./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:41:55,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:41:55,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:41:55,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:41:55,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:41:55,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:41:55,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:41:55,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:41:55,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:41:55,163 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:41:55,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:41:55,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:41:55,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:41:55,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:41:55,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:41:55,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:41:55,165 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:55,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:41:55,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:55,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:41:55,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:41:55,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:41:55,167 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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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 -> 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d [2024-12-02 13:41:55,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:41:55,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:41:55,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:41:55,421 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:41:55,421 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:41:55,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-12-02 13:41:58,061 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/748355f89/f2540d5575504dcd9541b3125bb2c9f0/FLAG2c9a6fb1d [2024-12-02 13:41:58,267 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:41:58,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-12-02 13:41:58,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/748355f89/f2540d5575504dcd9541b3125bb2c9f0/FLAG2c9a6fb1d [2024-12-02 13:41:58,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/748355f89/f2540d5575504dcd9541b3125bb2c9f0 [2024-12-02 13:41:58,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:41:58,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:41:58,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:41:58,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:41:58,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:41:58,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db255d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58, skipping insertion in model container [2024-12-02 13:41:58,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:41:58,442 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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-12-02 13:41:58,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:41:58,501 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:41:58,509 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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-12-02 13:41:58,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:41:58,561 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:41:58,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58 WrapperNode [2024-12-02 13:41:58,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:41:58,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:41:58,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:41:58,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:41:58,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,615 INFO L138 Inliner]: procedures = 30, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 423 [2024-12-02 13:41:58,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:41:58,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:41:58,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:41:58,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:41:58,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,637 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 13:41:58,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,654 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:41:58,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:41:58,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:41:58,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:41:58,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (1/1) ... [2024-12-02 13:41:58,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:58,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:58,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:41:58,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:41:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:41:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 13:41:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:41:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:41:58,810 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:41:58,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:41:59,363 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-12-02 13:41:59,364 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:41:59,374 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:41:59,375 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:41:59,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:59 BoogieIcfgContainer [2024-12-02 13:41:59,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:41:59,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:41:59,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:41:59,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:41:59,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:41:58" (1/3) ... [2024-12-02 13:41:59,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc4890d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:41:59, skipping insertion in model container [2024-12-02 13:41:59,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:58" (2/3) ... [2024-12-02 13:41:59,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc4890d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:41:59, skipping insertion in model container [2024-12-02 13:41:59,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:59" (3/3) ... [2024-12-02 13:41:59,383 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-84.i [2024-12-02 13:41:59,394 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:41:59,396 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-84.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:41:59,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:41:59,459 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;@58d2929, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:41:59,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:41:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:41:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 13:41:59,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:59,472 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:59,473 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:41:59,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash 924800917, now seen corresponding path program 1 times [2024-12-02 13:41:59,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:59,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965309810] [2024-12-02 13:41:59,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:59,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-12-02 13:41:59,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:59,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965309810] [2024-12-02 13:41:59,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965309810] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:59,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202688023] [2024-12-02 13:41:59,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:59,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:59,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:59,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:59,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:42:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:00,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:42:00,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:42:00,059 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-12-02 13:42:00,059 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:42:00,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202688023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:00,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:42:00,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:42:00,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573231356] [2024-12-02 13:42:00,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:00,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:42:00,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:00,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:42:00,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:42:00,085 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:00,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:00,111 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-12-02 13:42:00,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:42:00,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-12-02 13:42:00,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:00,119 INFO L225 Difference]: With dead ends: 199 [2024-12-02 13:42:00,119 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 13:42:00,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 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 13:42:00,124 INFO L435 NwaCegarLoop]: 141 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, 141 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 13:42:00,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:42:00,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 13:42:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-12-02 13:42:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:42:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-12-02 13:42:00,172 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-12-02 13:42:00,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:00,172 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-12-02 13:42:00,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:00,173 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-12-02 13:42:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 13:42:00,175 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:00,176 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:00,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:42:00,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:42:00,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:00,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:00,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1032707065, now seen corresponding path program 1 times [2024-12-02 13:42:00,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:00,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288567797] [2024-12-02 13:42:00,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:00,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:00,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:00,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288567797] [2024-12-02 13:42:00,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288567797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:00,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:00,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:42:00,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706708856] [2024-12-02 13:42:00,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:00,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:42:00,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:00,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:42:00,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:42:00,700 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:00,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:00,736 INFO L93 Difference]: Finished difference Result 198 states and 283 transitions. [2024-12-02 13:42:00,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:42:00,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-12-02 13:42:00,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:00,739 INFO L225 Difference]: With dead ends: 198 [2024-12-02 13:42:00,739 INFO L226 Difference]: Without dead ends: 102 [2024-12-02 13:42:00,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 13:42:00,740 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:00,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 405 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:42:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-12-02 13:42:00,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-12-02 13:42:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:42:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2024-12-02 13:42:00,751 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 150 [2024-12-02 13:42:00,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:00,753 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2024-12-02 13:42:00,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2024-12-02 13:42:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 13:42:00,755 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:00,756 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:00,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:42:00,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:00,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:00,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1034554107, now seen corresponding path program 1 times [2024-12-02 13:42:00,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:00,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379692223] [2024-12-02 13:42:00,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:00,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:01,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:01,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379692223] [2024-12-02 13:42:01,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379692223] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:01,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:01,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:42:01,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925389001] [2024-12-02 13:42:01,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:01,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:42:01,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:01,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:42:01,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:42:01,526 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:02,143 INFO L93 Difference]: Finished difference Result 324 states and 459 transitions. [2024-12-02 13:42:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:42:02,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-12-02 13:42:02,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:02,146 INFO L225 Difference]: With dead ends: 324 [2024-12-02 13:42:02,146 INFO L226 Difference]: Without dead ends: 226 [2024-12-02 13:42:02,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:42:02,148 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 194 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:02,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 321 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:42:02,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-12-02 13:42:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2024-12-02 13:42:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.294871794871795) internal successors, (202), 156 states have internal predecessors, (202), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:42:02,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 282 transitions. [2024-12-02 13:42:02,173 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 282 transitions. Word has length 150 [2024-12-02 13:42:02,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:02,173 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 282 transitions. [2024-12-02 13:42:02,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:02,174 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 282 transitions. [2024-12-02 13:42:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 13:42:02,176 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:02,176 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:02,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:42:02,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:02,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:02,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2120166937, now seen corresponding path program 1 times [2024-12-02 13:42:02,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:02,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956445834] [2024-12-02 13:42:02,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:05,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:05,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956445834] [2024-12-02 13:42:05,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956445834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:05,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:05,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 13:42:05,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883203996] [2024-12-02 13:42:05,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:05,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 13:42:05,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:05,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 13:42:05,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:42:05,431 INFO L87 Difference]: Start difference. First operand 199 states and 282 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:07,882 INFO L93 Difference]: Finished difference Result 625 states and 877 transitions. [2024-12-02 13:42:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:42:07,883 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-12-02 13:42:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:07,886 INFO L225 Difference]: With dead ends: 625 [2024-12-02 13:42:07,886 INFO L226 Difference]: Without dead ends: 429 [2024-12-02 13:42:07,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:42:07,888 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 167 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:07,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1577 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 13:42:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-12-02 13:42:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 229. [2024-12-02 13:42:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 186 states have (on average 1.3064516129032258) internal successors, (243), 186 states have internal predecessors, (243), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:42:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 323 transitions. [2024-12-02 13:42:07,914 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 323 transitions. Word has length 158 [2024-12-02 13:42:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:07,915 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 323 transitions. [2024-12-02 13:42:07,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 323 transitions. [2024-12-02 13:42:07,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 13:42:07,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:07,918 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:07,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:42:07,918 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:07,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:07,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1752098533, now seen corresponding path program 1 times [2024-12-02 13:42:07,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:07,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687315946] [2024-12-02 13:42:07,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:07,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:10,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:10,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687315946] [2024-12-02 13:42:10,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687315946] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:10,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:10,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 13:42:10,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680102760] [2024-12-02 13:42:10,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:10,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:42:10,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:10,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:42:10,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:42:10,366 INFO L87 Difference]: Start difference. First operand 229 states and 323 transitions. Second operand has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:11,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:11,342 INFO L93 Difference]: Finished difference Result 535 states and 753 transitions. [2024-12-02 13:42:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:42:11,342 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-12-02 13:42:11,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:11,344 INFO L225 Difference]: With dead ends: 535 [2024-12-02 13:42:11,344 INFO L226 Difference]: Without dead ends: 309 [2024-12-02 13:42:11,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:42:11,345 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 60 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:11,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 853 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:42:11,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-12-02 13:42:11,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 233. [2024-12-02 13:42:11,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 190 states have (on average 1.3105263157894738) internal successors, (249), 190 states have internal predecessors, (249), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:42:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 329 transitions. [2024-12-02 13:42:11,365 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 329 transitions. Word has length 158 [2024-12-02 13:42:11,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:11,365 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 329 transitions. [2024-12-02 13:42:11,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:11,365 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 329 transitions. [2024-12-02 13:42:11,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:11,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:11,367 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:11,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:42:11,368 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:11,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:11,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1171616002, now seen corresponding path program 1 times [2024-12-02 13:42:11,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:11,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936141796] [2024-12-02 13:42:11,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:11,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:13,008 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:13,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:13,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936141796] [2024-12-02 13:42:13,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936141796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:13,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:13,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 13:42:13,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382646912] [2024-12-02 13:42:13,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:13,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:42:13,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:13,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:42:13,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:42:13,010 INFO L87 Difference]: Start difference. First operand 233 states and 329 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:14,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:14,243 INFO L93 Difference]: Finished difference Result 577 states and 807 transitions. [2024-12-02 13:42:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:42:14,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:14,246 INFO L225 Difference]: With dead ends: 577 [2024-12-02 13:42:14,246 INFO L226 Difference]: Without dead ends: 347 [2024-12-02 13:42:14,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:42:14,248 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 55 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:14,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 793 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:42:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-12-02 13:42:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 343. [2024-12-02 13:42:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 294 states have (on average 1.3197278911564625) internal successors, (388), 296 states have internal predecessors, (388), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 13:42:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 476 transitions. [2024-12-02 13:42:14,270 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 476 transitions. Word has length 160 [2024-12-02 13:42:14,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:14,270 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 476 transitions. [2024-12-02 13:42:14,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 476 transitions. [2024-12-02 13:42:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:14,272 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:14,272 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:14,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:42:14,273 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:14,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash 269132564, now seen corresponding path program 1 times [2024-12-02 13:42:14,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:14,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339433728] [2024-12-02 13:42:14,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:15,965 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:15,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:15,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339433728] [2024-12-02 13:42:15,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339433728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:15,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:42:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071393821] [2024-12-02 13:42:15,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:15,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:42:15,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:15,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:42:15,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:42:15,967 INFO L87 Difference]: Start difference. First operand 343 states and 476 transitions. Second operand has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:17,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:17,027 INFO L93 Difference]: Finished difference Result 1095 states and 1498 transitions. [2024-12-02 13:42:17,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:42:17,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:17,033 INFO L225 Difference]: With dead ends: 1095 [2024-12-02 13:42:17,033 INFO L226 Difference]: Without dead ends: 755 [2024-12-02 13:42:17,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:42:17,035 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 114 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:17,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 901 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:42:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-12-02 13:42:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 589. [2024-12-02 13:42:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 524 states have (on average 1.3187022900763359) internal successors, (691), 530 states have internal predecessors, (691), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 13:42:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 803 transitions. [2024-12-02 13:42:17,097 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 803 transitions. Word has length 160 [2024-12-02 13:42:17,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:17,097 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 803 transitions. [2024-12-02 13:42:17,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 803 transitions. [2024-12-02 13:42:17,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:17,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:17,100 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:17,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:42:17,101 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:17,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:17,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1129206588, now seen corresponding path program 1 times [2024-12-02 13:42:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768375156] [2024-12-02 13:42:17,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:17,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:17,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:17,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768375156] [2024-12-02 13:42:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768375156] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:17,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:17,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:42:17,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899348694] [2024-12-02 13:42:17,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:17,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:42:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:17,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:42:17,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:42:17,519 INFO L87 Difference]: Start difference. First operand 589 states and 803 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:17,885 INFO L93 Difference]: Finished difference Result 1495 states and 2011 transitions. [2024-12-02 13:42:17,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:42:17,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:42:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:17,889 INFO L225 Difference]: With dead ends: 1495 [2024-12-02 13:42:17,889 INFO L226 Difference]: Without dead ends: 909 [2024-12-02 13:42:17,890 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 13:42:17,891 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 46 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:17,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 432 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:42:17,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-12-02 13:42:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 597. [2024-12-02 13:42:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 532 states have (on average 1.3139097744360901) internal successors, (699), 538 states have internal predecessors, (699), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 13:42:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 811 transitions. [2024-12-02 13:42:17,926 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 811 transitions. Word has length 160 [2024-12-02 13:42:17,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:17,927 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 811 transitions. [2024-12-02 13:42:17,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 811 transitions. [2024-12-02 13:42:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:17,929 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:17,930 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:17,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:42:17,930 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:17,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash -150657090, now seen corresponding path program 1 times [2024-12-02 13:42:17,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:17,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192567842] [2024-12-02 13:42:17,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:17,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:19,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:19,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192567842] [2024-12-02 13:42:19,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192567842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:19,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:19,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:42:19,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180372738] [2024-12-02 13:42:19,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:19,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:42:19,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:19,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:42:19,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:42:19,262 INFO L87 Difference]: Start difference. First operand 597 states and 811 transitions. Second operand has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:20,087 INFO L93 Difference]: Finished difference Result 1537 states and 2071 transitions. [2024-12-02 13:42:20,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:42:20,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:20,092 INFO L225 Difference]: With dead ends: 1537 [2024-12-02 13:42:20,093 INFO L226 Difference]: Without dead ends: 943 [2024-12-02 13:42:20,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:42:20,095 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 53 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:20,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 570 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:42:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-12-02 13:42:20,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 655. [2024-12-02 13:42:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 590 states have (on average 1.3135593220338984) internal successors, (775), 596 states have internal predecessors, (775), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 13:42:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 887 transitions. [2024-12-02 13:42:20,148 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 887 transitions. Word has length 160 [2024-12-02 13:42:20,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:20,149 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 887 transitions. [2024-12-02 13:42:20,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 887 transitions. [2024-12-02 13:42:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:20,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:20,151 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:20,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:42:20,151 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:20,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:20,152 INFO L85 PathProgramCache]: