./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:43:30,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:43:30,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:43:30,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:43:30,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:43:30,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:43:30,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:43:30,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:43:30,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:43:30,303 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:43:30,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:43:30,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:43:30,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:43:30,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:43:30,304 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:43:30,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:43:30,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:43:30,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:43:30,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:43:30,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:43:30,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:43:30,305 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:43:30,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:43:30,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:43:30,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:43:30,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:43:30,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:43:30,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:43:30,307 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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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 -> 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d [2024-12-02 08:43:30,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:43:30,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:43:30,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:43:30,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:43:30,542 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:43:30,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i [2024-12-02 08:43:33,146 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/73bbdb61d/1719cad9099b42b6a0d5abca11721c40/FLAGbd3526b79 [2024-12-02 08:43:33,353 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:43:33,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i [2024-12-02 08:43:33,361 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/73bbdb61d/1719cad9099b42b6a0d5abca11721c40/FLAGbd3526b79 [2024-12-02 08:43:33,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/73bbdb61d/1719cad9099b42b6a0d5abca11721c40 [2024-12-02 08:43:33,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:43:33,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:43:33,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:43:33,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:43:33,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:43:33,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:33,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9d238b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33, skipping insertion in model container [2024-12-02 08:43:33,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:33,751 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:43:33,854 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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-12-02 08:43:33,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:43:33,914 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:43:33,922 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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-12-02 08:43:33,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:43:33,967 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:43:33,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33 WrapperNode [2024-12-02 08:43:33,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:43:33,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:43:33,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:43:33,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:43:33,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:33,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,012 INFO L138 Inliner]: procedures = 29, calls = 189, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 591 [2024-12-02 08:43:34,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:43:34,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:43:34,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:43:34,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:43:34,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,049 INFO L175 MemorySlicer]: Split 146 memory accesses to 15 slices as follows [2, 7, 6, 10, 10, 8, 8, 12, 9, 26, 16, 5, 9, 8, 10]. 18 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1]. [2024-12-02 08:43:34,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,067 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:43:34,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:43:34,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:43:34,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:43:34,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (1/1) ... [2024-12-02 08:43:34,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:43:34,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:34,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:43:34,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:43:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 08:43:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 08:43:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-12-02 08:43:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-12-02 08:43:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 08:43:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:43:34,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:43:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:43:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:43:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:43:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 08:43:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 08:43:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:43:34,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:43:34,313 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:43:34,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:43:34,807 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-12-02 08:43:34,807 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:43:34,818 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:43:34,818 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:43:34,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:34 BoogieIcfgContainer [2024-12-02 08:43:34,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:43:34,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:43:34,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:43:34,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:43:34,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:43:33" (1/3) ... [2024-12-02 08:43:34,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eef5489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:43:34, skipping insertion in model container [2024-12-02 08:43:34,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:33" (2/3) ... [2024-12-02 08:43:34,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eef5489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:43:34, skipping insertion in model container [2024-12-02 08:43:34,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:34" (3/3) ... [2024-12-02 08:43:34,826 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-25.i [2024-12-02 08:43:34,836 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:43:34,837 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-25.i that has 2 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:43:34,891 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:43:34,903 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;@2d7a0590, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:43:34,904 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:43:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:43:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:43:34,919 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:34,920 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:34,920 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:34,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1167224636, now seen corresponding path program 1 times [2024-12-02 08:43:34,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:34,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172611592] [2024-12-02 08:43:34,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:34,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 08:43:35,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172611592] [2024-12-02 08:43:35,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172611592] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:35,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524822612] [2024-12-02 08:43:35,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:35,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:35,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:35,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:35,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:43:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:35,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:43:35,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 08:43:35,559 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:35,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524822612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:35,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:35,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:43:35,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562770815] [2024-12-02 08:43:35,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:35,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:43:35,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:35,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:43:35,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:43:35,587 INFO L87 Difference]: Start difference. First operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:43:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:35,615 INFO L93 Difference]: Finished difference Result 241 states and 378 transitions. [2024-12-02 08:43:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:43:35,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-12-02 08:43:35,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:35,624 INFO L225 Difference]: With dead ends: 241 [2024-12-02 08:43:35,624 INFO L226 Difference]: Without dead ends: 120 [2024-12-02 08:43:35,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 08:43:35,630 INFO L435 NwaCegarLoop]: 176 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, 176 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 08:43:35,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:43:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-12-02 08:43:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-12-02 08:43:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:43:35,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-12-02 08:43:35,671 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2024-12-02 08:43:35,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:35,671 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-12-02 08:43:35,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:43:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-12-02 08:43:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:43:35,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:35,675 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:35,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:43:35,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:43:35,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:35,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:35,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1643043108, now seen corresponding path program 1 times [2024-12-02 08:43:35,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:35,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795857820] [2024-12-02 08:43:35,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:35,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:37,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:37,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795857820] [2024-12-02 08:43:37,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795857820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:37,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:37,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:43:37,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583772065] [2024-12-02 08:43:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:37,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:43:37,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:37,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:43:37,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:43:37,377 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 08:43:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:37,918 INFO L93 Difference]: Finished difference Result 317 states and 464 transitions. [2024-12-02 08:43:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:43:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 144 [2024-12-02 08:43:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:37,921 INFO L225 Difference]: With dead ends: 317 [2024-12-02 08:43:37,921 INFO L226 Difference]: Without dead ends: 200 [2024-12-02 08:43:37,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:43:37,922 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 271 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:37,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1064 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:43:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-12-02 08:43:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2024-12-02 08:43:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 166 states have (on average 1.391566265060241) internal successors, (231), 167 states have internal predecessors, (231), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 08:43:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 287 transitions. [2024-12-02 08:43:37,949 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 287 transitions. Word has length 144 [2024-12-02 08:43:37,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:37,950 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 287 transitions. [2024-12-02 08:43:37,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 08:43:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 287 transitions. [2024-12-02 08:43:37,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 08:43:37,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:37,953 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:37,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:43:37,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:37,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:37,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1671490847, now seen corresponding path program 1 times [2024-12-02 08:43:37,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:37,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887737064] [2024-12-02 08:43:37,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:38,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887737064] [2024-12-02 08:43:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887737064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:38,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:38,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:43:38,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559494137] [2024-12-02 08:43:38,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:38,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:38,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:38,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:38,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:43:38,309 INFO L87 Difference]: Start difference. First operand 197 states and 287 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:38,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:38,493 INFO L93 Difference]: Finished difference Result 430 states and 626 transitions. [2024-12-02 08:43:38,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:38,494 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-02 08:43:38,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:38,497 INFO L225 Difference]: With dead ends: 430 [2024-12-02 08:43:38,497 INFO L226 Difference]: Without dead ends: 236 [2024-12-02 08:43:38,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 08:43:38,499 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 158 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:38,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 827 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:43:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-12-02 08:43:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 227. [2024-12-02 08:43:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 187 states have (on average 1.374331550802139) internal successors, (257), 188 states have internal predecessors, (257), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:43:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 329 transitions. [2024-12-02 08:43:38,537 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 329 transitions. Word has length 145 [2024-12-02 08:43:38,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:38,538 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 329 transitions. [2024-12-02 08:43:38,538 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:38,538 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 329 transitions. [2024-12-02 08:43:38,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:43:38,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:38,541 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:38,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:43:38,541 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:38,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1114350154, now seen corresponding path program 1 times [2024-12-02 08:43:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840957802] [2024-12-02 08:43:38,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 08:43:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840957802] [2024-12-02 08:43:38,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840957802] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:38,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092652843] [2024-12-02 08:43:38,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:38,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:38,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:38,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:38,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:43:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:39,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:43:39,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:39,134 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:39,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092652843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:39,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:39,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-12-02 08:43:39,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467929727] [2024-12-02 08:43:39,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:39,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:39,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:39,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:39,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:43:39,135 INFO L87 Difference]: Start difference. First operand 227 states and 329 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:39,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:39,185 INFO L93 Difference]: Finished difference Result 457 states and 663 transitions. [2024-12-02 08:43:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-12-02 08:43:39,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:39,189 INFO L225 Difference]: With dead ends: 457 [2024-12-02 08:43:39,189 INFO L226 Difference]: Without dead ends: 233 [2024-12-02 08:43:39,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:43:39,191 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:39,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 682 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:43:39,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-12-02 08:43:39,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2024-12-02 08:43:39,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 192 states have internal predecessors, (261), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:43:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 333 transitions. [2024-12-02 08:43:39,216 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 333 transitions. Word has length 146 [2024-12-02 08:43:39,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:39,216 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 333 transitions. [2024-12-02 08:43:39,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 333 transitions. [2024-12-02 08:43:39,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:43:39,218 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:39,218 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:39,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:43:39,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:39,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:39,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 970184827, now seen corresponding path program 1 times [2024-12-02 08:43:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:39,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165226394] [2024-12-02 08:43:39,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:39,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:39,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:39,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165226394] [2024-12-02 08:43:39,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165226394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:39,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:39,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:43:39,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756066906] [2024-12-02 08:43:39,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:39,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:39,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:39,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:39,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:43:39,703 INFO L87 Difference]: Start difference. First operand 231 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:39,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:39,866 INFO L93 Difference]: Finished difference Result 461 states and 665 transitions. [2024-12-02 08:43:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:39,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-12-02 08:43:39,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:39,869 INFO L225 Difference]: With dead ends: 461 [2024-12-02 08:43:39,869 INFO L226 Difference]: Without dead ends: 233 [2024-12-02 08:43:39,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 08:43:39,871 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 141 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:39,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 871 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:43:39,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-12-02 08:43:39,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 224. [2024-12-02 08:43:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 184 states have (on average 1.358695652173913) internal successors, (250), 185 states have internal predecessors, (250), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:43:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 322 transitions. [2024-12-02 08:43:39,898 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 322 transitions. Word has length 148 [2024-12-02 08:43:39,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:39,898 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 322 transitions. [2024-12-02 08:43:39,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 322 transitions. [2024-12-02 08:43:39,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:43:39,900 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:39,900 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:39,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:43:39,900 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:39,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:39,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1203547643, now seen corresponding path program 1 times [2024-12-02 08:43:39,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:39,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405468134] [2024-12-02 08:43:39,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:39,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:40,528 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 08:43:40,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:40,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405468134] [2024-12-02 08:43:40,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405468134] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:40,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617987564] [2024-12-02 08:43:40,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:40,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:40,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:40,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:40,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:43:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:40,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:43:40,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:41,323 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 08:43:41,386 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 27 treesize of output 19 [2024-12-02 08:43:41,393 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 08:43:41,423 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 19 treesize of output 11 [2024-12-02 08:43:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 1 proven. 131 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 08:43:41,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:41,635 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 36 treesize of output 32 [2024-12-02 08:43:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 08:43:41,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617987564] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:43:41,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:43:41,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 15 [2024-12-02 08:43:41,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155594633] [2024-12-02 08:43:41,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:41,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:43:41,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:41,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:43:41,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:43:41,854 INFO L87 Difference]: Start difference. First operand 224 states and 322 transitions. Second operand has 15 states, 11 states have (on average 6.909090909090909) internal successors, (76), 14 states have internal predecessors, (76), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 3 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 08:43:42,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:42,749 INFO L93 Difference]: Finished difference Result 585 states and 833 transitions. [2024-12-02 08:43:42,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 08:43:42,750 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 6.909090909090909) internal successors, (76), 14 states have internal predecessors, (76), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 3 states have call predecessors, (38), 6 states have call successors, (38) Word has length 148 [2024-12-02 08:43:42,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:42,752 INFO L225 Difference]: With dead ends: 585 [2024-12-02 08:43:42,753 INFO L226 Difference]: Without dead ends: 364 [2024-12-02 08:43:42,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 288 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=269, Invalid=921, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 08:43:42,754 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 897 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:42,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1043 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:43:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-12-02 08:43:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 234. [2024-12-02 08:43:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 192 states have (on average 1.34375) internal successors, (258), 193 states have internal predecessors, (258), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:43:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 330 transitions. [2024-12-02 08:43:42,786 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 330 transitions. Word has length 148 [2024-12-02 08:43:42,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:42,786 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 330 transitions. [2024-12-02 08:43:42,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 6.909090909090909) internal successors, (76), 14 states have internal predecessors, (76), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 3 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 08:43:42,786 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 330 transitions. [2024-12-02 08:43:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:43:42,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:42,788 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:42,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:43:42,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:42,989 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:42,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:42,989 INFO L85 PathProgramCache]: Analyzing trace with hash -370742344, now seen corresponding path program 1 times [2024-12-02 08:43:42,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:42,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166999187] [2024-12-02 08:43:42,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:43,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:43,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166999187] [2024-12-02 08:43:43,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166999187] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:43,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:43,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:43:43,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862647941] [2024-12-02 08:43:43,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:43,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:43:43,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:43,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:43:43,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:43:43,271 INFO L87 Difference]: Start difference. First operand 234 states and 330 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:43,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:43,379 INFO L93 Difference]: Finished difference Result 527 states and 743 transitions. [2024-12-02 08:43:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:43:43,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-02 08:43:43,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:43,381 INFO L225 Difference]: With dead ends: 527 [2024-12-02 08:43:43,381 INFO L226 Difference]: Without dead ends: 296 [2024-12-02 08:43:43,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:43:43,382 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 93 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:43,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1072 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:43:43,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-12-02 08:43:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 293. [2024-12-02 08:43:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 248 states have (on average 1.3588709677419355) internal successors, (337), 250 states have internal predecessors, (337), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:43:43,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 413 transitions. [2024-12-02 08:43:43,410 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 413 transitions. Word has length 149 [2024-12-02 08:43:43,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:43,410 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 413 transitions. [2024-12-02 08:43:43,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:43,410 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 413 transitions. [2024-12-02 08:43:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:43:43,412 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:43,412 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:43,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:43:43,412 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:43,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash -656501539, now seen corresponding path program 1 times [2024-12-02 08:43:43,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:43,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942040140] [2024-12-02 08:43:43,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:43,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:44,483 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:44,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:44,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942040140] [2024-12-02 08:43:44,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942040140] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:44,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:44,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:43:44,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099556935] [2024-12-02 08:43:44,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:44,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:43:44,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:44,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:43:44,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:43:44,485 INFO L87 Difference]: Start difference. First operand 293 states and 413 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:44,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:44,886 INFO L93 Difference]: Finished difference Result 655 states and 922 transitions. [2024-12-02 08:43:44,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:43:44,887 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:43:44,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:44,889 INFO L225 Difference]: With dead ends: 655 [2024-12-02 08:43:44,889 INFO L226 Difference]: Without dead ends: 365 [2024-12-02 08:43:44,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:43:44,891 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 103 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:44,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1916 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:43:44,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-12-02 08:43:44,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 317. [2024-12-02 08:43:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 272 states have (on average 1.3676470588235294) internal successors, (372), 274 states have internal predecessors, (372), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:43:44,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 448 transitions. [2024-12-02 08:43:44,922 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 448 transitions. Word has length 151 [2024-12-02 08:43:44,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:44,923 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 448 transitions. [2024-12-02 08:43:44,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:44,923 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 448 transitions. [2024-12-02 08:43:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:43:44,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:44,925 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:44,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:43:44,925 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:44,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:44,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1243307553, now seen corresponding path program 1 times [2024-12-02 08:43:44,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:44,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710937158] [2024-12-02 08:43:44,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:44,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:45,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:45,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710937158] [2024-12-02 08:43:45,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710937158] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:45,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:45,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:43:45,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645054662] [2024-12-02 08:43:45,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:45,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:43:45,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:45,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:43:45,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:43:45,594 INFO L87 Difference]: Start difference. First operand 317 states and 448 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:45,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:45,778 INFO L93 Difference]: Finished difference Result 672 states and 948 transitions. [2024-12-02 08:43:45,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:43:45,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:43:45,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:45,781 INFO L225 Difference]: With dead ends: 672 [2024-12-02 08:43:45,781 INFO L226 Difference]: Without dead ends: 358 [2024-12-02 08:43:45,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:43:45,783 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 95 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:45,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1460 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:43:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-12-02 08:43:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 313. [2024-12-02 08:43:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 268 states have (on average 1.3656716417910448) internal successors, (366), 270 states have internal predecessors, (366), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:43:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 442 transitions. [2024-12-02 08:43:45,821 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 442 transitions. Word has length 151 [2024-12-02 08:43:45,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:45,822 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 442 transitions. [2024-12-02 08:43:45,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 442 transitions. [2024-12-02 08:43:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:43:45,824 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:45,824 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:45,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:43:45,824 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:45,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:45,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1266726495, now seen corresponding path program 1 times [2024-12-02 08:43:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:45,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407372325] [2024-12-02 08:43:45,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:46,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:46,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407372325] [2024-12-02 08:43:46,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407372325] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:46,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:46,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:43:46,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185026715] [2024-12-02 08:43:46,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:46,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:43:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:46,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:43:46,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:43:46,465 INFO L87 Difference]: Start difference. First operand 313 states and 442 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:46,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:46,811 INFO L93 Difference]: Finished difference Result 630 states and 886 transitions. [2024-12-02 08:43:46,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:43:46,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:43:46,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:46,814 INFO L225 Difference]: With dead ends: 630 [2024-12-02 08:43:46,814 INFO L226 Difference]: Without dead ends: 320 [2024-12-02 08:43:46,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:43:46,815 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 98 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:46,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1231 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:43:46,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-12-02 08:43:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 275. [2024-12-02 08:43:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 232 states have (on average 1.353448275862069) internal successors, (314), 233 states have internal predecessors, (314), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:43:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 386 transitions. [2024-12-02 08:43:46,846 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 386 transitions. Word has length 151 [2024-12-02 08:43:46,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:46,846 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 386 transitions. [2024-12-02 08:43:46,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 386 transitions. [2024-12-02 08:43:46,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:43:46,848 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:46,848 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:46,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:43:46,848 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:46,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:46,849 INFO L85 PathProgramCache]: Analyzing trace with hash 679920481, now seen corresponding path program 1 times [2024-12-02 08:43:46,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:46,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433362389] [2024-12-02 08:43:46,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:46,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:47,854 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:43:47,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:47,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433362389] [2024-12-02 08:43:47,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433362389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:47,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:47,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:43:47,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758047602] [2024-12-02 08:43:47,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:47,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:43:47,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:47,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:43:47,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:43:47,856 INFO L87 Difference]: Start difference. First operand 275 states and 386 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:48,263 INFO L93 Difference]: Finished difference Result 603 states and 841 transitions. [2024-12-02 08:43:48,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:43:48,264 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:43:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:48,265 INFO L225 Difference]: With dead ends: 603 [2024-12-02 08:43:48,265 INFO L226 Difference]: Without dead ends: 331 [2024-12-02 08:43:48,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:43:48,266 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 83 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:48,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2312 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:43:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-12-02 08:43:48,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 322. [2024-12-02 08:43:48,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 273 states have (on average 1.3516483516483517) internal successors, (369), 275 states have internal predecessors, (369), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 08:43:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 449 transitions. [2024-12-02 08:43:48,293 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 449 transitions. Word has length 151 [2024-12-02 08:43:48,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:48,293 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 449 transitions. [2024-12-02 08:43:48,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:43:48,293 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 449 transitions. [2024-12-02 08:43:48,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:43:48,294 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:48,294 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:48,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:43:48,294 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:48,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:48,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1935355510, now seen corresponding path program 1 times [2024-12-02 08:43:48,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:48,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568298466] [2024-12-02 08:43:48,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,343 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:43:48,448 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:43:48,449 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:43:48,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:43:48,452 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:48,602 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:43:48,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:43:48 BoogieIcfgContainer [2024-12-02 08:43:48,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:43:48,606 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:43:48,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:43:48,606 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:43:48,607 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:34" (3/4) ... [2024-12-02 08:43:48,609 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:43:48,609 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:43:48,610 INFO L158 Benchmark]: Toolchain (without parser) took 14878.20ms. Allocated memory was 117.4MB in the beginning and 394.3MB in the end (delta: 276.8MB). Free memory was 92.6MB in the beginning and 241.8MB in the end (delta: -149.3MB). Peak memory consumption was 131.8MB. Max. memory is 16.1GB. [2024-12-02 08:43:48,610 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:48,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.82ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 78.0MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:43:48,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.72ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 74.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:48,610 INFO L158 Benchmark]: Boogie Preprocessor took 72.30ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 69.3MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:43:48,611 INFO L158 Benchmark]: RCFGBuilder took 732.77ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 77.5MB in the end (delta: -8.2MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-12-02 08:43:48,611 INFO L158 Benchmark]: TraceAbstraction took 13784.98ms. Allocated memory was 117.4MB in the beginning and 394.3MB in the end (delta: 276.8MB). Free memory was 77.0MB in the beginning and 241.9MB in the end (delta: -164.9MB). Peak memory consumption was 107.6MB. Max. memory is 16.1GB. [2024-12-02 08:43:48,611 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 394.3MB. Free memory was 241.9MB in the beginning and 241.8MB in the end (delta: 52.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:43:48,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.82ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 78.0MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.72ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 74.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 72.30ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 69.3MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 732.77ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 77.5MB in the end (delta: -8.2MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13784.98ms. Allocated memory was 117.4MB in the beginning and 394.3MB in the end (delta: 276.8MB). Free memory was 77.0MB in the beginning and 241.9MB in the end (delta: -164.9MB). Peak memory consumption was 107.6MB. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 394.3MB. Free memory was 241.9MB in the beginning and 241.8MB in the end (delta: 52.9kB). Peak memory consumption was 8.4MB. 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 117, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 117, overapproximation of someBinaryFLOATComparisonOperation at line 72, overapproximation of someBinaryFLOATComparisonOperation at line 106, overapproximation of someBinaryFLOATComparisonOperation at line 104, overapproximation of someBinaryFLOATComparisonOperation at line 104, overapproximation of someBinaryFLOATComparisonOperation at line 53, overapproximation of someBinaryFLOATComparisonOperation at line 106, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 256; [L22] unsigned long int var_1_1 = 256; [L23] unsigned long int* var_1_1_Pointer = &(var_1_1); [L24] unsigned char var_1_2 = 0; [L24] unsigned char var_1_2 = 0; [L25] unsigned char* var_1_2_Pointer = &(var_1_2); [L26] unsigned short int var_1_3 = 10; [L26] unsigned short int var_1_3 = 10; [L27] unsigned short int* var_1_3_Pointer = &(var_1_3); [L28] unsigned short int var_1_4 = 500; [L28] unsigned short int var_1_4 = 500; [L29] unsigned short int* var_1_4_Pointer = &(var_1_4); [L30] unsigned long int var_1_5 = 0; [L30] unsigned long int var_1_5 = 0; [L31] unsigned long int* var_1_5_Pointer = &(var_1_5); [L32] unsigned long int var_1_6 = 1509114200; [L32] unsigned long int var_1_6 = 1509114200; [L33] unsigned long int* var_1_6_Pointer = &(var_1_6); [L34] unsigned long int var_1_7 = 10; [L34] unsigned long int var_1_7 = 10; [L35] unsigned long int* var_1_7_Pointer = &(var_1_7); [L36] float var_1_8 = 128.9; [L36] float var_1_8 = 128.9; [L37] float* var_1_8_Pointer = &(var_1_8); [L38] float var_1_9 = 63.363; [L38] float var_1_9 = 63.363; [L39] float* var_1_9_Pointer = &(var_1_9); [L40] float var_1_10 = 4.575; [L40] float var_1_10 = 4.575; [L41] float* var_1_10_Pointer = &(var_1_10); [L42] float var_1_11 = 25.5; [L42] float var_1_11 = 25.5; [L43] float* var_1_11_Pointer = &(var_1_11); [L44] unsigned char var_1_12 = 1; [L44] unsigned char var_1_12 = 1; [L45] unsigned char* var_1_12_Pointer = &(var_1_12); [L46] unsigned char var_1_13 = 0; [L46] unsigned char var_1_13 = 0; [L47] unsigned char* var_1_13_Pointer = &(var_1_13); [L48] unsigned char var_1_14 = 1; [L48] unsigned char var_1_14 = 1; [L49] unsigned char* var_1_14_Pointer = &(var_1_14); VAL [isInitial=0, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L121] isInitial = 1 [L122] FCALL initially() [L124] FCALL updateLastVariables() [L125] CALL updateVariables() [L85] var_1_2 = __VERIFIER_nondet_uchar() [L86] EXPR \read(var_1_2) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L86] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L86] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L87] EXPR \read(var_1_2) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L87] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L87] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L88] var_1_3 = __VERIFIER_nondet_ushort() [L89] EXPR \read(var_1_3) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L89] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L89] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L90] EXPR \read(var_1_3) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L90] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L90] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L91] var_1_4 = __VERIFIER_nondet_ushort() [L92] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L92] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L92] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L93] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L93] CALL assume_abort_if_not(var_1_4 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L93] RET assume_abort_if_not(var_1_4 <= 65535) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L94] var_1_5 = __VERIFIER_nondet_ulong() [L95] EXPR \read(var_1_5) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L95] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L95] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L96] EXPR \read(var_1_5) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L96] CALL assume_abort_if_not(var_1_5 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L96] RET assume_abort_if_not(var_1_5 <= 1073741823) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L97] var_1_6 = __VERIFIER_nondet_ulong() [L98] EXPR \read(var_1_6) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L98] CALL assume_abort_if_not(var_1_6 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L98] RET assume_abort_if_not(var_1_6 >= 1073741823) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L99] EXPR \read(var_1_6) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L99] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L99] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L100] var_1_7 = __VERIFIER_nondet_ulong() [L101] EXPR \read(var_1_7) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L101] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L101] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L102] EXPR \read(var_1_7) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L102] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L102] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L103] var_1_9 = __VERIFIER_nondet_float() [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L104] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L104] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L104] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L104] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L105] var_1_10 = __VERIFIER_nondet_float() [L106] EXPR \read(var_1_10) [L106] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L106] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F [L106] EXPR \read(var_1_10) [L106] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L106] EXPR (var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L106] EXPR (var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L106] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L106] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L107] var_1_13 = __VERIFIER_nondet_uchar() [L108] EXPR \read(var_1_13) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L108] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L108] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L109] EXPR \read(var_1_13) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L109] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L109] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L110] var_1_14 = __VERIFIER_nondet_uchar() [L111] EXPR \read(var_1_14) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L111] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L111] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L112] EXPR \read(var_1_14) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L112] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L112] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L125] RET updateVariables() [L126] CALL step() [L53] EXPR \read(*var_1_9_Pointer) [L53] EXPR \read(*var_1_10_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L53] COND FALSE !