transitions. [2024-12-02 10:29:13,656 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 2714 transitions. Word has length 142 [2024-12-02 10:29:13,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:13,657 INFO L471 AbstractCegarLoop]: Abstraction has 2187 states and 2714 transitions. [2024-12-02 10:29:13,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:13,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 2714 transitions. [2024-12-02 10:29:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:13,658 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:13,658 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:13,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Ended with exit code 0 [2024-12-02 10:29:13,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:13,859 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:13,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1431602788, now seen corresponding path program 1 times [2024-12-02 10:29:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:13,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088953499] [2024-12-02 10:29:13,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:13,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:13,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:13,861 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:13,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2024-12-02 10:29:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:14,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:29:14,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:14,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:14,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 18 [2024-12-02 10:29:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:14,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:14,350 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:14,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088953499] [2024-12-02 10:29:14,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088953499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:14,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:14,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:29:14,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760789855] [2024-12-02 10:29:14,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:14,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:29:14,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:14,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:29:14,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:29:14,351 INFO L87 Difference]: Start difference. First operand 2187 states and 2714 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:15,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:15,797 INFO L93 Difference]: Finished difference Result 4901 states and 6069 transitions. [2024-12-02 10:29:15,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:29:15,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:29:15,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:15,802 INFO L225 Difference]: With dead ends: 4901 [2024-12-02 10:29:15,802 INFO L226 Difference]: Without dead ends: 2855 [2024-12-02 10:29:15,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:29:15,804 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 87 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:15,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 989 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:29:15,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2024-12-02 10:29:16,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2139. [2024-12-02 10:29:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 1916 states have (on average 1.2239039665970772) internal successors, (2345), 1931 states have internal predecessors, (2345), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:16,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2633 transitions. [2024-12-02 10:29:16,470 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2633 transitions. Word has length 142 [2024-12-02 10:29:16,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:16,471 INFO L471 AbstractCegarLoop]: Abstraction has 2139 states and 2633 transitions. [2024-12-02 10:29:16,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:16,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2633 transitions. [2024-12-02 10:29:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:16,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:16,472 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:16,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Ended with exit code 0 [2024-12-02 10:29:16,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:16,672 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:16,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:16,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1461696611, now seen corresponding path program 1 times [2024-12-02 10:29:16,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:16,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217270766] [2024-12-02 10:29:16,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:16,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:16,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:16,674 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:16,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2024-12-02 10:29:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:17,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:29:17,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:17,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:29:17,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:29:17,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:29:17,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:17,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 42 [2024-12-02 10:29:19,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:19,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 33 [2024-12-02 10:29:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:19,513 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:19,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:19,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217270766] [2024-12-02 10:29:19,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217270766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:19,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:19,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:29:19,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561931369] [2024-12-02 10:29:19,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:19,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:29:19,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:19,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:29:19,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:29:19,514 INFO L87 Difference]: Start difference. First operand 2139 states and 2633 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:22,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:29:27,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:29:32,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:29:38,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:38,684 INFO L93 Difference]: Finished difference Result 4672 states and 5716 transitions. [2024-12-02 10:29:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:29:38,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:29:38,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:38,689 INFO L225 Difference]: With dead ends: 4672 [2024-12-02 10:29:38,689 INFO L226 Difference]: Without dead ends: 2674 [2024-12-02 10:29:38,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:29:38,691 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 476 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:38,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1621 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2024-12-02 10:29:38,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2024-12-02 10:29:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2141. [2024-12-02 10:29:39,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1918 states have (on average 1.2236704900938478) internal successors, (2347), 1933 states have internal predecessors, (2347), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 2635 transitions. [2024-12-02 10:29:39,358 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 2635 transitions. Word has length 142 [2024-12-02 10:29:39,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:39,359 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 2635 transitions. [2024-12-02 10:29:39,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 2635 transitions. [2024-12-02 10:29:39,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:39,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:39,360 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:39,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Ended with exit code 0 [2024-12-02 10:29:39,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:39,560 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:39,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:39,561 INFO L85 PathProgramCache]: Analyzing trace with hash 92203427, now seen corresponding path program 1 times [2024-12-02 10:29:39,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:39,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782333508] [2024-12-02 10:29:39,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:39,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:39,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:39,563 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:39,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2024-12-02 10:29:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:39,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:29:39,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:39,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:39,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 10:29:39,995 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:39,995 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:39,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782333508] [2024-12-02 10:29:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782333508] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:39,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:39,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:29:39,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758118347] [2024-12-02 10:29:39,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:39,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:29:39,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:39,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:29:39,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:29:39,997 INFO L87 Difference]: Start difference. First operand 2141 states and 2635 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:41,363 INFO L93 Difference]: Finished difference Result 4787 states and 5858 transitions. [2024-12-02 10:29:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:29:41,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:29:41,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:41,369 INFO L225 Difference]: With dead ends: 4787 [2024-12-02 10:29:41,369 INFO L226 Difference]: Without dead ends: 2787 [2024-12-02 10:29:41,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:29:41,370 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 92 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:41,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 600 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:29:41,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2024-12-02 10:29:42,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2141. [2024-12-02 10:29:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1918 states have (on average 1.2148070907194994) internal successors, (2330), 1933 states have internal predecessors, (2330), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 2618 transitions. [2024-12-02 10:29:42,037 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 2618 transitions. Word has length 142 [2024-12-02 10:29:42,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:42,037 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 2618 transitions. [2024-12-02 10:29:42,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 2618 transitions. [2024-12-02 10:29:42,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:42,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:42,038 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:42,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Ended with exit code 0 [2024-12-02 10:29:42,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:42,239 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:42,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash -725445023, now seen corresponding path program 1 times [2024-12-02 10:29:42,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:42,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548743065] [2024-12-02 10:29:42,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:42,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:42,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:42,241 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:42,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2024-12-02 10:29:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:42,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:29:42,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:42,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:42,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 10:29:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:42,704 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:42,704 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:42,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548743065] [2024-12-02 10:29:42,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548743065] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:42,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:42,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:29:42,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032518039] [2024-12-02 10:29:42,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:42,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:29:42,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:42,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:29:42,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:29:42,705 INFO L87 Difference]: Start difference. First operand 2141 states and 2618 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:44,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:44,167 INFO L93 Difference]: Finished difference Result 4787 states and 5824 transitions. [2024-12-02 10:29:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:29:44,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:29:44,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:44,172 INFO L225 Difference]: With dead ends: 4787 [2024-12-02 10:29:44,173 INFO L226 Difference]: Without dead ends: 2787 [2024-12-02 10:29:44,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:29:44,174 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 86 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:44,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 602 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:29:44,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2024-12-02 10:29:44,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2157. [2024-12-02 10:29:44,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 1934 states have (on average 1.2083764219234747) internal successors, (2337), 1949 states have internal predecessors, (2337), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:44,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 2625 transitions. [2024-12-02 10:29:44,843 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 2625 transitions. Word has length 142 [2024-12-02 10:29:44,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:44,843 INFO L471 AbstractCegarLoop]: Abstraction has 2157 states and 2625 transitions. [2024-12-02 10:29:44,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:29:44,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 2625 transitions. [2024-12-02 10:29:44,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:44,845 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:44,845 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:44,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Forceful destruction successful, exit code 0 [2024-12-02 10:29:45,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:45,045 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:45,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:45,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2005308701, now seen corresponding path program 1 times [2024-12-02 10:29:45,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:45,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210256727] [2024-12-02 10:29:45,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:45,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:45,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:45,047 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:45,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2024-12-02 10:29:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:45,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 10:29:45,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:45,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:29:45,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:29:45,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:29:45,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:29:46,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:46,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 74 [2024-12-02 10:29:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:29:46,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:46,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:46,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210256727] [2024-12-02 10:29:46,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210256727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:46,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:46,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:29:46,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069301150] [2024-12-02 10:29:46,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:46,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:29:46,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:46,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:29:46,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:29:46,440 INFO L87 Difference]: Start difference. First operand 2157 states and 2625 transitions. Second operand has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:29:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:50,942 INFO L93 Difference]: Finished difference Result 4636 states and 5615 transitions. [2024-12-02 10:29:50,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:29:50,943 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-12-02 10:29:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:50,948 INFO L225 Difference]: With dead ends: 4636 [2024-12-02 10:29:50,948 INFO L226 Difference]: Without dead ends: 2620 [2024-12-02 10:29:50,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:29:50,949 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 612 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:50,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1150 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 10:29:50,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2024-12-02 10:29:51,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2139. [2024-12-02 10:29:51,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 1916 states have (on average 1.2082463465553235) internal successors, (2315), 1931 states have internal predecessors, (2315), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:29:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2603 transitions. [2024-12-02 10:29:51,632 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2603 transitions. Word has length 142 [2024-12-02 10:29:51,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:51,632 INFO L471 AbstractCegarLoop]: Abstraction has 2139 states and 2603 transitions. [2024-12-02 10:29:51,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:29:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2603 transitions. [2024-12-02 