Analyzing trace with hash 409681174, now seen corresponding path program 1 times [2024-12-02 13:42:20,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:20,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387689882] [2024-12-02 13:42:20,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:20,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:20,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387689882] [2024-12-02 13:42:20,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387689882] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:20,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:20,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:42:20,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827118421] [2024-12-02 13:42:20,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:20,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:42:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:20,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:42:20,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:42:20,938 INFO L87 Difference]: Start difference. First operand 655 states and 887 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:21,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:21,354 INFO L93 Difference]: Finished difference Result 1344 states and 1816 transitions. [2024-12-02 13:42:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:42:21,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-12-02 13:42:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:21,356 INFO L225 Difference]: With dead ends: 1344 [2024-12-02 13:42:21,356 INFO L226 Difference]: Without dead ends: 692 [2024-12-02 13:42:21,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 13:42:21,358 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 104 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:21,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 534 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:42:21,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-12-02 13:42:21,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 688. [2024-12-02 13:42:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 608 states have (on average 1.2976973684210527) internal successors, (789), 615 states have internal predecessors, (789), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 13:42:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 925 transitions. [2024-12-02 13:42:21,408 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 925 transitions. Word has length 160 [2024-12-02 13:42:21,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:21,408 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 925 transitions. [2024-12-02 13:42:21,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:21,408 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 925 transitions. [2024-12-02 13:42:21,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:21,410 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:21,410 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:21,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:42:21,410 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:21,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1545951006, now seen corresponding path program 1 times [2024-12-02 13:42:21,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:21,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643343844] [2024-12-02 13:42:21,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:21,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:22,708 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:22,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:22,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643343844] [2024-12-02 13:42:22,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643343844] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:22,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:22,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 13:42:22,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456407865] [2024-12-02 13:42:22,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:22,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:42:22,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:22,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:42:22,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:42:22,710 INFO L87 Difference]: Start difference. First operand 688 states and 925 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:24,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:24,003 INFO L93 Difference]: Finished difference Result 1506 states and 2014 transitions. [2024-12-02 13:42:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:42:24,004 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:24,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:24,007 INFO L225 Difference]: With dead ends: 1506 [2024-12-02 13:42:24,007 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 13:42:24,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:42:24,008 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 53 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:24,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 947 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:42:24,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 13:42:24,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 688. [2024-12-02 13:42:24,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 608 states have (on average 1.2911184210526316) internal successors, (785), 615 states have internal predecessors, (785), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 13:42:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 921 transitions. [2024-12-02 13:42:24,041 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 921 transitions. Word has length 160 [2024-12-02 13:42:24,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:24,041 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 921 transitions. [2024-12-02 13:42:24,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:24,042 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 921 transitions. [2024-12-02 13:42:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:24,043 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:24,043 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:24,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:42:24,043 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:24,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:24,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1148983748, now seen corresponding path program 1 times [2024-12-02 13:42:24,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:24,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431808608] [2024-12-02 13:42:24,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:24,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:25,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:25,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431808608] [2024-12-02 13:42:25,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431808608] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:25,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:25,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 13:42:25,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969899819] [2024-12-02 13:42:25,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:25,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:42:25,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:25,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:42:25,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:42:25,290 INFO L87 Difference]: Start difference. First operand 688 states and 921 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:26,631 INFO L93 Difference]: Finished difference Result 1662 states and 2204 transitions. [2024-12-02 13:42:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:42:26,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:26,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:26,636 INFO L225 Difference]: With dead ends: 1662 [2024-12-02 13:42:26,636 INFO L226 Difference]: Without dead ends: 990 [2024-12-02 13:42:26,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:42:26,638 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 61 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:26,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1002 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:42:26,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-12-02 13:42:26,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 836. [2024-12-02 13:42:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 740 states have (on average 1.2743243243243243) internal successors, (943), 751 states have internal predecessors, (943), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:42:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1103 transitions. [2024-12-02 13:42:26,702 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1103 transitions. Word has length 160 [2024-12-02 13:42:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:26,702 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1103 transitions. [2024-12-02 13:42:26,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1103 transitions. [2024-12-02 13:42:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:26,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:26,704 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:26,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:42:26,705 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:26,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash -128024836, now seen corresponding path program 1 times [2024-12-02 13:42:26,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:26,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606263395] [2024-12-02 13:42:26,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:26,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606263395] [2024-12-02 13:42:27,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606263395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:27,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:27,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 13:42:27,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937472217] [2024-12-02 13:42:27,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:27,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:42:27,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:27,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:42:27,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:42:27,890 INFO L87 Difference]: Start difference. First operand 836 states and 1103 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:29,296 INFO L93 Difference]: Finished difference Result 1782 states and 2346 transitions. [2024-12-02 13:42:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:42:29,297 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:29,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:29,299 INFO L225 Difference]: With dead ends: 1782 [2024-12-02 13:42:29,299 INFO L226 Difference]: Without dead ends: 962 [2024-12-02 13:42:29,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:42:29,301 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 55 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:29,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1124 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:42:29,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-12-02 13:42:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 818. [2024-12-02 13:42:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 722 states have (on average 1.2700831024930748) internal successors, (917), 733 states have internal predecessors, (917), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:42:29,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1077 transitions. [2024-12-02 13:42:29,350 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1077 transitions. Word has length 160 [2024-12-02 13:42:29,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:29,350 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1077 transitions. [2024-12-02 13:42:29,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:29,350 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1077 transitions. [2024-12-02 13:42:29,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:29,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:29,352 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:29,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:42:29,352 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:29,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:29,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1568583260, now seen corresponding path program 1 times [2024-12-02 13:42:29,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:29,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822393804] [2024-12-02 13:42:29,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:29,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:29,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822393804] [2024-12-02 13:42:29,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822393804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:29,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:29,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:42:29,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94733551] [2024-12-02 13:42:29,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:29,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:42:29,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:29,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:42:29,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:42:29,749 INFO L87 Difference]: Start difference. First operand 818 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:30,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:30,100 INFO L93 Difference]: Finished difference Result 1620 states and 2135 transitions. [2024-12-02 13:42:30,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:42:30,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:42:30,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:30,104 INFO L225 Difference]: With dead ends: 1620 [2024-12-02 13:42:30,104 INFO L226 Difference]: Without dead ends: 818 [2024-12-02 13:42:30,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 13:42:30,106 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:30,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 428 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:42:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-12-02 13:42:30,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2024-12-02 13:42:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 722 states have (on average 1.2673130193905817) internal successors, (915), 733 states have internal predecessors, (915), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 13:42:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1075 transitions. [2024-12-02 13:42:30,167 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1075 transitions. Word has length 160 [2024-12-02 13:42:30,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:30,168 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1075 transitions. [2024-12-02 13:42:30,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:30,168 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1075 transitions. [2024-12-02 13:42:30,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:30,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:30,170 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:30,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:42:30,170 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:30,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash -803156002, now seen corresponding path program 1 times [2024-12-02 13:42:30,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:30,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330088799] [2024-12-02 13:42:30,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:31,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:31,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330088799] [2024-12-02 13:42:31,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330088799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:31,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:31,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:42:31,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230248565] [2024-12-02 13:42:31,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:31,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:42:31,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:31,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:42:31,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:42:31,551 INFO L87 Difference]: Start difference. First operand 818 states and 1075 transitions. Second operand has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:32,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:32,391 INFO L93 Difference]: Finished difference Result 1813 states and 2377 transitions. [2024-12-02 13:42:32,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:42:32,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:32,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:32,394 INFO L225 Difference]: With dead ends: 1813 [2024-12-02 13:42:32,394 INFO L226 Difference]: Without dead ends: 1011 [2024-12-02 13:42:32,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:42:32,396 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 53 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:32,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 693 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:42:32,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-12-02 13:42:32,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 793. [2024-12-02 13:42:32,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 699 states have (on average 1.2660944206008584) internal successors, (885), 709 states have internal predecessors, (885), 78 states have call successors, (78), 15 states have call predecessors, (78), 15 states have return successors, (78), 68 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 13:42:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1041 transitions. [2024-12-02 13:42:32,461 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1041 transitions. Word has length 160 [2024-12-02 13:42:32,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:32,461 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1041 transitions. [2024-12-02 13:42:32,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:32,461 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1041 transitions. [2024-12-02 13:42:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:42:32,463 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:32,463 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:32,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:42:32,463 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:32,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:32,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1824224356, now seen corresponding path program 1 times [2024-12-02 13:42:32,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:32,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941826429] [2024-12-02 13:42:32,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:32,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:33,659 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:33,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:33,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941826429] [2024-12-02 13:42:33,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941826429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:33,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:33,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 13:42:33,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698942923] [2024-12-02 13:42:33,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:33,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:42:33,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:33,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:42:33,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:42:33,661 INFO L87 Difference]: Start difference. First operand 793 states and 1041 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:34,929 INFO L93 Difference]: Finished difference Result 1758 states and 2293 transitions. [2024-12-02 13:42:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:42:34,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 13:42:34,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:34,932 INFO L225 Difference]: With dead ends: 1758 [2024-12-02 13:42:34,932 INFO L226 Difference]: Without dead ends: 981 [2024-12-02 13:42:34,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:42:34,933 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 57 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:34,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 881 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:42:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-12-02 13:42:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 958. [2024-12-02 13:42:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 845 states have (on average 1.2579881656804734) internal successors, (1063), 858 states have internal predecessors, (1063), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 13:42:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1243 transitions. [2024-12-02 13:42:34,984 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1243 transitions. Word has length 160 [2024-12-02 13:42:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:34,984 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1243 transitions. [2024-12-02 13:42:34,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1243 transitions. [2024-12-02 13:42:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:42:34,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:34,986 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:34,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:42:34,986 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:34,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1092955930, now seen corresponding path program 1 times [2024-12-02 13:42:34,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:34,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809304802] [2024-12-02 13:42:34,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-12-02 13:42:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809304802] [2024-12-02 13:42:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809304802] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:42:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757272497] [2024-12-02 13:42:35,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:35,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:42:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:42:35,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:42:35,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:42:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:35,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:42:35,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:42:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:35,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:42:35,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757272497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:35,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:42:35,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 13:42:35,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781456879] [2024-12-02 13:42:35,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:35,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:42:35,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:35,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:42:35,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:42:35,434 INFO L87 Difference]: Start difference. First operand 958 states and 1243 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:35,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:35,530 INFO L93 Difference]: Finished difference Result 1958 states and 2543 transitions. [2024-12-02 13:42:35,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:42:35,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-12-02 13:42:35,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:35,534 INFO L225 Difference]: With dead ends: 1958 [2024-12-02 13:42:35,534 INFO L226 Difference]: Without dead ends: 1003 [2024-12-02 13:42:35,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:42:35,536 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 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 13:42:35,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:42:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-12-02 13:42:35,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2024-12-02 13:42:35,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 890 states have (on average 1.2449438202247192) internal successors, (1108), 903 states have internal predecessors, (1108), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 13:42:35,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1288 transitions. [2024-12-02 13:42:35,619 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1288 transitions. Word has length 162 [2024-12-02 13:42:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:35,619 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1288 transitions. [2024-12-02 13:42:35,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1288 transitions. [2024-12-02 13:42:35,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:42:35,621 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:35,621 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:35,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:42:35,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 13:42:35,822 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:35,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1057655491, now seen corresponding path program 1 times [2024-12-02 13:42:35,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:35,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324799526] [2024-12-02 13:42:35,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:37,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:37,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324799526] [2024-12-02 13:42:37,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324799526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:37,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:37,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 13:42:37,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977537910] [2024-12-02 13:42:37,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:37,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 13:42:37,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:37,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 13:42:37,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:42:37,922 INFO L87 Difference]: Start difference. First operand 1003 states and 1288 transitions. Second operand has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:39,755 INFO L93 Difference]: Finished difference Result 2185 states and 2804 transitions. [2024-12-02 13:42:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:42:39,755 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-12-02 13:42:39,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:39,758 INFO L225 Difference]: With dead ends: 2185 [2024-12-02 13:42:39,758 INFO L226 Difference]: Without dead ends: 1185 [2024-12-02 13:42:39,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:42:39,759 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 52 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:39,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1626 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 13:42:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-12-02 13:42:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1063. [2024-12-02 13:42:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 950 states have (on average 1.2463157894736843) internal successors, (1184), 963 states have internal predecessors, (1184), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 13:42:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1364 transitions. [2024-12-02 13:42:39,874 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1364 transitions. Word has length 162 [2024-12-02 13:42:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:39,874 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1364 transitions. [2024-12-02 13:42:39,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:39,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1364 transitions. [2024-12-02 13:42:39,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:42:39,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:39,877 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:39,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:42:39,877 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:39,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:39,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1851108411, now seen corresponding path program 1 times [2024-12-02 13:42:39,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:39,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852721304] [2024-12-02 13:42:39,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:39,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:40,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:40,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852721304] [2024-12-02 13:42:40,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852721304] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:40,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:40,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:42:40,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133730083] [2024-12-02 13:42:40,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:40,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:42:40,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:40,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:42:40,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:42:40,750 INFO L87 Difference]: Start difference. First operand 1063 states and 1364 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:41,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:41,224 INFO L93 Difference]: Finished difference Result 2055 states and 2637 transitions. [2024-12-02 13:42:41,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:42:41,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-12-02 13:42:41,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:41,227 INFO L225 Difference]: With dead ends: 2055 [2024-12-02 13:42:41,227 INFO L226 Difference]: Without dead ends: 995 [2024-12-02 13:42:41,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 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 13:42:41,228 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:41,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:42:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-12-02 13:42:41,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 995. [2024-12-02 13:42:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 882 states have (on average 1.2403628117913832) internal successors, (1094), 895 states have internal predecessors, (1094), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 13:42:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1274 transitions. [2024-12-02 13:42:41,276 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1274 transitions. Word has length 162 [2024-12-02 13:42:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:41,276 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1274 transitions. [2024-12-02 13:42:41,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1274 transitions. [2024-12-02 13:42:41,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:42:41,277 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:41,277 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:41,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:42:41,277 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:41,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash -555389885, now seen corresponding path program 1 times [2024-12-02 13:42:41,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:41,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600912800] [2024-12-02 13:42:41,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:41,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:43,157 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:43,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:43,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600912800] [2024-12-02 13:42:43,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600912800] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:43,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:43,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 13:42:43,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996159230] [2024-12-02 13:42:43,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:43,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:42:43,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:43,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:42:43,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:42:43,159 INFO L87 Difference]: Start difference. First operand 995 states and 1274 transitions. Second operand has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:45,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:45,131 INFO L93 Difference]: Finished difference Result 2307 states and 2942 transitions. [2024-12-02 13:42:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 13:42:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-12-02 13:42:45,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:45,137 INFO L225 Difference]: With dead ends: 2307 [2024-12-02 13:42:45,137 INFO L226 Difference]: Without dead ends: 1315 [2024-12-02 13:42:45,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:42:45,138 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 164 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:45,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1954 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 13:42:45,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-12-02 13:42:45,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1043. [2024-12-02 13:42:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 930 states have (on average 1.2344086021505376) internal successors, (1148), 943 states have internal predecessors, (1148), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 13:42:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1328 transitions. [2024-12-02 13:42:45,201 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1328 transitions. Word has length 162 [2024-12-02 13:42:45,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:45,202 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1328 transitions. [2024-12-02 13:42:45,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:45,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1328 transitions. [2024-12-02 13:42:45,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:42:45,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:45,204 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:45,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:42:45,204 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:45,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:45,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1934139077, now seen