((*(var_1_9_Pointer)) != (*(var_1_10_Pointer))) [L60] EXPR \read(*var_1_14_Pointer) [L60] (*(var_1_12_Pointer)) = (*(var_1_14_Pointer)) [L62] EXPR \read(*var_1_3_Pointer) [L62] unsigned short int stepLocal_0 = (*(var_1_3_Pointer)); [L63] EXPR \read(*var_1_12_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L63] COND TRUE (*(var_1_12_Pointer)) [L64] EXPR \read(*var_1_4_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L64] COND FALSE !(stepLocal_0 <= (*(var_1_4_Pointer))) [L70] EXPR \read(*var_1_1_Pointer) [L70] unsigned long int stepLocal_1 = (*(var_1_1_Pointer)); [L71] EXPR \read(*var_1_7_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L71] COND TRUE (*(var_1_7_Pointer)) >= stepLocal_1 [L72] EXPR \read(*var_1_9_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L72] EXPR ((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))) [L72] EXPR ((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L72] (*(var_1_8_Pointer)) = ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))) [L76] EXPR \read(*var_1_10_Pointer) [L76] EXPR \read(*var_1_9_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L76] EXPR ((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer))) [L76] EXPR ((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L76] EXPR \read(*var_1_8_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L76] EXPR ((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer))) [L76] EXPR \read(*var_1_8_Pointer) [L76] EXPR ((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L76] COND TRUE (*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer))))) [L77] EXPR \read(*var_1_10_Pointer) [L77] (*(var_1_11_Pointer)) = (*(var_1_10_Pointer)) [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR \read(*var_1_12_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR (*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer)))) [L117] EXPR \read(*var_1_3_Pointer) [L117] EXPR \read(*var_1_4_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1 [L117] EXPR ((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1 VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR (*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer)))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer)))))))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer)))))))) [L117] EXPR \read(*var_1_7_Pointer) [L117] EXPR \read(*var_1_1_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) [L117] EXPR \read(*var_1_8_Pointer) [L117] EXPR \read(*var_1_9_Pointer) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))) [L117] EXPR ((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer)))))))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR (((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1)) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR (((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1)) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1))) && (((*(var_1_9_Pointer)) != (*(var_1_10_Pointer))) ? (((*(var_1_2_Pointer)) || (*(var_1_13_Pointer))) ? ((*(var_1_12_Pointer)) == ((unsigned char) ((*(var_1_13_Pointer)) || (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117] EXPR ((((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1))) && (((*(var_1_9_Pointer)) != (*(var_1_10_Pointer))) ? (((*(var_1_2_Pointer)) || (*(var_1_13_Pointer))) ? ((*(var_1_12_Pointer)) == ((unsigned char) ((*(var_1_13_Pointer)) || (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L117-L118] return ((((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1))) && (((*(var_1_9_Pointer)) != (*(var_1_10_Pointer))) ? (((*(var_1_2_Pointer)) || (*(var_1_13_Pointer))) ? ((*(var_1_12_Pointer)) == ((unsigned char) ((*(var_1_13_Pointer)) || (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L19] reach_error() VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 12, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1939 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1939 mSDsluCounter, 12654 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10226 mSDsCounter, 212 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1722 IncrementalHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 212 mSolverCounterUnsat, 2428 mSDtfsCounter, 1722 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 714 GetRequests, 602 SyntacticMatches, 6 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=322occurred in iteration=11, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 303 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 2217 NumberOfCodeBlocks, 2217 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2199 ConstructedInterpolants, 0 QuantifiedInterpolants, 10113 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1844 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 15 InterpolantComputations, 10 PerfectInterpolantSequences, 8958/9180 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 08:43:48,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:43:50,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:43:50,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:43:50,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:43:50,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:43:50,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:43:50,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:43:50,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:43:50,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:43:50,673 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:43:50,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:43:50,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:43:50,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:43:50,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:43:50,674 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:43:50,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:43:50,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:43:50,674 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:43:50,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:43:50,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:43:50,676 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:43:50,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:43:50,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:43:50,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:43:50,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:43:50,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:43:50,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:43:50,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:43:50,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:43:50,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:43:50,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:43:50,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:43:50,678 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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/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 -> 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d [2024-12-02 08:43:50,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:43:50,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:43:50,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:43:50,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:43:50,910 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:43:50,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i [2024-12-02 08:43:53,515 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/8fc2fe8d4/623c9f1c60924216971a10c36419c591/FLAGce9d09257 [2024-12-02 08:43:53,735 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:43:53,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i [2024-12-02 08:43:53,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/8fc2fe8d4/623c9f1c60924216971a10c36419c591/FLAGce9d09257 [2024-12-02 08:43:54,096 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/data/8fc2fe8d4/623c9f1c60924216971a10c36419c591 [2024-12-02 08:43:54,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:43:54,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:43:54,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:43:54,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:43:54,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:43:54,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f80a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54, skipping insertion in model container [2024-12-02 08:43:54,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:43:54,220 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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-12-02 08:43:54,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:43:54,275 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:43:54,285 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_6ee9fd85-eabd-40b5-9181-99a10f0863b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-12-02 08:43:54,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:43:54,331 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:43:54,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54 WrapperNode [2024-12-02 08:43:54,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:43:54,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:43:54,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:43:54,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:43:54,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,378 INFO L138 Inliner]: procedures = 36, calls = 189, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 591 [2024-12-02 08:43:54,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:43:54,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:43:54,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:43:54,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:43:54,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,416 INFO L175 MemorySlicer]: Split 146 memory accesses to 15 slices as follows [2, 7, 6, 10, 10, 8, 8, 12, 9, 26, 16, 5, 9, 8, 10]. 18 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1]. [2024-12-02 08:43:54,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,439 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:43:54,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:43:54,469 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:43:54,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:43:54,470 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (1/1) ... [2024-12-02 08:43:54,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:43:54,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:54,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:43:54,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-12-02 08:43:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-12-02 08:43:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-12-02 08:43:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2024-12-02 08:43:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2024-12-02 08:43:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2024-12-02 08:43:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2024-12-02 08:43:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2024-12-02 08:43:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#10 [2024-12-02 08:43:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#11 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#12 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#13 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#14 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-12-02 08:43:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#14 [2024-12-02 08:43:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 08:43:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 08:43:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 08:43:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 08:43:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-12-02 08:43:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-12-02 08:43:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 08:43:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#10 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#11 [2024-12-02 08:43:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#12 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#13 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#14 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-12-02 08:43:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-12-02 08:43:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#12 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#13 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#14 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:43:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:43:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 08:43:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 08:43:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#10 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#11 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#12 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#13 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#14 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-12-02 08:43:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-12-02 08:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-12-02 08:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-12-02 08:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-12-02 08:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-12-02 08:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-12-02 08:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-12-02 08:43:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-12-02 08:43:54,777 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:43:54,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:43:55,421 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2024-12-02 08:43:55,421 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:43:55,431 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:43:55,431 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:43:55,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:55 BoogieIcfgContainer [2024-12-02 08:43:55,432 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:43:55,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:43:55,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:43:55,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:43:55,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:43:54" (1/3) ... [2024-12-02 08:43:55,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb5bb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:43:55, skipping insertion in model container [2024-12-02 08:43:55,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:54" (2/3) ... [2024-12-02 08:43:55,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb5bb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:43:55, skipping insertion in model container [2024-12-02 08:43:55,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:55" (3/3) ... [2024-12-02 08:43:55,439 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-25.i [2024-12-02 08:43:55,450 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:43:55,451 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-25.i that has 2 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:43:55,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:43:55,503 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;@617c2f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:43:55,503 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:43:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:43:55,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:43:55,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:55,516 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:55,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:55,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:55,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1167224636, now seen corresponding path program 1 times [2024-12-02 08:43:55,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:55,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41739561] [2024-12-02 08:43:55,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:55,531 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 08:43:55,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:55,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:43:55,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:43:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:56,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:43:56,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-12-02 08:43:56,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:56,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:56,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41739561] [2024-12-02 08:43:56,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41739561] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:56,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:56,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:43:56,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589975569] [2024-12-02 08:43:56,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:56,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:43:56,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:56,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:43:56,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:43:56,073 INFO L87 Difference]: Start difference. First operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:43:56,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:56,097 INFO L93 Difference]: Finished difference Result 241 states and 378 transitions. [2024-12-02 08:43:56,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:43:56,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-12-02 08:43:56,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:56,104 INFO L225 Difference]: With dead ends: 241 [2024-12-02 08:43:56,105 INFO L226 Difference]: Without dead ends: 120 [2024-12-02 08:43:56,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 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 08:43:56,110 INFO L435 NwaCegarLoop]: 176 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, 176 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 08:43:56,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:43:56,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-12-02 08:43:56,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-12-02 08:43:56,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:43:56,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-12-02 08:43:56,146 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2024-12-02 08:43:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:56,147 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-12-02 08:43:56,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:43:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-12-02 08:43:56,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:43:56,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:56,149 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:56,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:43:56,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:56,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:56,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:56,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1643043108, now seen corresponding path program 1 times [2024-12-02 08:43:56,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:56,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347955869] [2024-12-02 08:43:56,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:56,351 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 08:43:56,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:56,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:43:56,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:43:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:56,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:43:56,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:57,866 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 36 treesize of output 24 [2024-12-02 08:43:57,875 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 13 treesize of output 9 [2024-12-02 08:43:57,941 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 08:43:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:43:57,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:58,442 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:43:58,442 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 30 treesize of output 25 [2024-12-02 08:43:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-12-02 08:43:58,715 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:58,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347955869] [2024-12-02 08:43:58,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347955869] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:58,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:58,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 23 [2024-12-02 08:43:58,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406553857] [2024-12-02 08:43:58,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:58,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:43:58,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:58,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:43:58,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:43:58,719 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:43:59,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:59,403 INFO L93 Difference]: Finished difference Result 362 states and 528 transitions. [2024-12-02 08:43:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:43:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2024-12-02 08:43:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:59,406 INFO L225 Difference]: With dead ends: 362 [2024-12-02 08:43:59,407 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 08:43:59,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 265 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:43:59,409 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 640 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:59,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 488 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:43:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 08:43:59,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 126. [2024-12-02 08:43:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:43:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 181 transitions. [2024-12-02 08:43:59,431 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 181 transitions. Word has length 144 [2024-12-02 08:43:59,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:59,432 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 181 transitions. [2024-12-02 08:43:59,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:43:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 181 transitions. [2024-12-02 08:43:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 08:43:59,434 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:59,435 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:59,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:43:59,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:59,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:59,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1671490847, now seen corresponding path program 1 times [2024-12-02 08:43:59,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:59,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959321270] [2024-12-02 08:43:59,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:59,637 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 08:43:59,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:59,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:43:59,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:00,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:44:00,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:00,660 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 36 treesize of output 24 [2024-12-02 08:44:00,662 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 13 treesize of output 9 [2024-12-02 08:44:00,791 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 08:44:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:00,821 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:01,182 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:44:01,182 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 30 treesize of output 25 [2024-12-02 08:44:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-12-02 08:44:01,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:01,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959321270] [2024-12-02 08:44:01,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959321270] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:01,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:01,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 23 [2024-12-02 08:44:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599580751] [2024-12-02 08:44:01,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:01,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:44:01,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:01,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:44:01,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:44:01,393 INFO L87 Difference]: Start difference. First operand 126 states and 181 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:44:02,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:02,054 INFO L93 Difference]: Finished difference Result 368 states and 532 transitions. [2024-12-02 08:44:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:44:02,055 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-12-02 08:44:02,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:02,056 INFO L225 Difference]: With dead ends: 368 [2024-12-02 08:44:02,056 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 08:44:02,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 267 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:44:02,058 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 1421 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:02,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 485 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:44:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 08:44:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 145. [2024-12-02 08:44:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 124 states have (on average 1.403225806451613) internal successors, (174), 124 states have internal predecessors, (174), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:44:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 210 transitions. [2024-12-02 08:44:02,078 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 210 transitions. Word has length 145 [2024-12-02 08:44:02,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:02,079 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 210 transitions. [2024-12-02 08:44:02,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:44:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 210 transitions. [2024-12-02 08:44:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:44:02,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:02,081 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:02,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:02,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:02,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:02,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash 484252723, now seen corresponding path program 1 times [2024-12-02 08:44:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:02,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735655306] [2024-12-02 08:44:02,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:02,283 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 08:44:02,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:02,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:02,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:02,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:44:02,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:02,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:02,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:02,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735655306] [2024-12-02 08:44:02,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735655306] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:02,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:02,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:44:02,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49084882] [2024-12-02 08:44:02,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:02,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:02,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:02,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:02,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:44:02,675 INFO L87 Difference]: Start difference. First operand 145 states and 210 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:02,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:02,716 INFO L93 Difference]: Finished difference Result 290 states and 421 transitions. [2024-12-02 08:44:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:02,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-02 08:44:02,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:02,718 INFO L225 Difference]: With dead ends: 290 [2024-12-02 08:44:02,718 INFO L226 Difference]: Without dead ends: 148 [2024-12-02 08:44:02,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:44:02,719 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:02,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 677 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:44:02,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-12-02 08:44:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-12-02 08:44:02,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 127 states have (on average 1.3937007874015748) internal successors, (177), 127 states have internal predecessors, (177), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:44:02,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 213 transitions. [2024-12-02 08:44:02,733 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 213 transitions. Word has length 147 [2024-12-02 08:44:02,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:02,733 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 213 transitions. [2024-12-02 08:44:02,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 213 transitions. [2024-12-02 08:44:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:44:02,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:02,735 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:02,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:02,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:02,936 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:02,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1066887727, now seen corresponding path program 1 times [2024-12-02 08:44:02,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:02,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654706365] [2024-12-02 08:44:02,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:02,937 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 08:44:02,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:02,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:02,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:03,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:44:03,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:03,258 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 08:44:03,267 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 17 treesize of output 9 [2024-12-02 08:44:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:03,276 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:03,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:03,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654706365] [2024-12-02 08:44:03,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654706365] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:03,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:03,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:44:03,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411432273] [2024-12-02 08:44:03,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:03,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:03,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:03,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:03,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:44:03,278 INFO L87 Difference]: Start difference. First operand 148 states and 213 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:03,370 INFO L93 Difference]: Finished difference Result 419 states and 604 transitions. [2024-12-02 08:44:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:03,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-12-02 08:44:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:03,372 INFO L225 Difference]: With dead ends: 419 [2024-12-02 08:44:03,372 INFO L226 Difference]: Without dead ends: 274 [2024-12-02 08:44:03,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 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 08:44:03,373 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 171 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:03,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 917 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:03,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-12-02 08:44:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 151. [2024-12-02 08:44:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 130 states have (on average 1.3846153846153846) internal successors, (180), 130 states have internal predecessors, (180), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:44:03,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 216 transitions. [2024-12-02 08:44:03,382 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 216 transitions. Word has length 148 [2024-12-02 08:44:03,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:03,383 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 216 transitions. [2024-12-02 08:44:03,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:03,383 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 216 transitions. [2024-12-02 08:44:03,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:44:03,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:03,385 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:03,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:03,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:03,585 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:03,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1207436337, now seen corresponding path program 1 times [2024-12-02 08:44:03,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:03,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345919305] [2024-12-02 08:44:03,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:03,587 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 08:44:03,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:03,588 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:03,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:03,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:44:03,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:04,519 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 42 treesize of output 26 [2024-12-02 08:44:04,538 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 08:44:04,560 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 17 treesize of output 9 [2024-12-02 08:44:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:04,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:04,624 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 22 [2024-12-02 08:44:04,627 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:44:04,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:04,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2024-12-02 08:44:04,989 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:44:04,989 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 30 treesize of output 25 [2024-12-02 08:44:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-12-02 08:44:05,185 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:05,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345919305] [2024-12-02 08:44:05,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345919305] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:05,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:05,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 24 [2024-12-02 08:44:05,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051048760] [2024-12-02 08:44:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:05,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:44:05,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:05,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:44:05,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:44:05,187 INFO L87 Difference]: Start difference. First operand 151 states and 216 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:44:05,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:05,622 INFO L93 Difference]: Finished difference Result 299 states and 429 transitions. [2024-12-02 08:44:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:44:05,623 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-12-02 08:44:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:05,623 INFO L225 Difference]: With dead ends: 299 [2024-12-02 08:44:05,623 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 08:44:05,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 272 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:44:05,624 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1037 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:05,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 483 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:44:05,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 08:44:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2024-12-02 08:44:05,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 127 states have (on average 1.3858267716535433) internal successors, (176), 127 states have internal predecessors, (176), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:44:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 212 transitions. [2024-12-02 08:44:05,635 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 212 transitions. Word has length 148 [2024-12-02 08:44:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:05,635 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 212 transitions. [2024-12-02 08:44:05,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:44:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 212 transitions. [2024-12-02 08:44:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:44:05,637 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:05,637 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:05,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:05,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:05,837 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:05,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1942528822, now seen corresponding path program 1 times [2024-12-02 08:44:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947831969] [2024-12-02 08:44:05,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:05,839 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 08:44:05,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:05,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:05,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:06,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:44:06,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:06,191 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 12 treesize of output 8 [2024-12-02 08:44:06,216 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 17 treesize of output 9 [2024-12-02 08:44:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:06,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:06,223 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:06,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947831969] [2024-12-02 08:44:06,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947831969] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:06,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:06,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:44:06,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45168443] [2024-12-02 08:44:06,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:06,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:06,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:06,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:44:06,224 INFO L87 Difference]: Start difference. First operand 148 states and 212 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:06,304 INFO L93 Difference]: Finished difference Result 419 states and 601 transitions. [2024-12-02 08:44:06,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:06,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-02 08:44:06,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:06,306 INFO L225 Difference]: With dead ends: 419 [2024-12-02 08:44:06,306 INFO L226 Difference]: Without dead ends: 274 [2024-12-02 08:44:06,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 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 08:44:06,307 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 158 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:06,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 908 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-12-02 08:44:06,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 149. [2024-12-02 08:44:06,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 128 states have (on average 1.3828125) internal successors, (177), 128 states have internal predecessors, (177), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:44:06,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 213 transitions. [2024-12-02 08:44:06,323 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 213 transitions. Word has length 149 [2024-12-02 08:44:06,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:06,324 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 213 transitions. [2024-12-02 08:44:06,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 213 transitions. [2024-12-02 08:44:06,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:44:06,326 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:06,326 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:06,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:44:06,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:06,526 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:06,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:06,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2004568436, now seen corresponding path program 1 times [2024-12-02 08:44:06,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:06,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023580306] [2024-12-02 08:44:06,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:06,527 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 08:44:06,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:06,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:06,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:06,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:44:06,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:07,431 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 42 treesize of output 26 [2024-12-02 08:44:07,448 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 08:44:07,492 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 17 treesize of output 9 [2024-12-02 08:44:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:07,511 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:07,578 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 22 [2024-12-02 08:44:07,581 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:44:07,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:07,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2024-12-02 08:44:07,913 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:44:07,913 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 30 treesize of output 25 [2024-12-02 08:44:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-12-02 08:44:08,096 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:08,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023580306] [2024-12-02 08:44:08,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023580306] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:08,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:08,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 24 [2024-12-02 08:44:08,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844489254] [2024-12-02 08:44:08,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:08,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:44:08,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:08,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:44:08,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:44:08,098 INFO L87 Difference]: Start difference. First operand 149 states and 213 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:44:08,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:08,469 INFO L93 Difference]: Finished difference Result 295 states and 423 transitions. [2024-12-02 08:44:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:44:08,470 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2024-12-02 08:44:08,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:08,471 INFO L225 Difference]: With dead ends: 295 [2024-12-02 08:44:08,471 INFO L226 Difference]: Without dead ends: 149 [2024-12-02 08:44:08,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:44:08,472 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 892 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:08,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 479 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:44:08,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-12-02 08:44:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127. [2024-12-02 08:44:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:44:08,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 180 transitions. [2024-12-02 08:44:08,479 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 180 transitions. Word has length 149 [2024-12-02 08:44:08,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:08,479 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 180 transitions. [2024-12-02 08:44:08,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:44:08,480 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2024-12-02 08:44:08,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:44:08,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:08,480 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:08,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:08,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:08,681 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:08,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:08,681 INFO L85 PathProgramCache]: Analyzing trace with hash -370742344, now seen corresponding path program 1 times [2024-12-02 08:44:08,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:08,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730024216] [2024-12-02 08:44:08,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:08,682 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 08:44:08,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:08,683 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:08,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:09,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:44:09,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:09,089 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 25 treesize of output 17 [2024-12-02 08:44:09,092 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 21 treesize of output 13 [2024-12-02 08:44:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:09,109 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:09,109 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730024216] [2024-12-02 08:44:09,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730024216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:09,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:09,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:44:09,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451114831] [2024-12-02 08:44:09,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:09,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:44:09,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:09,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:44:09,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:44:09,110 INFO L87 Difference]: Start difference. First operand 127 states and 180 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:09,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:09,249 INFO L93 Difference]: Finished difference Result 313 states and 443 transitions. [2024-12-02 08:44:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:09,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-02 08:44:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:09,251 INFO L225 Difference]: With dead ends: 313 [2024-12-02 08:44:09,251 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 08:44:09,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:44:09,252 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 74 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:09,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 989 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 08:44:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2024-12-02 08:44:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.376543209876543) internal successors, (223), 163 states have internal predecessors, (223), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 08:44:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 263 transitions. [2024-12-02 08:44:09,263 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 263 transitions. Word has length 149 [2024-12-02 08:44:09,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:09,263 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 263 transitions. [2024-12-02 08:44:09,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 263 transitions. [2024-12-02 08:44:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:09,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:09,264 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:09,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:09,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:09,465 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:09,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:09,465 INFO L85 PathProgramCache]: Analyzing trace with hash -656501539, now seen corresponding path program 1 times [2024-12-02 08:44:09,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:09,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247234838] [2024-12-02 08:44:09,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:09,466 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 08:44:09,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:09,468 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:09,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:09,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:44:09,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:10,258 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 15 treesize of output 7 [2024-12-02 08:44:10,264 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 24 treesize of output 16 [2024-12-02 08:44:10,267 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 20 treesize of output 12 [2024-12-02 08:44:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 10 proven. 338 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 08:44:10,311 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:10,399 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 26 [2024-12-02 08:44:10,442 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 31 treesize of output 23 [2024-12-02 08:44:10,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:10,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247234838] [2024-12-02 08:44:10,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247234838] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:10,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [488291791] [2024-12-02 08:44:10,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:10,541 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:44:10,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:44:10,543 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:44:10,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-12-02 08:44:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:11,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:44:11,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:12,505 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 08:44:13,804 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 70 treesize of output 34 [2024-12-02 08:44:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:44:13,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:14,486 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 54 treesize of output 42 [2024-12-02 08:44:14,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [488291791] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:14,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:44:14,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2024-12-02 08:44:14,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400387987] [2024-12-02 08:44:14,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:44:14,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:44:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:14,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:44:14,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:44:14,688 INFO L87 Difference]: Start difference. First operand 186 states and 263 transitions. Second operand has 17 states, 16 states have (on average 7.1875) internal successors, (115), 16 states have internal predecessors, (115), 5 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 5 states have call successors, (36) [2024-12-02 08:44:19,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:19,209 INFO L93 Difference]: Finished difference Result 569 states and 796 transitions. [2024-12-02 08:44:19,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 08:44:19,210 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.1875) internal successors, (115), 16 states have internal predecessors, (115), 5 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 5 states have call successors, (36) Word has length 151 [2024-12-02 08:44:19,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:19,212 INFO L225 Difference]: With dead ends: 569 [2024-12-02 08:44:19,212 INFO L226 Difference]: Without dead ends: 386 [2024-12-02 08:44:19,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 384 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=572, Invalid=2968, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 08:44:19,214 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 777 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:19,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1301 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 08:44:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-12-02 08:44:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 371. [2024-12-02 08:44:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 322 states have (on average 1.360248447204969) internal successors, (438), 325 states have internal predecessors, (438), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 08:44:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 518 transitions. [2024-12-02 08:44:19,243 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 518 transitions. Word has length 151 [2024-12-02 08:44:19,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:19,243 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 518 transitions. [2024-12-02 08:44:19,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.1875) internal successors, (115), 16 states have internal predecessors, (115), 5 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 5 states have call successors, (36) [2024-12-02 08:44:19,244 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 518 transitions. [2024-12-02 08:44:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:19,245 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:19,245 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:19,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:19,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-12-02 08:44:19,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:44:19,645 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:19,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash -538711839, now seen corresponding path program 1 times [2024-12-02 08:44:19,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:19,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302233027] [2024-12-02 08:44:19,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:19,646 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 08:44:19,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:19,648 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:19,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:19,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:44:19,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:20,599 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 31 treesize of output 23 [2024-12-02 08:44:20,603 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 08:44:20,608 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 23 treesize of output 15 [2024-12-02 08:44:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 10 proven. 