10:29:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:29:51,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:51,633 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:51,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Ended with exit code 0 [2024-12-02 10:29:51,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:51,834 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:51,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:51,834 INFO L85 PathProgramCache]: Analyzing trace with hash -421155613, now seen corresponding path program 1 times [2024-12-02 10:29:51,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:29:51,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535262277] [2024-12-02 10:29:51,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:51,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:29:51,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:29:51,836 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:29:51,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2024-12-02 10:29:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:52,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:29:52,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:52,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:29:52,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:29:52,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:29:53,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:29:53,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 45 [2024-12-02 10:29:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-02 10:29:53,765 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:53,765 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:29:53,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535262277] [2024-12-02 10:29:53,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535262277] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:53,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:29:53,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:29:53,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143013510] [2024-12-02 10:29:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:53,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:29:53,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:29:53,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:29:53,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:29:53,765 INFO L87 Difference]: Start difference. First operand 2139 states and 2603 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:30:00,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:30:05,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:30:08,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:30:11,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:30:15,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:30:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:15,742 INFO L93 Difference]: Finished difference Result 4885 states and 5903 transitions. [2024-12-02 10:30:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:30:15,743 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 142 [2024-12-02 10:30:15,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:15,747 INFO L225 Difference]: With dead ends: 4885 [2024-12-02 10:30:15,748 INFO L226 Difference]: Without dead ends: 2887 [2024-12-02 10:30:15,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:30:15,749 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 852 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:15,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1293 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1225 Invalid, 1 Unknown, 0 Unchecked, 20.3s Time] [2024-12-02 10:30:15,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2024-12-02 10:30:16,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2191. [2024-12-02 10:30:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1968 states have (on average 1.2068089430894309) internal successors, (2375), 1983 states have internal predecessors, (2375), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:30:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2663 transitions. [2024-12-02 10:30:16,454 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2663 transitions. Word has length 142 [2024-12-02 10:30:16,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:16,454 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2663 transitions. [2024-12-02 10:30:16,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:30:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2663 transitions. [2024-12-02 10:30:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:30:16,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:16,456 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:16,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Ended with exit code 0 [2024-12-02 10:30:16,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:16,656 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:16,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:16,656 INFO L85 PathProgramCache]: Analyzing trace with hash 599803299, now seen corresponding path program 1 times [2024-12-02 10:30:16,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:30:16,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087537865] [2024-12-02 10:30:16,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:16,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:16,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:30:16,658 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:30:16,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2024-12-02 10:30:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:17,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 10:30:17,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:17,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:30:17,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:30:17,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 10:30:17,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:30:17,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:17,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 62 [2024-12-02 10:30:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 10:30:17,950 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:30:17,950 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:30:17,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087537865] [2024-12-02 10:30:17,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087537865] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:17,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:17,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:30:17,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755854805] [2024-12-02 10:30:17,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:17,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:30:17,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:30:17,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:30:17,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:30:17,952 INFO L87 Difference]: Start difference. First operand 2191 states and 2663 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:22,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:22,605 INFO L93 Difference]: Finished difference Result 4713 states and 5706 transitions. [2024-12-02 10:30:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:30:22,606 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-12-02 10:30:22,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:22,611 INFO L225 Difference]: With dead ends: 4713 [2024-12-02 10:30:22,611 INFO L226 Difference]: Without dead ends: 2663 [2024-12-02 10:30:22,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:30:22,613 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 709 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:22,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1218 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 10:30:22,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2024-12-02 10:30:23,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2137. [2024-12-02 10:30:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 1914 states have (on average 1.2063740856844305) internal successors, (2309), 1929 states have internal predecessors, (2309), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:30:23,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 2597 transitions. [2024-12-02 10:30:23,354 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 2597 transitions. Word has length 142 [2024-12-02 10:30:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:23,354 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 2597 transitions. [2024-12-02 10:30:23,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 2597 transitions. [2024-12-02 10:30:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:30:23,355 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:23,355 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:23,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (98)] Ended with exit code 0 [2024-12-02 10:30:23,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:23,555 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:23,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1172307677, now seen corresponding path program 1 times [2024-12-02 10:30:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:30:23,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189024606] [2024-12-02 10:30:23,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:23,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:23,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:30:23,558 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:30:23,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2024-12-02 10:30:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:24,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 10:30:24,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:24,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:30:24,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:30:24,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:30:24,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:24,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 71 [2024-12-02 10:30:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:30:24,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:30:24,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:30:24,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189024606] [2024-12-02 10:30:24,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189024606] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:24,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:24,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:30:24,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945977819] [2024-12-02 10:30:24,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:24,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:30:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:30:24,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:30:24,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:30:24,936 INFO L87 Difference]: Start difference. First operand 2137 states and 2597 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:30:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:29,260 INFO L93 Difference]: Finished difference Result 4792 states and 5781 transitions. [2024-12-02 10:30:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:30:29,261 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:30:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:29,266 INFO L225 Difference]: With dead ends: 4792 [2024-12-02 10:30:29,266 INFO L226 Difference]: Without dead ends: 2796 [2024-12-02 10:30:29,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:30:29,268 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 426 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:29,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1388 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 10:30:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2024-12-02 10:30:29,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2149. [2024-12-02 10:30:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 1926 states have (on average 1.2061266874350987) internal successors, (2323), 1941 states have internal predecessors, (2323), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:30:29,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 2611 transitions. [2024-12-02 10:30:29,996 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 2611 transitions. Word has length 142 [2024-12-02 10:30:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:29,997 INFO L471 AbstractCegarLoop]: Abstraction has 2149 states and 2611 transitions. [2024-12-02 10:30:29,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:30:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 2611 transitions. [2024-12-02 10:30:29,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:30:29,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:29,998 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:30,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Ended with exit code 0 [2024-12-02 10:30:30,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:30,198 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:30,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash -344345693, now seen corresponding path program 1 times [2024-12-02 10:30:30,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:30:30,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330602896] [2024-12-02 10:30:30,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:30,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:30,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:30:30,201 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:30:30,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2024-12-02 10:30:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:30,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:30:30,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:30,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:30:30,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:30:30,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 10:30:30,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:30:31,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:31,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 54 [2024-12-02 10:30:31,276 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:31,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 38 [2024-12-02 10:30:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 10:30:31,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:30:31,350 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:30:31,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330602896] [2024-12-02 10:30:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330602896] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:31,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:31,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:30:31,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891500607] [2024-12-02 10:30:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:31,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:30:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:30:31,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:30:31,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:30:31,351 INFO L87 Difference]: Start difference. First operand 2149 states and 2611 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:36,401 INFO L93 Difference]: Finished difference Result 4771 states and 5756 transitions. [2024-12-02 10:30:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:30:36,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-12-02 10:30:36,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:36,407 INFO L225 Difference]: With dead ends: 4771 [2024-12-02 10:30:36,407 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 10:30:36,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:30:36,408 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 672 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:36,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1427 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 10:30:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 10:30:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2151. [2024-12-02 10:30:37,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 1928 states have (on average 1.2059128630705394) internal successors, (2325), 1943 states have internal predecessors, (2325), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:30:37,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 2613 transitions. [2024-12-02 10:30:37,149 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 2613 transitions. Word has length 142 [2024-12-02 10:30:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:37,149 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 2613 transitions. [2024-12-02 10:30:37,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 2613 transitions. [2024-12-02 10:30:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:30:37,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:37,151 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:37,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (100)] Ended with exit code 0 [2024-12-02 10:30:37,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:37,351 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:37,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash -5847389, now seen corresponding path program 1 times [2024-12-02 10:30:37,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:30:37,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157011119] [2024-12-02 10:30:37,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:37,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:37,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:30:37,353 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:30:37,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2024-12-02 10:30:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:37,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:30:37,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:37,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:30:37,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:37,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 24 [2024-12-02 10:30:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:30:38,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:30:38,107 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:30:38,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157011119] [2024-12-02 10:30:38,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157011119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:38,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:38,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:30:38,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520871116] [2024-12-02 10:30:38,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:38,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:30:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:30:38,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:30:38,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:30:38,108 INFO L87 Difference]: Start difference. First operand 2151 states and 2613 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:30:43,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:43,128 INFO L93 Difference]: Finished difference Result 4832 states and 5829 transitions. [2024-12-02 10:30:43,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:30:43,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:30:43,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:43,135 INFO L225 Difference]: With dead ends: 4832 [2024-12-02 10:30:43,135 INFO L226 Difference]: Without dead ends: 2822 [2024-12-02 10:30:43,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:30:43,136 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 454 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:43,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1458 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 10:30:43,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2024-12-02 10:30:43,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2151. [2024-12-02 10:30:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 1928 states have (on average 1.204875518672199) internal successors, (2323), 1943 states have internal predecessors, (2323), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:30:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 2611 