corresponding path program 1 times [2024-12-02 13:42:45,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:45,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483927917] [2024-12-02 13:42:45,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:45,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:49,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:49,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483927917] [2024-12-02 13:42:49,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483927917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:49,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:49,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 13:42:49,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618897919] [2024-12-02 13:42:49,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:49,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 13:42:49,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:49,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 13:42:49,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:42:49,316 INFO L87 Difference]: Start difference. First operand 1043 states and 1328 transitions. Second operand has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:51,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:51,140 INFO L93 Difference]: Finished difference Result 2087 states and 2656 transitions. [2024-12-02 13:42:51,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:42:51,141 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-12-02 13:42:51,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:51,145 INFO L225 Difference]: With dead ends: 2087 [2024-12-02 13:42:51,145 INFO L226 Difference]: Without dead ends: 1047 [2024-12-02 13:42:51,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:42:51,147 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 51 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:51,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1467 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 13:42:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-12-02 13:42:51,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 995. [2024-12-02 13:42:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 882 states have (on average 1.2358276643990929) internal successors, (1090), 895 states have internal predecessors, (1090), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 13:42:51,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1270 transitions. [2024-12-02 13:42:51,205 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1270 transitions. Word has length 162 [2024-12-02 13:42:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:51,205 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1270 transitions. [2024-12-02 13:42:51,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:42:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1270 transitions. [2024-12-02 13:42:51,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:42:51,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:51,207 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:51,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:42:51,207 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:51,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:51,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1940567467, now seen corresponding path program 1 times [2024-12-02 13:42:51,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:51,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269852797] [2024-12-02 13:42:51,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:51,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:42:51,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:42:51,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269852797] [2024-12-02 13:42:51,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269852797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:51,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:51,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:42:51,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411216738] [2024-12-02 13:42:51,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:51,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:42:51,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:42:51,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:42:51,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:42:51,530 INFO L87 Difference]: Start difference. First operand 995 states and 1270 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:52,090 INFO L93 Difference]: Finished difference Result 2778 states and 3517 transitions. [2024-12-02 13:42:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:42:52,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-12-02 13:42:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:52,095 INFO L225 Difference]: With dead ends: 2778 [2024-12-02 13:42:52,095 INFO L226 Difference]: Without dead ends: 1786 [2024-12-02 13:42:52,096 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 13:42:52,098 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 102 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:42:52,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 290 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:42:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-12-02 13:42:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1266. [2024-12-02 13:42:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1153 states have (on average 1.2168256721595836) internal successors, (1403), 1166 states have internal predecessors, (1403), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 13:42:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1583 transitions. [2024-12-02 13:42:52,159 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1583 transitions. Word has length 164 [2024-12-02 13:42:52,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:52,160 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1583 transitions. [2024-12-02 13:42:52,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:42:52,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1583 transitions. [2024-12-02 13:42:52,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:42:52,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:52,161 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:52,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:42:52,161 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:52,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:52,161 INFO L85 PathProgramCache]: Analyzing trace with hash 362288575, now seen corresponding path program 1 times [2024-12-02 13:42:52,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:42:52,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535155776] [2024-12-02 13:42:52,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:52,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:42:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:42:52,319 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:42:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:42:52,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:42:52,506 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:42:52,506 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:42:52,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:42:52,511 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] [2024-12-02 13:42:52,566 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:42:52,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:42:52 BoogieIcfgContainer [2024-12-02 13:42:52,569 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:42:52,570 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:42:52,570 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:42:52,570 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:42:52,571 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:59" (3/4) ... [2024-12-02 13:42:52,573 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:42:52,574 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:42:52,575 INFO L158 Benchmark]: Toolchain (without parser) took 54280.76ms. Allocated memory was 142.6MB in the beginning and 746.6MB in the end (delta: 604.0MB). Free memory was 116.1MB in the beginning and 596.6MB in the end (delta: -480.5MB). Peak memory consumption was 123.6MB. Max. memory is 16.1GB. [2024-12-02 13:42:52,575 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:42:52,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.50ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 99.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:42:52,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.01ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 94.9MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:42:52,576 INFO L158 Benchmark]: Boogie Preprocessor took 52.96ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 91.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:42:52,576 INFO L158 Benchmark]: RCFGBuilder took 705.16ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 59.0MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 13:42:52,576 INFO L158 Benchmark]: TraceAbstraction took 53192.46ms. Allocated memory was 142.6MB in the beginning and 746.6MB in the end (delta: 604.0MB). Free memory was 58.4MB in the beginning and 596.7MB in the end (delta: -538.3MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. [2024-12-02 13:42:52,576 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 746.6MB. Free memory was 596.7MB in the beginning and 596.6MB in the end (delta: 66.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:42:52,578 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.50ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 99.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.01ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 94.9MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.96ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 91.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 705.16ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 59.0MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 53192.46ms. Allocated memory was 142.6MB in the beginning and 746.6MB in the end (delta: 604.0MB). Free memory was 58.4MB in the beginning and 596.7MB in the end (delta: -538.3MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 746.6MB. Free memory was 596.7MB in the beginning and 596.6MB in the end (delta: 66.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryFLOATComparisonOperation at line 120. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 128, 25, 64, 8, 0, 64, 1, 27843, -4, 128, 5, 28020, 128, 10000000000000.926, 1000000.6 }; [L57] unsigned short int last_1_WrapperStruct00_var_1_8 = 64; [L58] signed short int last_1_WrapperStruct00_var_1_11 = -4; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L124] isInitial = 1 [L125] FCALL initially() [L127] CALL updateLastVariables() [L116] EXPR WrapperStruct00.var_1_8 [L116] last_1_WrapperStruct00_var_1_8 = WrapperStruct00.var_1_8 [L117] EXPR WrapperStruct00.var_1_11 [L117] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L127] RET updateLastVariables() [L128] CALL updateVariables() [L84] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L85] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L87] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L88] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L90] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L91] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L93] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L94] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L96] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L99] WrapperStruct00.var_1_10 = __VERIFIER_nondet_ushort() [L100] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L102] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L103] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L105] WrapperStruct00.var_1_14 = __VERIFIER_nondet_uchar() [L106] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_14 != 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_14 != 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L109] WrapperStruct00.var_1_15 = __VERIFIER_nondet_short() [L110] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L112] WrapperStruct00.var_1_18 = __VERIFIER_nondet_float() [L113] EXPR WrapperStruct00.var_1_18 [L113] EXPR WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F [L113] EXPR WrapperStruct00.var_1_18 [L113] EXPR WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] EXPR (WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] CALL assume_abort_if_not((WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] RET assume_abort_if_not((WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L128] RET updateVariables() [L129] CALL step() [L62] signed long int stepLocal_0 = last_1_WrapperStruct00_var_1_11; VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64, stepLocal_0=-4] [L63] COND TRUE stepLocal_0 != last_1_WrapperStruct00_var_1_8 [L64] EXPR WrapperStruct00.var_1_4 [L64] EXPR WrapperStruct00.var_1_5 [L64] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) [L64] EXPR WrapperStruct00.var_1_5 [L64] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) [L64] EXPR WrapperStruct00.var_1_7 [L64] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))) [L68] WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L68] COND TRUE WrapperStruct00.var_1_9 [L69] EXPR WrapperStruct00.var_1_10 [L69] EXPR WrapperStruct00.var_1_6 [L69] WrapperStruct00.var_1_8 = ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)) [L71] EXPR WrapperStruct00.var_1_5 [L71] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L71] COND TRUE ! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10) [L72] WrapperStruct00.var_1_16 = (32 - 8) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L76] EXPR WrapperStruct00.var_1_18 [L76] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_18 [L77] EXPR WrapperStruct00.var_1_1 [L77] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L77] COND FALSE !(WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR (last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4)) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR WrapperStruct00.var_1_4 [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) [L120] EXPR WrapperStruct00.var_1_7 [L120] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1) [L120] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1 [L120] EXPR WrapperStruct00.var_1_8 [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_6 [L120] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)))) [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))) [L120] EXPR WrapperStruct00.var_1_16 [L120] EXPR (! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) [L120] EXPR WrapperStruct00.var_1_17 [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120-L121] return (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.1s, OverallIterations: 23, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1470 SdHoareTripleChecker+Valid, 18.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1442 mSDsluCounter, 17967 SdHoareTripleChecker+Invalid, 17.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14897 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12215 IncrementalHoareTripleChecker+Invalid, 12391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 3070 mSDtfsCounter, 12215 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 808 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=22, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 2729 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 27.1s InterpolantComputationTime, 3976 NumberOfCodeBlocks, 3976 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3788 ConstructedInterpolants, 0 QuantifiedInterpolants, 11813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1098 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 18145/18240 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 13:42:52,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:42:54,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:42:54,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:42:54,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:42:54,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:42:54,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:42:54,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:42:54,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:42:54,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:42:54,680 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:42:54,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:42:54,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:42:54,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:42:54,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:42:54,680 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:42:54,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:42:54,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:42:54,681 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:42:54,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:42:54,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:42:54,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:42:54,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:42:54,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:42:54,681 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:42:54,682 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:42:54,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:42:54,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:42:54,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:42:54,683 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:42:54,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:42:54,684 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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/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 -> 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d [2024-12-02 13:42:54,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:42:54,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:42:54,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:42:54,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:42:54,928 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:42:54,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-12-02 13:42:57,741 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/652e73845/fc34878228c44ee9b2023c7fce3b1b05/FLAG0caf4be6c [2024-12-02 13:42:57,960 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:42:57,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-12-02 13:42:57,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/652e73845/fc34878228c44ee9b2023c7fce3b1b05/FLAG0caf4be6c [2024-12-02 13:42:57,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/data/652e73845/fc34878228c44ee9b2023c7fce3b1b05 [2024-12-02 13:42:57,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:42:57,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:42:57,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:42:57,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:42:57,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:42:57,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:42:57" (1/1) ... [2024-12-02 13:42:57,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aec0034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:57, skipping insertion in model container [2024-12-02 13:42:57,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:42:57" (1/1) ... [2024-12-02 13:42:58,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:42:58,147 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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-12-02 13:42:58,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:42:58,217 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:42:58,230 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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-12-02 13:42:58,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:42:58,299 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:42:58,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58 WrapperNode [2024-12-02 13:42:58,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:42:58,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:42:58,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:42:58,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:42:58,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,358 INFO L138 Inliner]: procedures = 34, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 421 [2024-12-02 13:42:58,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:42:58,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:42:58,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:42:58,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:42:58,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,391 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-12-02 13:42:58,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,412 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:42:58,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:42:58,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:42:58,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:42:58,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (1/1) ... [2024-12-02 13:42:58,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:42:58,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:42:58,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:42:58,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:42:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:42:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 13:42:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 13:42:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:42:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 13:42:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 13:42:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:42:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:42:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 13:42:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 13:42:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:42:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:42:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 13:42:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 13:42:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 13:42:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 13:42:58,621 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:42:58,623 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:42:59,179 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-12-02 13:42:59,179 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:42:59,190 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:42:59,190 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:42:59,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:42:59 BoogieIcfgContainer [2024-12-02 13:42:59,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:42:59,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:42:59,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:42:59,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:42:59,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:42:57" (1/3) ... [2024-12-02 13:42:59,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20158a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:42:59, skipping insertion in model container [2024-12-02 13:42:59,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:42:58" (2/3) ... [2024-12-02 13:42:59,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20158a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:42:59, skipping insertion in model container [2024-12-02 13:42:59,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:42:59" (3/3) ... [2024-12-02 13:42:59,200 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-84.i [2024-12-02 13:42:59,214 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:42:59,216 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-84.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:42:59,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:42:59,272 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;@450b45b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:42:59,272 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:42:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:42:59,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 13:42:59,293 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:59,293 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:59,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:42:59,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:42:59,298 INFO L85 PathProgramCache]: Analyzing trace with hash 557809999, now seen corresponding path program 1 times [2024-12-02 13:42:59,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:42:59,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778951107] [2024-12-02 13:42:59,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:42:59,307 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 13:42:59,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:42:59,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:42:59,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:42:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:42:59,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:42:59,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:42:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-12-02 13:42:59,728 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:42:59,729 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:42:59,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778951107] [2024-12-02 13:42:59,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778951107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:42:59,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:42:59,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:42:59,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171353679] [2024-12-02 13:42:59,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:42:59,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:42:59,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:42:59,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:42:59,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:42:59,760 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:59,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:42:59,792 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-12-02 13:42:59,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:42:59,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-12-02 13:42:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:42:59,802 INFO L225 Difference]: With dead ends: 199 [2024-12-02 13:42:59,802 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 13:42:59,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 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 13:42:59,809 INFO L435 NwaCegarLoop]: 141 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, 141 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 13:42:59,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:42:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 13:42:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-12-02 13:42:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:42:59,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-12-02 13:42:59,855 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-12-02 13:42:59,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:42:59,855 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-12-02 13:42:59,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:42:59,856 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-12-02 13:42:59,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 13:42:59,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:42:59,860 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:59,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:00,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:00,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:00,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash 665716147, now seen corresponding path program 1 times [2024-12-02 13:43:00,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:00,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77887862] [2024-12-02 13:43:00,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:00,063 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 13:43:00,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:00,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:00,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:00,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:43:00,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:00,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:00,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:00,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77887862] [2024-12-02 13:43:00,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77887862] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:00,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:00,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:43:00,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240195714] [2024-12-02 13:43:00,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:00,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:43:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:00,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:43:00,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:43:00,455 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:00,548 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-12-02 13:43:00,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:43:00,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-12-02 13:43:00,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:00,552 INFO L225 Difference]: With dead ends: 202 [2024-12-02 13:43:00,552 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 13:43:00,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 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 13:43:00,554 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:00,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 653 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:43:00,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 13:43:00,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-12-02 13:43:00,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 83 states have internal predecessors, (107), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 13:43:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2024-12-02 13:43:00,567 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 150 [2024-12-02 13:43:00,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:00,569 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2024-12-02 13:43:00,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:00,570 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2024-12-02 13:43:00,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 13:43:00,572 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:00,572 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:00,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:00,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:00,773 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:00,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:00,774 INFO L85 PathProgramCache]: Analyzing trace with hash 667563189, now seen corresponding path program 1 times [2024-12-02 13:43:00,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:00,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450092972] [2024-12-02 13:43:00,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:00,774 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 13:43:00,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:00,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:00,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:01,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:43:01,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:01,208 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 85 treesize of output 84 [2024-12-02 13:43:01,499 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 153 treesize of output 129 [2024-12-02 13:43:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:01,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:01,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:01,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450092972] [2024-12-02 13:43:01,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450092972] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:01,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:01,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:43:01,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973758570] [2024-12-02 13:43:01,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:01,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:01,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:01,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:01,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:43:01,939 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:03,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:03,640 INFO L93 Difference]: Finished difference Result 314 states and 439 transitions. [2024-12-02 13:43:03,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:03,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-12-02 13:43:03,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:03,644 INFO L225 Difference]: With dead ends: 314 [2024-12-02 13:43:03,644 INFO L226 Difference]: Without dead ends: 212 [2024-12-02 13:43:03,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:43:03,646 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 75 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:03,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 477 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 13:43:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-12-02 13:43:03,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 177. [2024-12-02 13:43:03,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 133 states have (on average 1.255639097744361) internal successors, (167), 133 states have internal predecessors, (167), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:43:03,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 247 transitions. [2024-12-02 13:43:03,675 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 247 transitions. Word has length 150 [2024-12-02 13:43:03,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:03,675 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 247 transitions. [2024-12-02 13:43:03,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:03,676 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 247 transitions. [2024-12-02 13:43:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 13:43:03,678 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:03,678 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:03,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:03,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:03,879 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:03,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -329940525, now seen corresponding path program 1 times [2024-12-02 13:43:03,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:03,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491758622] [2024-12-02 13:43:03,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:03,880 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 13:43:03,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:03,882 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:03,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:04,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 