386 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-12-02 08:44:20,652 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:20,898 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:20,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:20,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302233027] [2024-12-02 08:44:20,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302233027] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:20,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:20,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-12-02 08:44:20,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713231261] [2024-12-02 08:44:20,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:20,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:20,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:20,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:20,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:44:20,900 INFO L87 Difference]: Start difference. First operand 371 states and 518 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:21,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:21,039 INFO L93 Difference]: Finished difference Result 751 states and 1042 transitions. [2024-12-02 08:44:21,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:21,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:21,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:21,041 INFO L225 Difference]: With dead ends: 751 [2024-12-02 08:44:21,041 INFO L226 Difference]: Without dead ends: 383 [2024-12-02 08:44:21,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:44:21,042 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 79 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:21,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 708 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:21,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-12-02 08:44:21,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 295. [2024-12-02 08:44:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 250 states have (on average 1.336) internal successors, (334), 251 states have internal predecessors, (334), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:44:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 406 transitions. [2024-12-02 08:44:21,068 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 406 transitions. Word has length 151 [2024-12-02 08:44:21,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:21,068 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 406 transitions. [2024-12-02 08:44:21,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 406 transitions. [2024-12-02 08:44:21,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:21,069 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:21,070 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:21,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:21,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:21,270 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:21,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:21,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1125517853, now seen corresponding path program 1 times [2024-12-02 08:44:21,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:21,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590538251] [2024-12-02 08:44:21,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:21,271 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 08:44:21,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:21,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:21,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:21,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 08:44:21,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:24,476 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 34 treesize of output 30 [2024-12-02 08:44:25,314 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 49 treesize of output 37 [2024-12-02 08:44:25,461 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 72 treesize of output 60 [2024-12-02 08:44:25,464 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 67 treesize of output 51 [2024-12-02 08:44:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 11 proven. 505 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 08:44:25,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:27,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:27,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590538251] [2024-12-02 08:44:27,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590538251] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:27,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:27,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [31] total 40 [2024-12-02 08:44:27,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456599087] [2024-12-02 08:44:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:27,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:44:27,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:27,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:44:27,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1428, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:44:27,007 INFO L87 Difference]: Start difference. First operand 295 states and 406 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:28,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:28,622 INFO L93 Difference]: Finished difference Result 827 states and 1129 transitions. [2024-12-02 08:44:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:44:28,624 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:28,626 INFO L225 Difference]: With dead ends: 827 [2024-12-02 08:44:28,626 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 08:44:28,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=192, Invalid=2160, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 08:44:28,627 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 244 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:28,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1893 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:44:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 08:44:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 421. [2024-12-02 08:44:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 364 states have (on average 1.3461538461538463) internal successors, (490), 367 states have internal predecessors, (490), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:44:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 578 transitions. [2024-12-02 08:44:28,670 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 578 transitions. Word has length 151 [2024-12-02 08:44:28,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:28,671 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 578 transitions. [2024-12-02 08:44:28,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 578 transitions. [2024-12-02 08:44:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:28,672 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:28,672 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:28,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:28,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:28,872 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:28,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:28,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1527168024, now seen corresponding path program 1 times [2024-12-02 08:44:28,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:28,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850272320] [2024-12-02 08:44:28,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:28,873 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 08:44:28,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:28,875 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:28,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:29,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:44:29,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:29,352 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 34 treesize of output 30 [2024-12-02 08:44:29,448 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 38 treesize of output 30 [2024-12-02 08:44:29,486 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 42 treesize of output 34 [2024-12-02 08:44:29,488 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 26 [2024-12-02 08:44:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-12-02 08:44:29,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:29,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:29,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850272320] [2024-12-02 08:44:29,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850272320] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:29,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:29,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 12 [2024-12-02 08:44:29,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520680300] [2024-12-02 08:44:29,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:29,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:44:29,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:29,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:44:29,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:44:29,833 INFO L87 Difference]: Start difference. First operand 421 states and 578 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:30,627 INFO L93 Difference]: Finished difference Result 860 states and 1175 transitions. [2024-12-02 08:44:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:44:30,628 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:30,631 INFO L225 Difference]: With dead ends: 860 [2024-12-02 08:44:30,631 INFO L226 Difference]: Without dead ends: 442 [2024-12-02 08:44:30,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:44:30,632 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 83 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:30,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1781 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:44:30,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-12-02 08:44:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 389. [2024-12-02 08:44:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 332 states have (on average 1.3373493975903614) internal successors, (444), 335 states have internal predecessors, (444), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:44:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 532 transitions. [2024-12-02 08:44:30,696 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 532 transitions. Word has length 151 [2024-12-02 08:44:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:30,696 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 532 transitions. [2024-12-02 08:44:30,696 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 532 transitions. [2024-12-02 08:44:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:30,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:30,697 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:30,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:30,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:30,897 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:30,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:30,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1794806900, now seen corresponding path program 1 times [2024-12-02 08:44:30,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:30,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760297115] [2024-12-02 08:44:30,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:30,898 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 08:44:30,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:30,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:30,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:31,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:44:31,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:32,458 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 70 treesize of output 34 [2024-12-02 08:44:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:44:32,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:32,859 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:44:32,859 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 46 [2024-12-02 08:44:32,966 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:32,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760297115] [2024-12-02 08:44:32,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760297115] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1821162932] [2024-12-02 08:44:32,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:32,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:44:32,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:44:32,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:44:32,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-12-02 08:44:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:33,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:44:33,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:34,041 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 46 treesize of output 22 [2024-12-02 08:44:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:34,076 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:34,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1821162932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:34,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:34,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-12-02 08:44:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360216333] [2024-12-02 08:44:34,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:34,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:34,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:34,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:34,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:44:34,077 INFO L87 Difference]: Start difference. First operand 389 states and 532 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:34,461 INFO L93 Difference]: Finished difference Result 1068 states and 1457 transitions. [2024-12-02 08:44:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:34,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:34,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:34,464 INFO L225 Difference]: With dead ends: 1068 [2024-12-02 08:44:34,464 INFO L226 Difference]: Without dead ends: 682 [2024-12-02 08:44:34,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 362 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:44:34,465 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 96 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:34,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 634 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:44:34,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-12-02 08:44:34,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 533. [2024-12-02 08:44:34,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 455 states have (on average 1.3318681318681318) internal successors, (606), 460 states have internal predecessors, (606), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 08:44:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 726 transitions. [2024-12-02 08:44:34,548 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 726 transitions. Word has length 151 [2024-12-02 08:44:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:34,549 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 726 transitions. [2024-12-02 08:44:34,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 726 transitions. [2024-12-02 08:44:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:34,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:34,550 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:34,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:44:34,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-12-02 08:44:34,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:44:34,951 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:34,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:34,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1093742322, now seen corresponding path program 1 times [2024-12-02 08:44:34,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:34,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093498630] [2024-12-02 08:44:34,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:34,952 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 08:44:34,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:34,954 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:34,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:35,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:44:35,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:35,364 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 08:44:35,524 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 61 treesize of output 37 [2024-12-02 08:44:35,571 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 70 treesize of output 34 [2024-12-02 08:44:35,694 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:35,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:35,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:35,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093498630] [2024-12-02 08:44:35,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093498630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:35,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:35,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:44:35,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612697082] [2024-12-02 08:44:35,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:35,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:44:35,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:35,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:44:35,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:44:35,696 INFO L87 Difference]: Start difference. First operand 533 states and 726 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:37,354 INFO L93 Difference]: Finished difference Result 1543 states and 2097 transitions. [2024-12-02 08:44:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:44:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:37,358 INFO L225 Difference]: With dead ends: 1543 [2024-12-02 08:44:37,359 INFO L226 Difference]: Without dead ends: 1013 [2024-12-02 08:44:37,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:44:37,360 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 221 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:37,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1485 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:44:37,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2024-12-02 08:44:37,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 639. [2024-12-02 08:44:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 561 states have (on average 1.3368983957219251) internal successors, (750), 566 states have internal predecessors, (750), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 08:44:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 870 transitions. [2024-12-02 08:44:37,436 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 870 transitions. Word has length 151 [2024-12-02 08:44:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:37,436 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 870 transitions. [2024-12-02 08:44:37,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 870 transitions. [2024-12-02 08:44:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:37,438 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:37,438 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:37,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:37,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:37,639 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:37,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:37,639 INFO L85 PathProgramCache]: Analyzing trace with hash -693312443, now seen corresponding path program 1 times [2024-12-02 08:44:37,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:37,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349620640] [2024-12-02 08:44:37,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:37,640 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 08:44:37,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:37,641 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:37,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:37,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:44:37,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:38,915 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 22 treesize of output 10 [2024-12-02 08:44:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 326 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-12-02 08:44:38,932 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:39,079 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:39,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349620640] [2024-12-02 08:44:39,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349620640] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:39,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:39,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-12-02 08:44:39,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349978209] [2024-12-02 08:44:39,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:39,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:39,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:39,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:39,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:44:39,081 INFO L87 Difference]: Start difference. First operand 639 states and 870 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:39,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:39,305 INFO L93 Difference]: Finished difference Result 1551 states and 2108 transitions. [2024-12-02 08:44:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:39,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:39,313 INFO L225 Difference]: With dead ends: 1551 [2024-12-02 08:44:39,313 INFO L226 Difference]: Without dead ends: 915 [2024-12-02 08:44:39,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:44:39,314 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 158 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:39,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 586 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:39,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-12-02 08:44:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 911. [2024-12-02 08:44:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 795 states have (on average 1.3257861635220125) internal successors, (1054), 804 states have internal predecessors, (1054), 88 states have call successors, (88), 27 states have call predecessors, (88), 27 states have return successors, (88), 79 states have call predecessors, (88), 88 states have call successors, (88) [2024-12-02 08:44:39,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1230 transitions. [2024-12-02 08:44:39,392 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1230 transitions. Word has length 151 [2024-12-02 08:44:39,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:39,392 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1230 transitions. [2024-12-02 08:44:39,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1230 transitions. [2024-12-02 08:44:39,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:39,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:39,394 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:39,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:39,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:39,595 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:39,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:39,595 INFO L85 PathProgramCache]: Analyzing trace with hash 520714369, now seen corresponding path program 1 times [2024-12-02 08:44:39,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:39,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937364464] [2024-12-02 08:44:39,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:39,595 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 08:44:39,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:39,597 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:39,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:39,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:44:39,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:40,786 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 16 treesize of output 8 [2024-12-02 08:44:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 326 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-12-02 08:44:40,802 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:40,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:40,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937364464] [2024-12-02 08:44:40,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937364464] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:40,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:40,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-12-02 08:44:40,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990109292] [2024-12-02 08:44:40,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:40,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:40,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:40,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:40,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:44:40,935 INFO L87 Difference]: Start difference. First operand 911 states and 1230 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:41,146 INFO L93 Difference]: Finished difference Result 1823 states and 2451 transitions. [2024-12-02 08:44:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:41,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:41,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:41,149 INFO L225 Difference]: With dead ends: 1823 [2024-12-02 08:44:41,149 INFO L226 Difference]: Without dead ends: 915 [2024-12-02 08:44:41,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:44:41,150 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 162 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:41,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 544 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-12-02 08:44:41,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 711. [2024-12-02 08:44:41,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 630 states have (on average 1.3158730158730159) internal successors, (829), 635 states have internal predecessors, (829), 60 states have call successors, (60), 20 states have call predecessors, (60), 20 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 08:44:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 949 transitions. [2024-12-02 08:44:41,239 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 949 transitions. Word has length 151 [2024-12-02 08:44:41,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:41,239 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 949 transitions. [2024-12-02 08:44:41,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 949 transitions. [2024-12-02 08:44:41,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:41,241 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:41,241 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:41,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:41,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:41,442 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:41,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1622208826, now seen corresponding path program 1 times [2024-12-02 08:44:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:41,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495550717] [2024-12-02 08:44:41,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:41,443 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 08:44:41,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:41,444 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:41,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:41,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:44:41,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:42,693 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 109 treesize of output 61 [2024-12-02 08:44:42,697 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 49 treesize of output 25 [2024-12-02 08:44:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:44:42,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:42,972 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 81 treesize of output 57 [2024-12-02 08:44:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:43,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:43,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495550717] [2024-12-02 08:44:43,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495550717] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:43,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:43,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 08:44:43,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468090459] [2024-12-02 08:44:43,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:43,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:43,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:43,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:43,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:44:43,027 INFO L87 Difference]: Start difference. First operand 711 states and 949 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:43,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:43,522 INFO L93 Difference]: Finished difference Result 1532 states and 2041 transitions. [2024-12-02 08:44:43,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:43,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:43,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:43,526 INFO L225 Difference]: With dead ends: 1532 [2024-12-02 08:44:43,526 INFO L226 Difference]: Without dead ends: 824 [2024-12-02 08:44:43,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:44:43,528 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 120 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:43,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 555 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:44:43,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-12-02 08:44:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 711. [2024-12-02 08:44:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 630 states have (on average 1.3126984126984127) internal successors, (827), 635 states have internal predecessors, (827), 60 states have call successors, (60), 20 states have call predecessors, (60), 20 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 08:44:43,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 947 transitions. [2024-12-02 08:44:43,627 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 947 transitions. Word has length 151 [2024-12-02 08:44:43,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:43,628 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 947 transitions. [2024-12-02 08:44:43,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:43,628 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 947 transitions. [2024-12-02 08:44:43,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:43,629 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:43,629 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:43,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:43,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:43,830 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:43,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:43,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1762757436, now seen corresponding path program 1 times [2024-12-02 08:44:43,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:43,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199436472] [2024-12-02 08:44:43,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:43,831 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 08:44:43,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:43,832 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:43,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:44,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 08:44:44,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:45,007 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 70 treesize of output 34 [2024-12-02 08:44:45,229 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 08:44:45,581 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 61 treesize of output 37 [2024-12-02 08:44:45,666 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 76 treesize of output 40 [2024-12-02 08:44:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:44:45,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:46,764 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:46,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:46,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199436472] [2024-12-02 08:44:46,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199436472] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:46,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:46,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 24 [2024-12-02 08:44:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418469542] [2024-12-02 08:44:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:46,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:44:46,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:46,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:44:46,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:44:46,766 INFO L87 Difference]: Start difference. First operand 711 states and 947 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:48,904 INFO L93 Difference]: Finished difference Result 2261 states and 2994 transitions. [2024-12-02 08:44:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:44:48,904 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:48,908 INFO L225 Difference]: With dead ends: 2261 [2024-12-02 08:44:48,908 INFO L226 Difference]: Without dead ends: 1553 [2024-12-02 08:44:48,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:44:48,909 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 215 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:48,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 2153 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 08:44:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-12-02 08:44:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1205. [2024-12-02 08:44:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1056 states have (on average 1.2973484848484849) internal successors, (1370), 1068 states have internal predecessors, (1370), 110 states have call successors, (110), 38 states have call predecessors, (110), 38 states have return successors, (110), 98 states have call predecessors, (110), 110 states have call successors, (110) [2024-12-02 08:44:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1590 transitions. [2024-12-02 08:44:49,030 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1590 transitions. Word has length 151 [2024-12-02 08:44:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:49,030 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1590 transitions. [2024-12-02 08:44:49,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1590 transitions. [2024-12-02 08:44:49,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:49,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:49,033 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:49,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:44:49,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:49,233 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:49,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:49,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1061692858, now seen corresponding path program 1 times [2024-12-02 08:44:49,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:49,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056568690] [2024-12-02 08:44:49,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:49,234 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 08:44:49,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:49,236 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:49,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:49,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:44:49,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:50,672 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 109 treesize of output 61 [2024-12-02 08:44:50,675 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 49 treesize of output 25 [2024-12-02 08:44:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:44:50,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:51,028 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 81 treesize of output 57 [2024-12-02 08:44:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:44:51,078 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:51,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056568690] [2024-12-02 08:44:51,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056568690] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:51,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:51,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 08:44:51,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308671280] [2024-12-02 08:44:51,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:51,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:51,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:51,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:51,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:44:51,080 INFO L87 Difference]: Start difference. First operand 1205 states and 1590 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:51,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:51,591 INFO L93 Difference]: Finished difference Result 2521 states and 3324 transitions. [2024-12-02 08:44:51,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:51,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-12-02 08:44:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:51,595 INFO L225 Difference]: With dead ends: 2521 [2024-12-02 08:44:51,595 INFO L226 Difference]: Without dead ends: 1319 [2024-12-02 08:44:51,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:44:51,596 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 186 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:51,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 423 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:44:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-12-02 08:44:51,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1205. [2024-12-02 08:44:51,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1056 states have (on average 1.293560606060606) internal successors, (1366), 1068 states have internal predecessors, (1366), 110 states have call successors, (110), 38 states have call predecessors, (110), 38 states have return successors, (110), 98 states have call predecessors, (110), 110 states have call successors, (110) [2024-12-02 08:44:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1586 transitions. [2024-12-02 08:44:51,754 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1586 transitions. Word has length 151 [2024-12-02 08:44:51,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:51,755 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1586 transitions. [2024-12-02 08:44:51,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:44:51,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1586 transitions. [2024-12-02 08:44:51,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:44:51,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:51,757 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:51,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:51,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:51,958 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:51,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1048132664, now seen corresponding path program 1 times [2024-12-02 08:44:51,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:51,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809349493] [2024-12-02 08:44:51,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:51,959 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 08:44:51,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:51,960 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:51,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:52,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:44:52,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:44:52,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:52,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:52,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809349493] [2024-12-02 08:44:52,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809349493] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:52,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:52,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:44:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438859188] [2024-12-02 08:44:52,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:52,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:44:52,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:52,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:44:52,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:44:52,316 INFO L87 Difference]: Start difference. First operand 1205 states and 1586 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:44:52,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:52,465 INFO L93 Difference]: Finished difference Result 2407 states and 3169 transitions. [2024-12-02 08:44:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:44:52,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-12-02 08:44:52,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:52,469 INFO L225 Difference]: With dead ends: 2407 [2024-12-02 08:44:52,469 INFO L226 Difference]: Without dead ends: 1205 [2024-12-02 08:44:52,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 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 08:44:52,470 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 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 08:44:52,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:44:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-12-02 08:44:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2024-12-02 08:44:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1056 states have (on average 1.2916666666666667) internal successors, (1364), 1068 states have internal predecessors, (1364), 110 states have call successors, (110), 38 states have call predecessors, (110), 38 states have return successors, (110), 98 states have call predecessors, (110), 110 states have call successors, (110) [2024-12-02 08:44:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1584 transitions. [2024-12-02 08:44:52,675 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1584 transitions. Word has length 151 [2024-12-02 08:44:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:52,676 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1584 transitions. [2024-12-02 08:44:52,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:44:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1584 transitions. [2024-12-02 08:44:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:44:52,679 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:52,679 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:52,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:52,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:52,879 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:52,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:52,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1074143994, now seen corresponding path program 1 times [2024-12-02 08:44:52,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:52,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346392724] [2024-12-02 08:44:52,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:52,880 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 08:44:52,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:52,882 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:52,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:44:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:53,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:44:53,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:55,461 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 22 treesize of output 10 [2024-12-02 08:44:55,465 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 16 treesize of output 8 [2024-12-02 08:44:55,501 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 31 proven. 401 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 08:44:55,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:56,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:56,038 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 31 treesize of output 30 [2024-12-02 08:44:56,220 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:56,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346392724] [2024-12-02 08:44:56,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346392724] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:56,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [453031207] [2024-12-02 08:44:56,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:56,220 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:44:56,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:44:56,222 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:44:56,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-12-02 08:44:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:57,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:44:57,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:58,300 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 08:44:59,944 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 15 treesize of output 7 [2024-12-02 08:44:59,947 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 16 treesize of output 8 [2024-12-02 08:45:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 9 proven. 