./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX --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 e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:07:26,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:07:26,477 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:07:26,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:07:26,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:07:26,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:07:26,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:07:26,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:07:26,540 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:07:26,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:07:26,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:07:26,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:07:26,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:07:26,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:07:26,546 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:07:26,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:07:26,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:07:26,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:07:26,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:07:26,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:07:26,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:07:26,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:07:26,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:07:26,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:07:26,557 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:07:26,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:07:26,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:07:26,559 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:07:26,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:07:26,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:07:26,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:07:26,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:07:26,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:07:26,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:07:26,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:07:26,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:07:26,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:07:26,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:07:26,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:07:26,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:07:26,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:07:26,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:07:26,565 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d [2024-11-08 17:07:26,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:07:26,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:07:26,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:07:26,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:07:26,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:07:26,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i Unable to find full path for "g++" [2024-11-08 17:07:29,550 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:07:29,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:07:29,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2024-11-08 17:07:29,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data/20a4d6592/036fe7b71caa4b7cb51eda94b2dd56dc/FLAG3aae159ef [2024-11-08 17:07:29,905 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data/20a4d6592/036fe7b71caa4b7cb51eda94b2dd56dc [2024-11-08 17:07:29,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:07:29,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:07:29,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:07:29,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:07:29,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:07:29,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:07:29" (1/1) ... [2024-11-08 17:07:29,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3058f64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:29, skipping insertion in model container [2024-11-08 17:07:29,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:07:29" (1/1) ... [2024-11-08 17:07:29,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:07:30,239 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_505da961-1cda-455c-a709-17da57ae1f9c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-11-08 17:07:30,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:07:30,324 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:07:30,340 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_505da961-1cda-455c-a709-17da57ae1f9c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-11-08 17:07:30,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:07:30,465 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:07:30,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30 WrapperNode [2024-11-08 17:07:30,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:07:30,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:07:30,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:07:30,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:07:30,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,553 INFO L138 Inliner]: procedures = 30, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 431 [2024-11-08 17:07:30,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:07:30,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:07:30,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:07:30,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:07:30,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,589 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-08 17:07:30,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:07:30,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:07:30,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:07:30,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:07:30,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (1/1) ... [2024-11-08 17:07:30,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:07:30,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:30,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:07:30,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:07:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:07:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-08 17:07:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-08 17:07:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-08 17:07:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:07:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-08 17:07:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:07:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:07:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:07:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:07:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:07:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:07:30,979 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:07:30,985 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:07:31,994 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-08 17:07:31,995 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:07:32,013 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:07:32,014 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:07:32,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:07:32 BoogieIcfgContainer [2024-11-08 17:07:32,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:07:32,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:07:32,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:07:32,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:07:32,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:07:29" (1/3) ... [2024-11-08 17:07:32,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc399ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:07:32, skipping insertion in model container [2024-11-08 17:07:32,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:30" (2/3) ... [2024-11-08 17:07:32,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc399ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:07:32, skipping insertion in model container [2024-11-08 17:07:32,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:07:32" (3/3) ... [2024-11-08 17:07:32,028 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-97.i [2024-11-08 17:07:32,053 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:07:32,053 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:07:32,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:07:32,167 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;@7c6626e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:07:32,167 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:07:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:32,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 17:07:32,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:32,195 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:32,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:32,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:32,203 INFO L85 PathProgramCache]: Analyzing trace with hash 174799884, now seen corresponding path program 1 times [2024-11-08 17:07:32,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:32,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052833702] [2024-11-08 17:07:32,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:32,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:32,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052833702] [2024-11-08 17:07:32,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052833702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:32,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:32,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:07:32,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916307743] [2024-11-08 17:07:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:32,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:07:32,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:33,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:07:33,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:07:33,018 INFO L87 Difference]: Start difference. First operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:07:33,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:33,079 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2024-11-08 17:07:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:07:33,083 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-08 17:07:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:33,096 INFO L225 Difference]: With dead ends: 209 [2024-11-08 17:07:33,097 INFO L226 Difference]: Without dead ends: 104 [2024-11-08 17:07:33,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:07:33,110 INFO L432 NwaCegarLoop]: 150 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, 150 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 [2024-11-08 17:07:33,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:07:33,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-08 17:07:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-08 17:07:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2024-11-08 17:07:33,204 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 134 [2024-11-08 17:07:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:33,205 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2024-11-08 17:07:33,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:07:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2024-11-08 17:07:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 17:07:33,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:33,213 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:33,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:07:33,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:33,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:33,215 INFO L85 PathProgramCache]: Analyzing trace with hash 320816874, now seen corresponding path program 1 times [2024-11-08 17:07:33,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:33,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204386955] [2024-11-08 