13:43:04,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:04,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:43:04,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 13:43:04,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:04,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 13:43:04,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:04,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 13:43:05,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:05,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-02 13:43:05,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:05,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-12-02 13:43:05,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:05,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-12-02 13:43:06,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:06,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 89 [2024-12-02 13:43:06,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:06,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 102 [2024-12-02 13:43:07,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:07,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 100 treesize of output 105 [2024-12-02 13:43:08,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:08,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 112 treesize of output 120 [2024-12-02 13:43:08,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:08,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 140 treesize of output 145 [2024-12-02 13:43:08,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:08,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 150 [2024-12-02 13:43:08,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:08,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 150 [2024-12-02 13:43:09,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:09,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 155 treesize of output 75 [2024-12-02 13:43:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-02 13:43:09,796 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:09,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:09,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491758622] [2024-12-02 13:43:09,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491758622] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:09,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:09,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 13:43:09,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401131374] [2024-12-02 13:43:09,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:09,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:43:09,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:09,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:43:09,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:43:09,798 INFO L87 Difference]: Start difference. First operand 177 states and 247 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-12-02 13:43:14,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:14,874 INFO L93 Difference]: Finished difference Result 388 states and 539 transitions. [2024-12-02 13:43:14,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:43:14,875 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 158 [2024-12-02 13:43:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:14,878 INFO L225 Difference]: With dead ends: 388 [2024-12-02 13:43:14,878 INFO L226 Difference]: Without dead ends: 286 [2024-12-02 13:43:14,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:43:14,880 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 404 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:14,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 521 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 13:43:14,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-12-02 13:43:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 203. [2024-12-02 13:43:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 159 states have internal predecessors, (204), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:43:14,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 284 transitions. [2024-12-02 13:43:14,922 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 284 transitions. Word has length 158 [2024-12-02 13:43:14,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:14,923 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 284 transitions. [2024-12-02 13:43:14,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-12-02 13:43:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2024-12-02 13:43:14,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 13:43:14,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:14,925 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:14,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 13:43:15,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:15,126 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:15,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:15,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2135378859, now seen corresponding path program 1 times [2024-12-02 13:43:15,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:15,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572728537] [2024-12-02 13:43:15,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:15,128 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 13:43:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:15,129 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:15,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:15,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 13:43:15,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:15,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:43:15,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:43:15,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 13:43:15,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:15,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:43:15,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:15,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 13:43:15,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:15,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 13:43:16,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:16,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-02 13:43:16,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:16,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-12-02 13:43:16,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:16,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-12-02 13:43:17,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:17,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-12-02 13:43:17,615 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:17,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 112 [2024-12-02 13:43:17,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:17,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 107 treesize of output 115 [2024-12-02 13:43:17,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:17,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 107 treesize of output 115 [2024-12-02 13:43:18,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:18,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 117 treesize of output 49 [2024-12-02 13:43:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-12-02 13:43:18,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:18,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:18,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572728537] [2024-12-02 13:43:18,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572728537] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:18,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:18,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 13:43:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129742899] [2024-12-02 13:43:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:18,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 13:43:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:18,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 13:43:18,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:43:18,395 INFO L87 Difference]: Start difference. First operand 203 states and 284 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-12-02 13:43:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:21,533 INFO L93 Difference]: Finished difference Result 374 states and 523 transitions. [2024-12-02 13:43:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:43:21,534 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 158 [2024-12-02 13:43:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:21,536 INFO L225 Difference]: With dead ends: 374 [2024-12-02 13:43:21,536 INFO L226 Difference]: Without dead ends: 256 [2024-12-02 13:43:21,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:43:21,538 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 353 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:21,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 504 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 13:43:21,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-12-02 13:43:21,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 203. [2024-12-02 13:43:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 159 states have internal predecessors, (204), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 13:43:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 284 transitions. [2024-12-02 13:43:21,580 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 284 transitions. Word has length 158 [2024-12-02 13:43:21,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:21,580 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 284 transitions. [2024-12-02 13:43:21,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-12-02 13:43:21,580 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2024-12-02 13:43:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:21,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:21,582 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:21,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:21,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:21,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:21,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:21,783 INFO L85 PathProgramCache]: Analyzing trace with hash 634758488, now seen corresponding path program 1 times [2024-12-02 13:43:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064011933] [2024-12-02 13:43:21,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:21,784 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 13:43:21,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:21,786 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:21,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:22,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 13:43:22,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:22,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:43:22,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 13:43:22,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 13:43:22,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:22,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-12-02 13:43:22,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:22,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 13:43:22,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:22,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 13:43:22,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:22,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 13:43:23,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:23,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-12-02 13:43:23,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:23,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-12-02 13:43:23,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:23,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-12-02 13:43:24,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:24,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 111 [2024-12-02 13:43:24,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:24,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 115 treesize of output 114 [2024-12-02 13:43:24,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:24,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 115 treesize of output 114 [2024-12-02 13:43:24,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:24,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 117 treesize of output 53 [2024-12-02 13:43:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 529 proven. 81 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 13:43:24,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:24,998 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:24,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:24,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064011933] [2024-12-02 13:43:24,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064011933] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:24,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:24,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-12-02 13:43:24,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168090098] [2024-12-02 13:43:24,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:24,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:43:24,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:24,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:43:25,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:43:25,000 INFO L87 Difference]: Start difference. First operand 203 states and 284 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:25,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:25,864 INFO L93 Difference]: Finished difference Result 395 states and 551 transitions. [2024-12-02 13:43:25,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:43:25,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:25,866 INFO L225 Difference]: With dead ends: 395 [2024-12-02 13:43:25,866 INFO L226 Difference]: Without dead ends: 277 [2024-12-02 13:43:25,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:43:25,867 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 165 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:25,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 521 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:43:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-12-02 13:43:25,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 274. [2024-12-02 13:43:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 227 states have (on average 1.3083700440528634) internal successors, (297), 228 states have internal predecessors, (297), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 13:43:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2024-12-02 13:43:25,906 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 160 [2024-12-02 13:43:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:25,907 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2024-12-02 13:43:25,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2024-12-02 13:43:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:25,909 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:25,909 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:25,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:26,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:26,109 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:26,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:26,110 INFO L85 PathProgramCache]: Analyzing trace with hash -386309866, now seen corresponding path program 1 times [2024-12-02 13:43:26,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:26,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488301191] [2024-12-02 13:43:26,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:26,110 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 13:43:26,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:26,112 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:26,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:26,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-02 13:43:26,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:26,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:43:26,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 13:43:26,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:26,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-12-02 13:43:27,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:27,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 50 [2024-12-02 13:43:27,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:27,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 60 [2024-12-02 13:43:28,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:28,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-02 13:43:28,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:28,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-12-02 13:43:29,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:29,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-12-02 13:43:29,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:29,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-12-02 13:43:30,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:30,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 105 [2024-12-02 13:43:30,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:30,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 143 treesize of output 130 [2024-12-02 13:43:31,333 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:31,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 133 [2024-12-02 13:43:31,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:31,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 133 [2024-12-02 13:43:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 576 proven. 117 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-12-02 13:43:32,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:32,997 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:32,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488301191] [2024-12-02 13:43:32,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488301191] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:32,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:32,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [27] total 34 [2024-12-02 13:43:32,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296571597] [2024-12-02 13:43:32,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:32,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:43:32,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:32,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:43:32,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=886, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 13:43:32,999 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:34,415 INFO L93 Difference]: Finished difference Result 558 states and 770 transitions. [2024-12-02 13:43:34,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:43:34,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:34,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:34,419 INFO L225 Difference]: With dead ends: 558 [2024-12-02 13:43:34,419 INFO L226 Difference]: Without dead ends: 383 [2024-12-02 13:43:34,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 284 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 13:43:34,420 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 262 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:34,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 746 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 13:43:34,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-12-02 13:43:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 284. [2024-12-02 13:43:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 237 states have (on average 1.3206751054852321) internal successors, (313), 238 states have internal predecessors, (313), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 13:43:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 397 transitions. [2024-12-02 13:43:34,455 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 397 transitions. Word has length 160 [2024-12-02 13:43:34,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:34,455 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 397 transitions. [2024-12-02 13:43:34,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 397 transitions. [2024-12-02 13:43:34,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:34,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:34,456 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:34,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 13:43:34,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:34,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:34,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:34,657 INFO L85 PathProgramCache]: Analyzing trace with hash -383894516, now seen corresponding path program 1 times [2024-12-02 13:43:34,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:34,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188280744] [2024-12-02 13:43:34,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:34,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:34,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:34,659 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:34,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:34,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:43:34,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:34,895 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:34,895 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:34,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188280744] [2024-12-02 13:43:34,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188280744] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:34,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:34,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:43:34,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694397099] [2024-12-02 13:43:34,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:34,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:34,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:34,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:34,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:43:34,896 INFO L87 Difference]: Start difference. First operand 284 states and 397 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:34,953 INFO L93 Difference]: Finished difference Result 475 states and 665 transitions. [2024-12-02 13:43:34,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:34,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:34,955 INFO L225 Difference]: With dead ends: 475 [2024-12-02 13:43:34,955 INFO L226 Difference]: Without dead ends: 290 [2024-12-02 13:43:34,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 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 13:43:34,956 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 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 13:43:34,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:43:34,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-12-02 13:43:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-12-02 13:43:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 243 states have (on average 1.3127572016460904) internal successors, (319), 244 states have internal predecessors, (319), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 13:43:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 403 transitions. [2024-12-02 13:43:34,993 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 403 transitions. Word has length 160 [2024-12-02 13:43:34,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:34,993 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 403 transitions. [2024-12-02 13:43:34,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:34,994 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 403 transitions. [2024-12-02 13:43:34,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:34,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:34,995 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:35,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:35,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:35,196 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:35,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:35,196 INFO L85 PathProgramCache]: Analyzing trace with hash -642059954, now seen corresponding path program 1 times [2024-12-02 13:43:35,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:35,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644213762] [2024-12-02 13:43:35,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:35,197 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 13:43:35,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:35,198 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:35,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:35,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 13:43:35,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:35,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:43:35,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 13:43:35,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 13:43:35,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 13:43:36,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:36,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 47 [2024-12-02 13:43:36,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:36,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 60 [2024-12-02 13:43:37,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:37,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 63 [2024-12-02 13:43:37,361 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:37,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 63 [2024-12-02 13:43:37,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:37,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 81 [2024-12-02 13:43:38,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:38,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 89 [2024-12-02 13:43:38,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:38,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 100 treesize of output 93 [2024-12-02 13:43:38,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:38,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 100 treesize of output 93 [2024-12-02 13:43:39,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:39,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 161 treesize of output 85 [2024-12-02 13:43:39,301 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 563 proven. 84 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-12-02 13:43:39,301 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:39,871 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:39,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:39,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644213762] [2024-12-02 13:43:39,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644213762] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:39,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:39,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 30 [2024-12-02 13:43:39,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560945918] [2024-12-02 13:43:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:39,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:43:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:39,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:43:39,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:43:39,872 INFO L87 Difference]: Start difference. First operand 290 states and 403 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:41,128 INFO L93 Difference]: Finished difference Result 634 states and 877 transitions. [2024-12-02 13:43:41,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:43:41,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:41,131 INFO L225 Difference]: With dead ends: 634 [2024-12-02 13:43:41,131 INFO L226 Difference]: Without dead ends: 443 [2024-12-02 13:43:41,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 13:43:41,132 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:41,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 642 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:43:41,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-12-02 13:43:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 434. [2024-12-02 13:43:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 379 states have (on average 1.3324538258575198) internal successors, (505), 382 states have internal predecessors, (505), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 13:43:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 601 transitions. [2024-12-02 13:43:41,176 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 601 transitions. Word has length 160 [2024-12-02 13:43:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:41,176 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 601 transitions. [2024-12-02 13:43:41,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 601 transitions. [2024-12-02 13:43:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:41,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:41,177 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:41,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:41,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:41,378 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:41,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash -2082808520, now seen corresponding path program 1 times [2024-12-02 13:43:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:41,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445197641] [2024-12-02 13:43:41,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:41,379 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 13:43:41,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:41,380 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:41,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:41,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 13:43:41,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:41,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:43:41,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 13:43:41,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 13:43:42,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:42,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-12-02 13:43:42,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:42,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-12-02 13:43:42,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:42,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:42,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:42,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:42,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:42,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:43,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:43,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:43,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:43,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 61 [2024-12-02 13:43:43,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:43,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 85 treesize of output 90 [2024-12-02 13:43:43,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:43,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 95 treesize of output 94 [2024-12-02 13:43:43,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:43,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 95 treesize of output 94 [2024-12-02 13:43:44,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:44,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 51 [2024-12-02 13:43:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 475 proven. 