transitions. [2024-12-02 10:30:43,875 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 2611 transitions. Word has length 142 [2024-12-02 10:30:43,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:43,876 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 2611 transitions. [2024-12-02 10:30:43,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:30:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 2611 transitions. [2024-12-02 10:30:43,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:30:43,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:43,877 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:43,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (101)] Ended with exit code 0 [2024-12-02 10:30:44,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:44,077 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:44,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:44,078 INFO L85 PathProgramCache]: Analyzing trace with hash 16784865, now seen corresponding path program 1 times [2024-12-02 10:30:44,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:30:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244102799] [2024-12-02 10:30:44,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:44,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:44,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:30:44,080 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:30:44,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2024-12-02 10:30:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:44,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:30:44,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:44,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:30:44,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:44,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 24 [2024-12-02 10:30:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:30:44,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:30:44,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:30:44,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244102799] [2024-12-02 10:30:44,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244102799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:44,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:44,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:30:44,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180774761] [2024-12-02 10:30:44,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:44,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:30:44,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:30:44,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:30:44,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:30:44,899 INFO L87 Difference]: Start difference. First operand 2151 states and 2611 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:30:49,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:49,801 INFO L93 Difference]: Finished difference Result 4832 states and 5825 transitions. [2024-12-02 10:30:49,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:30:49,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:30:49,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:49,807 INFO L225 Difference]: With dead ends: 4832 [2024-12-02 10:30:49,807 INFO L226 Difference]: Without dead ends: 2822 [2024-12-02 10:30:49,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:30:49,809 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 485 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:49,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1408 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 10:30:49,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2024-12-02 10:30:50,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2151. [2024-12-02 10:30:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 1928 states have (on average 1.2038381742738589) internal successors, (2321), 1943 states have internal predecessors, (2321), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:30:50,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 2609 transitions. [2024-12-02 10:30:50,574 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 2609 transitions. Word has length 142 [2024-12-02 10:30:50,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:50,574 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 2609 transitions. [2024-12-02 10:30:50,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:30:50,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 2609 transitions. [2024-12-02 10:30:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:30:50,576 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:50,576 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:50,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (102)] Ended with exit code 0 [2024-12-02 10:30:50,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:50,776 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:50,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1940012899, now seen corresponding path program 1 times [2024-12-02 10:30:50,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:30:50,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149381049] [2024-12-02 10:30:50,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:50,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:50,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:30:50,779 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:30:50,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2024-12-02 10:30:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:51,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:30:51,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:51,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:30:51,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:30:51,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:30:51,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:30:51,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:51,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 45 [2024-12-02 10:30:51,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:30:51,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 28 [2024-12-02 10:30:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:30:51,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:30:51,984 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:30:51,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149381049] [2024-12-02 10:30:51,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149381049] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:51,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:51,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:30:51,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381101997] [2024-12-02 10:30:51,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:51,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:30:51,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:30:51,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:30:51,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:30:51,985 INFO L87 Difference]: Start difference. First operand 2151 states and 2609 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:58,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:58,534 INFO L93 Difference]: Finished difference Result 4660 states and 5622 transitions. [2024-12-02 10:30:58,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:30:58,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-12-02 10:30:58,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:58,540 INFO L225 Difference]: With dead ends: 4660 [2024-12-02 10:30:58,540 INFO L226 Difference]: Without dead ends: 2650 [2024-12-02 10:30:58,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:30:58,542 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 782 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:58,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1197 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 10:30:58,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2024-12-02 10:30:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2141. [2024-12-02 10:30:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1918 states have (on average 1.1996871741397288) internal successors, (2301), 1933 states have internal predecessors, (2301), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:30:59,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 2589 transitions. [2024-12-02 10:30:59,310 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 2589 transitions. Word has length 142 [2024-12-02 10:30:59,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:59,310 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 2589 transitions. [2024-12-02 10:30:59,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:59,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 2589 transitions. [2024-12-02 10:30:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:30:59,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:59,311 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:59,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (103)] Ended with exit code 0 [2024-12-02 10:30:59,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:59,512 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:59,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1333995485, now seen corresponding path program 1 times [2024-12-02 10:30:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:30:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509461117] [2024-12-02 10:30:59,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:59,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:30:59,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:30:59,514 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:30:59,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2024-12-02 10:31:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:00,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:31:00,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:00,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:31:00,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:31:00,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:31:00,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:31:00,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:00,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 46 [2024-12-02 10:31:00,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:00,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 39 [2024-12-02 10:31:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:31:00,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:31:00,841 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:00,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509461117] [2024-12-02 10:31:00,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509461117] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:31:00,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:31:00,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:31:00,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280839892] [2024-12-02 10:31:00,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:00,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:31:00,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:00,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:31:00,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:31:00,842 INFO L87 Difference]: Start difference. First operand 2141 states and 2589 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:31:05,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:05,742 INFO L93 Difference]: Finished difference Result 4602 states and 5542 transitions. [2024-12-02 10:31:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:31:05,743 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-12-02 10:31:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:05,748 INFO L225 Difference]: With dead ends: 4602 [2024-12-02 10:31:05,748 INFO L226 Difference]: Without dead ends: 2602 [2024-12-02 10:31:05,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:31:05,750 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 675 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:05,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1520 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 10:31:05,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-12-02 10:31:06,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2103. [2024-12-02 10:31:06,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 1880 states have (on average 1.2015957446808512) internal successors, (2259), 1895 states have internal predecessors, (2259), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2547 transitions. [2024-12-02 10:31:06,522 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2547 transitions. Word has length 142 [2024-12-02 10:31:06,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:06,522 INFO L471 AbstractCegarLoop]: Abstraction has 2103 states and 2547 transitions. [2024-12-02 10:31:06,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:31:06,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2547 transitions. [2024-12-02 10:31:06,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:06,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:06,524 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:06,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (104)] Ended with exit code 0 [2024-12-02 10:31:06,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:06,724 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:06,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:06,725 INFO L85 PathProgramCache]: Analyzing trace with hash -383670555, now seen corresponding path program 1 times [2024-12-02 10:31:06,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:06,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203938477] [2024-12-02 10:31:06,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:06,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:06,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:06,726 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:06,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2024-12-02 10:31:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:07,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 10:31:07,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:07,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:31:07,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:31:07,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:07,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:07,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:31:08,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:08,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 59 [2024-12-02 10:31:08,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:08,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 50 [2024-12-02 10:31:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:31:08,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:08,855 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:08,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203938477] [2024-12-02 10:31:08,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203938477] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:08,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:08,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:31:08,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968512297] [2024-12-02 10:31:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:08,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:31:08,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:08,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:31:08,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:31:08,856 INFO L87 Difference]: Start difference. First operand 2103 states and 2547 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:10,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:10,459 INFO L93 Difference]: Finished difference Result 4467 states and 5406 transitions. [2024-12-02 10:31:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:31:10,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:10,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:10,465 INFO L225 Difference]: With dead ends: 4467 [2024-12-02 10:31:10,465 INFO L226 Difference]: Without dead ends: 2505 [2024-12-02 10:31:10,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:31:10,467 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 268 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:10,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 679 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:31:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-12-02 10:31:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2107. [2024-12-02 10:31:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1884 states have (on average 1.201167728237792) internal successors, (2263), 1899 states have internal predecessors, (2263), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:11,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2551 transitions. [2024-12-02 10:31:11,242 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2551 transitions. Word has length 142 [2024-12-02 10:31:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:11,242 INFO L471 AbstractCegarLoop]: Abstraction has 2107 states and 2551 transitions. [2024-12-02 10:31:11,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2551 transitions. [2024-12-02 10:31:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:11,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:11,243 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:11,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (105)] Ended with exit code 0 [2024-12-02 10:31:11,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:11,443 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:11,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:11,444 INFO L85 PathProgramCache]: Analyzing trace with hash 444291429, now seen corresponding path program 1 times [2024-12-02 10:31:11,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:11,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491833794] [2024-12-02 10:31:11,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:11,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:11,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:11,445 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:11,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2024-12-02 10:31:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:11,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 10:31:11,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:11,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:31:11,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:31:12,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:31:12,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:12,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:12,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:31:13,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:13,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 75 [2024-12-02 10:31:13,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:13,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 59 [2024-12-02 10:31:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 257 proven. 