17:07:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:33,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:33,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:34,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:34,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204386955] [2024-11-08 17:07:34,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204386955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:34,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:34,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:07:34,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991526628] [2024-11-08 17:07:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:34,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:07:34,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:34,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:07:34,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:34,067 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:34,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:34,176 INFO L93 Difference]: Finished difference Result 207 states and 300 transitions. [2024-11-08 17:07:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:07:34,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-08 17:07:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:34,180 INFO L225 Difference]: With dead ends: 207 [2024-11-08 17:07:34,180 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 17:07:34,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:34,187 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:34,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:07:34,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 17:07:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-08 17:07:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:34,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2024-11-08 17:07:34,235 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 134 [2024-11-08 17:07:34,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:34,241 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2024-11-08 17:07:34,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2024-11-08 17:07:34,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:34,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:34,250 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:34,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:07:34,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:34,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:34,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1210583004, now seen corresponding path program 1 times [2024-11-08 17:07:34,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22974267] [2024-11-08 17:07:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:34,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:34,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:34,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22974267] [2024-11-08 17:07:34,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22974267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:34,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:34,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:07:34,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481954378] [2024-11-08 17:07:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:34,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:07:34,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:34,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:07:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:34,780 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:34,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:34,858 INFO L93 Difference]: Finished difference Result 212 states and 305 transitions. [2024-11-08 17:07:34,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:07:34,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:07:34,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:34,862 INFO L225 Difference]: With dead ends: 212 [2024-11-08 17:07:34,862 INFO L226 Difference]: Without dead ends: 109 [2024-11-08 17:07:34,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:34,864 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:34,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 430 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:07:34,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-08 17:07:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-08 17:07:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.348314606741573) internal successors, (120), 89 states have internal predecessors, (120), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:34,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-08 17:07:34,877 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 136 [2024-11-08 17:07:34,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:34,878 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-08 17:07:34,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-08 17:07:34,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:34,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:34,882 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:34,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:07:34,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:34,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:34,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1890641374, now seen corresponding path program 1 times [2024-11-08 17:07:34,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:34,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642266778] [2024-11-08 17:07:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:34,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:35,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:35,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642266778] [2024-11-08 17:07:35,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642266778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:35,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:35,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:07:35,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495364987] [2024-11-08 17:07:35,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:35,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:07:35,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:07:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:35,234 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:35,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:35,296 INFO L93 Difference]: Finished difference Result 216 states and 309 transitions. [2024-11-08 17:07:35,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:07:35,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:07:35,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:35,299 INFO L225 Difference]: With dead ends: 216 [2024-11-08 17:07:35,303 INFO L226 Difference]: Without dead ends: 111 [2024-11-08 17:07:35,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:35,305 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:35,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 431 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:07:35,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-08 17:07:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-08 17:07:35,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-11-08 17:07:35,318 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 136 [2024-11-08 17:07:35,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:35,319 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-11-08 17:07:35,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:35,320 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-11-08 17:07:35,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:35,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:35,323 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:35,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:07:35,324 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:35,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:35,324 INFO L85 PathProgramCache]: Analyzing trace with hash -629318560, now seen corresponding path program 1 times [2024-11-08 17:07:35,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:35,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641953897] [2024-11-08 17:07:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:35,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:35,608 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:35,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:35,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641953897] [2024-11-08 17:07:35,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641953897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:35,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:35,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:07:35,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243781258] [2024-11-08 17:07:35,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:35,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:07:35,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:35,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:07:35,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:35,612 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:35,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:35,648 INFO L93 Difference]: Finished difference Result 220 states and 313 transitions. [2024-11-08 17:07:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:07:35,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:07:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:35,651 INFO L225 Difference]: With dead ends: 220 [2024-11-08 17:07:35,651 INFO L226 Difference]: Without dead ends: 113 [2024-11-08 17:07:35,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:35,654 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:35,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:07:35,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-08 17:07:35,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2024-11-08 17:07:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:35,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 158 transitions. [2024-11-08 17:07:35,674 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 158 transitions. Word has length 136 [2024-11-08 17:07:35,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:35,679 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 158 transitions. [2024-11-08 17:07:35,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:35,679 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 158 transitions. [2024-11-08 17:07:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:35,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:35,682 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:35,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:07:35,685 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:35,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:35,686 INFO L85 PathProgramCache]: Analyzing trace with hash -627471518, now seen corresponding path program 1 times [2024-11-08 17:07:35,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:35,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318558160] [2024-11-08 17:07:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:35,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:36,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:36,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318558160] [2024-11-08 17:07:36,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318558160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:36,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:36,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:07:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149094400] [2024-11-08 17:07:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:36,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:07:36,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:07:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:07:36,564 INFO L87 Difference]: Start difference. First operand 112 states and 158 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:37,096 INFO L93 Difference]: Finished difference Result 332 states and 470 transitions. [2024-11-08 