81 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 13:43:44,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:44,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:44,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445197641] [2024-12-02 13:43:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445197641] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:44,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-12-02 13:43:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285095635] [2024-12-02 13:43:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:44,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:43:44,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:44,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:43:44,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:43:44,431 INFO L87 Difference]: Start difference. First operand 434 states and 601 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:45,182 INFO L93 Difference]: Finished difference Result 881 states and 1210 transitions. [2024-12-02 13:43:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:43:45,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:45,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:45,186 INFO L225 Difference]: With dead ends: 881 [2024-12-02 13:43:45,186 INFO L226 Difference]: Without dead ends: 567 [2024-12-02 13:43:45,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:43:45,187 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 156 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:45,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 471 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:43:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-12-02 13:43:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 484. [2024-12-02 13:43:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 429 states have (on average 1.3403263403263403) internal successors, (575), 432 states have internal predecessors, (575), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 13:43:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 671 transitions. [2024-12-02 13:43:45,235 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 671 transitions. Word has length 160 [2024-12-02 13:43:45,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:45,235 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 671 transitions. [2024-12-02 13:43:45,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 671 transitions. [2024-12-02 13:43:45,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:45,237 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:45,237 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:45,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 13:43:45,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:45,438 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:45,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash 218014070, now seen corresponding path program 1 times [2024-12-02 13:43:45,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:45,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806398638] [2024-12-02 13:43:45,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:45,438 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 13:43:45,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:45,440 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:45,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 13:43:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:45,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:43:45,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:45,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:45,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 13:43:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:45,799 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:45,799 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:45,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806398638] [2024-12-02 13:43:45,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806398638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:45,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:45,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:43:45,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494844502] [2024-12-02 13:43:45,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:45,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:45,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:45,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:45,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:43:45,800 INFO L87 Difference]: Start difference. First operand 484 states and 671 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:46,366 INFO L93 Difference]: Finished difference Result 1017 states and 1382 transitions. [2024-12-02 13:43:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:46,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:46,369 INFO L225 Difference]: With dead ends: 1017 [2024-12-02 13:43:46,369 INFO L226 Difference]: Without dead ends: 670 [2024-12-02 13:43:46,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:43:46,369 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 46 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:46,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 443 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:43:46,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-12-02 13:43:46,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 494. [2024-12-02 13:43:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 439 states have (on average 1.3371298405466971) internal successors, (587), 442 states have internal predecessors, (587), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 13:43:46,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 683 transitions. [2024-12-02 13:43:46,440 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 683 transitions. Word has length 160 [2024-12-02 13:43:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:46,440 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 683 transitions. [2024-12-02 13:43:46,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 683 transitions. [2024-12-02 13:43:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:46,442 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:46,442 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:46,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 13:43:46,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:46,642 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:46,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:46,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1061849608, now seen corresponding path program 1 times [2024-12-02 13:43:46,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:46,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090536804] [2024-12-02 13:43:46,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:46,643 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 13:43:46,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:46,645 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:46,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:46,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 13:43:46,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:46,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:43:47,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 13:43:47,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:47,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-12-02 13:43:47,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:47,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 13:43:47,427 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:47,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 13:43:47,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:47,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 65 [2024-12-02 13:43:47,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:47,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 68 [2024-12-02 13:43:48,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:48,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 78 [2024-12-02 13:43:48,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:48,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 81 [2024-12-02 13:43:48,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:48,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 95 [2024-12-02 13:43:49,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:49,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 120 treesize of output 119 [2024-12-02 13:43:49,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:49,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 123 [2024-12-02 13:43:49,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:49,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 123 [2024-12-02 13:43:49,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:49,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 131 treesize of output 61 [2024-12-02 13:43:49,528 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 577 proven. 87 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 13:43:49,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:49,731 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:49,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090536804] [2024-12-02 13:43:49,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090536804] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:49,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:49,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-12-02 13:43:49,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149940575] [2024-12-02 13:43:49,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:49,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:49,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:49,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:49,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:43:49,733 INFO L87 Difference]: Start difference. First operand 494 states and 683 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:50,156 INFO L93 Difference]: Finished difference Result 940 states and 1284 transitions. [2024-12-02 13:43:50,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:50,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:50,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:50,158 INFO L225 Difference]: With dead ends: 940 [2024-12-02 13:43:50,158 INFO L226 Difference]: Without dead ends: 583 [2024-12-02 13:43:50,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:43:50,159 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 108 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:50,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 316 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:43:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-12-02 13:43:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 494. [2024-12-02 13:43:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 439 states have (on average 1.328018223234624) internal successors, (583), 442 states have internal predecessors, (583), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 13:43:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 679 transitions. [2024-12-02 13:43:50,213 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 679 transitions. Word has length 160 [2024-12-02 13:43:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:50,214 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 679 transitions. [2024-12-02 13:43:50,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:50,214 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 679 transitions. [2024-12-02 13:43:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:50,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:50,215 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:50,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:50,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:50,415 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:50,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:50,416 INFO L85 PathProgramCache]: Analyzing trace with hash -501511344, now seen corresponding path program 1 times [2024-12-02 13:43:50,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:50,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465620997] [2024-12-02 13:43:50,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:50,416 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 13:43:50,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:50,417 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:50,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:50,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 13:43:50,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:50,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:43:50,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 13:43:50,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 13:43:50,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 13:43:50,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:50,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 13:43:51,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:51,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-12-02 13:43:51,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:51,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 53 [2024-12-02 13:43:51,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:51,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-12-02 13:43:51,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:51,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-12-02 13:43:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 529 proven. 30 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-12-02 13:43:51,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:51,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:51,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465620997] [2024-12-02 13:43:51,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465620997] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:51,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:51,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-12-02 13:43:51,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541590901] [2024-12-02 13:43:51,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:51,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:51,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:51,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:51,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:43:51,796 INFO L87 Difference]: Start difference. First operand 494 states and 679 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:52,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:52,209 INFO L93 Difference]: Finished difference Result 860 states and 1176 transitions. [2024-12-02 13:43:52,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:52,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:52,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:52,211 INFO L225 Difference]: With dead ends: 860 [2024-12-02 13:43:52,211 INFO L226 Difference]: Without dead ends: 503 [2024-12-02 13:43:52,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:43:52,212 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 104 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:52,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 434 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:43:52,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-12-02 13:43:52,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 500. [2024-12-02 13:43:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 440 states have (on average 1.3181818181818181) internal successors, (580), 443 states have internal predecessors, (580), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 13:43:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 684 transitions. [2024-12-02 13:43:52,268 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 684 transitions. Word has length 160 [2024-12-02 13:43:52,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:52,268 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 684 transitions. [2024-12-02 13:43:52,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:52,268 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 684 transitions. [2024-12-02 13:43:52,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:52,269 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:52,269 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:52,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:52,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:52,470 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:52,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash 657390742, now seen corresponding path program 1 times [2024-12-02 13:43:52,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:52,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004032493] [2024-12-02 13:43:52,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:52,471 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 13:43:52,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:52,472 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:52,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:52,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:43:52,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:52,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:52,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 13:43:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:52,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:52,767 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:52,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004032493] [2024-12-02 13:43:52,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004032493] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:52,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:52,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:43:52,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181070003] [2024-12-02 13:43:52,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:52,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:52,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:52,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:52,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:43:52,769 INFO L87 Difference]: Start difference. First operand 500 states and 684 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:53,532 INFO L93 Difference]: Finished difference Result 1045 states and 1403 transitions. [2024-12-02 13:43:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:53,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:53,535 INFO L225 Difference]: With dead ends: 1045 [2024-12-02 13:43:53,535 INFO L226 Difference]: Without dead ends: 664 [2024-12-02 13:43:53,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:43:53,536 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 63 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:53,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 451 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:43:53,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-12-02 13:43:53,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 494. [2024-12-02 13:43:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 434 states have (on average 1.3179723502304148) internal successors, (572), 437 states have internal predecessors, (572), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 13:43:53,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 676 transitions. [2024-12-02 13:43:53,577 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 676 transitions. Word has length 160 [2024-12-02 13:43:53,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:53,577 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 676 transitions. [2024-12-02 13:43:53,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:53,577 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 676 transitions. [2024-12-02 13:43:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:53,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:53,578 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:53,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:53,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:53,779 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:53,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:53,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1714348520, now seen corresponding path program 1 times [2024-12-02 13:43:53,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:53,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481469912] [2024-12-02 13:43:53,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:53,780 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 13:43:53,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:53,782 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:53,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:54,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 13:43:54,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:54,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:43:54,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 13:43:54,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:54,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-12-02 13:43:54,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:54,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:54,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:54,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:54,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:54,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:55,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:55,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:43:55,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:55,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-12-02 13:43:55,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:55,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-12-02 13:43:56,033 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:56,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 74 [2024-12-02 13:43:56,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:56,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 111 treesize of output 107 [2024-12-02 13:43:56,343 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:56,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 126 treesize of output 110 [2024-12-02 13:43:56,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:56,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 126 treesize of output 110 [2024-12-02 13:43:56,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:56,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 57 [2024-12-02 13:43:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 425 proven. 87 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-12-02 13:43:56,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:43:56,911 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:43:56,911 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:43:56,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481469912] [2024-12-02 13:43:56,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481469912] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:56,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:56,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 21 [2024-12-02 13:43:56,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577122938] [2024-12-02 13:43:56,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:56,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:56,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:43:56,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:56,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:43:56,913 INFO L87 Difference]: Start difference. First operand 494 states and 676 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:57,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:57,386 INFO L93 Difference]: Finished difference Result 929 states and 1252 transitions. [2024-12-02 13:43:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:57,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:43:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:57,390 INFO L225 Difference]: With dead ends: 929 [2024-12-02 13:43:57,390 INFO L226 Difference]: Without dead ends: 572 [2024-12-02 13:43:57,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 295 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:43:57,391 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 54 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:57,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 442 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:43:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-12-02 13:43:57,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 486. [2024-12-02 13:43:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 426 states have (on average 1.3051643192488263) internal successors, (556), 429 states have internal predecessors, (556), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 13:43:57,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 660 transitions. [2024-12-02 13:43:57,460 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 660 transitions. Word has length 160 [2024-12-02 13:43:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:57,460 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 660 transitions. [2024-12-02 13:43:57,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:43:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 660 transitions. [2024-12-02 13:43:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 13:43:57,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:57,462 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:57,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-02 13:43:57,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:43:57,662 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:57,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:57,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1039217354, now seen corresponding path program 1 times [2024-12-02 13:43:57,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:43:57,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839155873] [2024-12-02 13:43:57,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:57,663 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 13:43:57,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:43:57,664 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:43:57,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 13:43:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:57,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 13:43:58,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:58,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:43:58,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 13:43:58,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:58,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-12-02 13:43:58,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:58,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-12-02 13:43:58,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:58,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-12-02 13:43:58,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:58,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-12-02 13:43:59,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:59,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-12-02 13:43:59,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:59,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-12-02 13:43:59,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:59,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-12-02 13:43:59,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:59,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 93 [2024-12-02 13:43:59,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:59,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 98 [2024-12-02 13:43:59,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:43:59,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 98 [2024-12-02 13:44:00,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:00,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 55 [2024-12-02 13:44:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 551 proven. 75 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-12-02 13:44:00,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:44:00,569 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:00,569 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:00,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839155873] [2024-12-02 13:44:00,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839155873] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:00,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:44:00,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 25 [2024-12-02 13:44:00,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421704967] [2024-12-02 13:44:00,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:00,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:44:00,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:00,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:44:00,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-12-02 13:44:00,570 INFO L87 Difference]: Start difference. First operand 486 states and 660 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:01,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:01,311 INFO L93 Difference]: Finished difference Result 931 states and 1244 transitions. [2024-12-02 13:44:01,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:44:01,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-12-02 13:44:01,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:01,314 INFO L225 Difference]: With dead ends: 931 [2024-12-02 13:44:01,314 INFO L226 Difference]: Without dead ends: 582 [2024-12-02 13:44:01,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:44:01,315 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 142 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:01,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 603 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:44:01,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-12-02 13:44:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2024-12-02 13:44:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 506 states have (on average 1.2826086956521738) internal successors, (649), 511 states have internal predecessors, (649), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:01,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 769 transitions. [2024-12-02 13:44:01,410 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 769 transitions. Word has length 160 [2024-12-02 13:44:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:01,411 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 769 transitions. [2024-12-02 13:44:01,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:01,411 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 769 transitions. [2024-12-02 13:44:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:44:01,412 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:01,412 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:01,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 13:44:01,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:01,612 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:01,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:01,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1574974333, now seen corresponding path program 1 times [2024-12-02 13:44:01,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:01,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704846259] [2024-12-02 13:44:01,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:01,613 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 13:44:01,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:01,615 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:01,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:01,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 13:44:01,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:01,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:44:01,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:44:01,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:44:02,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:02,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:02,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:02,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:02,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:02,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 13:44:02,315 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:02,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:02,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:02,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 60 [2024-12-02 13:44:02,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:02,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 93 [2024-12-02 13:44:02,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:02,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 96 [2024-12-02 13:44:02,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:02,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 96 [2024-12-02 13:44:02,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:02,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 110 treesize of output 48 [2024-12-02 13:44:03,102 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-12-02 13:44:03,102 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:03,102 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:03,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704846259] [2024-12-02 13:44:03,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704846259] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:03,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:03,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 13:44:03,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627774795] [2024-12-02 13:44:03,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:03,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:44:03,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:03,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:44:03,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:44:03,103 INFO L87 Difference]: Start difference. First operand 578 states and 769 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:44:06,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:06,812 INFO L93 Difference]: Finished difference Result 1131 states and 1492 transitions. [2024-12-02 13:44:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:44:06,813 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-12-02 13:44:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:06,816 INFO L225 Difference]: With dead ends: 1131 [2024-12-02 13:44:06,816 INFO L226 Difference]: Without dead ends: 690 [2024-12-02 13:44:06,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:44:06,817 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 260 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:06,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 682 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 13:44:06,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-12-02 13:44:06,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 605. [2024-12-02 13:44:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 533 states have (on average 1.2870544090056286) internal successors, (686), 538 states have internal predecessors, (686), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 806 transitions. [2024-12-02 13:44:06,924 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 806 transitions. Word has length 162 [2024-12-02 13:44:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:06,924 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 806 transitions. [2024-12-02 13:44:06,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:44:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 806 transitions. [2024-12-02 13:44:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:44:06,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:06,925 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:06,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:07,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:07,126 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:07,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 295110655, now seen corresponding path program 1 times [2024-12-02 13:44:07,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:07,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900215776] [2024-12-02 13:44:07,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:07,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:07,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:07,128 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:07,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:07,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:44:07,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:07,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:07,393 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 16 [2024-12-02 13:44:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:07,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:07,421 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:07,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900215776] [2024-12-02 13:44:07,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900215776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:07,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:07,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:44:07,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465224903] [2024-12-02 13:44:07,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:07,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:44:07,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:07,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:44:07,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:44:07,422 INFO L87 Difference]: Start difference. First operand 605 states and 806 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:07,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:07,998 INFO L93 Difference]: Finished difference Result 1210 states and 1588 transitions. [2024-12-02 13:44:07,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:44:07,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-12-02 13:44:07,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:08,001 INFO L225 Difference]: With dead ends: 1210 [2024-12-02 13:44:08,001 INFO L226 Difference]: Without dead ends: 753 [2024-12-02 13:44:08,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:44:08,001 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 44 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:08,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 422 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:44:08,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-12-02 13:44:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 599. [2024-12-02 13:44:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 527 states have (on average 1.2808349146110056) internal successors, (675), 532 states have internal predecessors, (675), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 795 transitions. [2024-12-02 13:44:08,098 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 795 transitions. Word has length 162 [2024-12-02 13:44:08,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:08,098 