21 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-12-02 10:31:14,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:14,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:14,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491833794] [2024-12-02 10:31:14,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491833794] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:14,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:14,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 28 [2024-12-02 10:31:14,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436293925] [2024-12-02 10:31:14,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:14,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:31:14,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:14,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:31:14,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2024-12-02 10:31:14,741 INFO L87 Difference]: Start difference. First operand 2107 states and 2551 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:16,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:16,592 INFO L93 Difference]: Finished difference Result 4641 states and 5597 transitions. [2024-12-02 10:31:16,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:31:16,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:16,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:16,599 INFO L225 Difference]: With dead ends: 4641 [2024-12-02 10:31:16,599 INFO L226 Difference]: Without dead ends: 2675 [2024-12-02 10:31:16,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:31:16,601 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 394 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:16,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 933 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:31:16,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2024-12-02 10:31:17,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2139. [2024-12-02 10:31:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 1916 states have (on average 1.1998956158663883) internal successors, (2299), 1931 states have internal predecessors, (2299), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2587 transitions. [2024-12-02 10:31:17,378 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2587 transitions. Word has length 142 [2024-12-02 10:31:17,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:17,378 INFO L471 AbstractCegarLoop]: Abstraction has 2139 states and 2587 transitions. [2024-12-02 10:31:17,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2587 transitions. [2024-12-02 10:31:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:17,379 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:17,379 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:17,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (106)] Ended with exit code 0 [2024-12-02 10:31:17,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:17,580 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:17,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:17,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1830494823, now seen corresponding path program 1 times [2024-12-02 10:31:17,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:17,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259428010] [2024-12-02 10:31:17,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:17,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:17,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:17,582 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:17,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2024-12-02 10:31:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:18,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 10:31:18,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:18,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:18,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:18,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 10:31:19,093 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:31:19,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:19,425 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259428010] [2024-12-02 10:31:19,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259428010] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:19,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:19,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-12-02 10:31:19,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182761784] [2024-12-02 10:31:19,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:19,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:31:19,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:19,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:31:19,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:31:19,426 INFO L87 Difference]: Start difference. First operand 2139 states and 2587 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:21,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:21,060 INFO L93 Difference]: Finished difference Result 4332 states and 5230 transitions. [2024-12-02 10:31:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:31:21,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:21,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:21,067 INFO L225 Difference]: With dead ends: 4332 [2024-12-02 10:31:21,067 INFO L226 Difference]: Without dead ends: 2328 [2024-12-02 10:31:21,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:31:21,068 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 89 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:21,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 947 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:31:21,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2024-12-02 10:31:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2051. [2024-12-02 10:31:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1828 states have (on average 1.1996717724288841) internal successors, (2193), 1843 states have internal predecessors, (2193), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2481 transitions. [2024-12-02 10:31:21,849 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2481 transitions. Word has length 142 [2024-12-02 10:31:21,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:21,850 INFO L471 AbstractCegarLoop]: Abstraction has 2051 states and 2481 transitions. [2024-12-02 10:31:21,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2481 transitions. [2024-12-02 10:31:21,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:21,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:21,851 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:21,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (107)] Ended with exit code 0 [2024-12-02 10:31:22,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:22,051 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:22,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:22,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2028444517, now seen corresponding path program 1 times [2024-12-02 10:31:22,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:22,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786761887] [2024-12-02 10:31:22,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:22,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:22,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:22,053 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:22,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2024-12-02 10:31:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:22,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 10:31:22,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:22,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:31:22,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:31:22,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:22,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:22,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:31:23,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:23,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 54 [2024-12-02 10:31:23,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:23,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 51 [2024-12-02 10:31:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:31:23,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:24,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:24,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786761887] [2024-12-02 10:31:24,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786761887] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:24,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:24,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:31:24,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348747444] [2024-12-02 10:31:24,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:24,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:31:24,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:24,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:31:24,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:31:24,277 INFO L87 Difference]: Start difference. First operand 2051 states and 2481 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:26,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:26,313 INFO L93 Difference]: Finished difference Result 4785 states and 5785 transitions. [2024-12-02 10:31:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:31:26,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:26,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:26,320 INFO L225 Difference]: With dead ends: 4785 [2024-12-02 10:31:26,320 INFO L226 Difference]: Without dead ends: 2875 [2024-12-02 10:31:26,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:31:26,322 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 277 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:26,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 852 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:31:26,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2024-12-02 10:31:27,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2202. [2024-12-02 10:31:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1979 states have (on average 1.1965639211723091) internal successors, (2368), 1994 states have internal predecessors, (2368), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2656 transitions. [2024-12-02 10:31:27,117 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2656 transitions. Word has length 142 [2024-12-02 10:31:27,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:27,118 INFO L471 AbstractCegarLoop]: Abstraction has 2202 states and 2656 transitions. [2024-12-02 10:31:27,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:27,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2656 transitions. [2024-12-02 10:31:27,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:27,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:27,119 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:27,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (108)] Ended with exit code 0 [2024-12-02 10:31:27,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:27,319 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:27,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:27,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1245563867, now seen corresponding path program 1 times [2024-12-02 10:31:27,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:27,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473221745] [2024-12-02 10:31:27,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:27,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:27,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:27,322 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:27,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2024-12-02 10:31:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:27,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 10:31:27,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:27,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:31:27,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:31:27,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:31:28,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:28,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:28,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 10:31:29,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:29,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 89 [2024-12-02 10:31:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 257 proven. 21 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-12-02 10:31:30,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:30,505 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:30,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473221745] [2024-12-02 10:31:30,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473221745] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:30,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:30,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-12-02 10:31:30,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723720407] [2024-12-02 10:31:30,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:30,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:31:30,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:30,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:31:30,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:31:30,506 INFO L87 Difference]: Start difference. First operand 2202 states and 2656 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:32,200 INFO L93 Difference]: Finished difference Result 4603 states and 5562 transitions. [2024-12-02 10:31:32,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:31:32,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:32,206 INFO L225 Difference]: With dead ends: 4603 [2024-12-02 10:31:32,206 INFO L226 Difference]: Without dead ends: 2542 [2024-12-02 10:31:32,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:31:32,208 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 97 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:32,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 976 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:31:32,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-12-02 10:31:32,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2139. [2024-12-02 10:31:32,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 1916 states have (on average 1.19258872651357) internal successors, (2285), 1931 states have internal predecessors, (2285), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2573 transitions. [2024-12-02 10:31:32,994 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2573 transitions. Word has length 142 [2024-12-02 10:31:32,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:32,994 INFO L471 AbstractCegarLoop]: Abstraction has 2139 states and 2573 transitions. [2024-12-02 10:31:32,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:32,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2573 transitions. [2024-12-02 10:31:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:32,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:32,995 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:33,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (109)] Ended with exit code 0 [2024-12-02 10:31:33,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:33,196 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:33,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash -108910941, now seen corresponding path program 1 times [2024-12-02 10:31:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:33,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624997410] [2024-12-02 10:31:33,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:33,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:33,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:33,198 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:33,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2024-12-02 10:31:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:33,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 10:31:33,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:33,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:33,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:33,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:31:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:31:34,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:34,984 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:34,984 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:34,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624997410] [2024-12-02 10:31:34,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624997410] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:34,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:34,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-12-02 10:31:34,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355007873] [2024-12-02 10:31:34,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:34,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:31:34,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:34,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:31:34,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:31:34,985 INFO L87 Difference]: Start difference. First operand 2139 states and 2573 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:36,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:36,691 INFO L93 Difference]: Finished difference Result 4850 states and 5830 transitions. [2024-12-02 10:31:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:31:36,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:36,698 INFO L225 Difference]: With dead ends: 4850 [2024-12-02 10:31:36,698 INFO L226 Difference]: Without dead ends: 2846 [2024-12-02 10:31:36,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:31:36,699 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 280 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:36,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 715 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:31:36,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2024-12-02 10:31:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2139. [2024-12-02 10:31:37,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 1916 states have (on average 1.1894572025052192) internal successors, (2279), 1931 states have internal predecessors, (2279), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:37,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2567 transitions. [2024-12-02 10:31:37,488 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2567 transitions. Word has length 142 [2024-12-02 10:31:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:37,488 INFO L471 AbstractCegarLoop]: Abstraction has 2139 states and 2567 transitions. [2024-12-02 10:31:37,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2567 transitions. [2024-12-02 10:31:37,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:37,489 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:37,489 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:37,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (110)] Ended with exit code 0 [2024-12-02 10:31:37,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:37,690 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:37,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:37,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1277292453, now seen corresponding path program 1 times [2024-12-02 10:31:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:37,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721930958] [2024-12-02 10:31:37,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:37,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:37,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:37,692 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:37,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2024-12-02 10:31:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:38,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-12-02 10:31:38,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:38,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:31:38,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 10:31:38,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:38,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:38,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 10:31:39,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:39,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 86 [2024-12-02 10:31:40,593 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 241 proven. 