347 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-12-02 08:45:00,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:00,032 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 23 treesize of output 15 [2024-12-02 08:45:00,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [453031207] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:00,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:45:00,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10] total 28 [2024-12-02 08:45:00,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078282406] [2024-12-02 08:45:00,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:45:00,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 08:45:00,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:00,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 08:45:00,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 08:45:00,226 INFO L87 Difference]: Start difference. First operand 1205 states and 1584 transitions. Second operand has 29 states, 25 states have (on average 5.32) internal successors, (133), 24 states have internal predecessors, (133), 9 states have call successors, (36), 8 states have call predecessors, (36), 9 states have return successors, (36), 6 states have call predecessors, (36), 9 states have call successors, (36) [2024-12-02 08:45:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:03,546 INFO L93 Difference]: Finished difference Result 3318 states and 4299 transitions. [2024-12-02 08:45:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 08:45:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 5.32) internal successors, (133), 24 states have internal predecessors, (133), 9 states have call successors, (36), 8 states have call predecessors, (36), 9 states have return successors, (36), 6 states have call predecessors, (36), 9 states have call successors, (36) Word has length 152 [2024-12-02 08:45:03,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:03,554 INFO L225 Difference]: With dead ends: 3318 [2024-12-02 08:45:03,554 INFO L226 Difference]: Without dead ends: 2116 [2024-12-02 08:45:03,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=813, Invalid=3219, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 08:45:03,558 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1266 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 3489 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:03,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 3489 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 08:45:03,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2024-12-02 08:45:03,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1623. [2024-12-02 08:45:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1409 states have (on average 1.2810503903477644) internal successors, (1805), 1424 states have internal predecessors, (1805), 154 states have call successors, (154), 59 states have call predecessors, (154), 59 states have return successors, (154), 139 states have call predecessors, (154), 154 states have call successors, (154) [2024-12-02 08:45:03,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2113 transitions. [2024-12-02 08:45:03,802 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2113 transitions. Word has length 152 [2024-12-02 08:45:03,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:03,802 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2113 transitions. [2024-12-02 08:45:03,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 5.32) internal successors, (133), 24 states have internal predecessors, (133), 9 states have call successors, (36), 8 states have call predecessors, (36), 9 states have return successors, (36), 6 states have call predecessors, (36), 9 states have call successors, (36) [2024-12-02 08:45:03,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2113 transitions. [2024-12-02 08:45:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:45:03,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:03,804 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:03,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:04,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-12-02 08:45:04,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:45:04,205 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:04,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:04,205 INFO L85 PathProgramCache]: Analyzing trace with hash -614799748, now seen corresponding path program 1 times [2024-12-02 08:45:04,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:04,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206137993] [2024-12-02 08:45:04,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:04,205 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 08:45:04,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:04,207 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:04,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:04,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 08:45:04,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:06,915 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 70 treesize of output 34 [2024-12-02 08:45:07,242 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 08:45:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:45:07,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:08,993 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:08,994 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:08,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206137993] [2024-12-02 08:45:08,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206137993] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:08,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:08,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [16] total 29 [2024-12-02 08:45:08,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015433216] [2024-12-02 08:45:08,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:08,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:45:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:08,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:45:08,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:45:08,995 INFO L87 Difference]: Start difference. First operand 1623 states and 2113 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:11,803 INFO L93 Difference]: Finished difference Result 3839 states and 4962 transitions. [2024-12-02 08:45:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:45:11,804 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 152 [2024-12-02 08:45:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:11,808 INFO L225 Difference]: With dead ends: 3839 [2024-12-02 08:45:11,809 INFO L226 Difference]: Without dead ends: 2244 [2024-12-02 08:45:11,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:45:11,811 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 504 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:11,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 2883 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:45:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2024-12-02 08:45:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 1655. [2024-12-02 08:45:12,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1437 states have (on average 1.2832289491997217) internal successors, (1844), 1453 states have internal predecessors, (1844), 156 states have call successors, (156), 61 states have call predecessors, (156), 61 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 08:45:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2156 transitions. [2024-12-02 08:45:12,037 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2156 transitions. Word has length 152 [2024-12-02 08:45:12,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:12,037 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2156 transitions. [2024-12-02 08:45:12,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2156 transitions. [2024-12-02 08:45:12,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:12,039 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:12,039 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:12,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:12,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:12,239 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:12,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:12,240 INFO L85 PathProgramCache]: Analyzing trace with hash 377079656, now seen corresponding path program 1 times [2024-12-02 08:45:12,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:12,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121441735] [2024-12-02 08:45:12,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:12,240 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 08:45:12,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:12,242 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:12,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:12,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:45:12,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:12,593 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:12,594 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:12,594 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:12,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121441735] [2024-12-02 08:45:12,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121441735] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:12,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:12,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:45:12,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138976879] [2024-12-02 08:45:12,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:12,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:45:12,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:12,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:45:12,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:45:12,594 INFO L87 Difference]: Start difference. First operand 1655 states and 2156 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:12,775 INFO L93 Difference]: Finished difference Result 3286 states and 4289 transitions. [2024-12-02 08:45:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:45:12,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:12,781 INFO L225 Difference]: With dead ends: 3286 [2024-12-02 08:45:12,781 INFO L226 Difference]: Without dead ends: 1659 [2024-12-02 08:45:12,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 08:45:12,784 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 334 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 08:45:12,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:45:12,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2024-12-02 08:45:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2024-12-02 08:45:12,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1441 states have (on average 1.282442748091603) internal successors, (1848), 1457 states have internal predecessors, (1848), 156 states have call successors, (156), 61 states have call predecessors, (156), 61 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 08:45:12,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2160 transitions. [2024-12-02 08:45:12,980 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2160 transitions. Word has length 153 [2024-12-02 08:45:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:12,980 INFO L471 AbstractCegarLoop]: Abstraction has 1659 states and 2160 transitions. [2024-12-02 08:45:12,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2160 transitions. [2024-12-02 08:45:12,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:12,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:12,981 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:12,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:13,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:13,182 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:13,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:13,182 INFO L85 PathProgramCache]: Analyzing trace with hash 651839270, now seen corresponding path program 1 times [2024-12-02 08:45:13,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:13,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186311652] [2024-12-02 08:45:13,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:13,182 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 08:45:13,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:13,184 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:13,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:13,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:45:13,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:13,572 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 08:45:13,791 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 61 treesize of output 37 [2024-12-02 08:45:13,832 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 72 treesize of output 36 [2024-12-02 08:45:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:13,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:13,991 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:13,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186311652] [2024-12-02 08:45:13,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186311652] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:13,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:13,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:45:13,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257680461] [2024-12-02 08:45:13,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:13,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:45:13,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:13,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:45:13,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:45:13,992 INFO L87 Difference]: Start difference. First operand 1659 states and 2160 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:15,916 INFO L93 Difference]: Finished difference Result 4023 states and 5220 transitions. [2024-12-02 08:45:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:45:15,917 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:15,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:15,922 INFO L225 Difference]: With dead ends: 4023 [2024-12-02 08:45:15,922 INFO L226 Difference]: Without dead ends: 2392 [2024-12-02 08:45:15,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:45:15,925 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 194 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:15,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 2006 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:45:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-12-02 08:45:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 1715. [2024-12-02 08:45:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1497 states have (on average 1.280561122244489) internal successors, (1917), 1513 states have internal predecessors, (1917), 156 states have call successors, (156), 61 states have call predecessors, (156), 61 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 08:45:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2229 transitions. [2024-12-02 08:45:16,133 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2229 transitions. Word has length 153 [2024-12-02 08:45:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:16,133 INFO L471 AbstractCegarLoop]: Abstraction has 1715 states and 2229 transitions. [2024-12-02 08:45:16,134 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:16,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2229 transitions. [2024-12-02 08:45:16,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:16,136 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:16,136 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:16,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:16,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:16,336 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:16,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:16,337 INFO L85 PathProgramCache]: Analyzing trace with hash 870693988, now seen corresponding path program 1 times [2024-12-02 08:45:16,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:16,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572566121] [2024-12-02 08:45:16,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:16,337 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 08:45:16,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:16,339 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:16,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:16,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:45:16,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:17,616 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 70 treesize of output 34 [2024-12-02 08:45:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:45:17,661 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:18,213 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:45:18,213 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 72 treesize of output 43 [2024-12-02 08:45:18,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:18,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572566121] [2024-12-02 08:45:18,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572566121] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:18,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [500057244] [2024-12-02 08:45:18,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:18,315 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:45:18,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:45:18,316 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:45:18,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-12-02 08:45:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:19,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:45:19,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:20,487 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 08:45:21,670 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 70 treesize of output 34 [2024-12-02 08:45:21,745 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:45:21,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:22,048 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 40 [2024-12-02 08:45:22,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [500057244] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:22,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:45:22,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-12-02 08:45:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992252844] [2024-12-02 08:45:22,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:45:22,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:45:22,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:22,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:45:22,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:45:22,193 INFO L87 Difference]: Start difference. First operand 1715 states and 2229 transitions. Second operand has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 13 states have internal predecessors, (117), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-12-02 08:45:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:25,009 INFO L93 Difference]: Finished difference Result 5478 states and 7086 transitions. [2024-12-02 08:45:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:45:25,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 13 states have internal predecessors, (117), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 153 [2024-12-02 08:45:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:25,017 INFO L225 Difference]: With dead ends: 5478 [2024-12-02 08:45:25,017 INFO L226 Difference]: Without dead ends: 3791 [2024-12-02 08:45:25,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 438 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:45:25,019 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 711 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:25,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1187 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 08:45:25,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2024-12-02 08:45:25,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 2227. [2024-12-02 08:45:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1945 states have (on average 1.280719794344473) internal successors, (2491), 1968 states have internal predecessors, (2491), 203 states have call successors, (203), 78 states have call predecessors, (203), 78 states have return successors, (203), 180 states have call predecessors, (203), 203 states have call successors, (203) [2024-12-02 08:45:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 2897 transitions. [2024-12-02 08:45:25,274 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 2897 transitions. Word has length 153 [2024-12-02 08:45:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:25,274 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 2897 transitions. [2024-12-02 08:45:25,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 13 states have internal predecessors, (117), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-12-02 08:45:25,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 2897 transitions. [2024-12-02 08:45:25,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:25,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:25,275 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:25,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:25,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-12-02 08:45:25,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:45:25,676 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:25,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:25,676 INFO L85 PathProgramCache]: Analyzing trace with hash -927176878, now seen corresponding path program 1 times [2024-12-02 08:45:25,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:25,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912526639] [2024-12-02 08:45:25,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:25,677 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 08:45:25,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:25,678 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:25,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:26,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:45:26,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:27,373 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 61 treesize of output 37 [2024-12-02 08:45:27,376 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 97 treesize of output 49 [2024-12-02 08:45:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:45:27,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:27,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:27,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912526639] [2024-12-02 08:45:27,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912526639] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:27,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:27,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-12-02 08:45:27,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963735370] [2024-12-02 08:45:27,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:27,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:45:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:27,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:45:27,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:45:27,755 INFO L87 Difference]: Start difference. First operand 2227 states and 2897 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:28,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:28,447 INFO L93 Difference]: Finished difference Result 4724 states and 6145 transitions. [2024-12-02 08:45:28,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:45:28,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:28,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:28,454 INFO L225 Difference]: With dead ends: 4724 [2024-12-02 08:45:28,454 INFO L226 Difference]: Without dead ends: 2525 [2024-12-02 08:45:28,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:45:28,456 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 160 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:28,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 602 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:45:28,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2024-12-02 08:45:28,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2053. [2024-12-02 08:45:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2053 states, 1792 states have (on average 1.2762276785714286) internal successors, (2287), 1813 states have internal predecessors, (2287), 187 states have call successors, (187), 73 states have call predecessors, (187), 73 states have return successors, (187), 166 states have call predecessors, (187), 187 states have call successors, (187) [2024-12-02 08:45:28,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 2661 transitions. [2024-12-02 08:45:28,676 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 2661 transitions. Word has length 153 [2024-12-02 08:45:28,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:28,676 INFO L471 AbstractCegarLoop]: Abstraction has 2053 states and 2661 transitions. [2024-12-02 08:45:28,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 2661 transitions. [2024-12-02 08:45:28,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:28,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:28,678 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:28,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:28,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:28,878 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:28,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:28,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1628241456, now seen corresponding path program 1 times [2024-12-02 08:45:28,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:28,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156943739] [2024-12-02 08:45:28,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:28,879 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 08:45:28,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:28,880 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:28,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:29,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:45:29,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:29,310 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 08:45:29,494 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 61 treesize of output 37 [2024-12-02 08:45:29,544 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 70 treesize of output 34 [2024-12-02 08:45:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:29,696 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:29,696 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:29,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156943739] [2024-12-02 08:45:29,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156943739] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:29,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:29,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:45:29,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937739673] [2024-12-02 08:45:29,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:29,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:45:29,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:29,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:45:29,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:45:29,698 INFO L87 Difference]: Start difference. First operand 2053 states and 2661 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:31,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:31,524 INFO L93 Difference]: Finished difference Result 4267 states and 5534 transitions. [2024-12-02 08:45:31,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:45:31,525 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:31,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:31,534 INFO L225 Difference]: With dead ends: 4267 [2024-12-02 08:45:31,534 INFO L226 Difference]: Without dead ends: 2242 [2024-12-02 08:45:31,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:45:31,537 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 94 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:31,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 2115 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 08:45:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2024-12-02 08:45:31,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2053. [2024-12-02 08:45:31,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2053 states, 1792 states have (on average 1.2762276785714286) internal successors, (2287), 1813 states have internal predecessors, (2287), 187 states have call successors, (187), 73 states have call predecessors, (187), 73 states have return successors, (187), 166 states have call predecessors, (187), 187 states have call successors, (187) [2024-12-02 08:45:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 2661 transitions. [2024-12-02 08:45:31,766 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 2661 transitions. Word has length 153 [2024-12-02 08:45:31,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:31,767 INFO L471 AbstractCegarLoop]: Abstraction has 2053 states and 2661 transitions. [2024-12-02 08:45:31,767 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 2661 transitions. [2024-12-02 08:45:31,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:31,768 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:31,768 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:31,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:31,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:31,968 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:31,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:31,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1487692846, now seen corresponding path program 1 times [2024-12-02 08:45:31,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:31,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63453072] [2024-12-02 08:45:31,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:31,969 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 08:45:31,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:31,971 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:31,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:32,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:45:32,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:33,983 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 126 treesize of output 78 [2024-12-02 08:45:33,987 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 99 treesize of output 51 [2024-12-02 08:45:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:45:34,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:34,994 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:34,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63453072] [2024-12-02 08:45:34,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63453072] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:34,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:34,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 20 [2024-12-02 08:45:34,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434645643] [2024-12-02 08:45:34,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:34,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:45:34,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:34,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:45:34,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:45:34,996 INFO L87 Difference]: Start difference. First operand 2053 states and 2661 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:37,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:37,498 INFO L93 Difference]: Finished difference Result 5039 states and 6504 transitions. [2024-12-02 08:45:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:45:37,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:37,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:37,506 INFO L225 Difference]: With dead ends: 5039 [2024-12-02 08:45:37,506 INFO L226 Difference]: Without dead ends: 3014 [2024-12-02 08:45:37,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:45:37,508 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 329 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:37,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 762 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 08:45:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2024-12-02 08:45:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 1596. [2024-12-02 08:45:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1404 states have (on average 1.2813390313390314) internal successors, (1799), 1417 states have internal predecessors, (1799), 136 states have call successors, (136), 55 states have call predecessors, (136), 55 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-12-02 08:45:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2071 transitions. [2024-12-02 08:45:37,684 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2071 transitions. Word has length 153 [2024-12-02 08:45:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:37,684 INFO L471 AbstractCegarLoop]: Abstraction has 1596 states and 2071 transitions. [2024-12-02 08:45:37,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:37,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2071 transitions. [2024-12-02 08:45:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:37,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:37,685 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:37,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:37,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:37,886 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:37,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash 775529921, now seen corresponding path program 1 times [2024-12-02 08:45:37,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:37,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387105906] [2024-12-02 08:45:37,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:37,887 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 08:45:37,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:37,888 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:37,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:38,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:45:38,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:39,196 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 85 treesize of output 49 [2024-12-02 08:45:39,200 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 49 treesize of output 25 [2024-12-02 08:45:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:45:39,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:39,918 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 65 treesize of output 41 [2024-12-02 08:45:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:39,968 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:39,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387105906] [2024-12-02 08:45:39,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387105906] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:39,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:39,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2024-12-02 08:45:39,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077664282] [2024-12-02 08:45:39,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:39,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:45:39,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:39,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:45:39,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:45:39,969 INFO L87 Difference]: Start difference. First operand 1596 states and 2071 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:41,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:41,209 INFO L93 Difference]: Finished difference Result 3483 states and 4522 transitions. [2024-12-02 08:45:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:45:41,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:41,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:41,216 INFO L225 Difference]: With dead ends: 3483 [2024-12-02 08:45:41,217 INFO L226 Difference]: Without dead ends: 1915 [2024-12-02 08:45:41,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:45:41,219 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 135 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:41,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 777 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:45:41,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2024-12-02 08:45:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1641. [2024-12-02 08:45:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1449 states have (on average 1.285024154589372) internal successors, (1862), 1462 states have internal predecessors, (1862), 136 states have call successors, (136), 55 states have call predecessors, (136), 55 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-12-02 08:45:41,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2134 transitions. [2024-12-02 08:45:41,402 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2134 transitions. Word has length 153 [2024-12-02 08:45:41,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:41,402 INFO L471 AbstractCegarLoop]: Abstraction has 1641 states and 2134 transitions. [2024-12-02 08:45:41,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:41,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2134 transitions. [2024-12-02 08:45:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:41,403 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:41,403 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:41,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:41,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:41,604 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:41,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:41,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1198231747, now seen corresponding path program 1 times [2024-12-02 08:45:41,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:41,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909556687] [2024-12-02 08:45:41,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:41,605 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 08:45:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:41,606 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:41,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:41,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:45:41,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:42,939 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 46 treesize of output 22 [2024-12-02 08:45:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:45:42,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:43,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:43,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909556687] [2024-12-02 08:45:43,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909556687] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:43,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:43,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-12-02 08:45:43,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105795167] [2024-12-02 08:45:43,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:43,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:45:43,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:43,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:45:43,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:45:43,127 INFO L87 Difference]: Start difference. First operand 1641 states and 2134 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:43,764 INFO L93 Difference]: Finished difference Result 4144 states and 5367 transitions. [2024-12-02 08:45:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:45:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:43,772 INFO L225 Difference]: With dead ends: 4144 [2024-12-02 08:45:43,773 INFO L226 Difference]: Without dead ends: 2531 [2024-12-02 08:45:43,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:45:43,775 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 186 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:43,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 396 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:45:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2024-12-02 08:45:43,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 1683. [2024-12-02 08:45:43,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1491 states have (on average 1.2756539235412474) internal successors, (1902), 1504 states have internal predecessors, (1902), 136 states have call successors, (136), 55 states have call predecessors, (136), 55 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-12-02 08:45:43,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2174 transitions. [2024-12-02 08:45:43,988 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2174 transitions. Word has length 153 [2024-12-02 08:45:43,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:43,989 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2174 transitions. [2024-12-02 08:45:43,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:43,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2174 transitions. [2024-12-02 08:45:43,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:43,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:43,990 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:43,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:44,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:44,190 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:44,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash -836892410, now seen corresponding path program 1 times [2024-12-02 08:45:44,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:44,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449835006] [2024-12-02 08:45:44,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:44,191 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 08:45:44,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:44,193 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:44,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:44,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:45:44,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-12-02 08:45:44,583 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:44,583 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449835006] [2024-12-02 08:45:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449835006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:44,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:44,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:45:44,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732704504] [2024-12-02 08:45:44,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:44,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:45:44,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:44,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:45:44,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:45:44,584 INFO L87 Difference]: Start difference. First operand 1683 states and 2174 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:45:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:44,920 INFO L93 Difference]: Finished difference Result 3416 states and 4403 transitions. [2024-12-02 08:45:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:45:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 153 [2024-12-02 08:45:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:44,925 INFO L225 Difference]: With dead ends: 3416 [2024-12-02 08:45:44,925 INFO L226 Difference]: Without dead ends: 1745 [2024-12-02 08:45:44,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 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 08:45:44,928 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:44,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 704 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:45:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2024-12-02 08:45:45,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1683. [2024-12-02 08:45:45,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1491 states have (on average 1.2702883970489605) internal successors, (1894), 1504 states have internal predecessors, (1894), 136 states have call successors, (136), 55 states have call predecessors, (136), 55 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-12-02 08:45:45,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2166 transitions. [2024-12-02 08:45:45,119 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2166 transitions. Word has length 153 [2024-12-02 08:45:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:45,120 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2166 transitions. [2024-12-02 08:45:45,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:45:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2166 transitions. [2024-12-02 08:45:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:45,121 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:45,121 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:45,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:45,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:45,321 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:45,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1074150148, now seen corresponding path program 1 times [2024-12-02 08:45:45,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:45,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962235665] [2024-12-02 08:45:45,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:45,322 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 08:45:45,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:45,324 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:45,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:45,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:45:45,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:45,743 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 08:45:45,775 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 45 treesize of output 21 [2024-12-02 08:45:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:45,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:45,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:45,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962235665] [2024-12-02 08:45:45,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962235665] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:45,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:45:45,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:45:45,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703602760] [2024-12-02 08:45:45,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:45,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:45:45,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:45,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:45:45,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:45:45,864 INFO L87 Difference]: Start difference. First operand 1683 states and 2166 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:47,481 INFO L93 Difference]: Finished difference Result 4161 states and 5359 transitions. [2024-12-02 08:45:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:45:47,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:47,487 INFO L225 Difference]: With dead ends: 4161 [2024-12-02 08:45:47,487 INFO L226 Difference]: Without dead ends: 2506 [2024-12-02 08:45:47,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:45:47,489 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 155 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:47,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1779 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:45:47,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2024-12-02 08:45:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2011. [2024-12-02 08:45:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2011 states, 1755 states have (on average 1.2626780626780627) internal successors, (2216), 1774 states have internal predecessors, (2216), 182 states have call successors, (182), 73 states have call predecessors, (182), 73 states have return successors, (182), 163 states have call predecessors, (182), 182 states have call successors, (182) [2024-12-02 08:45:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2580 transitions. [2024-12-02 08:45:47,740 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2580 transitions. Word has length 153 [2024-12-02 08:45:47,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:47,740 INFO L471 AbstractCegarLoop]: Abstraction has 2011 states and 2580 transitions. [2024-12-02 08:45:47,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:47,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2580 transitions. [2024-12-02 08:45:47,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:45:47,742 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:47,742 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:47,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:47,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:45:47,942 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:47,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1775214726, now seen corresponding path program 1 times [2024-12-02 08:45:47,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:47,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115136560] [2024-12-02 08:45:47,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:47,943 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 08:45:47,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:47,944 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:47,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:48,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:45:48,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:49,407 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 70 treesize of output 34 [2024-12-02 08:45:49,589 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 49 treesize of output 25 [2024-12-02 08:45:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:45:49,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:49,834 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 65 treesize of output 41 [2024-12-02 08:45:49,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:49,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115136560] [2024-12-02 08:45:49,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115136560] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:49,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [59782010] [2024-12-02 08:45:49,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:49,925 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:45:49,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:45:49,927 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:45:49,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2024-12-02 08:45:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:50,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:45:50,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:51,140 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 45 treesize of output 21 [2024-12-02 08:45:51,211 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:45:51,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:51,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [59782010] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:51,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:51,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 08:45:51,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274950540] [2024-12-02 08:45:51,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:51,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:45:51,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:45:51,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:45:51,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:45:51,212 INFO L87 Difference]: Start difference. First operand 2011 states and 2580 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:52,028 INFO L93 Difference]: Finished difference Result 4123 states and 5281 transitions. [2024-12-02 08:45:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:45:52,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 08:45:52,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:52,033 INFO L225 Difference]: With dead ends: 4123 [2024-12-02 08:45:52,033 INFO L226 Difference]: Without dead ends: 2140 [2024-12-02 08:45:52,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:45:52,036 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 93 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:52,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 668 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:45:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2024-12-02 08:45:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1408. [2024-12-02 08:45:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1258 states have (on average 1.2615262321144673) internal successors, (1587), 1267 states have internal predecessors, (1587), 104 states have call successors, (104), 45 states have call predecessors, (104), 45 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:45:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1795 transitions. [2024-12-02 08:45:52,211 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1795 transitions. Word has length 153 [2024-12-02 08:45:52,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:52,211 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1795 transitions. [2024-12-02 08:45:52,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:45:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1795 transitions. [2024-12-02 08:45:52,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:45:52,212 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:52,212 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:52,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:52,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2024-12-02 08:45:52,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:45:52,613 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:52,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:52,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1958622052, now seen corresponding path program 1 times [2024-12-02 08:45:52,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:45:52,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156366094] [2024-12-02 08:45:52,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:52,613 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 08:45:52,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:45:52,615 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:52,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:45:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:53,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:45:53,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:53,939 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 08:45:53,974 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 109 treesize of output 61 [2024-12-02 08:45:54,057 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 49 treesize of output 25 [2024-12-02 08:45:54,127 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:45:54,127 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:45:54,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:45:54,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156366094] [2024-12-02 08:45:54,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156366094] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:45:54,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [250760569] [2024-12-02 08:45:54,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:54,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:45:54,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:45:54,559 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:45:54,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-12-02 08:45:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:56,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 08:45:56,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:57,782 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 08:45:58,725 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 15 treesize of output 1 [2024-12-02 08:45:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:45:59,120 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:00,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [250760569] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:00,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:46:00,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-12-02 08:46:00,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144907710] [2024-12-02 08:46:00,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:46:00,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 08:46:00,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:00,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 08:46:00,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=919, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:46:00,007 INFO L87 Difference]: Start difference. First operand 1408 states and 1795 transitions. Second operand has 20 states, 20 states have (on average 6.05) internal successors, (121), 19 states have internal predecessors, (121), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-12-02 08:46:03,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:03,778 INFO L93 Difference]: Finished difference Result 4387 states and 5580 transitions. [2024-12-02 08:46:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:46:03,779 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.05) internal successors, (121), 19 states have internal predecessors, (121), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 154 [2024-12-02 08:46:03,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:03,784 INFO L225 Difference]: With dead ends: 4387 [2024-12-02 08:46:03,784 INFO L226 Difference]: Without dead ends: 3007 [2024-12-02 08:46:03,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 346 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=234, Invalid=1406, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 08:46:03,786 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 721 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:03,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 1735 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 08:46:03,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2024-12-02 08:46:04,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2206. [2024-12-02 08:46:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1968 states have (on average 1.2652439024390243) internal successors, (2490), 1984 states have internal predecessors, (2490), 168 states have call successors, (168), 69 states have call predecessors, (168), 69 states have return successors, (168), 152 states have call predecessors, (168), 168 states have call successors, (168) [2024-12-02 08:46:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 2826 transitions. [2024-12-02 08:46:04,077 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 2826 transitions. Word has length 154 [2024-12-02 08:46:04,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:04,077 INFO L471 AbstractCegarLoop]: Abstraction has 2206 states and 2826 transitions. [2024-12-02 08:46:04,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.05) internal successors, (121), 19 states have internal predecessors, (121), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-12-02 08:46:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 2826 transitions. [2024-12-02 08:46:04,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:46:04,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:04,078 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:04,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:04,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2024-12-02 08:46:04,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:46:04,479 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:04,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:04,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1154081641, now seen corresponding path program 1 times [2024-12-02 08:46:04,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:04,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718516398] [2024-12-02 08:46:04,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:04,480 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 08:46:04,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:04,481 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:04,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:04,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:46:04,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:05,962 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 70 treesize of output 34 [2024-12-02 08:46:06,142 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 49 treesize of output 25 [2024-12-02 08:46:06,225 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 08:46:06,436 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 49 treesize of output 25 [2024-12-02 08:46:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:46:06,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:07,131 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 69 treesize of output 45 [2024-12-02 08:46:07,296 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:46:07,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718516398] [2024-12-02 08:46:07,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718516398] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:07,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [37146098] [2024-12-02 08:46:07,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:07,297 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:46:07,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:46:07,298 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:46:07,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2024-12-02 08:46:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:08,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 08:46:08,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:09,563 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 08:46:10,740 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 70 treesize of output 34 [2024-12-02 08:46:10,862 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 49 treesize of output 25 [2024-12-02 08:46:10,943 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 08:46:10,994 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 49 treesize of output 25 [2024-12-02 08:46:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:46:11,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:11,326 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 69 treesize of output 45 [2024-12-02 08:46:11,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [37146098] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:11,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:46:11,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2024-12-02 08:46:11,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052930974] [2024-12-02 08:46:11,489 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:46:11,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 08:46:11,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:11,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 08:46:11,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:46:11,490 INFO L87 Difference]: Start difference. First operand 2206 states and 2826 transitions. Second operand has 18 states, 18 states have (on average 5.888888888888889) internal successors, (106), 17 states have internal predecessors, (106), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-12-02 08:46:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:23,000 INFO L93 Difference]: Finished difference Result 6901 states and 8786 transitions. [2024-12-02 08:46:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 08:46:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.888888888888889) internal successors, (106), 17 states have internal predecessors, (106), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 154 [2024-12-02 