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 795 transitions. [2024-12-02 13:44:08,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 795 transitions. [2024-12-02 13:44:08,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:44:08,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:08,102 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:08,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:08,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:08,303 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:08,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:08,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1715522943, now seen corresponding path program 1 times [2024-12-02 13:44:08,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:08,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861442354] [2024-12-02 13:44:08,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:08,304 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 13:44:08,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:08,306 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:08,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:08,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 13:44:08,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:08,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:44:08,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 13:44:08,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:08,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:08,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:08,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 13:44:08,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:08,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 13:44:09,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:09,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-12-02 13:44:09,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:09,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-02 13:44:09,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:09,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-12-02 13:44:09,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:09,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-12-02 13:44:09,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:09,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-12-02 13:44:10,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:10,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 94 [2024-12-02 13:44:10,747 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:10,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 99 [2024-12-02 13:44:10,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:10,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 99 [2024-12-02 13:44:11,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:11,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 107 treesize of output 51 [2024-12-02 13:44:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 13:44:11,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:11,287 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:11,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861442354] [2024-12-02 13:44:11,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861442354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:11,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:11,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 13:44:11,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244603409] [2024-12-02 13:44:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:11,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:44:11,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:11,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:44:11,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:44:11,288 INFO L87 Difference]: Start difference. First operand 599 states and 795 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-12-02 13:44:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:14,916 INFO L93 Difference]: Finished difference Result 1133 states and 1490 transitions. [2024-12-02 13:44:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:44:14,917 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 162 [2024-12-02 13:44:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:14,918 INFO L225 Difference]: With dead ends: 1133 [2024-12-02 13:44:14,918 INFO L226 Difference]: Without dead ends: 682 [2024-12-02 13:44:14,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:44:14,919 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 212 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:14,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 717 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 13:44:14,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-12-02 13:44:14,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 618. [2024-12-02 13:44:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 546 states have (on average 1.283882783882784) internal successors, (701), 551 states have internal predecessors, (701), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 821 transitions. [2024-12-02 13:44:14,986 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 821 transitions. Word has length 162 [2024-12-02 13:44:14,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:14,986 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 821 transitions. [2024-12-02 13:44:14,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-12-02 13:44:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 821 transitions. [2024-12-02 13:44:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:44:14,988 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:14,988 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:14,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:15,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:15,188 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:15,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:15,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1333789569, now seen corresponding path program 1 times [2024-12-02 13:44:15,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:15,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521534195] [2024-12-02 13:44:15,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:15,189 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 13:44:15,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:15,191 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:15,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:15,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:44:15,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:15,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:15,489 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 16 [2024-12-02 13:44:15,510 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:15,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:15,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:15,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521534195] [2024-12-02 13:44:15,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521534195] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:15,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:15,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:44:15,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449597547] [2024-12-02 13:44:15,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:15,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:44:15,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:15,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:44:15,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:44:15,512 INFO L87 Difference]: Start difference. First operand 618 states and 821 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:16,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:16,135 INFO L93 Difference]: Finished difference Result 1131 states and 1484 transitions. [2024-12-02 13:44:16,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:44:16,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-12-02 13:44:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:16,137 INFO L225 Difference]: With dead ends: 1131 [2024-12-02 13:44:16,137 INFO L226 Difference]: Without dead ends: 650 [2024-12-02 13:44:16,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 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 13:44:16,138 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 59 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:16,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 400 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:44:16,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-12-02 13:44:16,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 576. [2024-12-02 13:44:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 504 states have (on average 1.2718253968253967) internal successors, (641), 509 states have internal predecessors, (641), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 761 transitions. [2024-12-02 13:44:16,218 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 761 transitions. Word has length 162 [2024-12-02 13:44:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:16,218 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 761 transitions. [2024-12-02 13:44:16,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 761 transitions. [2024-12-02 13:44:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:44:16,220 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:16,220 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:16,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:16,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:16,420 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:16,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:16,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1586754338, now seen corresponding path program 1 times [2024-12-02 13:44:16,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:16,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038052902] [2024-12-02 13:44:16,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:16,421 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 13:44:16,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:16,422 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:16,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:16,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:44:16,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:16,674 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:16,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:16,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038052902] [2024-12-02 13:44:16,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038052902] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:16,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:16,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:44:16,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648823946] [2024-12-02 13:44:16,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:16,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:44:16,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:16,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:44:16,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:44:16,675 INFO L87 Difference]: Start difference. First operand 576 states and 761 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:16,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:16,762 INFO L93 Difference]: Finished difference Result 1033 states and 1357 transitions. [2024-12-02 13:44:16,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:44:16,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-12-02 13:44:16,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:16,764 INFO L225 Difference]: With dead ends: 1033 [2024-12-02 13:44:16,764 INFO L226 Difference]: Without dead ends: 594 [2024-12-02 13:44:16,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 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 13:44:16,765 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 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 13:44:16,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:16,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-02 13:44:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2024-12-02 13:44:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 522 states have (on average 1.2624521072796935) internal successors, (659), 527 states have internal predecessors, (659), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 779 transitions. [2024-12-02 13:44:16,828 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 779 transitions. Word has length 162 [2024-12-02 13:44:16,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:16,829 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 779 transitions. [2024-12-02 13:44:16,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 779 transitions. [2024-12-02 13:44:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:44:16,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:16,829 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:16,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-02 13:44:17,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:17,030 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:17,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:17,030 INFO L85 PathProgramCache]: Analyzing trace with hash -38071043, now seen corresponding path program 1 times [2024-12-02 13:44:17,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:17,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229890366] [2024-12-02 13:44:17,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:17,031 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 13:44:17,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:17,032 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:17,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:17,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 13:44:17,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:17,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:44:17,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:17,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:17,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 13:44:17,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:17,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:17,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:17,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 13:44:17,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:17,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-12-02 13:44:17,892 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:17,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 13:44:18,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:18,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-02 13:44:18,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:18,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-12-02 13:44:18,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:18,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 90 [2024-12-02 13:44:18,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:18,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 110 treesize of output 115 [2024-12-02 13:44:18,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:18,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 120 treesize of output 119 [2024-12-02 13:44:19,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:19,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 120 treesize of output 119 [2024-12-02 13:44:19,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:19,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 62 [2024-12-02 13:44:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 628 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 13:44:19,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:19,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:19,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229890366] [2024-12-02 13:44:19,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229890366] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:19,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:19,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 13:44:19,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037949324] [2024-12-02 13:44:19,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:19,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:44:19,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:19,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:44:19,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:44:19,548 INFO L87 Difference]: Start difference. First operand 594 states and 779 transitions. Second operand has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 13:44:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:23,666 INFO L93 Difference]: Finished difference Result 1125 states and 1457 transitions. [2024-12-02 13:44:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:44:23,667 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 162 [2024-12-02 13:44:23,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:23,669 INFO L225 Difference]: With dead ends: 1125 [2024-12-02 13:44:23,669 INFO L226 Difference]: Without dead ends: 668 [2024-12-02 13:44:23,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:44:23,672 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 300 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:23,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 748 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 13:44:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-12-02 13:44:23,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 595. [2024-12-02 13:44:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 523 states have (on average 1.2619502868068833) internal successors, (660), 528 states have internal predecessors, (660), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:23,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 780 transitions. [2024-12-02 13:44:23,746 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 780 transitions. Word has length 162 [2024-12-02 13:44:23,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:23,747 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 780 transitions. [2024-12-02 13:44:23,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 13:44:23,747 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 780 transitions. [2024-12-02 13:44:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 13:44:23,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:23,748 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:23,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:23,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:23,949 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:23,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:23,949 INFO L85 PathProgramCache]: Analyzing trace with hash 102477567, now seen corresponding path program 1 times [2024-12-02 13:44:23,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:23,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622709673] [2024-12-02 13:44:23,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:23,950 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 13:44:23,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:23,951 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:23,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:24,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 13:44:24,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:24,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:44:24,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:44:24,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:44:24,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 13:44:24,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:24,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:24,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:24,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:24,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:24,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:24,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:24,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:24,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:24,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:24,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:24,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:25,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:25,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 51 [2024-12-02 13:44:25,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:25,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 54 [2024-12-02 13:44:25,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:25,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 54 [2024-12-02 13:44:25,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:25,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 33 [2024-12-02 13:44:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 13:44:25,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:25,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:25,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622709673] [2024-12-02 13:44:25,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622709673] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:25,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:25,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 13:44:25,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267391336] [2024-12-02 13:44:25,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:25,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:44:25,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:25,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:44:25,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:44:25,394 INFO L87 Difference]: Start difference. First operand 595 states and 780 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:44:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:27,949 INFO L93 Difference]: Finished difference Result 1126 states and 1459 transitions. [2024-12-02 13:44:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:44:27,950 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-12-02 13:44:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:27,952 INFO L225 Difference]: With dead ends: 1126 [2024-12-02 13:44:27,952 INFO L226 Difference]: Without dead ends: 668 [2024-12-02 13:44:27,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:44:27,953 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 182 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:27,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 729 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 13:44:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-12-02 13:44:28,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 596. [2024-12-02 13:44:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 524 states have (on average 1.2614503816793894) internal successors, (661), 529 states have internal predecessors, (661), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:28,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 781 transitions. [2024-12-02 13:44:28,029 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 781 transitions. Word has length 162 [2024-12-02 13:44:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:28,029 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 781 transitions. [2024-12-02 13:44:28,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 13:44:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 781 transitions. [2024-12-02 13:44:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:44:28,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:28,030 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:28,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:28,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:28,230 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:28,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:28,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1731578697, now seen corresponding path program 1 times [2024-12-02 13:44:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:28,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641117217] [2024-12-02 13:44:28,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:28,231 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 13:44:28,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:28,233 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:28,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:28,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 13:44:28,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:28,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:44:28,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 13:44:28,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 13:44:28,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 13:44:29,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:29,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 13:44:29,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:29,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-12-02 13:44:29,427 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:29,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 13:44:29,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:29,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 91 treesize of output 99 [2024-12-02 13:44:29,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:29,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 102 [2024-12-02 13:44:29,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:29,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 102 [2024-12-02 13:44:30,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:30,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 45 [2024-12-02 13:44:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 569 proven. 30 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-12-02 13:44:30,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:44:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:30,359 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:30,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641117217] [2024-12-02 13:44:30,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641117217] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:30,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:44:30,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-12-02 13:44:30,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213579087] [2024-12-02 13:44:30,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:30,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:44:30,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:30,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:44:30,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:44:30,360 INFO L87 Difference]: Start difference. First operand 596 states and 781 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:30,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:30,783 INFO L93 Difference]: Finished difference Result 1066 states and 1381 transitions. [2024-12-02 13:44:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:44:30,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-12-02 13:44:30,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:30,786 INFO L225 Difference]: With dead ends: 1066 [2024-12-02 13:44:30,786 INFO L226 Difference]: Without dead ends: 607 [2024-12-02 13:44:30,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 310 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:44:30,786 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:30,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 281 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:44:30,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-12-02 13:44:30,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 604. [2024-12-02 13:44:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 530 states have (on average 1.2528301886792452) internal successors, (664), 535 states have internal predecessors, (664), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 13:44:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 784 transitions. [2024-12-02 13:44:30,873 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 784 transitions. Word has length 164 [2024-12-02 13:44:30,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:30,873 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 784 transitions. [2024-12-02 13:44:30,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:30,873 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 784 transitions. [2024-12-02 13:44:30,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:44:30,874 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:30,874 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:30,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:31,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:31,075 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:31,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash -710510343, now seen corresponding path program 1 times [2024-12-02 13:44:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:31,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040398547] [2024-12-02 13:44:31,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:31,076 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 13:44:31,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:31,077 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:31,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-12-02 13:44:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:31,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 13:44:31,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:31,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:44:31,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 46 [2024-12-02 13:44:31,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:31,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 88 [2024-12-02 13:44:32,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:32,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 125 treesize of output 91 [2024-12-02 13:44:32,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:32,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 176 treesize of output 124 [2024-12-02 13:44:32,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:32,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 266 treesize of output 100 [2024-12-02 13:44:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:44:32,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:44:33,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:33,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040398547] [2024-12-02 13:44:33,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040398547] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:33,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1046971003] [2024-12-02 13:44:33,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:33,137 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:44:33,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:44:33,144 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:44:33,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-12-02 13:44:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:34,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 13:44:34,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:34,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 13:44:35,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2024-12-02 13:44:35,159 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:35,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 80 [2024-12-02 13:44:35,395 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:35,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 103 treesize of output 83 [2024-12-02 13:44:35,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:35,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 110 [2024-12-02 13:44:36,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:36,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 100 [2024-12-02 13:44:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:44:36,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:44:36,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1046971003] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:36,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:44:36,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2024-12-02 13:44:36,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779823374] [2024-12-02 13:44:36,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:44:36,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:44:36,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:36,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:44:36,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2024-12-02 13:44:36,388 INFO L87 Difference]: Start difference. First operand 604 states and 784 transitions. Second operand has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 13:44:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:41,647 INFO L93 Difference]: Finished difference Result 1168 states and 1507 transitions. [2024-12-02 13:44:41,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:44:41,647 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 164 [2024-12-02 13:44:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:41,650 INFO L225 Difference]: With dead ends: 1168 [2024-12-02 13:44:41,650 INFO L226 Difference]: Without dead ends: 1166 [2024-12-02 13:44:41,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 13:44:41,650 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 402 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:41,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 772 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 13:44:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-12-02 13:44:41,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1161. [2024-12-02 13:44:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1034 states have (on average 1.2553191489361701) internal successors, (1298), 1045 states have internal predecessors, (1298), 101 states have call successors, (101), 25 states have call predecessors, (101), 25 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:44:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1500 transitions. [2024-12-02 13:44:41,803 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1500 transitions. Word has length 164 [2024-12-02 13:44:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:41,803 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1500 transitions. [2024-12-02 13:44:41,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 13:44:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1500 transitions. [2024-12-02 13:44:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:44:41,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:41,804 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:41,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-12-02 13:44:42,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-12-02 13:44:42,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 13:44:42,205 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:42,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:42,205 INFO L85 PathProgramCache]: Analyzing trace with hash -708663301, now seen corresponding path program 1 times [2024-12-02 13:44:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:42,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740124388] [2024-12-02 13:44:42,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:42,206 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 