21 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-12-02 10:31:40,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:41,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:41,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721930958] [2024-12-02 10:31:41,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721930958] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:41,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:41,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [22] total 37 [2024-12-02 10:31:41,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324075988] [2024-12-02 10:31:41,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:41,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 10:31:41,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:41,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 10:31:41,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1187, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 10:31:41,807 INFO L87 Difference]: Start difference. First operand 2139 states and 2567 transitions. Second operand has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:45,491 INFO L93 Difference]: Finished difference Result 4949 states and 5932 transitions. [2024-12-02 10:31:45,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 10:31:45,491 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:45,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:45,497 INFO L225 Difference]: With dead ends: 4949 [2024-12-02 10:31:45,498 INFO L226 Difference]: Without dead ends: 2951 [2024-12-02 10:31:45,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=322, Invalid=2228, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 10:31:45,499 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 525 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:45,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 2129 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 10:31:45,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2024-12-02 10:31:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2221. [2024-12-02 10:31:46,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1998 states have (on average 1.1966966966966968) internal successors, (2391), 2013 states have internal predecessors, (2391), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:46,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 2679 transitions. [2024-12-02 10:31:46,399 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 2679 transitions. Word has length 142 [2024-12-02 10:31:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:46,399 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 2679 transitions. [2024-12-02 10:31:46,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 2679 transitions. [2024-12-02 10:31:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:46,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:46,400 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:46,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (111)] Forceful destruction successful, exit code 0 [2024-12-02 10:31:46,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:46,601 INFO L396 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:46,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:46,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2571225, now seen corresponding path program 1 times [2024-12-02 10:31:46,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:46,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114311919] [2024-12-02 10:31:46,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:46,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:46,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:46,603 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:46,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (112)] Waiting until timeout for monitored process [2024-12-02 10:31:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:47,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:31:47,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:47,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:47,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 10:31:47,101 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:47,101 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:31:47,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:47,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114311919] [2024-12-02 10:31:47,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114311919] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:31:47,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:31:47,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:31:47,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232377382] [2024-12-02 10:31:47,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:47,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:31:47,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:47,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:31:47,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:31:47,102 INFO L87 Difference]: Start difference. First operand 2221 states and 2679 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:48,561 INFO L93 Difference]: Finished difference Result 4659 states and 5615 transitions. [2024-12-02 10:31:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:31:48,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:48,567 INFO L225 Difference]: With dead ends: 4659 [2024-12-02 10:31:48,567 INFO L226 Difference]: Without dead ends: 2579 [2024-12-02 10:31:48,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:31:48,569 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 85 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:48,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 730 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:31:48,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2024-12-02 10:31:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 2207. [2024-12-02 10:31:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1984 states have (on average 1.188508064516129) internal successors, (2358), 1999 states have internal predecessors, (2358), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2646 transitions. [2024-12-02 10:31:49,378 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 2646 transitions. Word has length 142 [2024-12-02 10:31:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:49,378 INFO L471 AbstractCegarLoop]: Abstraction has 2207 states and 2646 transitions. [2024-12-02 10:31:49,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:49,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 2646 transitions. [2024-12-02 10:31:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:49,380 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:49,380 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:49,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (112)] Forceful destruction successful, exit code 0 [2024-12-02 10:31:49,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:49,580 INFO L396 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:49,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2105254437, now seen corresponding path program 1 times [2024-12-02 10:31:49,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:49,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045713705] [2024-12-02 10:31:49,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:49,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:49,582 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:49,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (113)] Waiting until timeout for monitored process [2024-12-02 10:31:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:50,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 10:31:50,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:50,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:31:50,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:31:50,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:31:50,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:31:50,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:50,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:31:50,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:50,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 51 [2024-12-02 10:31:51,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:51,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 44 [2024-12-02 10:31:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:31:51,244 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:31:51,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:51,552 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:51,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045713705] [2024-12-02 10:31:51,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045713705] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:51,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:31:51,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:31:51,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951434726] [2024-12-02 10:31:51,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:51,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:31:51,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:51,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:31:51,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:31:51,553 INFO L87 Difference]: Start difference. First operand 2207 states and 2646 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:53,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:53,110 INFO L93 Difference]: Finished difference Result 4566 states and 5458 transitions. [2024-12-02 10:31:53,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:31:53,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:53,116 INFO L225 Difference]: With dead ends: 4566 [2024-12-02 10:31:53,116 INFO L226 Difference]: Without dead ends: 2500 [2024-12-02 10:31:53,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:31:53,118 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 172 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:53,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 710 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:31:53,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2024-12-02 10:31:53,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 2183. [2024-12-02 10:31:53,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1960 states have (on average 1.186734693877551) internal successors, (2326), 1975 states have internal predecessors, (2326), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2614 transitions. [2024-12-02 10:31:53,925 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2614 transitions. Word has length 142 [2024-12-02 10:31:53,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:53,925 INFO L471 AbstractCegarLoop]: Abstraction has 2183 states and 2614 transitions. [2024-12-02 10:31:53,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2614 transitions. [2024-12-02 10:31:53,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:53,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:53,926 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:53,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (113)] Ended with exit code 0 [2024-12-02 10:31:54,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:54,127 INFO L396 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:54,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:54,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1851214555, now seen corresponding path program 1 times [2024-12-02 10:31:54,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:54,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305274981] [2024-12-02 10:31:54,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:54,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:54,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:54,129 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:54,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2024-12-02 10:31:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:54,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:31:54,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:54,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:54,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 10:31:54,623 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:54,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:31:54,624 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:54,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305274981] [2024-12-02 10:31:54,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305274981] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:31:54,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:31:54,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:31:54,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313121984] [2024-12-02 10:31:54,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:54,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:31:54,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:54,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:31:54,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:31:54,624 INFO L87 Difference]: Start difference. First operand 2183 states and 2614 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:56,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:56,468 INFO L93 Difference]: Finished difference Result 4886 states and 5824 transitions. [2024-12-02 10:31:56,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:31:56,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:56,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:56,475 INFO L225 Difference]: With dead ends: 4886 [2024-12-02 10:31:56,475 INFO L226 Difference]: Without dead ends: 2844 [2024-12-02 10:31:56,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:31:56,477 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 111 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:56,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 612 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:31:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2024-12-02 10:31:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2183. [2024-12-02 10:31:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1960 states have (on average 1.183673469387755) internal successors, (2320), 1975 states have internal predecessors, (2320), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:31:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2608 transitions. [2024-12-02 10:31:57,294 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2608 transitions. Word has length 142 [2024-12-02 10:31:57,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:31:57,294 INFO L471 AbstractCegarLoop]: Abstraction has 2183 states and 2608 transitions. [2024-12-02 10:31:57,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:57,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2608 transitions. [2024-12-02 10:31:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:31:57,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:31:57,295 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:31:57,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (114)] Ended with exit code 0 [2024-12-02 10:31:57,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:57,496 INFO L396 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:31:57,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:31:57,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1828582301, now seen corresponding path program 1 times [2024-12-02 10:31:57,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:31:57,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560543904] [2024-12-02 10:31:57,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:31:57,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:31:57,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:31:57,498 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:31:57,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (115)] Waiting until timeout for monitored process [2024-12-02 10:31:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:31:57,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:31:57,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:57,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:31:57,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 10:31:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:31:58,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:31:58,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:31:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560543904] [2024-12-02 10:31:58,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560543904] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:31:58,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:31:58,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:31:58,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048860673] [2024-12-02 10:31:58,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:31:58,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:31:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:31:58,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:31:58,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:31:58,007 INFO L87 Difference]: Start difference. First operand 2183 states and 2608 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:31:59,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:31:59,900 INFO L93 Difference]: Finished difference Result 4886 states and 5812 transitions. [2024-12-02 10:31:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:31:59,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:31:59,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:31:59,907 INFO L225 Difference]: With dead ends: 4886 [2024-12-02 10:31:59,907 INFO L226 Difference]: Without dead ends: 2844 [2024-12-02 10:31:59,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:31:59,909 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 107 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:31:59,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 612 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:31:59,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2024-12-02 10:32:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2183. [2024-12-02 10:32:00,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1960 states have (on average 1.1806122448979592) internal successors, (2314), 1975 states have internal predecessors, (2314), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:32:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2602 transitions. [2024-12-02 10:32:00,726 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2602 transitions. Word has length 142 [2024-12-02 10:32:00,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:00,726 INFO L471 AbstractCegarLoop]: Abstraction has 2183 states and 2602 transitions. [2024-12-02 10:32:00,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:00,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2602 transitions. [2024-12-02 10:32:00,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:32:00,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:00,728 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:00,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (115)] Forceful destruction successful, exit code 0 [2024-12-02 10:32:00,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:00,928 INFO L396 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:00,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 94645733, now seen corresponding path program 1 times [2024-12-02 10:32:00,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:32:00,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837114243] [2024-12-02 10:32:00,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:00,929 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:00,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:32:00,930 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:32:00,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (116)] Waiting until timeout for monitored process [2024-12-02 10:32:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:01,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 10:32:01,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:32:01,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:32:01,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:32:01,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:32:01,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:32:02,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:02,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:32:03,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:03,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 82 [2024-12-02 10:32:04,107 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 257 proven. 