08:46:23,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:23,009 INFO L225 Difference]: With dead ends: 6901 [2024-12-02 08:46:23,009 INFO L226 Difference]: Without dead ends: 4723 [2024-12-02 08:46:23,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 352 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=504, Invalid=2688, Unknown=0, NotChecked=0, Total=3192 [2024-12-02 08:46:23,012 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 1262 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:23,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 2726 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-12-02 08:46:23,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4723 states. [2024-12-02 08:46:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4723 to 2230. [2024-12-02 08:46:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 1992 states have (on average 1.2620481927710843) internal successors, (2514), 2008 states have internal predecessors, (2514), 168 states have call successors, (168), 69 states have call predecessors, (168), 69 states have return successors, (168), 152 states have call predecessors, (168), 168 states have call successors, (168) [2024-12-02 08:46:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2850 transitions. [2024-12-02 08:46:23,334 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2850 transitions. Word has length 154 [2024-12-02 08:46:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:23,334 INFO L471 AbstractCegarLoop]: Abstraction has 2230 states and 2850 transitions. [2024-12-02 08:46:23,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.888888888888889) internal successors, (106), 17 states have internal predecessors, (106), 4 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-12-02 08:46:23,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2850 transitions. [2024-12-02 08:46:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:46:23,336 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:23,336 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:23,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:23,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2024-12-02 08:46:23,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:46:23,736 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:23,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1382405086, now seen corresponding path program 1 times [2024-12-02 08:46:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:23,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398113742] [2024-12-02 08:46:23,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:23,737 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 08:46:23,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:23,739 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:23,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:24,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:46:24,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:46:24,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:46:24,125 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:46:24,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398113742] [2024-12-02 08:46:24,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398113742] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:24,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:46:24,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:46:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487539086] [2024-12-02 08:46:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:24,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:46:24,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:24,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:46:24,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:46:24,126 INFO L87 Difference]: Start difference. First operand 2230 states and 2850 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:46:24,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:24,439 INFO L93 Difference]: Finished difference Result 4432 states and 5669 transitions. [2024-12-02 08:46:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:46:24,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-12-02 08:46:24,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:24,444 INFO L225 Difference]: With dead ends: 4432 [2024-12-02 08:46:24,444 INFO L226 Difference]: Without dead ends: 2230 [2024-12-02 08:46:24,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 151 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 08:46:24,446 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 496 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 08:46:24,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 496 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:46:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2024-12-02 08:46:24,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2230. [2024-12-02 08:46:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 1992 states have (on average 1.2590361445783131) internal successors, (2508), 2008 states have internal predecessors, (2508), 168 states have call successors, (168), 69 states have call predecessors, (168), 69 states have return successors, (168), 152 states have call predecessors, (168), 168 states have call successors, (168) [2024-12-02 08:46:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2844 transitions. [2024-12-02 08:46:24,758 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2844 transitions. Word has length 154 [2024-12-02 08:46:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:24,758 INFO L471 AbstractCegarLoop]: Abstraction has 2230 states and 2844 transitions. [2024-12-02 08:46:24,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:46:24,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2844 transitions. [2024-12-02 08:46:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:46:24,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:24,760 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:24,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:24,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:46:24,960 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:24,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:24,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1052772903, now seen corresponding path program 1 times [2024-12-02 08:46:24,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:24,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932341257] [2024-12-02 08:46:24,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:24,961 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 08:46:24,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:24,963 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:24,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:25,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:46:25,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:26,353 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 86 treesize of output 50 [2024-12-02 08:46:26,357 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 50 treesize of output 26 [2024-12-02 08:46:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:46:26,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:27,220 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 64 treesize of output 40 [2024-12-02 08:46:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:46:27,262 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:46:27,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932341257] [2024-12-02 08:46:27,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932341257] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:27,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:46:27,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2024-12-02 08:46:27,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71092982] [2024-12-02 08:46:27,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:27,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:46:27,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:27,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:46:27,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:46:27,263 INFO L87 Difference]: Start difference. First operand 2230 states and 2844 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:46:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:28,624 INFO L93 Difference]: Finished difference Result 4624 states and 5900 transitions. [2024-12-02 08:46:28,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:46:28,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-12-02 08:46:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:28,630 INFO L225 Difference]: With dead ends: 4624 [2024-12-02 08:46:28,630 INFO L226 Difference]: Without dead ends: 2422 [2024-12-02 08:46:28,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:46:28,631 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 207 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:28,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 936 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:46:28,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2024-12-02 08:46:28,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2230. [2024-12-02 08:46:28,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 1992 states have (on average 1.2575301204819278) internal successors, (2505), 2008 states have internal predecessors, (2505), 168 states have call successors, (168), 69 states have call predecessors, (168), 69 states have return successors, (168), 152 states have call predecessors, (168), 168 states have call successors, (168) [2024-12-02 08:46:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2841 transitions. [2024-12-02 08:46:28,940 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2841 transitions. Word has length 155 [2024-12-02 08:46:28,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:28,940 INFO L471 AbstractCegarLoop]: Abstraction has 2230 states and 2841 transitions. [2024-12-02 08:46:28,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:46:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2841 transitions. [2024-12-02 08:46:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:46:28,942 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:28,942 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:28,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:29,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:46:29,142 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:29,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash 353109002, now seen corresponding path program 1 times [2024-12-02 08:46:29,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:29,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785986888] [2024-12-02 08:46:29,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:29,143 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 08:46:29,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:29,144 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:29,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:29,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:46:29,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:30,802 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 46 treesize of output 22 [2024-12-02 08:46:30,808 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 70 treesize of output 34 [2024-12-02 08:46:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:46:30,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:31,136 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 64 treesize of output 40 [2024-12-02 08:46:31,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:46:31,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785986888] [2024-12-02 08:46:31,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785986888] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:31,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [981094635] [2024-12-02 08:46:31,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:31,367 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:46:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:46:31,369 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:46:31,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2024-12-02 08:46:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:32,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:46:32,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:32,639 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 62 treesize of output 38 [2024-12-02 08:46:32,641 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 50 treesize of output 26 [2024-12-02 08:46:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:46:32,743 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:46:32,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [981094635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:46:32,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:46:32,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 08:46:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787636821] [2024-12-02 08:46:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:32,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:46:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:32,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:46:32,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:46:32,744 INFO L87 Difference]: Start difference. First operand 2230 states and 2841 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:46:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:33,559 INFO L93 Difference]: Finished difference Result 4618 states and 5885 transitions. [2024-12-02 08:46:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:46:33,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-12-02 08:46:33,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:33,566 INFO L225 Difference]: With dead ends: 4618 [2024-12-02 08:46:33,566 INFO L226 Difference]: Without dead ends: 2416 [2024-12-02 08:46:33,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 330 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:46:33,569 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 94 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:33,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 649 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:46:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2024-12-02 08:46:34,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2130. [2024-12-02 08:46:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 1892 states have (on average 1.2563424947145878) internal successors, (2377), 1908 states have internal predecessors, (2377), 168 states have call successors, (168), 69 states have call predecessors, (168), 69 states have return successors, (168), 152 states have call predecessors, (168), 168 states have call successors, (168) [2024-12-02 08:46:34,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2713 transitions. [2024-12-02 08:46:34,029 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2713 transitions. Word has length 155 [2024-12-02 08:46:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:34,029 INFO L471 AbstractCegarLoop]: Abstraction has 2130 states and 2713 transitions. [2024-12-02 08:46:34,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:46:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2713 transitions. [2024-12-02 08:46:34,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:46:34,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:34,031 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:34,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2024-12-02 08:46:34,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:34,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:46:34,432 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:34,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2031503751, now seen corresponding path program 1 times [2024-12-02 08:46:34,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:34,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357158183] [2024-12-02 08:46:34,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:34,433 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 08:46:34,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:34,434 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:34,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:34,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:46:34,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:46:36,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:46:37,484 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:46:37,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357158183] [2024-12-02 08:46:37,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357158183] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:37,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:46:37,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2024-12-02 08:46:37,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915666288] [2024-12-02 08:46:37,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:46:37,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:46:37,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:37,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:46:37,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:46:37,485 INFO L87 Difference]: Start difference. First operand 2130 states and 2713 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:46:39,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:39,126 INFO L93 Difference]: Finished difference Result 4548 states and 5790 transitions. [2024-12-02 08:46:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:46:39,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-12-02 08:46:39,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:39,132 INFO L225 Difference]: With dead ends: 4548 [2024-12-02 08:46:39,132 INFO L226 Difference]: Without dead ends: 2446 [2024-12-02 08:46:39,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:46:39,134 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 125 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:39,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 975 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:46:39,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2024-12-02 08:46:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2148. [2024-12-02 08:46:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1910 states have (on average 1.2586387434554973) internal successors, (2404), 1926 states have internal predecessors, (2404), 168 states have call successors, (168), 69 states have call predecessors, (168), 69 states have return successors, (168), 152 states have call predecessors, (168), 168 states have call successors, (168) [2024-12-02 08:46:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2740 transitions. [2024-12-02 08:46:39,559 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2740 transitions. Word has length 155 [2024-12-02 08:46:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:39,559 INFO L471 AbstractCegarLoop]: Abstraction has 2148 states and 2740 transitions. [2024-12-02 08:46:39,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:46:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2740 transitions. [2024-12-02 08:46:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:46:39,561 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:39,561 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:39,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:39,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:46:39,761 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:39,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:39,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1608801925, now seen corresponding path program 1 times [2024-12-02 08:46:39,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:39,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855383117] [2024-12-02 08:46:39,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:39,762 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 08:46:39,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:39,764 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:39,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:40,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:46:40,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:42,567 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 70 treesize of output 34 [2024-12-02 08:46:42,674 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:46:42,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:43,371 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:46:43,371 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 91 treesize of output 62 [2024-12-02 08:46:43,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:46:43,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855383117] [2024-12-02 08:46:43,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855383117] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:43,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2142114767] [2024-12-02 08:46:43,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:43,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:46:43,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:46:43,719 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:46:43,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2024-12-02 08:46:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:44,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:46:45,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:47,137 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 15 treesize of output 1 [2024-12-02 08:46:48,067 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 08:46:49,438 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 46 treesize of output 22 [2024-12-02 08:46:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:46:49,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:49,972 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 86 treesize of output 74 [2024-12-02 08:46:50,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2142114767] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:46:50,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:46:50,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-12-02 08:46:50,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116122230] [2024-12-02 08:46:50,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:46:50,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 08:46:50,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:50,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 08:46:50,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 08:46:50,163 INFO L87 Difference]: Start difference. First operand 2148 states and 2740 transitions. Second operand has 25 states, 23 states have (on average 5.043478260869565) internal successors, (116), 21 states have internal predecessors, (116), 6 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-12-02 08:46:56,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:56,783 INFO L93 Difference]: Finished difference Result 5564 states and 6991 transitions. [2024-12-02 08:46:56,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 08:46:56,784 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 5.043478260869565) internal successors, (116), 21 states have internal predecessors, (116), 6 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 155 [2024-12-02 08:46:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:56,790 INFO L225 Difference]: With dead ends: 5564 [2024-12-02 08:46:56,790 INFO L226 Difference]: Without dead ends: 3444 [2024-12-02 08:46:56,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 411 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 08:46:56,794 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 784 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:56,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2964 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 08:46:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2024-12-02 08:46:57,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 2070. [2024-12-02 08:46:57,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2070 states, 1840 states have (on average 1.257608695652174) internal successors, (2314), 1848 states have internal predecessors, (2314), 160 states have call successors, (160), 69 states have call predecessors, (160), 69 states have return successors, (160), 152 states have call predecessors, (160), 160 states have call successors, (160) [2024-12-02 08:46:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 2634 transitions. [2024-12-02 08:46:57,165 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 2634 transitions. Word has length 155 [2024-12-02 08:46:57,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:57,165 INFO L471 AbstractCegarLoop]: Abstraction has 2070 states and 2634 transitions. [2024-12-02 08:46:57,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 5.043478260869565) internal successors, (116), 21 states have internal predecessors, (116), 6 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-12-02 08:46:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 2634 transitions. [2024-12-02 08:46:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:46:57,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:57,167 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:57,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:46:57,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2024-12-02 08:46:57,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:46:57,567 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:57,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:57,568 INFO L85 PathProgramCache]: Analyzing trace with hash -963292516, now seen corresponding path program 1 times [2024-12-02 08:46:57,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:57,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714737289] [2024-12-02 08:46:57,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:57,568 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 08:46:57,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:57,569 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:57,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:46:57,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:46:57,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:46:58,147 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 79 treesize of output 43 [2024-12-02 08:46:58,191 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 260 proven. 48 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:46:58,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:46:58,329 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 49 treesize of output 25 [2024-12-02 08:46:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 36 proven. 15 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 08:46:58,361 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:46:58,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714737289] [2024-12-02 08:46:58,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714737289] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:46:58,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:46:58,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-12-02 08:46:58,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136360415] [2024-12-02 08:46:58,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:46:58,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:46:58,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:46:58,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:46:58,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:46:58,363 INFO L87 Difference]: Start difference. First operand 2070 states and 2634 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) [2024-12-02 08:46:59,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:46:59,321 INFO L93 Difference]: Finished difference Result 3860 states and 4882 transitions. [2024-12-02 08:46:59,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:46:59,322 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) Word has length 155 [2024-12-02 08:46:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:46:59,325 INFO L225 Difference]: With dead ends: 3860 [2024-12-02 08:46:59,325 INFO L226 Difference]: Without dead ends: 1800 [2024-12-02 08:46:59,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:46:59,326 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 131 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:46:59,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 690 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:46:59,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2024-12-02 08:46:59,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1734. [2024-12-02 08:46:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1536 states have (on average 1.2454427083333333) internal successors, (1913), 1544 states have internal predecessors, (1913), 138 states have call successors, (138), 59 states have call predecessors, (138), 59 states have return successors, (138), 130 states have call predecessors, (138), 138 states have call successors, (138) [2024-12-02 08:46:59,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2189 transitions. [2024-12-02 08:46:59,594 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2189 transitions. Word has length 155 [2024-12-02 08:46:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:46:59,595 INFO L471 AbstractCegarLoop]: Abstraction has 1734 states and 2189 transitions. [2024-12-02 08:46:59,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) [2024-12-02 08:46:59,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2189 transitions. [2024-12-02 08:46:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:46:59,596 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:46:59,596 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:59,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:59,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:46:59,797 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:46:59,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:46:59,797 INFO L85 PathProgramCache]: Analyzing trace with hash 912352350, now seen corresponding path program 1 times [2024-12-02 08:46:59,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:46:59,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997880355] [2024-12-02 08:46:59,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:46:59,798 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 08:46:59,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:46:59,800 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:46:59,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:00,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 08:47:00,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:03,188 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 68 treesize of output 32 [2024-12-02 08:47:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 4 proven. 320 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 08:47:03,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:47:04,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:47:04,625 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 63 [2024-12-02 08:47:05,254 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:05,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997880355] [2024-12-02 08:47:05,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997880355] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:05,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2039882430] [2024-12-02 08:47:05,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:05,254 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:47:05,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:47:05,256 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:47:05,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2024-12-02 08:47:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:06,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 08:47:06,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:08,822 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 08:47:09,773 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 08:47:12,904 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 68 treesize of output 32 [2024-12-02 08:47:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 4 proven. 320 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 08:47:13,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:47:13,827 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 84 treesize of output 72 [2024-12-02 08:47:14,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2039882430] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:14,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:47:14,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-12-02 08:47:14,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199883266] [2024-12-02 08:47:14,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:47:14,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 08:47:14,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:14,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 08:47:14,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1314, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 08:47:14,221 INFO L87 Difference]: Start difference. First operand 1734 states and 2189 transitions. Second operand has 28 states, 26 states have (on average 5.038461538461538) internal successors, (131), 25 states have internal predecessors, (131), 8 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 8 states have call successors, (36) [2024-12-02 08:47:19,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:19,649 INFO L93 Difference]: Finished difference Result 5009 states and 6273 transitions. [2024-12-02 08:47:19,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 08:47:19,650 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 5.038461538461538) internal successors, (131), 25 states have internal predecessors, (131), 8 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 8 states have call successors, (36) Word has length 156 [2024-12-02 08:47:19,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:19,656 INFO L225 Difference]: With dead ends: 5009 [2024-12-02 08:47:19,656 INFO L226 Difference]: Without dead ends: 3300 [2024-12-02 08:47:19,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 416 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=436, Invalid=2534, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 08:47:19,660 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 903 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:19,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1881 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 08:47:19,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2024-12-02 08:47:19,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 1825. [2024-12-02 08:47:19,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1611 states have (on average 1.2433271260086902) internal successors, (2003), 1619 states have internal predecessors, (2003), 148 states have call successors, (148), 65 states have call predecessors, (148), 65 states have return successors, (148), 140 states have call predecessors, (148), 148 states have call successors, (148) [2024-12-02 08:47:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2299 transitions. [2024-12-02 08:47:19,970 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2299 transitions. Word has length 156 [2024-12-02 08:47:19,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:19,970 INFO L471 AbstractCegarLoop]: Abstraction has 1825 states and 2299 transitions. [2024-12-02 08:47:19,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 5.038461538461538) internal successors, (131), 25 states have internal predecessors, (131), 8 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 6 states have call predecessors, (36), 8 states have call successors, (36) [2024-12-02 08:47:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2299 transitions. [2024-12-02 08:47:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:47:19,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:19,972 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:19,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2024-12-02 08:47:20,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:20,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:20,372 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:20,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash -303801376, now seen corresponding path program 1 times [2024-12-02 08:47:20,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:20,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023597212] [2024-12-02 08:47:20,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:20,373 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 08:47:20,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:20,375 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:20,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:20,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:47:20,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:20,789 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-12-02 08:47:20,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:47:20,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:20,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023597212] [2024-12-02 08:47:20,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023597212] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:20,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:20,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:20,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788181848] [2024-12-02 08:47:20,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:20,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:20,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:20,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:20,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:20,790 INFO L87 Difference]: Start difference. First operand 1825 states and 2299 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:47:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:21,254 INFO L93 Difference]: Finished difference Result 3594 states and 4514 transitions. [2024-12-02 08:47:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:47:21,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 156 [2024-12-02 08:47:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:21,258 INFO L225 Difference]: With dead ends: 3594 [2024-12-02 08:47:21,258 INFO L226 Difference]: Without dead ends: 1789 [2024-12-02 08:47:21,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 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 08:47:21,261 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:21,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 697 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:47:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2024-12-02 08:47:21,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1450. [2024-12-02 08:47:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1292 states have (on average 1.2461300309597523) internal successors, (1610), 1297 states have internal predecessors, (1610), 108 states have call successors, (108), 49 states have call predecessors, (108), 49 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:47:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1826 transitions. [2024-12-02 08:47:21,503 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1826 transitions. Word has length 156 [2024-12-02 08:47:21,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:21,503 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 1826 transitions. [2024-12-02 08:47:21,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:47:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1826 transitions. [2024-12-02 08:47:21,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:47:21,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:21,505 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:21,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:21,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:21,705 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:21,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1996894337, now seen corresponding path program 1 times [2024-12-02 08:47:21,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:21,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757830822] [2024-12-02 08:47:21,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:21,706 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 08:47:21,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:21,708 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:21,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:22,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:47:22,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:22,999 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 62 treesize of output 38 [2024-12-02 08:47:23,089 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 08:47:23,161 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 74 treesize of output 38 [2024-12-02 08:47:23,331 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 49 treesize of output 25 [2024-12-02 08:47:23,434 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:47:23,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:47:23,987 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 68 treesize of output 44 [2024-12-02 08:47:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:47:24,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:24,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757830822] [2024-12-02 08:47:24,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757830822] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:24,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:47:24,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2024-12-02 08:47:24,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251756791] [2024-12-02 08:47:24,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:24,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:47:24,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:24,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:47:24,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:47:24,032 INFO L87 Difference]: Start difference. First operand 1450 states and 1826 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:26,444 INFO L93 Difference]: Finished difference Result 3261 states and 4125 transitions. [2024-12-02 08:47:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:26,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 156 [2024-12-02 08:47:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:26,448 INFO L225 Difference]: With dead ends: 3261 [2024-12-02 08:47:26,448 INFO L226 Difference]: Without dead ends: 1839 [2024-12-02 08:47:26,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:47:26,450 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 126 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:26,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1252 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:47:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2024-12-02 08:47:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1414. [2024-12-02 08:47:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1256 states have (on average 1.2412420382165605) internal successors, (1559), 1261 states have internal predecessors, (1559), 108 states have call successors, (108), 49 states have call predecessors, (108), 49 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:47:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1775 transitions. [2024-12-02 08:47:26,702 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1775 transitions. Word has length 156 [2024-12-02 08:47:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:26,703 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1775 transitions. [2024-12-02 08:47:26,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1775 transitions. [2024-12-02 08:47:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:47:26,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:26,704 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:26,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:26,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:26,904 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:26,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:26,904 INFO L85 PathProgramCache]: Analyzing trace with hash 802078006, now seen corresponding path program 1 times [2024-12-02 08:47:26,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:26,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004172694] [2024-12-02 08:47:26,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:26,905 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 08:47:26,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:26,906 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:26,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:27,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 08:47:27,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:27,718 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 67 treesize of output 31 [2024-12-02 08:47:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:47:27,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:47:27,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:27,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004172694] [2024-12-02 08:47:27,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004172694] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:27,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:27,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:47:27,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355895329] [2024-12-02 08:47:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:27,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:47:27,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:27,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:47:27,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:47:27,786 INFO L87 Difference]: Start difference. First operand 1414 states and 1775 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:30,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:30,257 INFO L93 Difference]: Finished difference Result 3339 states and 4178 transitions. [2024-12-02 08:47:30,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:47:30,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 156 [2024-12-02 08:47:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:30,262 INFO L225 Difference]: With dead ends: 3339 [2024-12-02 08:47:30,262 INFO L226 Difference]: Without dead ends: 1953 [2024-12-02 08:47:30,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:30,263 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 297 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:30,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 736 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:47:30,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2024-12-02 08:47:30,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1461. [2024-12-02 08:47:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1303 states have (on average 1.2379125095932464) internal successors, (1613), 1308 states have internal predecessors, (1613), 108 states have call successors, (108), 49 states have call predecessors, (108), 49 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:47:30,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1829 transitions. [2024-12-02 08:47:30,510 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1829 transitions. Word has length 156 [2024-12-02 08:47:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:30,510 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 1829 transitions. [2024-12-02 08:47:30,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1829 transitions. [2024-12-02 08:47:30,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:47:30,511 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:30,511 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:30,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:30,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:30,712 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:30,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:30,712 INFO L85 PathProgramCache]: Analyzing trace with hash 101013428, now seen corresponding path program 1 times [2024-12-02 08:47:30,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:30,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944330317] [2024-12-02 08:47:30,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:30,713 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 08:47:30,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:30,714 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:30,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:31,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 08:47:31,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:31,224 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 08:47:31,346 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 128 treesize of output 92 [2024-12-02 08:47:31,348 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 113 treesize of output 65 [2024-12-02 08:47:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:47:31,403 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:47:31,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:31,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944330317] [2024-12-02 08:47:31,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944330317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:31,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:31,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:47:31,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752889789] [2024-12-02 08:47:31,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:31,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:47:31,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:31,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:47:31,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:47:31,404 INFO L87 Difference]: Start difference. First operand 1461 states and 1829 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:32,552 INFO L93 Difference]: Finished difference Result 3612 states and 4472 transitions. [2024-12-02 08:47:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:47:32,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 156 [2024-12-02 08:47:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:32,557 INFO L225 Difference]: With dead ends: 3612 [2024-12-02 08:47:32,557 INFO L226 Difference]: Without dead ends: 2179 [2024-12-02 08:47:32,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:47:32,558 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 211 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:32,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 1293 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:47:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2024-12-02 08:47:32,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1664. [2024-12-02 08:47:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1506 states have (on average 1.2224435590969456) internal successors, (1841), 1511 states have internal predecessors, (1841), 108 states have call successors, (108), 49 states have call predecessors, (108), 49 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:47:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2057 transitions. [2024-12-02 08:47:32,810 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2057 transitions. Word has length 156 [2024-12-02 08:47:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:32,810 INFO L471 AbstractCegarLoop]: Abstraction has 1664 states and 2057 transitions. [2024-12-02 08:47:32,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2057 transitions. [2024-12-02 08:47:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 08:47:32,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:32,811 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:32,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:33,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:33,012 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:33,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash 28094568, now seen corresponding path program 1 times [2024-12-02 08:47:33,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:33,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730279926] [2024-12-02 08:47:33,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:33,013 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 08:47:33,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:33,014 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:33,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:33,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:47:33,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:34,685 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 22 treesize of output 10 [2024-12-02 08:47:34,689 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 15 treesize of output 7 [2024-12-02 08:47:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 31 proven. 