13:44:42,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:42,207 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:42,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:42,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 13:44:42,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:42,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:44:42,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 13:44:42,639 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 43 treesize of output 25 [2024-12-02 13:44:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:42,661 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:42,661 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:42,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740124388] [2024-12-02 13:44:42,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740124388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:42,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:42,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:44:42,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167846054] [2024-12-02 13:44:42,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:42,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:44:42,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:42,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:44:42,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:44:42,663 INFO L87 Difference]: Start difference. First operand 1161 states and 1500 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:43,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:43,558 INFO L93 Difference]: Finished difference Result 3143 states and 4038 transitions. [2024-12-02 13:44:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:44:43,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-12-02 13:44:43,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:43,565 INFO L225 Difference]: With dead ends: 3143 [2024-12-02 13:44:43,565 INFO L226 Difference]: Without dead ends: 2210 [2024-12-02 13:44:43,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:44:43,567 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 107 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:43,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 744 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:44:43,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-12-02 13:44:43,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1689. [2024-12-02 13:44:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1562 states have (on average 1.2740076824583866) internal successors, (1990), 1573 states have internal predecessors, (1990), 101 states have call successors, (101), 25 states have call predecessors, (101), 25 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:44:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2192 transitions. [2024-12-02 13:44:43,774 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2192 transitions. Word has length 164 [2024-12-02 13:44:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:43,774 INFO L471 AbstractCegarLoop]: Abstraction has 1689 states and 2192 transitions. [2024-12-02 13:44:43,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2192 transitions. [2024-12-02 13:44:43,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:44:43,775 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:43,775 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:43,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:43,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:43,975 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:43,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1518009927, now seen corresponding path program 1 times [2024-12-02 13:44:43,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:43,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684693337] [2024-12-02 13:44:43,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:43,976 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 13:44:43,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:43,977 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:43,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:44,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 13:44:44,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:44,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:44:44,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-12-02 13:44:44,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:44,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:44,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:44,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:45,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:45,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 13:44:45,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:45,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-12-02 13:44:45,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:45,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 72 [2024-12-02 13:44:45,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:45,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 76 [2024-12-02 13:44:45,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:45,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 76 [2024-12-02 13:44:46,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:46,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 37 [2024-12-02 13:44:46,060 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 420 proven. 48 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-12-02 13:44:46,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:44:46,200 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:46,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684693337] [2024-12-02 13:44:46,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684693337] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:46,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [184992207] [2024-12-02 13:44:46,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:46,200 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:44:46,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:44:46,202 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:44:46,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-12-02 13:44:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:47,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 13:44:47,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:47,141 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 13:44:47,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 13:44:47,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2024-12-02 13:44:47,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:47,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2024-12-02 13:44:47,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:47,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-12-02 13:44:48,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:48,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 52 [2024-12-02 13:44:48,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:48,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 81 [2024-12-02 13:44:48,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:48,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 84 [2024-12-02 13:44:48,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:48,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 84 [2024-12-02 13:44:48,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:48,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 46 [2024-12-02 13:44:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 494 proven. 48 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-12-02 13:44:48,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:44:49,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [184992207] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:49,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:44:49,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-12-02 13:44:49,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683185505] [2024-12-02 13:44:49,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:44:49,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 13:44:49,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:49,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 13:44:49,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:44:49,067 INFO L87 Difference]: Start difference. First operand 1689 states and 2192 transitions. Second operand has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) [2024-12-02 13:44:56,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:56,654 INFO L93 Difference]: Finished difference Result 3184 states and 4059 transitions. [2024-12-02 13:44:56,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 13:44:56,655 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) Word has length 164 [2024-12-02 13:44:56,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:56,658 INFO L225 Difference]: With dead ends: 3184 [2024-12-02 13:44:56,658 INFO L226 Difference]: Without dead ends: 1803 [2024-12-02 13:44:56,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=733, Invalid=2807, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 13:44:56,660 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 407 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:56,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 629 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 13:44:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-12-02 13:44:56,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1749. [2024-12-02 13:44:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1607 states have (on average 1.251400124455507) internal successors, (2011), 1618 states have internal predecessors, (2011), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:44:56,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2213 transitions. [2024-12-02 13:44:56,878 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2213 transitions. Word has length 164 [2024-12-02 13:44:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:56,879 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2213 transitions. [2024-12-02 13:44:56,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) [2024-12-02 13:44:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2213 transitions. [2024-12-02 13:44:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:44:56,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:56,880 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:56,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:57,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-12-02 13:44:57,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 13:44:57,280 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:57,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1568833127, now seen corresponding path program 1 times [2024-12-02 13:44:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:57,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491403917] [2024-12-02 13:44:57,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:57,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:57,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:57,283 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:57,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 13:44:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:57,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:44:57,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:57,593 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:57,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:57,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:57,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491403917] [2024-12-02 13:44:57,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491403917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:57,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:57,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:44:57,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000752097] [2024-12-02 13:44:57,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:57,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:44:57,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:57,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:44:57,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:44:57,594 INFO L87 Difference]: Start difference. First operand 1749 states and 2213 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:57,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:57,975 INFO L93 Difference]: Finished difference Result 3266 states and 4108 transitions. [2024-12-02 13:44:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:44:57,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-12-02 13:44:57,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:57,980 INFO L225 Difference]: With dead ends: 3266 [2024-12-02 13:44:57,980 INFO L226 Difference]: Without dead ends: 1845 [2024-12-02 13:44:57,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 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 13:44:57,982 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:57,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 659 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:44:57,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2024-12-02 13:44:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1773. [2024-12-02 13:44:58,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1631 states have (on average 1.2477007970570202) internal successors, (2035), 1642 states have internal predecessors, (2035), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:44:58,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2237 transitions. [2024-12-02 13:44:58,282 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2237 transitions. Word has length 164 [2024-12-02 13:44:58,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:58,282 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 2237 transitions. [2024-12-02 13:44:58,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:44:58,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2237 transitions. [2024-12-02 13:44:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:44:58,283 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:58,283 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:58,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-02 13:44:58,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:44:58,484 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:58,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash 867768549, now seen corresponding path program 1 times [2024-12-02 13:44:58,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:44:58,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481927457] [2024-12-02 13:44:58,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:58,484 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 13:44:58,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:44:58,486 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:58,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:44:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:58,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:44:58,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:58,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:44:58,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-12-02 13:44:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:44:58,911 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:58,911 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:44:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481927457] [2024-12-02 13:44:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481927457] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:58,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:58,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:44:58,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811414404] [2024-12-02 13:44:58,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:58,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:44:58,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:44:58,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:44:58,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:44:58,913 INFO L87 Difference]: Start difference. First operand 1773 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:45:00,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:00,567 INFO L93 Difference]: Finished difference Result 4403 states and 5417 transitions. [2024-12-02 13:45:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:45:00,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-12-02 13:45:00,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:00,573 INFO L225 Difference]: With dead ends: 4403 [2024-12-02 13:45:00,573 INFO L226 Difference]: Without dead ends: 2958 [2024-12-02 13:45:00,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:45:00,574 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 101 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:00,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 288 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:45:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2024-12-02 13:45:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2325. [2024-12-02 13:45:00,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2183 states have (on average 1.2253779202931745) internal successors, (2675), 2194 states have internal predecessors, (2675), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:45:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 2877 transitions. [2024-12-02 13:45:00,845 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 2877 transitions. Word has length 164 [2024-12-02 13:45:00,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:00,845 INFO L471 AbstractCegarLoop]: Abstraction has 2325 states and 2877 transitions. [2024-12-02 13:45:00,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:45:00,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 2877 transitions. [2024-12-02 13:45:00,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:45:00,847 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:00,847 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:45:00,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 13:45:01,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:45:01,047 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:01,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:01,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1214564733, now seen corresponding path program 1 times [2024-12-02 13:45:01,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:45:01,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045393249] [2024-12-02 13:45:01,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:01,048 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 13:45:01,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:45:01,049 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:01,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:01,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 13:45:01,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:01,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:45:01,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-12-02 13:45:01,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:01,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-12-02 13:45:01,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:01,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:45:02,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:02,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-12-02 13:45:02,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:02,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 58 [2024-12-02 13:45:02,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:02,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 91 [2024-12-02 13:45:02,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:02,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 98 treesize of output 46 [2024-12-02 13:45:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 458 proven. 48 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-12-02 13:45:02,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:02,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:45:02,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045393249] [2024-12-02 13:45:02,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045393249] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:02,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1902342533] [2024-12-02 13:45:02,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:02,472 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:45:02,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:45:02,474 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:45:02,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-12-02 13:45:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:03,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:45:03,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:03,392 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 13:45:03,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-12-02 13:45:04,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2024-12-02 13:45:04,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:04,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 41 [2024-12-02 13:45:04,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:04,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-12-02 13:45:04,816 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:04,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-12-02 13:45:04,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:04,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 75 [2024-12-02 13:45:05,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:05,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 40 [2024-12-02 13:45:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 504 proven. 48 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-12-02 13:45:05,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:05,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1902342533] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:05,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:45:05,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-12-02 13:45:05,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827082637] [2024-12-02 13:45:05,193 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:45:05,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 13:45:05,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:45:05,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 13:45:05,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2024-12-02 13:45:05,195 INFO L87 Difference]: Start difference. First operand 2325 states and 2877 transitions. Second operand has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) [2024-12-02 13:45:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:12,518 INFO L93 Difference]: Finished difference Result 3608 states and 4425 transitions. [2024-12-02 13:45:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 13:45:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) Word has length 164 [2024-12-02 13:45:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:12,522 INFO L225 Difference]: With dead ends: 3608 [2024-12-02 13:45:12,522 INFO L226 Difference]: Without dead ends: 1563 [2024-12-02 13:45:12,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=631, Invalid=2125, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 13:45:12,524 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 558 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:12,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 524 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 13:45:12,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-12-02 13:45:12,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1509. [2024-12-02 13:45:12,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1367 states have (on average 1.1814191660570592) internal successors, (1615), 1378 states have internal predecessors, (1615), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:45:12,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1817 transitions. [2024-12-02 13:45:12,810 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1817 transitions. Word has length 164 [2024-12-02 13:45:12,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:12,810 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1817 transitions. [2024-12-02 13:45:12,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) [2024-12-02 13:45:12,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1817 transitions. [2024-12-02 13:45:12,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:45:12,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:12,811 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:45:12,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-12-02 13:45:13,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:13,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:45:13,212 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:13,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash -345375303, now seen corresponding path program 1 times [2024-12-02 13:45:13,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:45:13,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227436242] [2024-12-02 13:45:13,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:13,213 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 13:45:13,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:45:13,214 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:13,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:13,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 13:45:13,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:13,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:45:14,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 46 [2024-12-02 13:45:14,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:14,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 49 [2024-12-02 13:45:14,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:14,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 82 [2024-12-02 13:45:14,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:14,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 85 [2024-12-02 13:45:14,527 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:45:14,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:14,803 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:45:14,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227436242] [2024-12-02 13:45:14,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227436242] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:14,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1664094696] [2024-12-02 13:45:14,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:14,803 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:45:14,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:45:14,804 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:45:14,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-12-02 13:45:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:15,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 13:45:15,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:16,237 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 13:45:16,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2024-12-02 13:45:16,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:16,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 47 [2024-12-02 13:45:16,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:16,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 74 [2024-12-02 13:45:17,212 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:17,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 185 treesize of output 85 [2024-12-02 13:45:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:45:17,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:17,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1664094696] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:17,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:45:17,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2024-12-02 13:45:17,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525266062] [2024-12-02 13:45:17,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:45:17,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:45:17,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:45:17,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:45:17,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:45:17,449 INFO L87 Difference]: Start difference. First operand 1509 states and 1817 transitions. Second operand has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 13:45:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:23,482 INFO L93 Difference]: Finished difference Result 1523 states and 1832 transitions. [2024-12-02 13:45:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:45:23,483 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 164 [2024-12-02 13:45:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:23,487 INFO L225 Difference]: With dead ends: 1523 [2024-12-02 13:45:23,487 INFO L226 Difference]: Without dead ends: 1521 [2024-12-02 13:45:23,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:45:23,488 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 377 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:23,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 697 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 13:45:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-12-02 13:45:23,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1518. [2024-12-02 13:45:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1376 states have (on average 1.180232558139535) internal successors, (1624), 1387 states have internal predecessors, (1624), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:45:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1826 transitions. [2024-12-02 13:45:23,728 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1826 transitions. Word has length 164 [2024-12-02 13:45:23,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:23,728 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1826 transitions. [2024-12-02 13:45:23,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 13:45:23,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1826 transitions. [2024-12-02 13:45:23,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 13:45:23,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:23,729 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:45:23,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:23,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-12-02 13:45:24,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 13:45:24,130 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:24,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash 182975995, now seen corresponding path program 1 times [2024-12-02 13:45:24,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:45:24,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830204198] [2024-12-02 13:45:24,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:24,131 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 13:45:24,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:45:24,132 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:24,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:24,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:45:24,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:45:24,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:45:24,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:45:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830204198] [2024-12-02 13:45:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830204198] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:24,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:24,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:45:24,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802131605] [2024-12-02 13:45:24,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:24,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:45:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:45:24,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:45:24,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:45:24,429 INFO L87 Difference]: Start difference. First operand 1518 states and 1826 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:45:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:24,692 INFO L93 Difference]: Finished difference Result 2857 states and 3434 transitions. [2024-12-02 13:45:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:45:24,693 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2024-12-02 13:45:24,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:24,696 INFO L225 Difference]: With dead ends: 2857 [2024-12-02 13:45:24,696 INFO L226 Difference]: Without dead ends: 1518 [2024-12-02 13:45:24,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 161 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 13:45:24,697 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 403 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 13:45:24,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 403 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:45:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-12-02 13:45:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1518. [2024-12-02 13:45:24,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1376 states have (on average 1.1787790697674418) internal successors, (1622), 1387 states have internal predecessors, (1622), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 13:45:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1824 transitions. [2024-12-02 13:45:24,936 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1824 transitions. Word has length 164 [2024-12-02 13:45:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:24,936 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1824 transitions. [2024-12-02 13:45:24,936 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 13:45:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1824 transitions. [2024-12-02 13:45:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 13:45:24,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:24,937 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:45:24,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:25,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:45:25,137 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:25,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1860551738, now seen corresponding path program 1 times [2024-12-02 13:45:25,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:45:25,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040101862] [2024-12-02 13:45:25,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:25,138 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 13:45:25,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:45:25,139 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:25,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:45:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:25,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 13:45:25,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:25,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:45:25,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 13:45:26,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:26,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-12-02 13:45:26,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:26,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-12-02 13:45:26,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:26,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 45 [2024-12-02 13:45:26,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:26,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 82 [2024-12-02 13:45:26,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:26,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 85 [2024-12-02 13:45:26,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:26,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 85 [2024-12-02 13:45:26,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:26,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 144 treesize of output 140 [2024-12-02 13:45:28,102 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 436 proven. 