21 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-12-02 10:32:04,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:32:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:32:05,757 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:32:05,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837114243] [2024-12-02 10:32:05,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837114243] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:32:05,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:32:05,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [24] total 41 [2024-12-02 10:32:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031036602] [2024-12-02 10:32:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:05,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:32:05,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:32:05,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:32:05,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1457, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 10:32:05,758 INFO L87 Difference]: Start difference. First operand 2183 states and 2602 transitions. Second operand has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:10,341 INFO L93 Difference]: Finished difference Result 5296 states and 6277 transitions. [2024-12-02 10:32:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 10:32:10,342 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:32:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:10,349 INFO L225 Difference]: With dead ends: 5296 [2024-12-02 10:32:10,349 INFO L226 Difference]: Without dead ends: 3254 [2024-12-02 10:32:10,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=462, Invalid=3320, Unknown=0, NotChecked=0, Total=3782 [2024-12-02 10:32:10,351 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 636 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:10,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 2487 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 10:32:10,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2024-12-02 10:32:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2159. [2024-12-02 10:32:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2159 states, 1936 states have (on average 1.1797520661157024) internal successors, (2284), 1951 states have internal predecessors, (2284), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:32:11,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2159 states to 2159 states and 2572 transitions. [2024-12-02 10:32:11,172 INFO L78 Accepts]: Start accepts. Automaton has 2159 states and 2572 transitions. Word has length 142 [2024-12-02 10:32:11,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:11,172 INFO L471 AbstractCegarLoop]: Abstraction has 2159 states and 2572 transitions. [2024-12-02 10:32:11,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:11,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 2572 transitions. [2024-12-02 10:32:11,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:32:11,174 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:11,174 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:11,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (116)] Forceful destruction successful, exit code 0 [2024-12-02 10:32:11,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:11,374 INFO L396 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:11,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1115604645, now seen corresponding path program 1 times [2024-12-02 10:32:11,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:32:11,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979018526] [2024-12-02 10:32:11,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:11,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:11,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:32:11,376 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:32:11,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2024-12-02 10:32:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:11,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 10:32:11,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:32:11,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:32:11,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:32:11,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:32:12,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:32:12,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:12,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:32:13,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:13,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 56 [2024-12-02 10:32:13,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:13,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 49 [2024-12-02 10:32:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 233 proven. 21 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-02 10:32:13,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:32:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:32:13,707 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:32:13,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979018526] [2024-12-02 10:32:13,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979018526] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:32:13,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:32:13,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-12-02 10:32:13,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696376997] [2024-12-02 10:32:13,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:13,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:32:13,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:32:13,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:32:13,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:32:13,708 INFO L87 Difference]: Start difference. First operand 2159 states and 2572 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:15,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:15,353 INFO L93 Difference]: Finished difference Result 4651 states and 5539 transitions. [2024-12-02 10:32:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:32:15,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 142 [2024-12-02 10:32:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:15,361 INFO L225 Difference]: With dead ends: 4651 [2024-12-02 10:32:15,361 INFO L226 Difference]: Without dead ends: 2633 [2024-12-02 10:32:15,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:32:15,362 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 263 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:15,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 879 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:32:15,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-12-02 10:32:16,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2078. [2024-12-02 10:32:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 1855 states have (on average 1.1778975741239892) internal successors, (2185), 1870 states have internal predecessors, (2185), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:32:16,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2473 transitions. [2024-12-02 10:32:16,184 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2473 transitions. Word has length 142 [2024-12-02 10:32:16,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:16,184 INFO L471 AbstractCegarLoop]: Abstraction has 2078 states and 2473 transitions. [2024-12-02 10:32:16,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:16,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2473 transitions. [2024-12-02 10:32:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:32:16,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:16,186 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:16,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (117)] Ended with exit code 0 [2024-12-02 10:32:16,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:16,386 INFO L396 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:16,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1708322978, now seen corresponding path program 1 times [2024-12-02 10:32:16,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:32:16,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083697452] [2024-12-02 10:32:16,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:16,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:16,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:32:16,388 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:32:16,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (118)] Waiting until timeout for monitored process [2024-12-02 10:32:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:16,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:32:16,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:32:16,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:32:17,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:32:17,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:17,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2024-12-02 10:32:17,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:17,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 26 [2024-12-02 10:32:17,573 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-02 10:32:17,573 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:32:17,573 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:32:17,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083697452] [2024-12-02 10:32:17,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083697452] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:32:17,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:32:17,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 10:32:17,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037723292] [2024-12-02 10:32:17,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:17,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:32:17,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:32:17,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:32:17,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:32:17,574 INFO L87 Difference]: Start difference. First operand 2078 states and 2473 transitions. Second operand has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:32:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:20,617 INFO L93 Difference]: Finished difference Result 4614 states and 5475 transitions. [2024-12-02 10:32:20,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:32:20,618 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 144 [2024-12-02 10:32:20,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:20,625 INFO L225 Difference]: With dead ends: 4614 [2024-12-02 10:32:20,625 INFO L226 Difference]: Without dead ends: 2677 [2024-12-02 10:32:20,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:32:20,627 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 250 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:20,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1534 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 10:32:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-12-02 10:32:21,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2161. [2024-12-02 10:32:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 1938 states have (on average 1.174922600619195) internal successors, (2277), 1953 states have internal predecessors, (2277), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:32:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2565 transitions. [2024-12-02 10:32:21,472 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2565 transitions. Word has length 144 [2024-12-02 10:32:21,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:21,473 INFO L471 AbstractCegarLoop]: Abstraction has 2161 states and 2565 transitions. [2024-12-02 10:32:21,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:32:21,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2565 transitions. [2024-12-02 10:32:21,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:32:21,474 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:21,474 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:21,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (118)] Ended with exit code 0 [2024-12-02 10:32:21,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:21,674 INFO L396 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:21,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:21,675 INFO L85 PathProgramCache]: Analyzing trace with hash -322119584, now seen corresponding path program 1 times [2024-12-02 10:32:21,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:32:21,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750598433] [2024-12-02 10:32:21,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:21,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:21,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:32:21,676 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:32:21,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (119)] Waiting until timeout for monitored process [2024-12-02 10:32:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:22,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:32:22,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:32:22,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:32:22,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:22,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 23 [2024-12-02 10:32:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:32:22,505 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:32:22,505 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:32:22,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750598433] [2024-12-02 10:32:22,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750598433] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:32:22,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:32:22,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:32:22,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654584955] [2024-12-02 10:32:22,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:22,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:32:22,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:32:22,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:32:22,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:32:22,506 INFO L87 Difference]: Start difference. First operand 2161 states and 2565 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:27,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:27,269 INFO L93 Difference]: Finished difference Result 4694 states and 5552 transitions. [2024-12-02 10:32:27,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:32:27,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:32:27,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:27,276 INFO L225 Difference]: With dead ends: 4694 [2024-12-02 10:32:27,276 INFO L226 Difference]: Without dead ends: 2674 [2024-12-02 10:32:27,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:32:27,278 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 464 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:27,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1455 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 10:32:27,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2024-12-02 10:32:28,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2159. [2024-12-02 10:32:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2159 states, 1936 states have (on average 1.1740702479338843) internal successors, (2273), 1951 states have internal predecessors, (2273), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:32:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2159 states to 2159 states and 2561 transitions. [2024-12-02 10:32:28,127 INFO L78 Accepts]: Start accepts. Automaton has 2159 states and 2561 transitions. Word has length 144 [2024-12-02 10:32:28,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:28,127 INFO L471 AbstractCegarLoop]: Abstraction has 2159 states and 2561 transitions. [2024-12-02 10:32:28,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:28,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 2561 transitions. [2024-12-02 10:32:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:32:28,129 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:28,129 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:28,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (119)] Ended with exit code 0 [2024-12-02 10:32:28,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:28,329 INFO L396 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:28,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:28,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1430907810, now seen corresponding path program 1 times [2024-12-02 10:32:28,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:32:28,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007674429] [2024-12-02 10:32:28,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:28,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:28,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:32:28,331 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:32:28,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2024-12-02 10:32:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:28,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 10:32:28,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:32:28,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:32:28,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:32:28,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:32:29,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 10:32:29,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:29,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 54 [2024-12-02 10:32:29,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:29,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 32 [2024-12-02 10:32:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-02 10:32:30,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:32:30,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:32:30,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007674429] [2024-12-02 10:32:30,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007674429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:32:30,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:32:30,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 10:32:30,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141603145] [2024-12-02 10:32:30,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:30,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:32:30,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:32:30,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:32:30,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:32:30,535 INFO L87 Difference]: Start difference. First operand 2159 states and 2561 transitions. Second operand has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 19 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:32:41,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:41,179 INFO L93 Difference]: Finished difference Result 4720 states and 5577 transitions. [2024-12-02 10:32:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:32:41,180 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 19 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 144 [2024-12-02 10:32:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:41,187 INFO L225 Difference]: With dead ends: 4720 [2024-12-02 10:32:41,187 INFO L226 Difference]: Without dead ends: 2702 [2024-12-02 10:32:41,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:32:41,190 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 748 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:41,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 2545 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-12-02 10:32:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2024-12-02 10:32:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2191. [2024-12-02 10:32:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1968 states have (on average 1.171239837398374) internal successors, (2305), 1983 states have internal predecessors, (2305), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:32:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2593 transitions. [2024-12-02 10:32:42,060 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2593 transitions. Word has length 144 [2024-12-02 10:32:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:42,060 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2593 transitions. [2024-12-02 10:32:42,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 19 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:32:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2593 transitions. [2024-12-02 10:32:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:32:42,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:42,062 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:42,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (120)] Ended with exit code 0 [2024-12-02 10:32:42,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:42,262 INFO L396 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:42,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:42,262 INFO L85 PathProgramCache]: Analyzing trace with hash -727505815, now seen corresponding path program 1 times [2024-12-02 10:32:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:32:42,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735891405] [2024-12-02 10:32:42,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:42,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:32:42,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:32:42,264 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:32:42,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (121)] Waiting until timeout for