401 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 08:47:34,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:47:35,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:47:35,001 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 20 treesize of output 23 [2024-12-02 08:47:35,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:47:35,831 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 51 treesize of output 42 [2024-12-02 08:47:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-12-02 08:47:36,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:36,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730279926] [2024-12-02 08:47:36,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730279926] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:47:36,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:47:36,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2024-12-02 08:47:36,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353975427] [2024-12-02 08:47:36,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:47:36,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 08:47:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:36,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 08:47:36,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=762, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:47:36,087 INFO L87 Difference]: Start difference. First operand 1664 states and 2057 transitions. Second operand has 31 states, 25 states have (on average 5.16) internal successors, (129), 27 states have internal predecessors, (129), 11 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (36), 7 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 08:47:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:37,795 INFO L93 Difference]: Finished difference Result 3362 states and 4141 transitions. [2024-12-02 08:47:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 08:47:37,796 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 25 states have (on average 5.16) internal successors, (129), 27 states have internal predecessors, (129), 11 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (36), 7 states have call predecessors, (36), 11 states have call successors, (36) Word has length 157 [2024-12-02 08:47:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:37,799 INFO L225 Difference]: With dead ends: 3362 [2024-12-02 08:47:37,799 INFO L226 Difference]: Without dead ends: 1726 [2024-12-02 08:47:37,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=509, Invalid=1653, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 08:47:37,800 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 776 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:37,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1330 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:47:37,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2024-12-02 08:47:37,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1068. [2024-12-02 08:47:37,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 976 states have (on average 1.2079918032786885) internal successors, (1179), 980 states have internal predecessors, (1179), 61 states have call successors, (61), 30 states have call predecessors, (61), 30 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:47:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1301 transitions. [2024-12-02 08:47:37,999 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1301 transitions. Word has length 157 [2024-12-02 08:47:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:37,999 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1301 transitions. [2024-12-02 08:47:38,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 25 states have (on average 5.16) internal successors, (129), 27 states have internal predecessors, (129), 11 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (36), 7 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 08:47:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1301 transitions. [2024-12-02 08:47:38,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 08:47:38,001 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:38,001 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:38,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:38,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:38,201 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:38,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:38,201 INFO L85 PathProgramCache]: Analyzing trace with hash -105918938, now seen corresponding path program 1 times [2024-12-02 08:47:38,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:38,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44154218] [2024-12-02 08:47:38,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:38,202 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 08:47:38,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:38,203 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:38,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:38,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 08:47:38,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:39,700 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 08:47:39,962 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:47:39,962 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:47:40,951 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 68 treesize of output 44 [2024-12-02 08:47:40,997 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:47:40,997 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:40,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44154218] [2024-12-02 08:47:40,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44154218] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:40,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:47:40,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [12] total 25 [2024-12-02 08:47:40,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192456533] [2024-12-02 08:47:40,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:40,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:47:40,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:40,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:47:40,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:47:40,999 INFO L87 Difference]: Start difference. First operand 1068 states and 1301 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:45,536 INFO L93 Difference]: Finished difference Result 2501 states and 3033 transitions. [2024-12-02 08:47:45,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:47:45,539 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 157 [2024-12-02 08:47:45,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:45,541 INFO L225 Difference]: With dead ends: 2501 [2024-12-02 08:47:45,541 INFO L226 Difference]: Without dead ends: 1433 [2024-12-02 08:47:45,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=196, Invalid=926, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:47:45,543 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 372 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 77 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:45,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 2259 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 783 Invalid, 3 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 08:47:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2024-12-02 08:47:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1068. [2024-12-02 08:47:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 976 states have (on average 1.2059426229508197) internal successors, (1177), 980 states have internal predecessors, (1177), 61 states have call successors, (61), 30 states have call predecessors, (61), 30 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:47:45,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1299 transitions. [2024-12-02 08:47:45,741 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1299 transitions. Word has length 157 [2024-12-02 08:47:45,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:45,741 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1299 transitions. [2024-12-02 08:47:45,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1299 transitions. [2024-12-02 08:47:45,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 08:47:45,742 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:45,742 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:45,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:45,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:45,942 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:45,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:45,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1983868223, now seen corresponding path program 1 times [2024-12-02 08:47:45,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:45,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251449710] [2024-12-02 08:47:45,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:45,943 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 08:47:45,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:45,944 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:45,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:46,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:47:46,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:47,415 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 61 treesize of output 37 [2024-12-02 08:47:47,487 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 08:47:47,664 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 96 treesize of output 48 [2024-12-02 08:47:47,739 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 49 treesize of output 25 [2024-12-02 08:47:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 303 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:47:47,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:47:48,656 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 69 treesize of output 45 [2024-12-02 08:47:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:47:48,708 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:48,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251449710] [2024-12-02 08:47:48,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251449710] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:48,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:47:48,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 23 [2024-12-02 08:47:48,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335863938] [2024-12-02 08:47:48,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:48,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:47:48,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:48,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:47:48,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:47:48,710 INFO L87 Difference]: Start difference. First operand 1068 states and 1299 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:53,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:53,826 INFO L93 Difference]: Finished difference Result 2625 states and 3212 transitions. [2024-12-02 08:47:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:47:53,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 157 [2024-12-02 08:47:53,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:53,831 INFO L225 Difference]: With dead ends: 2625 [2024-12-02 08:47:53,831 INFO L226 Difference]: Without dead ends: 1585 [2024-12-02 08:47:53,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=142, Invalid=850, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:47:53,832 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 376 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 114 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:53,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1348 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 688 Invalid, 4 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 08:47:53,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-12-02 08:47:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1012. [2024-12-02 08:47:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 920 states have (on average 1.2) internal successors, (1104), 924 states have internal predecessors, (1104), 61 states have call successors, (61), 30 states have call predecessors, (61), 30 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:47:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1226 transitions. [2024-12-02 08:47:54,044 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1226 transitions. Word has length 157 [2024-12-02 08:47:54,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:54,044 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1226 transitions. [2024-12-02 08:47:54,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1226 transitions. [2024-12-02 08:47:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 08:47:54,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:54,045 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:54,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 08:47:54,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:54,246 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:54,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:54,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1568722927, now seen corresponding path program 1 times [2024-12-02 08:47:54,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:54,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922747626] [2024-12-02 08:47:54,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:54,246 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 08:47:54,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:54,248 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:54,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:54,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:47:54,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:55,749 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 69 treesize of output 33 [2024-12-02 08:47:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 303 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:47:55,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:47:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:47:55,972 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:47:55,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922747626] [2024-12-02 08:47:55,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922747626] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:47:55,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:47:55,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-12-02 08:47:55,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698709257] [2024-12-02 08:47:55,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:55,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:47:55,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:47:55,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:47:55,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:47:55,973 INFO L87 Difference]: Start difference. First operand 1012 states and 1226 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:56,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:56,890 INFO L93 Difference]: Finished difference Result 2464 states and 2980 transitions. [2024-12-02 08:47:56,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:47:56,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 157 [2024-12-02 08:47:56,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:56,894 INFO L225 Difference]: With dead ends: 2464 [2024-12-02 08:47:56,894 INFO L226 Difference]: Without dead ends: 1480 [2024-12-02 08:47:56,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:47:56,895 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 101 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:56,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 715 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:47:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2024-12-02 08:47:57,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1012. [2024-12-02 08:47:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 920 states have (on average 1.191304347826087) internal successors, (1096), 924 states have internal predecessors, (1096), 61 states have call successors, (61), 30 states have call predecessors, (61), 30 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:47:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1218 transitions. [2024-12-02 08:47:57,098 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1218 transitions. Word has length 157 [2024-12-02 08:47:57,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:57,098 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1218 transitions. [2024-12-02 08:47:57,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:47:57,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1218 transitions. [2024-12-02 08:47:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 08:47:57,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:57,100 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:57,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:57,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:47:57,300 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:57,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:57,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1146021101, now seen corresponding path program 1 times [2024-12-02 08:47:57,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:47:57,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790098831] [2024-12-02 08:47:57,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:57,301 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 08:47:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:47:57,302 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:57,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:47:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:57,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 08:47:57,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:47:58,793 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 08:47:59,185 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 61 treesize of output 37 [2024-12-02 08:47:59,252 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 97 treesize of output 49 [2024-12-02 08:47:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:47:59,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:48:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:48:02,076 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:02,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790098831] [2024-12-02 08:48:02,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790098831] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:02,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:48:02,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 25 [2024-12-02 08:48:02,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879816902] [2024-12-02 08:48:02,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:02,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:48:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:48:02,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:48:02,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:48:02,078 INFO L87 Difference]: Start difference. First operand 1012 states and 1218 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:10,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:10,873 INFO L93 Difference]: Finished difference Result 2316 states and 2796 transitions. [2024-12-02 08:48:10,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:48:10,874 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 157 [2024-12-02 08:48:10,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:10,877 INFO L225 Difference]: With dead ends: 2316 [2024-12-02 08:48:10,877 INFO L226 Difference]: Without dead ends: 1332 [2024-12-02 08:48:10,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 287 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=168, Invalid=888, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:48:10,878 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 274 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:10,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 2804 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-12-02 08:48:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-12-02 08:48:11,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1010. [2024-12-02 08:48:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 918 states have (on average 1.1895424836601307) internal successors, (1092), 922 states have internal predecessors, (1092), 61 states have call successors, (61), 30 states have call predecessors, (61), 30 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:48:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1214 transitions. [2024-12-02 08:48:11,084 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1214 transitions. Word has length 157 [2024-12-02 08:48:11,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:11,085 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1214 transitions. [2024-12-02 08:48:11,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:11,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1214 transitions. [2024-12-02 08:48:11,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:48:11,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:11,086 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:11,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:11,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:48:11,286 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:11,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:11,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1687071202, now seen corresponding path program 1 times [2024-12-02 08:48:11,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:48:11,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977593223] [2024-12-02 08:48:11,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:11,287 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 08:48:11,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:48:11,288 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:11,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:11,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 08:48:11,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:12,091 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 69 treesize of output 33 [2024-12-02 08:48:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:48:12,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:48:12,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977593223] [2024-12-02 08:48:12,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977593223] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:12,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:48:12,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:48:12,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756798128] [2024-12-02 08:48:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:12,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:48:12,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:48:12,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:48:12,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:48:12,152 INFO L87 Difference]: Start difference. First operand 1010 states and 1214 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:13,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:13,478 INFO L93 Difference]: Finished difference Result 2248 states and 2718 transitions. [2024-12-02 08:48:13,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:48:13,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-12-02 08:48:13,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:13,482 INFO L225 Difference]: With dead ends: 2248 [2024-12-02 08:48:13,482 INFO L226 Difference]: Without dead ends: 1266 [2024-12-02 08:48:13,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:48:13,483 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 228 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:13,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 564 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:48:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-12-02 08:48:13,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1000. [2024-12-02 08:48:13,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 908 states have (on average 1.1905286343612336) internal successors, (1081), 912 states have internal predecessors, (1081), 61 states have call successors, (61), 30 states have call predecessors, (61), 30 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:48:13,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1203 transitions. [2024-12-02 08:48:13,708 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1203 transitions. Word has length 158 [2024-12-02 08:48:13,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:13,708 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1203 transitions. [2024-12-02 08:48:13,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1203 transitions. [2024-12-02 08:48:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:48:13,709 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:13,709 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:13,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:13,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:48:13,909 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:13,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:13,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1906831516, now seen corresponding path program 1 times [2024-12-02 08:48:13,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:48:13,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106311780] [2024-12-02 08:48:13,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:13,910 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 08:48:13,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:48:13,912 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:13,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:14,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:48:14,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:15,378 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 08:48:15,709 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 128 treesize of output 92 [2024-12-02 08:48:15,711 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 161 treesize of output 89 [2024-12-02 08:48:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:48:15,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:48:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:48:16,084 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:16,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106311780] [2024-12-02 08:48:16,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106311780] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:16,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:48:16,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2024-12-02 08:48:16,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604041990] [2024-12-02 08:48:16,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:16,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:48:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:48:16,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:48:16,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:48:16,085 INFO L87 Difference]: Start difference. First operand 1000 states and 1203 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:17,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:17,436 INFO L93 Difference]: Finished difference Result 2421 states and 2905 transitions. [2024-12-02 08:48:17,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:48:17,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-12-02 08:48:17,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:17,440 INFO L225 Difference]: With dead ends: 2421 [2024-12-02 08:48:17,440 INFO L226 Difference]: Without dead ends: 1449 [2024-12-02 08:48:17,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:48:17,441 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 163 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:17,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 963 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:48:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-12-02 08:48:17,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 996. [2024-12-02 08:48:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 904 states have (on average 1.1880530973451326) internal successors, (1074), 908 states have internal predecessors, (1074), 61 states have call successors, (61), 30 states have call predecessors, (61), 30 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:48:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1196 transitions. [2024-12-02 08:48:17,664 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1196 transitions. Word has length 158 [2024-12-02 08:48:17,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:17,664 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1196 transitions. [2024-12-02 08:48:17,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1196 transitions. [2024-12-02 08:48:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:48:17,665 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:17,665 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:17,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:17,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:48:17,866 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:17,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:17,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1855605735, now seen corresponding path program 1 times [2024-12-02 08:48:17,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:48:17,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321792736] [2024-12-02 08:48:17,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:17,867 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 08:48:17,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:48:17,868 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:17,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:18,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:48:18,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:18,853 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 17 treesize of output 13 [2024-12-02 08:48:19,142 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 54 treesize of output 42 [2024-12-02 08:48:19,144 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 63 treesize of output 39 [2024-12-02 08:48:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:48:19,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:48:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:48:19,469 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:19,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321792736] [2024-12-02 08:48:19,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321792736] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:19,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:48:19,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2024-12-02 08:48:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634455291] [2024-12-02 08:48:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:19,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:48:19,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:48:19,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:48:19,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:48:19,471 INFO L87 Difference]: Start difference. First operand 996 states and 1196 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:20,026 INFO L93 Difference]: Finished difference Result 1821 states and 2182 transitions. [2024-12-02 08:48:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:48:20,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-12-02 08:48:20,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:20,031 INFO L225 Difference]: With dead ends: 1821 [2024-12-02 08:48:20,031 INFO L226 Difference]: Without dead ends: 1819 [2024-12-02 08:48:20,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:48:20,031 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 122 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:20,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 926 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:48:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2024-12-02 08:48:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1813. [2024-12-02 08:48:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1651 states have (on average 1.1847365233192004) internal successors, (1956), 1662 states have internal predecessors, (1956), 108 states have call successors, (108), 53 states have call predecessors, (108), 53 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:48:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2172 transitions. [2024-12-02 08:48:20,435 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2172 transitions. Word has length 158 [2024-12-02 08:48:20,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:20,435 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2172 transitions. [2024-12-02 08:48:20,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:20,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2172 transitions. [2024-12-02 08:48:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:48:20,436 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:20,436 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:20,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 08:48:20,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:48:20,637 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:20,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash -283128338, now seen corresponding path program 1 times [2024-12-02 08:48:20,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:48:20,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749841962] [2024-12-02 08:48:20,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:20,637 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 08:48:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:48:20,639 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:20,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:21,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:48:21,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:22,487 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 22 treesize of output 10 [2024-12-02 08:48:22,491 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 15 treesize of output 7 [2024-12-02 08:48:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 31 proven. 401 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 08:48:22,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:48:22,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:48:22,813 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 20 treesize of output 23 [2024-12-02 08:48:23,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:48:23,454 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 51 treesize of output 42 [2024-12-02 08:48:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-12-02 08:48:23,716 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:23,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749841962] [2024-12-02 08:48:23,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749841962] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:48:23,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:48:23,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2024-12-02 08:48:23,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544919772] [2024-12-02 08:48:23,716 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:48:23,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 08:48:23,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:48:23,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 08:48:23,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=762, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:48:23,717 INFO L87 Difference]: Start difference. First operand 1813 states and 2172 transitions. Second operand has 31 states, 25 states have (on average 5.84) internal successors, (146), 27 states have internal predecessors, (146), 11 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (36), 7 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 08:48:25,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:25,808 INFO L93 Difference]: Finished difference Result 3648 states and 4363 transitions. [2024-12-02 08:48:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 08:48:25,809 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 25 states have (on average 5.84) internal successors, (146), 27 states have internal predecessors, (146), 11 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (36), 7 states have call predecessors, (36), 11 states have call successors, (36) Word has length 158 [2024-12-02 08:48:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:25,812 INFO L225 Difference]: With dead ends: 3648 [2024-12-02 08:48:25,812 INFO L226 Difference]: Without dead ends: 1863 [2024-12-02 08:48:25,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=509, Invalid=1653, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 08:48:25,814 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 1108 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:25,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1450 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:48:25,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2024-12-02 08:48:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1813. [2024-12-02 08:48:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1651 states have (on average 1.1798909751665658) internal successors, (1948), 1662 states have internal predecessors, (1948), 108 states have call successors, (108), 53 states have call predecessors, (108), 53 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:48:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2164 transitions. [2024-12-02 08:48:26,232 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2164 transitions. Word has length 158 [2024-12-02 08:48:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:26,232 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2164 transitions. [2024-12-02 08:48:26,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 25 states have (on average 5.84) internal successors, (146), 27 states have internal predecessors, (146), 11 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (36), 7 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 08:48:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2164 transitions. [2024-12-02 08:48:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:48:26,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:26,234 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:26,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:26,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:48:26,435 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:26,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:26,435 INFO L85 PathProgramCache]: Analyzing trace with hash 396930032, now seen corresponding path program 1 times [2024-12-02 08:48:26,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:48:26,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999093569] [2024-12-02 08:48:26,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:26,435 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 08:48:26,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:48:26,437 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:26,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:26,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:48:26,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:26,882 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:48:26,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:48:26,883 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:26,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999093569] [2024-12-02 08:48:26,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999093569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:26,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:48:26,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:48:26,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663074987] [2024-12-02 08:48:26,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:26,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:48:26,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:48:26,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:48:26,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:48:26,884 INFO L87 Difference]: Start difference. First operand 1813 states and 2164 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:27,329 INFO L93 Difference]: Finished difference Result 3622 states and 4329 transitions. [2024-12-02 08:48:27,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:48:27,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-12-02 08:48:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:27,333 INFO L225 Difference]: With dead ends: 3622 [2024-12-02 08:48:27,333 INFO L226 Difference]: Without dead ends: 1837 [2024-12-02 08:48:27,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 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 08:48:27,334 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:27,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 801 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:48:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2024-12-02 08:48:27,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1825. [2024-12-02 08:48:27,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1663 states have (on average 1.1785929043896572) internal successors, (1960), 1674 states have internal predecessors, (1960), 108 states have call successors, (108), 53 states have call predecessors, (108), 53 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:48:27,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2176 transitions. [2024-12-02 08:48:27,747 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2176 transitions. Word has length 158 [2024-12-02 08:48:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:27,747 INFO L471 AbstractCegarLoop]: Abstraction has 1825 states and 2176 transitions. [2024-12-02 08:48:27,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:48:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2176 transitions. [2024-12-02 08:48:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:48:27,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:27,749 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:27,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:27,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:48:27,949 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:27,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:27,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1957222180, now seen corresponding path program 1 times [2024-12-02 08:48:27,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:48:27,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536526521] [2024-12-02 08:48:27,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:27,950 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 08:48:27,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:48:27,952 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:27,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:28,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:48:28,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:29,642 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 08:48:29,708 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 107 treesize of output 59 [2024-12-02 08:48:29,990 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 73 treesize of output 37 [2024-12-02 08:48:30,098 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 4 proven. 272 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-12-02 08:48:30,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:48:30,997 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:30,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536526521] [2024-12-02 08:48:30,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536526521] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:30,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1920025013] [2024-12-02 08:48:30,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:30,997 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:48:30,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:48:30,999 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:48:31,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2024-12-02 08:48:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:32,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 08:48:32,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:34,311 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 08:48:36,380 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 08:48:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 4 proven. 272 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-12-02 08:48:37,251 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:48:38,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1920025013] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:38,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:48:38,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 31 [2024-12-02 08:48:38,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656290262] [2024-12-02 08:48:38,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:48:38,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 08:48:38,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:48:38,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 08:48:38,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2095, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 08:48:38,995 INFO L87 Difference]: Start difference. First operand 1825 states and 2176 transitions. Second operand has 32 states, 30 states have (on average 4.5) internal successors, (135), 29 states have internal predecessors, (135), 6 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 4 states have call predecessors, (36), 6 states have call successors, (36) [2024-12-02 08:48:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:47,144 INFO L93 Difference]: Finished difference Result 4640 states and 5510 transitions. [2024-12-02 08:48:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 08:48:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.5) internal successors, (135), 29 states have internal predecessors, (135), 6 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 4 states have call predecessors, (36), 6 states have call successors, (36) Word has length 158 [2024-12-02 08:48:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:47,149 INFO L225 Difference]: With dead ends: 4640 [2024-12-02 08:48:47,149 INFO L226 Difference]: Without dead ends: 2843 [2024-12-02 08:48:47,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 338 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1460 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=695, Invalid=4707, Unknown=0, NotChecked=0, Total=5402 [2024-12-02 08:48:47,150 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 800 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:47,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 2709 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 08:48:47,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-12-02 08:48:47,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 1825. [2024-12-02 08:48:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1661 states have (on average 1.1788079470198676) internal successors, (1958), 1672 states have internal predecessors, (1958), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:48:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2174 transitions. [2024-12-02 08:48:47,574 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2174 transitions. Word has length 158 [2024-12-02 08:48:47,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:47,574 INFO L471 AbstractCegarLoop]: Abstraction has 1825 states and 2174 transitions. [2024-12-02 08:48:47,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.5) internal successors, (135), 29 states have internal predecessors, (135), 6 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 4 states have call predecessors, (36), 6 states have call successors, (36) [2024-12-02 08:48:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2174 transitions. [2024-12-02 08:48:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:48:47,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:47,576 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:47,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:47,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2024-12-02 08:48:47,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:48:47,976 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:47,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:47,977 INFO L85 PathProgramCache]: Analyzing trace with hash 151783846, now seen corresponding path program 1 times [2024-12-02 08:48:47,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:48:47,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800391253] [2024-12-02 08:48:47,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:47,977 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 08:48:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:48:47,979 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:47,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:48:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:48,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:48:48,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:49,534 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 08:48:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 4 proven. 272 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-12-02 08:48:49,778 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:48:50,215 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:48:50,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800391253] [2024-12-02 08:48:50,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800391253] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:48:50,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [613832547] [2024-12-02 08:48:50,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:50,215 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:48:50,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:48:50,217 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:48:50,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2024-12-02 08:48:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:52,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-12-02 08:48:52,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:48:54,325 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 08:48:55,552 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 08:48:58,564 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 08:48:58,976 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 68 treesize of output 32 [2024-12-02 08:48:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 4 proven. 320 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 08:48:59,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:49:01,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [613832547] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:49:01,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:49:01,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 24] total 36 [2024-12-02 08:49:01,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217050182] [2024-12-02 08:49:01,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:49:01,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 08:49:01,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:49:01,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 08:49:01,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=2560, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 08:49:01,929 INFO L87 Difference]: Start difference. First operand 1825 states and 2174 transitions. Second operand has 37 states, 34 states have (on average 4.0588235294117645) internal successors, (138), 32 states have internal predecessors, (138), 7 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 08:49:19,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:19,926 INFO L93 Difference]: Finished difference Result 6008 states and 7103 transitions. [2024-12-02 08:49:19,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 08:49:19,927 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 34 states have (on average 4.0588235294117645) internal successors, (138), 32 states have internal predecessors, (138), 7 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) Word has length 158 [2024-12-02 08:49:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:19,931 INFO L225 Difference]: With dead ends: 6008 [2024-12-02 08:49:19,931 INFO L226 Difference]: Without dead ends: 4211 [2024-12-02 08:49:19,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 334 SyntacticMatches, 2 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4420 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=1586, Invalid=12694, Unknown=0, NotChecked=0, Total=14280 [2024-12-02 08:49:19,934 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 1657 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 4029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:19,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 3819 Invalid, 4029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-12-02 08:49:19,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2024-12-02 08:49:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 1779. [2024-12-02 08:49:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1615 states have (on average 1.1770897832817337) internal successors, (1901), 1626 states have internal predecessors, (1901), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:49:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2117 transitions. [2024-12-02 08:49:20,390 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2117 transitions. Word has length 158 [2024-12-02 08:49:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:20,390 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 2117 transitions. [2024-12-02 08:49:20,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 34 states have (on average 4.0588235294117645) internal successors, (138), 32 states have internal predecessors, (138), 7 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 08:49:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2117 transitions. [2024-12-02 08:49:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:49:20,391 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:20,391 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:20,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:49:20,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2024-12-02 08:49:20,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:49:20,792 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:20,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:20,792 INFO L85 PathProgramCache]: Analyzing trace with hash -592621179, now seen corresponding path program 1 times [2024-12-02 08:49:20,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:49:20,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889489582] [2024-12-02 08:49:20,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:20,793 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 08:49:20,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:49:20,794 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:20,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:21,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:49:21,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:49:22,274 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 08:49:22,565 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 61 treesize of output 37 [2024-12-02 08:49:22,634 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 97 treesize of output 49 [2024-12-02 08:49:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:49:22,802 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:49:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:49:24,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:49:24,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889489582] [2024-12-02 08:49:24,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889489582] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:49:24,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:49:24,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2024-12-02 08:49:24,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856239950] [2024-12-02 08:49:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:24,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:49:24,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:49:24,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:49:24,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:49:24,013 INFO L87 Difference]: Start difference. First operand 1779 states and 2117 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:28,564 INFO L93 Difference]: Finished difference Result 4166 states and 4967 transitions. [2024-12-02 08:49:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:49:28,565 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-12-02 08:49:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:28,569 INFO L225 Difference]: With dead ends: 4166 [2024-12-02 08:49:28,569 INFO L226 Difference]: Without dead ends: 2415 [2024-12-02 08:49:28,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:49:28,570 INFO L435 NwaCegarLoop]: 344 mSDtfsCounter, 193 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:28,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 2751 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 08:49:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2024-12-02 08:49:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 1763. [2024-12-02 08:49:28,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1599 states have (on average 1.176360225140713) internal successors, (1881), 1610 states have internal predecessors, (1881), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:49:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2097 transitions. [2024-12-02 08:49:29,002 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2097 transitions. Word has length 158 [2024-12-02 08:49:29,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:29,002 INFO L471 AbstractCegarLoop]: Abstraction has 1763 states and 2097 transitions. [2024-12-02 08:49:29,002 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:29,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2097 transitions. [2024-12-02 08:49:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 08:49:29,003 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:29,003 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:29,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:29,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:49:29,204 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:29,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:29,204 INFO L85 PathProgramCache]: Analyzing trace with hash 39866942, now seen corresponding path program 1 times [2024-12-02 08:49:29,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:49:29,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858309531] [2024-12-02 08:49:29,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:29,205 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 08:49:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:49:29,206 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:29,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:29,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 08:49:29,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:49:32,956 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 08:49:34,251 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 85 treesize