30 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-12-02 13:45:28,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:32,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:45:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040101862] [2024-12-02 13:45:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040101862] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1162807769] [2024-12-02 13:45:32,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:32,101 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:45:32,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:45:32,103 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:45:32,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-12-02 13:45:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:32,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 13:45:32,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:33,226 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 13:45:34,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-12-02 13:45:34,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-12-02 13:45:34,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-12-02 13:45:35,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2024-12-02 13:45:36,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:36,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2024-12-02 13:45:38,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:38,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2024-12-02 13:45:39,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:39,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2024-12-02 13:45:39,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:39,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 56 [2024-12-02 13:45:40,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:40,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 80 [2024-12-02 13:45:40,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:40,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 78 [2024-12-02 13:45:40,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:40,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 78 [2024-12-02 13:45:41,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:45:41,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 127 [2024-12-02 13:45:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 584 proven. 66 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-02 13:45:46,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:46:11,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1162807769] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:46:11,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:46:11,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 37 [2024-12-02 13:46:11,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475681900] [2024-12-02 13:46:11,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:46:11,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 13:46:11,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:46:11,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 13:46:11,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1820, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 13:46:11,574 INFO L87 Difference]: Start difference. First operand 1518 states and 1824 transitions. Second operand has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) [2024-12-02 13:47:00,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:18,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:19,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:25,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:47:25,319 INFO L93 Difference]: Finished difference Result 3243 states and 3834 transitions. [2024-12-02 13:47:25,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-12-02 13:47:25,323 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) Word has length 165 [2024-12-02 13:47:25,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:47:25,329 INFO L225 Difference]: With dead ends: 3243 [2024-12-02 13:47:25,329 INFO L226 Difference]: Without dead ends: 1993 [2024-12-02 13:47:25,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 353 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1451 ImplicationChecksByTransitivity, 58.4s TimeCoverageRelationStatistics Valid=939, Invalid=4173, Unknown=0, NotChecked=0, Total=5112 [2024-12-02 13:47:25,332 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 833 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:47:25,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 837 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 51.0s Time] [2024-12-02 13:47:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2024-12-02 13:47:25,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1279. [2024-12-02 13:47:25,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1163 states have (on average 1.1891659501289769) internal successors, (1383), 1168 states have internal predecessors, (1383), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 13:47:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1529 transitions. [2024-12-02 13:47:25,574 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1529 transitions. Word has length 165 [2024-12-02 13:47:25,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:47:25,575 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1529 transitions. [2024-12-02 13:47:25,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) [2024-12-02 13:47:25,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1529 transitions. [2024-12-02 13:47:25,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 13:47:25,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:47:25,575 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:25,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2024-12-02 13:47:25,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:47:25,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:47:25,976 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:47:25,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:25,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1720003128, now seen corresponding path program 1 times [2024-12-02 13:47:25,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:47:25,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752705866] [2024-12-02 13:47:25,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:25,977 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 13:47:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:47:25,979 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:47:25,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-12-02 13:47:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:26,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:47:26,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:27,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:47:27,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 28 [2024-12-02 13:47:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:47:28,488 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:47:28,488 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:47:28,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752705866] [2024-12-02 13:47:28,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752705866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:28,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:28,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:47:28,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234607857] [2024-12-02 13:47:28,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:28,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:47:28,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:47:28,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:47:28,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:47:28,489 INFO L87 Difference]: Start difference. First operand 1279 states and 1529 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:47:33,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:37,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:42,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:47,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:50,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:53,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:47:57,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:01,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:04,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:08,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:13,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:15,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:19,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:23,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:26,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:29,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:32,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:36,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:41,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:48:41,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:48:41,609 INFO L93 Difference]: Finished difference Result 2677 states and 3187 transitions. [2024-12-02 13:48:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:48:41,777 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-12-02 13:48:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:48:41,783 INFO L225 Difference]: With dead ends: 2677 [2024-12-02 13:48:41,783 INFO L226 Difference]: Without dead ends: 1694 [2024-12-02 13:48:41,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:48:41,785 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 44 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:48:41,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 465 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 10 Unknown, 0 Unchecked, 72.1s Time] [2024-12-02 13:48:41,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2024-12-02 13:48:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1495. [2024-12-02 13:48:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1379 states have (on average 1.18854242204496) internal successors, (1639), 1384 states have internal predecessors, (1639), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 13:48:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1785 transitions. [2024-12-02 13:48:42,070 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1785 transitions. Word has length 165 [2024-12-02 13:48:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:48:42,070 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 1785 transitions. [2024-12-02 13:48:42,070 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:48:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1785 transitions. [2024-12-02 13:48:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 13:48:42,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:48:42,071 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:42,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-12-02 13:48:42,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:48:42,272 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:48:42,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:48:42,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1435979458, now seen corresponding path program 1 times [2024-12-02 13:48:42,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:48:42,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087484633] [2024-12-02 13:48:42,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:42,273 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 13:48:42,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:48:42,274 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:48:42,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:48:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:42,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 13:48:42,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:48:42,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:48:43,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 13:48:44,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 13:48:45,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:48:45,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 13:48:47,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2024-12-02 13:48:50,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:48:50,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-12-02 13:48:56,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:48:56,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 69 [2024-12-02 13:48:58,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:48:58,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 69 [2024-12-02 13:49:01,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:01,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 81 [2024-12-02 13:49:03,317 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:03,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 84 [2024-12-02 13:49:03,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:03,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 84 [2024-12-02 13:49:05,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:05,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 138 [2024-12-02 13:49:14,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:14,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 174 treesize of output 80 [2024-12-02 13:49:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 605 proven. 66 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-12-02 13:49:16,219 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:49:28,520 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:49:28,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087484633] [2024-12-02 13:49:28,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087484633] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:49:28,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2099307540] [2024-12-02 13:49:28,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:49:28,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:49:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:49:28,522 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:49:28,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-12-02 13:49:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:49:29,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 13:49:29,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:49:31,385 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 13:49:35,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-12-02 13:49:38,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:38,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 13:49:41,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:41,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 43 [2024-12-02 13:49:45,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 46 [2024-12-02 13:49:53,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:49:53,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 58 [2024-12-02 13:50:03,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:50:03,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 78 [2024-12-02 13:50:09,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:50:09,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 81 [2024-12-02 13:50:17,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:50:17,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 99 [2024-12-02 13:50:20,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:50:20,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 102 [2024-12-02 13:50:20,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:50:20,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 102 [2024-12-02 13:50:21,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:50:21,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 106 treesize of output 58 [2024-12-02 13:50:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 617 proven. 66 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-12-02 13:50:23,772 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:50:31,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2099307540] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:50:31,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:50:31,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2024-12-02 13:50:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611294529] [2024-12-02 13:50:31,672 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:50:31,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-12-02 13:50:31,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:50:31,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-12-02 13:50:31,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=373, Invalid=2077, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 13:50:31,674 INFO L87 Difference]: Start difference. First operand 1495 states and 1785 transitions. Second operand has 43 states, 37 states have (on average 4.783783783783784) internal successors, (177), 42 states have internal predecessors, (177), 19 states have call successors, (40), 13 states have call predecessors, (40), 19 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) [2024-12-02 13:50:45,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:51:35,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:51:51,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:51:59,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:52:19,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:52:21,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:52:28,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:52:48,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:52:49,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:53:04,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:53:05,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:53:12,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:53:12,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:12,429 INFO L93 Difference]: Finished difference Result 3161 states and 3727 transitions. [2024-12-02 13:53:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-12-02 13:53:12,433 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 37 states have (on average 4.783783783783784) internal successors, (177), 42 states have internal predecessors, (177), 19 states have call successors, (40), 13 states have call predecessors, (40), 19 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) Word has length 165 [2024-12-02 13:53:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:12,439 INFO L225 Difference]: With dead ends: 3161 [2024-12-02 13:53:12,439 INFO L226 Difference]: Without dead ends: 1978 [2024-12-02 13:53:12,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 361 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 104.9s TimeCoverageRelationStatistics Valid=1279, Invalid=5693, Unknown=0, NotChecked=0, Total=6972 [2024-12-02 13:53:12,442 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 837 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:12,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1521 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 110.5s Time] [2024-12-02 13:53:12,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-12-02 13:53:12,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1457. [2024-12-02 13:53:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1341 states have (on average 1.1819537658463832) internal successors, (1585), 1346 states have internal predecessors, (1585), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 13:53:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1731 transitions. [2024-12-02 13:53:12,696 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1731 transitions. Word has length 165 [2024-12-02 13:53:12,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:12,696 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 1731 transitions. [2024-12-02 13:53:12,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 37 states have (on average 4.783783783783784) internal successors, (177), 42 states have internal predecessors, (177), 19 states have call successors, (40), 13 states have call predecessors, (40), 19 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) [2024-12-02 13:53:12,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1731 transitions. [2024-12-02 13:53:12,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 13:53:12,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:12,697 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:12,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 13:53:12,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2024-12-02 13:53:13,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 13:53:13,098 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:13,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:13,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1809264774, now seen corresponding path program 1 times [2024-12-02 13:53:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:53:13,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571489826] [2024-12-02 13:53:13,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:13,098 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 13:53:13,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:53:13,100 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:53:13,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:53:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:13,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 13:53:13,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:53:13,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 13:53:17,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2024-12-02 13:53:22,142 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:53:22,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 42 [2024-12-02 13:53:25,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:53:25,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 54 [2024-12-02 13:53:26,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:53:26,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 82 [2024-12-02 13:53:28,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:53:28,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 95 [2024-12-02 13:53:29,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:53:29,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 98 [2024-12-02 13:53:30,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:53:30,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 122 treesize of output 121 [2024-12-02 13:53:36,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:53:36,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 204 treesize of output 104 [2024-12-02 13:53:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 367 proven. 24 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-12-02 13:53:39,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:53:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:53:44,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:53:44,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571489826] [2024-12-02 13:53:44,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571489826] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:53:44,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:53:44,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [23] total 26 [2024-12-02 13:53:44,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191857310] [2024-12-02 13:53:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:44,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:44,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:53:44,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:44,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2024-12-02 13:53:44,131 INFO L87 Difference]: Start difference. First operand 1457 states and 1731 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:53:54,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:54,429 INFO L93 Difference]: Finished difference Result 2913 states and 3439 transitions. [2024-12-02 13:53:54,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:53:54,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-12-02 13:53:54,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:54,434 INFO L225 Difference]: With dead ends: 2913 [2024-12-02 13:53:54,434 INFO L226 Difference]: Without dead ends: 1768 [2024-12-02 13:53:54,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:53:54,435 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 68 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:54,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 968 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-12-02 13:53:54,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2024-12-02 13:53:54,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1433. [2024-12-02 13:53:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1317 states have (on average 1.1807137433561123) internal successors, (1555), 1322 states have internal predecessors, (1555), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 13:53:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1701 transitions. [2024-12-02 13:53:54,693 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1701 transitions. Word has length 165 [2024-12-02 13:53:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:54,693 INFO L471 AbstractCegarLoop]: Abstraction has 1433 states and 1701 transitions. [2024-12-02 13:53:54,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 13:53:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1701 transitions. [2024-12-02 13:53:54,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 13:53:54,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:54,694 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:54,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:53:54,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:53:54,895 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:54,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:54,895 INFO L85 PathProgramCache]: Analyzing trace with hash -536907009, now seen corresponding path program 1 times [2024-12-02 13:53:54,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:53:54,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400312029] [2024-12-02 13:53:54,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:54,896 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 13:53:54,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:53:54,897 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:53:54,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-12-02 13:53:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:55,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 13:53:55,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:53:59,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 13:54:03,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 44 [2024-12-02 13:54:04,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:04,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 86 [2024-12-02 13:54:04,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:04,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 89 [2024-12-02 13:54:05,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:05,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 174 treesize of output 122 [2024-12-02 13:54:10,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:10,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 264 treesize of output 98 [2024-12-02 13:54:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:54:11,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:54:16,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:54:16,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400312029] [2024-12-02 13:54:16,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400312029] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:54:16,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1054107130] [2024-12-02 13:54:16,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:16,241 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:54:16,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:54:16,243 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:54:16,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2024-12-02 13:54:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:17,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 13:54:17,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:27,030 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 13:54:35,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 42 [2024-12-02 13:54:36,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:36,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 78 [2024-12-02 13:54:37,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:37,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 81 [2024-12-02 13:54:38,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:38,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 140 treesize of output 108 [2024-12-02 13:54:44,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:54:44,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 98 [2024-12-02 13:54:44,973 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:54:44,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:54:47,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1054107130] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:54:47,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:54:47,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2024-12-02 13:54:47,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742437145] [2024-12-02 13:54:47,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:54:47,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 13:54:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:54:47,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 13:54:47,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2024-12-02 13:54:47,642 INFO L87 Difference]: Start difference. First operand 1433 states and 1701 transitions. Second operand has 27 states, 25 states have (on average 5.6) internal successors, (140), 24 states have internal predecessors, (140), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 13:55:37,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 13:55:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:42,379 INFO L93 Difference]: Finished difference Result 2285 states and 2697 transitions. [2024-12-02 13:55:42,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 13:55:42,380 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.6) internal successors, (140), 24 states have internal predecessors, (140), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 166 [2024-12-02 13:55:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:42,384 INFO L225 Difference]: With dead ends: 2285 [2024-12-02 13:55:42,384 INFO L226 Difference]: Without dead ends: 2283 [2024-12-02 13:55:42,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 374 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=505, Invalid=2045, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 13:55:42,385 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 318 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:42,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 744 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 44.2s Time] [2024-12-02 13:55:42,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2024-12-02 13:55:42,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1766. [2024-12-02 13:55:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1645 states have (on average 1.1872340425531915) internal successors, (1953), 1650 states have internal predecessors, (1953), 75 states have call successors, (75), 45 states have call predecessors, (75), 45 states have return successors, (75), 70 states have call predecessors, (75), 75 states have call successors, (75) [2024-12-02 13:55:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2103 transitions. [2024-12-02 13:55:42,691 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2103 transitions. Word has length 166 [2024-12-02 13:55:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:42,691 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2103 transitions. [2024-12-02 13:55:42,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.6) internal successors, (140), 24 states have internal predecessors, (140), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 13:55:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2103 transitions. [2024-12-02 13:55:42,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 13:55:42,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:42,692 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:42,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2024-12-02 13:55:42,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-12-02 13:55:43,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 13:55:43,093 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:43,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:43,093 INFO L85 PathProgramCache]: Analyzing trace with hash -171771969, now seen corresponding path program 1 times [2024-12-02 13:55:43,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:55:43,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034837773] [2024-12-02 13:55:43,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:43,093 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 13:55:43,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:55:43,095 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:55:43,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 13:55:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:43,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 13:55:43,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:55:48,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 13:55:51,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 44 [2024-12-02 13:55:52,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:55:52,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 47 [2024-12-02 13:55:52,816 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:55:52,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 80 [2024-12-02 13:55:57,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:55:57,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 231 treesize of output 83 [2024-12-02 13:55:58,364 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 13:55:58,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:56:03,262 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:56:03,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034837773] [2024-12-02 13:56:03,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034837773] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:56:03,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1390215] [2024-12-02 13:56:03,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:56:03,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:56:03,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:56:03,264 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:56:03,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ffedc38-560e-4778-ac85-a932ca7bc8a7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process