monitored process [2024-12-02 10:32:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:42,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:32:42,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:32:42,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:32:44,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:32:44,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 34 [2024-12-02 10:32:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:32:44,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:32:44,637 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:32:44,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735891405] [2024-12-02 10:32:44,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735891405] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:32:44,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:32:44,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:32:44,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825083330] [2024-12-02 10:32:44,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:44,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:32:44,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:32:44,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:32:44,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:32:44,638 INFO L87 Difference]: Start difference. First operand 2191 states and 2593 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:32:58,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:33:01,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 10:33:09,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:09,124 INFO L93 Difference]: Finished difference Result 4749 states and 5602 transitions. [2024-12-02 10:33:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:33:09,125 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:33:09,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:09,135 INFO L225 Difference]: With dead ends: 4749 [2024-12-02 10:33:09,135 INFO L226 Difference]: Without dead ends: 2699 [2024-12-02 10:33:09,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=68, Invalid=237, Unknown=1, NotChecked=0, Total=306 [2024-12-02 10:33:09,137 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 450 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 87 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:09,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1495 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 916 Invalid, 1 Unknown, 0 Unchecked, 18.5s Time] [2024-12-02 10:33:09,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2024-12-02 10:33:10,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2191. [2024-12-02 10:33:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1968 states have (on average 1.171239837398374) internal successors, (2305), 1983 states have internal predecessors, (2305), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:10,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2593 transitions. [2024-12-02 10:33:10,029 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2593 transitions. Word has length 144 [2024-12-02 10:33:10,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:10,029 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2593 transitions. [2024-12-02 10:33:10,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:10,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2593 transitions. [2024-12-02 10:33:10,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:10,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:10,031 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:10,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (121)] Ended with exit code 0 [2024-12-02 10:33:10,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:10,231 INFO L396 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:10,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:10,231 INFO L85 PathProgramCache]: Analyzing trace with hash 658697579, now seen corresponding path program 1 times [2024-12-02 10:33:10,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:10,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767463532] [2024-12-02 10:33:10,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:10,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:10,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:10,233 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:10,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (122)] Waiting until timeout for monitored process [2024-12-02 10:33:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:10,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:33:10,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:10,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:33:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:33:11,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:33:11,143 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:11,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767463532] [2024-12-02 10:33:11,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767463532] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:33:11,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:33:11,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:33:11,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609086370] [2024-12-02 10:33:11,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:11,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:33:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:11,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:33:11,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:33:11,144 INFO L87 Difference]: Start difference. First operand 2191 states and 2593 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:15,212 INFO L93 Difference]: Finished difference Result 4669 states and 5509 transitions. [2024-12-02 10:33:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:33:15,213 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:33:15,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:15,220 INFO L225 Difference]: With dead ends: 4669 [2024-12-02 10:33:15,220 INFO L226 Difference]: Without dead ends: 2619 [2024-12-02 10:33:15,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:33:15,222 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 409 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:15,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1323 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 10:33:15,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2024-12-02 10:33:16,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2136. [2024-12-02 10:33:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1913 states have (on average 1.1683220073183482) internal successors, (2235), 1928 states have internal predecessors, (2235), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:16,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2523 transitions. [2024-12-02 10:33:16,105 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2523 transitions. Word has length 144 [2024-12-02 10:33:16,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:16,105 INFO L471 AbstractCegarLoop]: Abstraction has 2136 states and 2523 transitions. [2024-12-02 10:33:16,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:16,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2523 transitions. [2024-12-02 10:33:16,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:16,107 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:16,107 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:16,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (122)] Ended with exit code 0 [2024-12-02 10:33:16,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:16,307 INFO L396 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:16,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:16,307 INFO L85 PathProgramCache]: Analyzing trace with hash -482564121, now seen corresponding path program 1 times [2024-12-02 10:33:16,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:16,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062843377] [2024-12-02 10:33:16,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:16,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:16,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:16,309 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:16,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (123)] Waiting until timeout for monitored process [2024-12-02 10:33:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:16,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:33:16,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:16,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-12-02 10:33:17,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:17,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 35 [2024-12-02 10:33:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:33:17,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:33:17,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:17,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062843377] [2024-12-02 10:33:17,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062843377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:33:17,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:33:17,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:33:17,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886987175] [2024-12-02 10:33:17,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:17,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:33:17,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:17,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:33:17,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:33:17,180 INFO L87 Difference]: Start difference. First operand 2136 states and 2523 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:21,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:21,133 INFO L93 Difference]: Finished difference Result 4555 states and 5370 transitions. [2024-12-02 10:33:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:33:21,134 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:33:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:21,142 INFO L225 Difference]: With dead ends: 4555 [2024-12-02 10:33:21,142 INFO L226 Difference]: Without dead ends: 2560 [2024-12-02 10:33:21,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:33:21,143 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 395 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:21,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1368 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 10:33:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2024-12-02 10:33:22,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2081. [2024-12-02 10:33:22,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 1858 states have (on average 1.1695371367061356) internal successors, (2173), 1873 states have internal predecessors, (2173), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2461 transitions. [2024-12-02 10:33:22,021 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2461 transitions. Word has length 144 [2024-12-02 10:33:22,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:22,021 INFO L471 AbstractCegarLoop]: Abstraction has 2081 states and 2461 transitions. [2024-12-02 10:33:22,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2461 transitions. [2024-12-02 10:33:22,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:22,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:22,022 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:22,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (123)] Ended with exit code 0 [2024-12-02 10:33:22,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:22,223 INFO L396 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:22,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -456714272, now seen corresponding path program 1 times [2024-12-02 10:33:22,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:22,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906026008] [2024-12-02 10:33:22,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:22,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:22,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:22,225 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:22,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (124)] Waiting until timeout for monitored process [2024-12-02 10:33:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:22,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:33:22,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:22,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 10:33:22,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 10:33:22,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 10:33:23,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:23,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 41 [2024-12-02 10:33:23,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:23,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 24 [2024-12-02 10:33:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-02 10:33:23,074 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:33:23,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:23,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906026008] [2024-12-02 10:33:23,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906026008] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:33:23,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:33:23,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:33:23,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936701625] [2024-12-02 10:33:23,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:23,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:33:23,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:23,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:33:23,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:33:23,075 INFO L87 Difference]: Start difference. First operand 2081 states and 2461 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:33:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:25,089 INFO L93 Difference]: Finished difference Result 4396 states and 5205 transitions. [2024-12-02 10:33:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:33:25,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 144 [2024-12-02 10:33:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:25,097 INFO L225 Difference]: With dead ends: 4396 [2024-12-02 10:33:25,097 INFO L226 Difference]: Without dead ends: 2456 [2024-12-02 10:33:25,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:33:25,098 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 246 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:25,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 602 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:33:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2024-12-02 10:33:26,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 2011. [2024-12-02 10:33:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2011 states, 1788 states have (on average 1.1661073825503356) internal successors, (2085), 1803 states have internal predecessors, (2085), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2373 transitions. [2024-12-02 10:33:26,018 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2373 transitions. Word has length 144 [2024-12-02 10:33:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:26,018 INFO L471 AbstractCegarLoop]: Abstraction has 2011 states and 2373 transitions. [2024-12-02 10:33:26,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:33:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2373 transitions. [2024-12-02 10:33:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:26,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:26,019 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:26,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (124)] Ended with exit code 0 [2024-12-02 10:33:26,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:26,220 INFO L396 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:26,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:26,220 INFO L85 PathProgramCache]: Analyzing trace with hash 101527138, now seen corresponding path program 1 times [2024-12-02 10:33:26,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:26,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083074145] [2024-12-02 10:33:26,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:26,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:26,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:26,222 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:26,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (125)] Waiting until timeout for monitored process [2024-12-02 10:33:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:26,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:33:26,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:26,726 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:26,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 10:33:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:33:26,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:33:26,747 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:26,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083074145] [2024-12-02 10:33:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083074145] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:33:26,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:33:26,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:33:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945198563] [2024-12-02 10:33:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:26,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:33:26,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:26,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:33:26,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:33:26,748 INFO L87 Difference]: Start difference. First operand 2011 states and 2373 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:28,394 INFO L93 Difference]: Finished difference Result 4279 states and 5050 transitions. [2024-12-02 10:33:28,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:33:28,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:33:28,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:28,402 INFO L225 Difference]: With dead ends: 4279 [2024-12-02 10:33:28,402 INFO L226 Difference]: Without dead ends: 2409 [2024-12-02 10:33:28,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:33:28,403 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 102 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:28,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 729 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:33:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2024-12-02 10:33:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 1982. [2024-12-02 10:33:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1982 states, 1759 states have (on average 1.1637293916998295) internal successors, (2047), 1774 states have internal predecessors, (2047), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 2335 transitions. [2024-12-02 10:33:29,369 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 2335 transitions. Word has length 144 [2024-12-02 10:33:29,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:29,369 INFO L471 AbstractCegarLoop]: Abstraction has 1982 states and 2335 transitions. [2024-12-02 10:33:29,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 2335 transitions. [2024-12-02 10:33:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:29,371 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:29,371 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:29,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (125)] Ended with exit code 0 [2024-12-02 10:33:29,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:29,571 INFO L396 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:29,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:29,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1007261088, now seen corresponding path program 1 times [2024-12-02 10:33:29,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:29,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145753586] [2024-12-02 10:33:29,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:29,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:29,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:29,574 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:29,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (126)] Waiting until timeout for monitored process [2024-12-02 