of output 49 [2024-12-02 08:49:35,237 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 86 treesize of output 50 [2024-12-02 08:49:35,588 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 77 treesize of output 41 [2024-12-02 08:49:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:49:35,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:49:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:49:38,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:49:38,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858309531] [2024-12-02 08:49:38,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858309531] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:49:38,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:49:38,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [26] total 38 [2024-12-02 08:49:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454162872] [2024-12-02 08:49:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:38,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:49:38,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:49:38,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:49:38,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1250, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 08:49:38,602 INFO L87 Difference]: Start difference. First operand 1763 states and 2097 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:43,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:43,254 INFO L93 Difference]: Finished difference Result 4442 states and 5323 transitions. [2024-12-02 08:49:43,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:49:43,256 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2024-12-02 08:49:43,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:43,260 INFO L225 Difference]: With dead ends: 4442 [2024-12-02 08:49:43,260 INFO L226 Difference]: Without dead ends: 2707 [2024-12-02 08:49:43,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 08:49:43,261 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 454 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:43,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1693 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 08:49:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2024-12-02 08:49:43,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 1915. [2024-12-02 08:49:43,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1751 states have (on average 1.1724728726442033) internal successors, (2053), 1762 states have internal predecessors, (2053), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:49:43,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2269 transitions. [2024-12-02 08:49:43,692 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2269 transitions. Word has length 159 [2024-12-02 08:49:43,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:43,692 INFO L471 AbstractCegarLoop]: Abstraction has 1915 states and 2269 transitions. [2024-12-02 08:49:43,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:43,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2269 transitions. [2024-12-02 08:49:43,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 08:49:43,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:43,694 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:43,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:43,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:49:43,894 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:43,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1208478624, now seen corresponding path program 1 times [2024-12-02 08:49:43,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:49:43,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964463499] [2024-12-02 08:49:43,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:43,895 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 08:49:43,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:49:43,896 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:43,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:44,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:49:44,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:49:45,506 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 46 treesize of output 22 [2024-12-02 08:49:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:49:45,559 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:49:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:49:45,783 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:49:45,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964463499] [2024-12-02 08:49:45,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964463499] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:49:45,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:49:45,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-12-02 08:49:45,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95396600] [2024-12-02 08:49:45,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:45,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:49:45,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:49:45,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:49:45,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:49:45,784 INFO L87 Difference]: Start difference. First operand 1915 states and 2269 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:46,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:46,965 INFO L93 Difference]: Finished difference Result 4688 states and 5550 transitions. [2024-12-02 08:49:46,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:49:46,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2024-12-02 08:49:46,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:46,970 INFO L225 Difference]: With dead ends: 4688 [2024-12-02 08:49:46,970 INFO L226 Difference]: Without dead ends: 2801 [2024-12-02 08:49:46,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 305 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:49:46,971 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 87 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:46,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 516 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:49:46,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2024-12-02 08:49:47,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2243. [2024-12-02 08:49:47,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2079 states have (on average 1.1596921596921597) internal successors, (2411), 2090 states have internal predecessors, (2411), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:49:47,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2627 transitions. [2024-12-02 08:49:47,403 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2627 transitions. Word has length 159 [2024-12-02 08:49:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:47,403 INFO L471 AbstractCegarLoop]: Abstraction has 2243 states and 2627 transitions. [2024-12-02 08:49:47,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:47,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2627 transitions. [2024-12-02 08:49:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 08:49:47,405 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:47,405 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:47,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:47,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:49:47,605 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:47,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1909543202, now seen corresponding path program 1 times [2024-12-02 08:49:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:49:47,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346751950] [2024-12-02 08:49:47,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:47,606 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 08:49:47,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:49:47,607 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:47,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:48,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 08:49:48,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:49:49,055 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 08:49:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:49:49,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:49:50,750 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:49:50,750 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:49:50,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346751950] [2024-12-02 08:49:50,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346751950] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:49:50,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:49:50,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 22 [2024-12-02 08:49:50,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62116048] [2024-12-02 08:49:50,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:50,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:49:50,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:49:50,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:49:50,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:49:50,751 INFO L87 Difference]: Start difference. First operand 2243 states and 2627 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:54,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:54,407 INFO L93 Difference]: Finished difference Result 5466 states and 6455 transitions. [2024-12-02 08:49:54,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:49:54,408 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2024-12-02 08:49:54,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:54,413 INFO L225 Difference]: With dead ends: 5466 [2024-12-02 08:49:54,413 INFO L226 Difference]: Without dead ends: 3251 [2024-12-02 08:49:54,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=178, Invalid=878, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:49:54,415 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 354 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:54,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1749 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:49:54,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2024-12-02 08:49:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 2279. [2024-12-02 08:49:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2115 states have (on average 1.160756501182033) internal successors, (2455), 2126 states have internal predecessors, (2455), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:49:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2671 transitions. [2024-12-02 08:49:54,858 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2671 transitions. Word has length 159 [2024-12-02 08:49:54,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:54,859 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 2671 transitions. [2024-12-02 08:49:54,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:49:54,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2671 transitions. [2024-12-02 08:49:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 08:49:54,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:54,860 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:54,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:55,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:49:55,061 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:55,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:55,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1309065899, now seen corresponding path program 1 times [2024-12-02 08:49:55,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:49:55,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939492145] [2024-12-02 08:49:55,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:55,062 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 08:49:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:49:55,063 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:55,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:49:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:55,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:49:55,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:49:56,801 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 70 treesize of output 34 [2024-12-02 08:49:56,860 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 08:49:57,036 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 49 treesize of output 25 [2024-12-02 08:49:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:49:57,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:49:57,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:49:57,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939492145] [2024-12-02 08:49:57,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939492145] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:49:57,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1705562801] [2024-12-02 08:49:57,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:57,893 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:49:57,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:49:57,895 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:49:57,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2024-12-02 08:49:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:59,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:49:59,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:49:59,551 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 45 treesize of output 21 [2024-12-02 08:49:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:49:59,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:49:59,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1705562801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:49:59,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:49:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-12-02 08:49:59,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428900996] [2024-12-02 08:49:59,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:59,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:49:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:49:59,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:49:59,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:49:59,692 INFO L87 Difference]: Start difference. First operand 2279 states and 2671 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:01,625 INFO L93 Difference]: Finished difference Result 5655 states and 6665 transitions. [2024-12-02 08:50:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:50:01,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2024-12-02 08:50:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:01,631 INFO L225 Difference]: With dead ends: 5655 [2024-12-02 08:50:01,631 INFO L226 Difference]: Without dead ends: 3404 [2024-12-02 08:50:01,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 335 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:50:01,632 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 134 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:01,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 921 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:50:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-12-02 08:50:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2523. [2024-12-02 08:50:02,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2359 states have (on average 1.1509114031369225) internal successors, (2715), 2370 states have internal predecessors, (2715), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 2931 transitions. [2024-12-02 08:50:02,089 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 2931 transitions. Word has length 159 [2024-12-02 08:50:02,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:02,090 INFO L471 AbstractCegarLoop]: Abstraction has 2523 states and 2931 transitions. [2024-12-02 08:50:02,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 2931 transitions. [2024-12-02 08:50:02,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:50:02,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:02,092 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:02,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 08:50:02,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2024-12-02 08:50:02,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:50:02,492 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:02,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:02,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1957732647, now seen corresponding path program 1 times [2024-12-02 08:50:02,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:02,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328288065] [2024-12-02 08:50:02,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:02,493 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 08:50:02,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:02,495 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:02,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:02,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:50:02,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:04,274 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 70 treesize of output 34 [2024-12-02 08:50:05,131 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 49 treesize of output 25 [2024-12-02 08:50:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:50:05,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:06,033 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 65 treesize of output 41 [2024-12-02 08:50:06,393 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:06,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328288065] [2024-12-02 08:50:06,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328288065] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:06,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1527195633] [2024-12-02 08:50:06,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:06,394 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:50:06,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:50:06,395 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:50:06,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2024-12-02 08:50:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:07,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:50:07,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:08,191 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 46 treesize of output 22 [2024-12-02 08:50:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:08,365 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:08,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1527195633] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:08,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:08,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2024-12-02 08:50:08,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030076354] [2024-12-02 08:50:08,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:08,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:50:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:08,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:50:08,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:50:08,366 INFO L87 Difference]: Start difference. First operand 2523 states and 2931 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:10,354 INFO L93 Difference]: Finished difference Result 5923 states and 6945 transitions. [2024-12-02 08:50:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:50:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-12-02 08:50:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:10,359 INFO L225 Difference]: With dead ends: 5923 [2024-12-02 08:50:10,359 INFO L226 Difference]: Without dead ends: 3428 [2024-12-02 08:50:10,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=112, Invalid=758, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:50:10,361 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 133 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:10,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1002 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:50:10,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2024-12-02 08:50:10,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 2563. [2024-12-02 08:50:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2399 states have (on average 1.1483951646519384) internal successors, (2755), 2410 states have internal predecessors, (2755), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 2971 transitions. [2024-12-02 08:50:10,820 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 2971 transitions. Word has length 161 [2024-12-02 08:50:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:10,820 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 2971 transitions. [2024-12-02 08:50:10,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 2971 transitions. [2024-12-02 08:50:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:50:10,822 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:10,822 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:10,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (80)] Ended with exit code 0 [2024-12-02 08:50:11,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:11,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:11,223 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:11,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:11,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2028247034, now seen corresponding path program 1 times [2024-12-02 08:50:11,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:11,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127670073] [2024-12-02 08:50:11,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:11,224 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 08:50:11,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:11,225 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:11,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:11,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:50:11,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:12,901 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 15 treesize of output 1 [2024-12-02 08:50:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:50:13,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:14,001 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:14,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127670073] [2024-12-02 08:50:14,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127670073] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:14,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1141594213] [2024-12-02 08:50:14,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:14,002 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:50:14,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:50:14,003 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:50:14,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2024-12-02 08:50:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:15,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:50:15,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:15,747 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 46 treesize of output 22 [2024-12-02 08:50:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:16,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:16,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1141594213] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:16,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:16,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18 [2024-12-02 08:50:16,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054767565] [2024-12-02 08:50:16,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:16,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:50:16,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:16,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:50:16,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:50:16,275 INFO L87 Difference]: Start difference. First operand 2563 states and 2971 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:18,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:18,571 INFO L93 Difference]: Finished difference Result 5626 states and 6546 transitions. [2024-12-02 08:50:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:50:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-12-02 08:50:18,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:18,577 INFO L225 Difference]: With dead ends: 5626 [2024-12-02 08:50:18,577 INFO L226 Difference]: Without dead ends: 3091 [2024-12-02 08:50:18,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:50:18,579 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 97 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:18,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1227 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:50:18,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2024-12-02 08:50:19,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 2439. [2024-12-02 08:50:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2275 states have (on average 1.152967032967033) internal successors, (2623), 2286 states have internal predecessors, (2623), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 2839 transitions. [2024-12-02 08:50:19,046 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 2839 transitions. Word has length 161 [2024-12-02 08:50:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:19,047 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 2839 transitions. [2024-12-02 08:50:19,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 2839 transitions. [2024-12-02 08:50:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:50:19,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:19,049 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:19,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:19,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (82)] Ended with exit code 0 [2024-12-02 08:50:19,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:50:19,449 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:19,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1873693252, now seen corresponding path program 1 times [2024-12-02 08:50:19,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:19,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556568347] [2024-12-02 08:50:19,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:19,450 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 08:50:19,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:19,452 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:19,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:19,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:50:19,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:20,136 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 08:50:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:20,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:20,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:20,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556568347] [2024-12-02 08:50:20,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556568347] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:20,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:20,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:50:20,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021639145] [2024-12-02 08:50:20,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:20,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:50:20,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:20,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:50:20,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:50:20,282 INFO L87 Difference]: Start difference. First operand 2439 states and 2839 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:22,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:22,029 INFO L93 Difference]: Finished difference Result 5258 states and 6122 transitions. [2024-12-02 08:50:22,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:50:22,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-12-02 08:50:22,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:22,035 INFO L225 Difference]: With dead ends: 5258 [2024-12-02 08:50:22,035 INFO L226 Difference]: Without dead ends: 2847 [2024-12-02 08:50:22,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:50:22,037 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 220 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:22,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 632 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:50:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2024-12-02 08:50:22,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2345. [2024-12-02 08:50:22,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2181 states have (on average 1.1513067400275103) internal successors, (2511), 2192 states have internal predecessors, (2511), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 2727 transitions. [2024-12-02 08:50:22,505 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 2727 transitions. Word has length 161 [2024-12-02 08:50:22,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:22,505 INFO L471 AbstractCegarLoop]: Abstraction has 2345 states and 2727 transitions. [2024-12-02 08:50:22,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:22,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 2727 transitions. [2024-12-02 08:50:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:50:22,507 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:22,507 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:22,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:22,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:22,708 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:22,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:22,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1535960852, now seen corresponding path program 1 times [2024-12-02 08:50:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:22,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651099412] [2024-12-02 08:50:22,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:22,708 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 08:50:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:22,710 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:22,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:23,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:50:23,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:23,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:23,186 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:23,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651099412] [2024-12-02 08:50:23,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651099412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:23,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:23,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:50:23,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625773369] [2024-12-02 08:50:23,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:23,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:50:23,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:23,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:50:23,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:50:23,187 INFO L87 Difference]: Start difference. First operand 2345 states and 2727 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:23,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:23,650 INFO L93 Difference]: Finished difference Result 4670 states and 5439 transitions. [2024-12-02 08:50:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:50:23,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-12-02 08:50:23,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:23,655 INFO L225 Difference]: With dead ends: 4670 [2024-12-02 08:50:23,655 INFO L226 Difference]: Without dead ends: 2353 [2024-12-02 08:50:23,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 08:50:23,657 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:23,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:50:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2024-12-02 08:50:24,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2353. [2024-12-02 08:50:24,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2353 states, 2189 states have (on average 1.150753768844221) internal successors, (2519), 2200 states have internal predecessors, (2519), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 2735 transitions. [2024-12-02 08:50:24,121 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 2735 transitions. Word has length 161 [2024-12-02 08:50:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:24,121 INFO L471 AbstractCegarLoop]: Abstraction has 2353 states and 2735 transitions. [2024-12-02 08:50:24,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 2735 transitions. [2024-12-02 08:50:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:50:24,123 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:24,123 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:24,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:24,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:24,323 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:24,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1949659818, now seen corresponding path program 1 times [2024-12-02 08:50:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636376038] [2024-12-02 08:50:24,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:24,324 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 08:50:24,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:24,325 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:24,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:24,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:50:24,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:25,406 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 17 treesize of output 13 [2024-12-02 08:50:25,630 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 54 treesize of output 42 [2024-12-02 08:50:25,633 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 63 treesize of output 39 [2024-12-02 08:50:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:50:25,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:25,943 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:25,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636376038] [2024-12-02 08:50:25,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636376038] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:25,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:25,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 23 [2024-12-02 08:50:25,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010492963] [2024-12-02 08:50:25,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:25,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:50:25,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:25,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:50:25,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:50:25,944 INFO L87 Difference]: Start difference. First operand 2353 states and 2735 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:26,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:26,697 INFO L93 Difference]: Finished difference Result 2381 states and 2765 transitions. [2024-12-02 08:50:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:50:26,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-12-02 08:50:26,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:26,702 INFO L225 Difference]: With dead ends: 2381 [2024-12-02 08:50:26,703 INFO L226 Difference]: Without dead ends: 2379 [2024-12-02 08:50:26,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:50:26,703 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 119 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:26,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1073 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:50:26,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-12-02 08:50:27,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2357. [2024-12-02 08:50:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2193 states have (on average 1.1504787961696306) internal successors, (2523), 2204 states have internal predecessors, (2523), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 2739 transitions. [2024-12-02 08:50:27,168 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 2739 transitions. Word has length 161 [2024-12-02 08:50:27,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:27,169 INFO L471 AbstractCegarLoop]: Abstraction has 2357 states and 2739 transitions. [2024-12-02 08:50:27,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 2739 transitions. [2024-12-02 08:50:27,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:50:27,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:27,170 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:27,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:27,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:27,370 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:27,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:27,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1459635750, now seen corresponding path program 1 times [2024-12-02 08:50:27,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:27,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343108868] [2024-12-02 08:50:27,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:27,371 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 08:50:27,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:27,373 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:27,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:27,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:50:27,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:27,909 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 61 treesize of output 37 [2024-12-02 08:50:28,001 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 08:50:28,045 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 49 treesize of output 25 [2024-12-02 08:50:28,148 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 45 treesize of output 21 [2024-12-02 08:50:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:28,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:28,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:28,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343108868] [2024-12-02 08:50:28,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343108868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:28,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:28,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:50:28,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174981184] [2024-12-02 08:50:28,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:28,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:50:28,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:28,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:50:28,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:50:28,241 INFO L87 Difference]: Start difference. First operand 2357 states and 2739 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:31,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:31,505 INFO L93 Difference]: Finished difference Result 5203 states and 6042 transitions. [2024-12-02 08:50:31,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:50:31,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-12-02 08:50:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:31,511 INFO L225 Difference]: With dead ends: 5203 [2024-12-02 08:50:31,511 INFO L226 Difference]: Without dead ends: 2874 [2024-12-02 08:50:31,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:50:31,512 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 215 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:31,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1705 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:50:31,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2024-12-02 08:50:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2365. [2024-12-02 08:50:31,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2201 states have (on average 1.1508405270331667) internal successors, (2533), 2212 states have internal predecessors, (2533), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:31,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 2749 transitions. [2024-12-02 08:50:31,979 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 2749 transitions. Word has length 161 [2024-12-02 08:50:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:31,980 INFO L471 AbstractCegarLoop]: Abstraction has 2365 states and 2749 transitions. [2024-12-02 08:50:31,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:31,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 2749 transitions. [2024-12-02 08:50:31,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:50:31,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:31,982 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:31,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:32,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:32,182 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:32,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:32,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1846520456, now seen corresponding path program 1 times [2024-12-02 08:50:32,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:32,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35066226] [2024-12-02 08:50:32,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:32,183 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 08:50:32,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:32,184 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:32,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:32,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:50:32,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:33,963 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 08:50:34,167 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 70 treesize of output 34 [2024-12-02 08:50:34,287 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 45 treesize of output 21 [2024-12-02 08:50:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:50:34,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:35,097 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:35,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35066226] [2024-12-02 08:50:35,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35066226] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:35,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1064878550] [2024-12-02 08:50:35,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:35,098 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:50:35,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:50:35,099 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:50:35,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2024-12-02 08:50:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:36,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:50:36,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:36,663 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 62 treesize of output 38 [2024-12-02 08:50:36,796 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 44 treesize of output 20 [2024-12-02 08:50:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:36,935 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:36,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1064878550] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:36,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:36,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2024-12-02 08:50:36,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257988628] [2024-12-02 08:50:36,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:36,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:50:36,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:36,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:50:36,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:50:36,936 INFO L87 Difference]: Start difference. First operand 2365 states and 2749 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:38,485 INFO L93 Difference]: Finished difference Result 5382 states and 6282 transitions. [2024-12-02 08:50:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:50:38,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 161 [2024-12-02 08:50:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:38,491 INFO L225 Difference]: With dead ends: 5382 [2024-12-02 08:50:38,491 INFO L226 Difference]: Without dead ends: 3045 [2024-12-02 08:50:38,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 344 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:50:38,493 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 104 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:38,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1010 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:50:38,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2024-12-02 08:50:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2041. [2024-12-02 08:50:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 1877 states have (on average 1.156632924880128) internal successors, (2171), 1888 states have internal predecessors, (2171), 108 states have call successors, (108), 55 states have call predecessors, (108), 55 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:50:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2387 transitions. [2024-12-02 08:50:38,963 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2387 transitions. Word has length 161 [2024-12-02 08:50:38,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:38,963 INFO L471 AbstractCegarLoop]: Abstraction has 2041 states and 2387 transitions. [2024-12-02 08:50:38,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2387 transitions. [2024-12-02 08:50:38,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:50:38,965 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:38,965 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:38,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (88)] Ended with exit code 0 [2024-12-02 08:50:39,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:50:39,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:39,366 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:39,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1935010332, now seen corresponding path program 1 times [2024-12-02 08:50:39,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:39,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577690425] [2024-12-02 08:50:39,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:39,366 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 08:50:39,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:39,368 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:39,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:39,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:50:39,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:40,492 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 08:50:40,768 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 49 treesize of output 37 [2024-12-02 08:50:40,770 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 37 [2024-12-02 08:50:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:50:40,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:41,001 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 22 [2024-12-02 08:50:41,005 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:50:41,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:50:41,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2024-12-02 08:50:41,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 35 [2024-12-02 08:50:41,550 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:50:41,550 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 40 treesize of output 31 [2024-12-02 08:50:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-12-02 08:50:41,744 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:41,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577690425] [2024-12-02 08:50:41,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577690425] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:41,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:41,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 30 [2024-12-02 08:50:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167369672] [2024-12-02 08:50:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:41,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:50:41,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:41,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:50:41,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:50:41,745 INFO L87 Difference]: Start difference. First operand 2041 states and 2387 transitions. Second operand has 17 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:50:43,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:43,012 INFO L93 Difference]: Finished difference Result 2091 states and 2436 transitions. [2024-12-02 08:50:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:50:43,013 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2024-12-02 08:50:43,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:43,017 INFO L225 Difference]: With dead ends: 2091 [2024-12-02 08:50:43,017 INFO L226 Difference]: Without dead ends: 2089 [2024-12-02 08:50:43,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 294 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=336, Invalid=1470, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 08:50:43,018 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 699 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:43,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 857 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:50:43,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2024-12-02 08:50:43,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1808. [2024-12-02 08:50:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1711 states have (on average 1.1636469900642898) internal successors, (1991), 1715 states have internal predecessors, (1991), 61 states have call successors, (61), 35 states have call predecessors, (61), 35 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:50:43,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2113 transitions. [2024-12-02 08:50:43,314 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2113 transitions. Word has length 162 [2024-12-02 08:50:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:43,314 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2113 transitions. [2024-12-02 08:50:43,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:50:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2113 transitions. [2024-12-02 08:50:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:50:43,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:43,316 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:43,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:43,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:43,516 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:43,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash 695198823, now seen corresponding path program 1 times [2024-12-02 08:50:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:43,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173772675] [2024-12-02 08:50:43,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:43,517 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 08:50:43,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:43,518 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:43,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:43,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:50:43,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:44,592 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 36 treesize of output 24 [2024-12-02 08:50:44,595 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 13 treesize of output 9 [2024-12-02 08:50:44,905 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 08:50:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:50:45,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:46,060 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 08:50:46,060 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 40 treesize of output 31 [2024-12-02 08:50:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-12-02 08:50:46,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:46,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173772675] [2024-12-02 08:50:46,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173772675] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:46,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:46,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [19] total 34 [2024-12-02 08:50:46,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073696553] [2024-12-02 08:50:46,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:46,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:50:46,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:46,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:50:46,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:50:46,311 INFO L87 Difference]: Start difference. First operand 1808 states and 2113 transitions. Second operand has 19 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:50:48,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:48,466 INFO L93 Difference]: Finished difference Result 2169 states and 2528 transitions. [2024-12-02 08:50:48,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 08:50:48,467 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 163 [2024-12-02 08:50:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:48,471 INFO L225 Difference]: With dead ends: 2169 [2024-12-02 08:50:48,471 INFO L226 Difference]: Without dead ends: 2167 [2024-12-02 08:50:48,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 294 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=548, Invalid=2644, Unknown=0, NotChecked=0, Total=3192 [2024-12-02 08:50:48,472 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 814 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:48,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 1327 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:50:48,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2024-12-02 08:50:48,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1820. [2024-12-02 08:50:48,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1723 states have (on average 1.1648287869994196) internal successors, (2007), 1727 states have internal predecessors, (2007), 61 states have call successors, (61), 35 states have call predecessors, (61), 35 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:50:48,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2129 transitions. [2024-12-02 08:50:48,770 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2129 transitions. Word has length 163 [2024-12-02 08:50:48,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:48,770 INFO L471 AbstractCegarLoop]: Abstraction has 1820 states and 2129 transitions. [2024-12-02 08:50:48,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 08:50:48,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2129 transitions. [2024-12-02 08:50:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:50:48,771 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:48,771 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:48,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:48,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:48,972 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:48,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:48,972 INFO L85 PathProgramCache]: Analyzing trace with hash -52551315, now seen corresponding path program 1 times [2024-12-02 08:50:48,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:48,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588134398] [2024-12-02 08:50:48,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:48,973 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 08:50:48,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:48,974 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:48,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:49,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:50:49,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:49,687 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 08:50:49,761 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 69 treesize of output 33 [2024-12-02 08:50:49,818 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 45 treesize of output 21 [2024-12-02 08:50:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:49,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:49,867 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:49,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588134398] [2024-12-02 08:50:49,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588134398] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:49,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:49,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:50:49,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315393806] [2024-12-02 08:50:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:49,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:50:49,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:49,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:50:49,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:50:49,867 INFO L87 Difference]: Start difference. First operand 1820 states and 2129 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:51,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:51,480 INFO L93 Difference]: Finished difference Result 3436 states and 4040 transitions. [2024-12-02 08:50:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:50:51,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-12-02 08:50:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:51,485 INFO L225 Difference]: With dead ends: 3436 [2024-12-02 08:50:51,485 INFO L226 Difference]: Without dead ends: 1644 [2024-12-02 08:50:51,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:50:51,487 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 179 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:51,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1052 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:50:51,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2024-12-02 08:50:51,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1318. [2024-12-02 08:50:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1246 states have (on average 1.1508828250401284) internal successors, (1434), 1248 states have internal predecessors, (1434), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:50:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1522 transitions. [2024-12-02 08:50:51,719 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1522 transitions. Word has length 163 [2024-12-02 08:50:51,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:51,719 INFO L471 AbstractCegarLoop]: Abstraction has 1318 states and 1522 transitions. [2024-12-02 08:50:51,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:51,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1522 transitions. [2024-12-02 08:50:51,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:50:51,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:51,720 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:51,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:51,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:51,921 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:51,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1430970323, now seen corresponding path program 1 times [2024-12-02 08:50:51,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:51,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93635820] [2024-12-02 08:50:51,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:51,921 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 08:50:51,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:51,923 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:51,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:52,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:50:52,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:52,604 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 08:50:52,856 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 69 treesize of output 33 [2024-12-02 08:50:52,921 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 45 treesize of output 21 [2024-12-02 08:50:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:52,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:52,975 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:52,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93635820] [2024-12-02 08:50:52,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93635820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:52,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:50:52,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:50:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642692148] [2024-12-02 08:50:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:52,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:50:52,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:52,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:50:52,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:50:52,975 INFO L87 Difference]: Start difference. First operand 1318 states and 1522 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:55,440 INFO L93 Difference]: Finished difference Result 2998 states and 3477 transitions. [2024-12-02 08:50:55,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:50:55,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-12-02 08:50:55,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:55,444 INFO L225 Difference]: With dead ends: 2998 [2024-12-02 08:50:55,444 INFO L226 Difference]: Without dead ends: 1708 [2024-12-02 08:50:55,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:50:55,445 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 225 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:55,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1683 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 08:50:55,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2024-12-02 08:50:55,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1350. [2024-12-02 08:50:55,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1278 states have (on average 1.1533646322378717) internal successors, (1474), 1280 states have internal predecessors, (1474), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:50:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1562 transitions. [2024-12-02 08:50:55,671 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1562 transitions. Word has length 163 [2024-12-02 08:50:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:55,671 INFO L471 AbstractCegarLoop]: Abstraction has 1350 states and 1562 transitions. [2024-12-02 08:50:55,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 9 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1562 transitions. [2024-12-02 08:50:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:50:55,672 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:55,673 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:55,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:55,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:55,873 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:55,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1412968269, now seen corresponding path program 1 times [2024-12-02 08:50:55,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:55,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040064391] [2024-12-02 08:50:55,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:55,874 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 08:50:55,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:55,875 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:55,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:56,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:50:56,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:58,040 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 67 treesize of output 31 [2024-12-02 08:50:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 303 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:50:58,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:58,343 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:50:58,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:50:58,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040064391] [2024-12-02 08:50:58,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040064391] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:58,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:58,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-12-02 08:50:58,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882251231] [2024-12-02 08:50:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:58,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:50:58,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:50:58,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:50:58,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:50:58,344 INFO L87 Difference]: Start difference. First operand 1350 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:59,064 INFO L93 Difference]: Finished difference Result 2831 states and 3281 transitions. [2024-12-02 08:50:59,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:50:59,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-12-02 08:50:59,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:59,069 INFO L225 Difference]: With dead ends: 2831 [2024-12-02 08:50:59,069 INFO L226 Difference]: Without dead ends: 1509 [2024-12-02 08:50:59,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:50:59,070 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 138 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:59,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 562 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:50:59,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-12-02 08:50:59,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1350. [2024-12-02 08:50:59,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1278 states have (on average 1.1471048513302033) internal successors, (1466), 1280 states have internal predecessors, (1466), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:50:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1554 transitions. [2024-12-02 08:50:59,297 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1554 transitions. Word has length 163 [2024-12-02 08:50:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:59,297 INFO L471 AbstractCegarLoop]: Abstraction has 1350 states and 1554 transitions. [2024-12-02 08:50:59,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:50:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1554 transitions. [2024-12-02 08:50:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:50:59,299 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:59,299 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:59,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:59,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:50:59,499 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:59,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1805995279, now seen corresponding path program 1 times [2024-12-02 08:50:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:50:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200809936] [2024-12-02 08:50:59,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:59,500 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 08:50:59,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:50:59,501 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:59,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:50:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:00,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:51:00,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:00,932 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 106 treesize of output 58 [2024-12-02 08:51:01,028 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 49 treesize of output 25 [2024-12-02 08:51:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:01,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:51:01,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:01,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200809936] [2024-12-02 08:51:01,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200809936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:01,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:51:01,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:51:01,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430171351] [2024-12-02 08:51:01,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:01,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:51:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:01,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:51:01,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:51:01,138 INFO L87 Difference]: Start difference. First operand 1350 states and 1554 transitions. Second operand has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:09,261 INFO L93 Difference]: Finished difference Result 3086 states and 3573 transitions. [2024-12-02 08:51:09,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:51:09,263 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-12-02 08:51:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:09,267 INFO L225 Difference]: With dead ends: 3086 [2024-12-02 08:51:09,267 INFO L226 Difference]: Without dead ends: 1764 [2024-12-02 08:51:09,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:51:09,268 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 283 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:09,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1763 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-12-02 08:51:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-12-02 08:51:09,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1370. [2024-12-02 08:51:09,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1298 states have (on average 1.147919876733436) internal successors, (1490), 1300 states have internal predecessors, (1490), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:51:09,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1578 transitions. [2024-12-02 08:51:09,497 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1578 transitions. Word has length 163 [2024-12-02 08:51:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:09,498 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 1578 transitions. [2024-12-02 08:51:09,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1578 transitions. [2024-12-02 08:51:09,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:51:09,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:09,499 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:09,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:09,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:09,699 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:09,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1219189265, now seen corresponding path program 1 times [2024-12-02 08:51:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:09,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666445437] [2024-12-02 08:51:09,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:09,700 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 08:51:09,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:09,702 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:09,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:10,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:51:10,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:10,805 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 08:51:11,405 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 124 treesize of output 76 [2024-12-02 08:51:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:51:11,488 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:11,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:11,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666445437] [2024-12-02 08:51:11,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666445437] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:11,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:11,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 22 [2024-12-02 08:51:11,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891813568] [2024-12-02 08:51:11,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:11,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:51:11,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:11,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:51:11,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:51:11,997 INFO L87 Difference]: Start difference. First operand 1370 states and 1578 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:13,559 INFO L93 Difference]: Finished difference Result 2916 states and 3373 transitions. [2024-12-02 08:51:13,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:51:13,560 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-12-02 08:51:13,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:13,564 INFO L225 Difference]: With dead ends: 2916 [2024-12-02 08:51:13,564 INFO L226 Difference]: Without dead ends: 1574 [2024-12-02 08:51:13,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:51:13,565 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 205 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:13,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1269 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:51:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-12-02 08:51:13,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1330. [2024-12-02 08:51:13,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1258 states have (on average 1.1430842607313196) internal successors, (1438), 1260 states have internal predecessors, (1438), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:51:13,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1526 transitions. [2024-12-02 08:51:13,805 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1526 transitions. Word has length 163 [2024-12-02 08:51:13,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:13,805 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 1526 transitions. [2024-12-02 08:51:13,805 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1526 transitions. [2024-12-02 08:51:13,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:51:13,806 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:13,806 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:13,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 08:51:14,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:14,007 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:14,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:14,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1141960479, now seen corresponding path program 1 times [2024-12-02 08:51:14,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:14,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645884026] [2024-12-02 08:51:14,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:14,007 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 08:51:14,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:14,009 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:14,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:14,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:51:14,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:15,730 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 70 treesize of output 34 [2024-12-02 08:51:15,785 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 08:51:15,947 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 46 treesize of output 22 [2024-12-02 08:51:16,037 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 49 treesize of output 25 [2024-12-02 08:51:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:51:16,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:16,458 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 64 treesize of output 40 [2024-12-02 08:51:17,048 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:17,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645884026] [2024-12-02 08:51:17,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645884026] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:17,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [405419661] [2024-12-02 08:51:17,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:17,048 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:51:17,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:51:17,050 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:51:17,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (97)] Waiting until timeout for monitored process [2024-12-02 08:51:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:18,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 08:51:18,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:18,833 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 61 treesize of output 37 [2024-12-02 08:51:18,995 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 49 treesize of output 25 [2024-12-02 08:51:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:19,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:51:19,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [405419661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:19,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:19,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-12-02 08:51:19,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283113817] [2024-12-02 08:51:19,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:19,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:51:19,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:19,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:51:19,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:51:19,169 INFO L87 Difference]: Start difference. First operand 1330 states and 1526 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:20,711 INFO L93 Difference]: Finished difference Result 2859 states and 3295 transitions. [2024-12-02 08:51:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:51:20,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-12-02 08:51:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:20,716 INFO L225 Difference]: With dead ends: 2859 [2024-12-02 08:51:20,716 INFO L226 Difference]: Without dead ends: 1557 [2024-12-02 08:51:20,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:51:20,717 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 81 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:20,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 973 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:51:20,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-12-02 08:51:20,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1402. [2024-12-02 08:51:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1330 states have (on average 1.1398496240601503) internal successors, (1516), 1332 states have internal predecessors, (1516), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:51:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1604 transitions. [2024-12-02 08:51:20,945 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1604 transitions. Word has length 163 [2024-12-02 08:51:20,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:20,945 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 1604 transitions. [2024-12-02 08:51:20,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:20,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1604 transitions. [2024-12-02 08:51:20,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:51:20,946 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:20,946 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:20,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:21,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (97)] Forceful destruction successful, exit code 0 [2024-12-02 08:51:21,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:51:21,347 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:21,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash 440895901, now seen corresponding path program 1 times [2024-12-02 08:51:21,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:21,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867654903] [2024-12-02 08:51:21,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:21,347 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 08:51:21,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:21,349 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:21,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:21,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:51:21,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:23,044 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 69 treesize of output 33 [2024-12-02 08:51:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 303 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-12-02 08:51:23,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:23,313 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867654903] [2024-12-02 08:51:23,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867654903] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:23,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:23,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-12-02 08:51:23,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496217962] [2024-12-02 08:51:23,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:23,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:23,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:23,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:23,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:51:23,314 INFO L87 Difference]: Start difference. First operand 1402 states and 1604 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:24,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:24,003 INFO L93 Difference]: Finished difference Result 2927 states and 3353 transitions. [2024-12-02 08:51:24,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:51:24,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 163 [2024-12-02 08:51:24,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:24,007 INFO L225 Difference]: With dead ends: 2927 [2024-12-02 08:51:24,008 INFO L226 Difference]: Without dead ends: 1553 [2024-12-02 08:51:24,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:51:24,008 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 138 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:24,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 561 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:51:24,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-12-02 08:51:24,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1394. [2024-12-02 08:51:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1322 states have (on average 1.1225416036308624) internal successors, (1484), 1324 states have internal predecessors, (1484), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:51:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1572 transitions. [2024-12-02 08:51:24,241 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1572 transitions. Word has length 163 [2024-12-02 08:51:24,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:24,241 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1572 transitions. [2024-12-02 08:51:24,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:24,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1572 transitions. [2024-12-02 08:51:24,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 08:51:24,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:24,242 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:24,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:24,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:24,442 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:24,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:24,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1360676609, now seen corresponding path program 1 times [2024-12-02 08:51:24,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:24,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630690887] [2024-12-02 08:51:24,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:24,443 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 08:51:24,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:24,444 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:24,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:24,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:51:24,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 116 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 08:51:25,374 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:25,514 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:25,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630690887] [2024-12-02 08:51:25,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630690887] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:25,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:25,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2024-12-02 08:51:25,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186386097] [2024-12-02 08:51:25,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:25,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:25,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:25,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:25,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:51:25,515 INFO L87 Difference]: Start difference. First operand 1394 states and 1572 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:25,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:25,855 INFO L93 Difference]: Finished difference Result 3315 states and 3735 transitions. [2024-12-02 08:51:25,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:51:25,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 165 [2024-12-02 08:51:25,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:25,860 INFO L225 Difference]: With dead ends: 3315 [2024-12-02 08:51:25,860 INFO L226 Difference]: Without dead ends: 1949 [2024-12-02 08:51:25,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:51:25,861 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 47 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:25,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 764 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:51:25,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-12-02 08:51:26,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1917. [2024-12-02 08:51:26,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1845 states have (on average 1.121409214092141) internal successors, (2069), 1847 states have internal predecessors, (2069), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 08:51:26,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2157 transitions. [2024-12-02 08:51:26,089 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2157 transitions. Word has length 165 [2024-12-02 08:51:26,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:26,089 INFO L471 AbstractCegarLoop]: Abstraction has 1917 states and 2157 transitions. [2024-12-02 08:51:26,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:26,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2157 transitions. [2024-12-02 08:51:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 08:51:26,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:26,090 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:26,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:26,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:26,291 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:26,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:26,291 INFO L85 PathProgramCache]: Analyzing trace with hash 884902845, now seen corresponding path program 1 times [2024-12-02 08:51:26,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:26,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447274682] [2024-12-02 08:51:26,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:26,291 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 08:51:26,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:26,293 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:26,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:26,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:51:26,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 2 proven. 186 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-12-02 08:51:27,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:27,643 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:27,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447274682] [2024-12-02 08:51:27,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447274682] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:27,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:27,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2024-12-02 08:51:27,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947090374] [2024-12-02 08:51:27,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:27,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:27,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:27,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:27,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:51:27,644 INFO L87 Difference]: Start difference. First operand 1917 states and 2157 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:28,121 INFO L93 Difference]: Finished difference Result 3956 states and 4449 transitions. [2024-12-02 08:51:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:51:28,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 165 [2024-12-02 08:51:28,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:28,126 INFO L225 Difference]: With dead ends: 3956 [2024-12-02 08:51:28,126 INFO L226 Difference]: Without dead ends: 2067 [2024-12-02 08:51:28,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:51:28,128 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 105 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:28,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 890 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:51:28,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2024-12-02 08:51:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 2041. [2024-12-02 08:51:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 1937 states have (on average 1.1192565823438307) internal successors, (2168), 1942 states have internal predecessors, (2168), 64 states have call successors, (64), 39 states have call predecessors, (64), 39 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:51:28,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2296 transitions. [2024-12-02 08:51:28,516 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2296 transitions. Word has length 165 [2024-12-02 08:51:28,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:28,516 INFO L471 AbstractCegarLoop]: Abstraction has 2041 states and 2296 transitions. [2024-12-02 08:51:28,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2296 transitions. [2024-12-02 08:51:28,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 08:51:28,518 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:28,518 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:28,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:28,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:28,718 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:28,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:28,719 INFO L85 PathProgramCache]: Analyzing trace with hash 199174584, now seen corresponding path program 1 times [2024-12-02 08:51:28,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:28,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020797503] [2024-12-02 08:51:28,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:28,719 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 08:51:28,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:28,721 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:28,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:29,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:51:29,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:30,438 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 70 treesize of output 34 [2024-12-02 08:51:30,499 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 08:51:30,680 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 46 treesize of output 22 [2024-12-02 08:51:30,771 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 49 treesize of output 25 [2024-12-02 08:51:30,889 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:51:30,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:31,164 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 64 treesize of output 40 [2024-12-02 08:51:31,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:31,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020797503] [2024-12-02 08:51:31,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020797503] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:31,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [644274189] [2024-12-02 08:51:31,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:31,711 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:51:31,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:51:31,713 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:51:31,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (102)] Waiting until timeout for monitored process [2024-12-02 08:51:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:33,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:51:33,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:33,649 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 62 treesize of output 38 [2024-12-02 08:51:33,848 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 50 treesize of output 26 [2024-12-02 08:51:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:34,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:51:34,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [644274189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:34,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:34,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 19 [2024-12-02 08:51:34,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024706590] [2024-12-02 08:51:34,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:34,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:51:34,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:34,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:51:34,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:51:34,174 INFO L87 Difference]: Start difference. First operand 2041 states and 2296 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:37,039 INFO L93 Difference]: Finished difference Result 4276 states and 4814 transitions. [2024-12-02 08:51:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:51:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 165 [2024-12-02 08:51:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:37,044 INFO L225 Difference]: With dead ends: 4276 [2024-12-02 08:51:37,044 INFO L226 Difference]: Without dead ends: 2263 [2024-12-02 08:51:37,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:51:37,045 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 78 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:37,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1244 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 08:51:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2024-12-02 08:51:37,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2017. [2024-12-02 08:51:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1913 states have (on average 1.1144798745426032) internal successors, (2132), 1918 states have internal predecessors, (2132), 64 states have call successors, (64), 39 states have call predecessors, (64), 39 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:51:37,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2260 transitions. [2024-12-02 08:51:37,437 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2260 transitions. Word has length 165 [2024-12-02 08:51:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:37,438 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2260 transitions. [2024-12-02 08:51:37,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:37,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2260 transitions. [2024-12-02 08:51:37,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 08:51:37,439 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:37,439 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:37,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:37,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (102)] Ended with exit code 0 [2024-12-02 08:51:37,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:51:37,840 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:37,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2032658812, now seen corresponding path program 1 times [2024-12-02 08:51:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:37,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891242069] [2024-12-02 08:51:37,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:37,841 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 08:51:37,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:37,842 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:37,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:38,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:51:38,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:38,859 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 08:51:39,164 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 17 treesize of output 9 [2024-12-02 08:51:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 2 proven. 186 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-12-02 08:51:39,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:39,837 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 26 treesize of output 22 [2024-12-02 08:51:39,840 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:51:39,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:51:39,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2024-12-02 08:51:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:39,975 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:39,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891242069] [2024-12-02 08:51:39,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891242069] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:39,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:39,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 24 [2024-12-02 08:51:39,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994223985] [2024-12-02 08:51:39,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:39,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:51:39,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:39,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:51:39,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:51:39,977 INFO L87 Difference]: Start difference. First operand 2017 states and 2260 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:41,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:41,282 INFO L93 Difference]: Finished difference Result 3343 states and 3734 transitions. [2024-12-02 08:51:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:51:41,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-12-02 08:51:41,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:41,288 INFO L225 Difference]: With dead ends: 3343 [2024-12-02 08:51:41,288 INFO L226 Difference]: Without dead ends: 3341 [2024-12-02 08:51:41,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:51:41,288 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 104 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:41,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 2324 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:51:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3341 states. [2024-12-02 08:51:41,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3341 to 3049. [2024-12-02 08:51:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2945 states have (on average 1.1130730050933786) internal successors, (3278), 2950 states have internal predecessors, (3278), 64 states have call successors, (64), 39 states have call predecessors, (64), 39 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:51:41,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 3406 transitions. [2024-12-02 08:51:41,696 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 3406 transitions. Word has length 167 [2024-12-02 08:51:41,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:41,696 INFO L471 AbstractCegarLoop]: Abstraction has 3049 states and 3406 transitions. [2024-12-02 08:51:41,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:41,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 3406 transitions. [2024-12-02 08:51:41,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 08:51:41,698 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:41,698 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:41,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:41,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:41,899 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:41,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:41,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1223312186, now seen corresponding path program 1 times [2024-12-02 08:51:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:41,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006862288] [2024-12-02 08:51:41,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:41,899 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 08:51:41,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:41,901 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:41,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:42,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:51:42,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 2 proven. 186 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-12-02 08:51:43,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:43,173 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:43,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:43,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006862288] [2024-12-02 08:51:43,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006862288] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:43,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:43,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2024-12-02 08:51:43,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611158616] [2024-12-02 08:51:43,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:43,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:43,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:43,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:43,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:51:43,175 INFO L87 Difference]: Start difference. First operand 3049 states and 3406 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:43,830 INFO L93 Difference]: Finished difference Result 6208 states and 6932 transitions. [2024-12-02 08:51:43,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:51:43,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-12-02 08:51:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:43,835 INFO L225 Difference]: With dead ends: 6208 [2024-12-02 08:51:43,835 INFO L226 Difference]: Without dead ends: 3187 [2024-12-02 08:51:43,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:51:43,837 INFO L435 NwaCegarLoop]: 287 mSDtfsCounter, 99 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:43,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 866 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:51:43,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2024-12-02 08:51:44,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3049. [2024-12-02 08:51:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2945 states have (on average 1.1123938879456707) internal successors, (3276), 2950 states have internal predecessors, (3276), 64 states have call successors, (64), 39 states have call predecessors, (64), 39 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:51:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 3404 transitions. [2024-12-02 08:51:44,240 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 3404 transitions. Word has length 167 [2024-12-02 08:51:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:44,240 INFO L471 AbstractCegarLoop]: Abstraction has 3049 states and 3404 transitions. [2024-12-02 08:51:44,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 3404 transitions. [2024-12-02 08:51:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 08:51:44,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:44,244 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:44,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:44,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:44,444 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:44,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash -16729030, now seen corresponding path program 1 times [2024-12-02 08:51:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:44,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128169941] [2024-12-02 08:51:44,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:44,445 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 08:51:44,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:44,447 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:44,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:44,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:51:44,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 2 proven. 186 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-12-02 08:51:45,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:45,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:45,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128169941] [2024-12-02 08:51:45,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128169941] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:45,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:45,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2024-12-02 08:51:45,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817803619] [2024-12-02 08:51:45,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:45,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:51:45,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:45,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:51:45,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:51:45,691 INFO L87 Difference]: Start difference. First operand 3049 states and 3404 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:46,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:46,539 INFO L93 Difference]: Finished difference Result 6312 states and 7045 transitions. [2024-12-02 08:51:46,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:51:46,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-12-02 08:51:46,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:46,545 INFO L225 Difference]: With dead ends: 6312 [2024-12-02 08:51:46,545 INFO L226 Difference]: Without dead ends: 3291 [2024-12-02 08:51:46,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:51:46,547 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 179 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:46,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 593 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:51:46,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2024-12-02 08:51:46,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 3033. [2024-12-02 08:51:46,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2929 states have (on average 1.110959371799249) internal successors, (3254), 2934 states have internal predecessors, (3254), 64 states have call successors, (64), 39 states have call predecessors, (64), 39 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:51:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 3382 transitions. [2024-12-02 08:51:46,970 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 3382 transitions. Word has length 167 [2024-12-02 08:51:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:46,970 INFO L471 AbstractCegarLoop]: Abstraction has 3033 states and 3382 transitions. [2024-12-02 08:51:46,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 3382 transitions. [2024-12-02 08:51:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 08:51:46,972 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:46,973 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:46,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:51:47,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:47,173 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:47,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:47,173 INFO L85 PathProgramCache]: Analyzing trace with hash -826075656, now seen corresponding path program 1 times [2024-12-02 08:51:47,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:51:47,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394807797] [2024-12-02 08:51:47,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:47,174 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 08:51:47,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:51:47,175 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:47,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:47,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:51:47,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:48,396 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 08:51:48,678 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 17 treesize of output 9 [2024-12-02 08:51:48,713 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 42 treesize of output 26 [2024-12-02 08:51:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:51:48,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:51:49,422 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 22 [2024-12-02 08:51:49,426 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:51:49,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:51:49,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2024-12-02 08:51:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 08:51:49,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:51:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394807797] [2024-12-02 08:51:49,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394807797] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:49,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:49,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 29 [2024-12-02 08:51:49,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889425874] [2024-12-02 08:51:49,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:49,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:51:49,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:51:49,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:51:49,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=734, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:51:49,558 INFO L87 Difference]: Start difference. First operand 3033 states and 3382 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:50,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:50,763 INFO L93 Difference]: Finished difference Result 3197 states and 3563 transitions. [2024-12-02 08:51:50,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:51:50,764 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2024-12-02 08:51:50,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:50,767 INFO L225 Difference]: With dead ends: 3197 [2024-12-02 08:51:50,767 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:51:50,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:51:50,769 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 108 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:50,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 2030 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:51:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:51:50,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:51:50,769 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 08:51:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:51:50,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 167 [2024-12-02 08:51:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:50,772 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:51:50,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:51:50,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:51:50,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:51:50,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:51:50,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 08:51:50,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee9fd85-eabd-40b5-9181-99a10f0863b6/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:51:50,977 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] [2024-12-02 08:51:50,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.