10:33:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:30,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:33:30,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:30,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 10:33:30,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-02 10:33:30,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-12-02 10:33:30,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:30,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 38 [2024-12-02 10:33:30,553 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:30,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 26 [2024-12-02 10:33:30,681 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-12-02 10:33:30,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:33:30,681 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:30,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145753586] [2024-12-02 10:33:30,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145753586] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:33:30,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:33:30,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 10:33:30,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6961801] [2024-12-02 10:33:30,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:30,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:33:30,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:30,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:33:30,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:33:30,682 INFO L87 Difference]: Start difference. First operand 1982 states and 2335 transitions. Second operand has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:33:33,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:33,687 INFO L93 Difference]: Finished difference Result 4473 states and 5259 transitions. [2024-12-02 10:33:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:33:33,688 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 144 [2024-12-02 10:33:33,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:33,694 INFO L225 Difference]: With dead ends: 4473 [2024-12-02 10:33:33,694 INFO L226 Difference]: Without dead ends: 2632 [2024-12-02 10:33:33,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:33:33,696 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 226 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:33,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1895 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 10:33:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2024-12-02 10:33:34,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2045. [2024-12-02 10:33:34,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 1822 states have (on average 1.1608122941822174) internal successors, (2115), 1837 states have internal predecessors, (2115), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2403 transitions. [2024-12-02 10:33:34,583 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2403 transitions. Word has length 144 [2024-12-02 10:33:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:34,584 INFO L471 AbstractCegarLoop]: Abstraction has 2045 states and 2403 transitions. [2024-12-02 10:33:34,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:33:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2403 transitions. [2024-12-02 10:33:34,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:34,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:34,585 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:34,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (126)] Ended with exit code 0 [2024-12-02 10:33:34,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:34,785 INFO L396 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:34,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:34,786 INFO L85 PathProgramCache]: Analyzing trace with hash -303859093, now seen corresponding path program 1 times [2024-12-02 10:33:34,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:34,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126269391] [2024-12-02 10:33:34,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:34,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:34,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:34,788 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:34,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (127)] Waiting until timeout for monitored process [2024-12-02 10:33:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:35,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 10:33:35,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:35,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:33:35,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:35,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 40 [2024-12-02 10:33:36,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:36,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 51 [2024-12-02 10:33:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:33:36,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:33:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:33:36,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:36,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126269391] [2024-12-02 10:33:36,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126269391] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:33:36,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:33:36,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:33:36,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816850826] [2024-12-02 10:33:36,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:36,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:33:36,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:36,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:33:36,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:33:36,750 INFO L87 Difference]: Start difference. First operand 2045 states and 2403 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:38,526 INFO L93 Difference]: Finished difference Result 4415 states and 5192 transitions. [2024-12-02 10:33:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:33:38,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:33:38,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:38,533 INFO L225 Difference]: With dead ends: 4415 [2024-12-02 10:33:38,533 INFO L226 Difference]: Without dead ends: 2511 [2024-12-02 10:33:38,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:33:38,535 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 109 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:38,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 981 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:33:38,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-12-02 10:33:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2047. [2024-12-02 10:33:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 1824 states have (on average 1.1606359649122806) internal successors, (2117), 1839 states have internal predecessors, (2117), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2405 transitions. [2024-12-02 10:33:39,426 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2405 transitions. Word has length 144 [2024-12-02 10:33:39,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:39,426 INFO L471 AbstractCegarLoop]: Abstraction has 2047 states and 2405 transitions. [2024-12-02 10:33:39,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:39,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2405 transitions. [2024-12-02 10:33:39,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:39,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:39,427 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:39,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (127)] Ended with exit code 0 [2024-12-02 10:33:39,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:39,628 INFO L396 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:39,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:39,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1082344301, now seen corresponding path program 1 times [2024-12-02 10:33:39,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:39,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894208864] [2024-12-02 10:33:39,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:39,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:39,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:39,630 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:39,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (128)] Waiting until timeout for monitored process [2024-12-02 10:33:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:40,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 10:33:40,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:40,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:33:40,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:40,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 10:33:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:33:41,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:33:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:33:41,586 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:41,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894208864] [2024-12-02 10:33:41,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894208864] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:33:41,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:33:41,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-12-02 10:33:41,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060035752] [2024-12-02 10:33:41,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:41,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:33:41,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:41,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:33:41,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:33:41,587 INFO L87 Difference]: Start difference. First operand 2047 states and 2405 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:43,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:43,364 INFO L93 Difference]: Finished difference Result 4212 states and 4946 transitions. [2024-12-02 10:33:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:33:43,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:33:43,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:43,372 INFO L225 Difference]: With dead ends: 4212 [2024-12-02 10:33:43,372 INFO L226 Difference]: Without dead ends: 2306 [2024-12-02 10:33:43,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:33:43,373 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 95 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:43,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 973 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:33:43,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2024-12-02 10:33:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1981. [2024-12-02 10:33:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1758 states have (on average 1.1575654152445962) internal successors, (2035), 1773 states have internal predecessors, (2035), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2323 transitions. [2024-12-02 10:33:44,327 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2323 transitions. Word has length 144 [2024-12-02 10:33:44,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:44,327 INFO L471 AbstractCegarLoop]: Abstraction has 1981 states and 2323 transitions. [2024-12-02 10:33:44,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:44,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2323 transitions. [2024-12-02 10:33:44,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:33:44,328 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:44,328 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:44,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (128)] Forceful destruction successful, exit code 0 [2024-12-02 10:33:44,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:44,529 INFO L396 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:44,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash -886879383, now seen corresponding path program 1 times [2024-12-02 10:33:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:44,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790258813] [2024-12-02 10:33:44,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:44,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:44,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:44,531 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:44,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (129)] Waiting until timeout for monitored process [2024-12-02 10:33:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:45,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 10:33:45,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:45,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 10:33:45,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:45,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 10:33:46,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:46,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 45 [2024-12-02 10:33:46,173 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 193 proven. 21 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 10:33:46,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:33:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:33:46,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:46,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790258813] [2024-12-02 10:33:46,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790258813] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:33:46,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:33:46,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2024-12-02 10:33:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925751810] [2024-12-02 10:33:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:46,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:33:46,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:46,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:33:46,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:33:46,497 INFO L87 Difference]: Start difference. First operand 1981 states and 2323 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:48,240 INFO L93 Difference]: Finished difference Result 4089 states and 4772 transitions. [2024-12-02 10:33:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:33:48,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2024-12-02 10:33:48,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:48,248 INFO L225 Difference]: With dead ends: 4089 [2024-12-02 10:33:48,248 INFO L226 Difference]: Without dead ends: 2249 [2024-12-02 10:33:48,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:33:48,249 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 280 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:48,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 856 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:33:48,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2024-12-02 10:33:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 1830. [2024-12-02 10:33:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1607 states have (on average 1.148724331051649) internal successors, (1846), 1622 states have internal predecessors, (1846), 144 states have call successors, (144), 78 states have call predecessors, (144), 78 states have return successors, (144), 129 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 10:33:49,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2134 transitions. [2024-12-02 10:33:49,178 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2134 transitions. Word has length 144 [2024-12-02 10:33:49,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:49,178 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 2134 transitions. [2024-12-02 10:33:49,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:33:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2134 transitions. [2024-12-02 10:33:49,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 10:33:49,180 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:33:49,180 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:49,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (129)] Forceful destruction successful, exit code 0 [2024-12-02 10:33:49,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:49,381 INFO L396 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:33:49,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:33:49,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1178074661, now seen corresponding path program 1 times [2024-12-02 10:33:49,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:33:49,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926832776] [2024-12-02 10:33:49,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:33:49,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:49,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:33:49,383 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:33:49,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (130)] Waiting until timeout for monitored process [2024-12-02 10:33:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:33:49,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:33:49,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:33:49,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 10:33:49,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-12-02 10:33:49,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:49,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-12-02 10:33:50,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:50,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 33 [2024-12-02 10:33:50,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:33:50,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 25 [2024-12-02 10:33:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-12-02 10:33:50,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:33:50,260 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:33:50,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926832776] [2024-12-02 10:33:50,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926832776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:33:50,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:33:50,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:33:50,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243958507] [2024-12-02 10:33:50,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:33:50,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:33:50,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:33:50,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:33:50,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:33:50,260 INFO L87 Difference]: Start difference. First operand 1830 states and 2134 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:33:52,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:52,302 INFO L93 Difference]: Finished difference Result 3934 states and 4546 transitions. [2024-12-02 10:33:52,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:33:52,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 146 [2024-12-02 10:33:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:52,308 INFO L225 Difference]: With dead ends: 3934 [2024-12-02 10:33:52,308 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 10:33:52,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:33:52,310 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 235 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:52,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 491 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:33:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 10:33:52,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 10:33:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:33:52,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 10:33:52,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 146 [2024-12-02 10:33:52,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:33:52,314 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 10:33:52,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:33:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 10:33:52,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 10:33:52,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:33:52,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (130)] Ended with exit code 0 [2024-12-02 10:33:52,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35cc8d42-5ae3-4745-8bc8-b2c3fddc0c82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:33:52,519 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:33:52,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.