17:07:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:07:37,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:07:37,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:37,100 INFO L225 Difference]: With dead ends: 332 [2024-11-08 17:07:37,102 INFO L226 Difference]: Without dead ends: 223 [2024-11-08 17:07:37,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:07:37,105 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 130 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:37,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 519 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:07:37,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-08 17:07:37,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 123. [2024-11-08 17:07:37,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.3461538461538463) internal successors, (140), 104 states have internal predecessors, (140), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:37,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 174 transitions. [2024-11-08 17:07:37,135 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 174 transitions. Word has length 136 [2024-11-08 17:07:37,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:37,136 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 174 transitions. [2024-11-08 17:07:37,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:37,136 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 174 transitions. [2024-11-08 17:07:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:37,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:37,143 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:37,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:07:37,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:37,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:37,147 INFO L85 PathProgramCache]: Analyzing trace with hash -761485024, now seen corresponding path program 1 times [2024-11-08 17:07:37,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:37,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010908508] [2024-11-08 17:07:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:37,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:38,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:38,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010908508] [2024-11-08 17:07:38,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010908508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:38,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:07:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92247871] [2024-11-08 17:07:38,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:38,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:07:38,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:38,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:07:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:07:38,279 INFO L87 Difference]: Start difference. First operand 123 states and 174 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:39,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:39,416 INFO L93 Difference]: Finished difference Result 335 states and 472 transitions. [2024-11-08 17:07:39,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:07:39,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:07:39,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:39,419 INFO L225 Difference]: With dead ends: 335 [2024-11-08 17:07:39,420 INFO L226 Difference]: Without dead ends: 215 [2024-11-08 17:07:39,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:07:39,422 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 237 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:39,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 389 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:07:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-08 17:07:39,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 125. [2024-11-08 17:07:39,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 106 states have internal predecessors, (142), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:07:39,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2024-11-08 17:07:39,437 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 176 transitions. Word has length 136 [2024-11-08 17:07:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:39,441 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 176 transitions. [2024-11-08 17:07:39,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:07:39,441 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 176 transitions. [2024-11-08 17:07:39,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:39,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:39,444 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:39,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:07:39,444 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:39,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:39,446 INFO L85 PathProgramCache]: Analyzing trace with hash 164778217, now seen corresponding path program 1 times [2024-11-08 17:07:39,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:39,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552243562] [2024-11-08 17:07:39,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:39,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:07:41,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:41,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552243562] [2024-11-08 17:07:41,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552243562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:07:41,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833210082] [2024-11-08 17:07:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:41,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:41,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:41,693 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:07:41,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:07:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:42,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 17:07:42,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:07:42,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:07:42,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:07:42,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:07:42,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:42,599 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 55 treesize of output 35 [2024-11-08 17:07:42,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:42,781 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 42 treesize of output 47 [2024-11-08 17:07:42,889 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 149 treesize of output 113 [2024-11-08 17:07:42,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:42,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 113 treesize of output 151 [2024-11-08 17:07:43,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 86 [2024-11-08 17:07:43,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:43,630 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 181 treesize of output 67 [2024-11-08 17:07:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-08 17:07:43,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:07:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:07:44,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833210082] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:07:44,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:07:44,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 9] total 21 [2024-11-08 17:07:44,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489997241] [2024-11-08 17:07:44,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:07:44,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 17:07:44,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:44,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 17:07:44,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:07:44,330 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. Second operand has 21 states, 18 states have (on average 5.333333333333333) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-08 17:07:48,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:48,780 INFO L93 Difference]: Finished difference Result 465 states and 643 transitions. [2024-11-08 17:07:48,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-08 17:07:48,781 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 5.333333333333333) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) Word has length 136 [2024-11-08 17:07:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:48,784 INFO L225 Difference]: With dead ends: 465 [2024-11-08 17:07:48,784 INFO L226 Difference]: Without dead ends: 343 [2024-11-08 17:07:48,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 296 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=530, Invalid=2226, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 17:07:48,787 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 878 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:48,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1087 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 17:07:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-08 17:07:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 312. [2024-11-08 17:07:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 254 states have (on average 1.295275590551181) internal successors, (329), 257 states have internal predecessors, (329), 50 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 17:07:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 429 transitions. [2024-11-08 17:07:48,836 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 429 transitions. Word has length 136 [2024-11-08 17:07:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:48,837 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 429 transitions. [2024-11-08 17:07:48,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 5.333333333333333) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-08 17:07:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 429 transitions. [2024-11-08 17:07:48,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:48,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:48,840 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:48,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:07:49,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 17:07:49,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:49,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:49,046 INFO L85 PathProgramCache]: Analyzing trace with hash -196078334, now seen corresponding path program 1 times [2024-11-08 17:07:49,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:49,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108043450] [2024-11-08 17:07:49,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:49,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:07:50,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108043450] [2024-11-08 17:07:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108043450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:07:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391698863] [2024-11-08 17:07:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:50,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:50,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:50,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:07:50,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:07:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:50,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 17:07:51,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:07:51,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:07:51,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:07:51,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:51,205 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 55 treesize of output 53 [2024-11-08 17:07:51,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:51,353 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 57 treesize of output 68 [2024-11-08 17:07:51,455 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 164 treesize of output 124 [2024-11-08 17:07:51,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:51,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 124 treesize of output 182 [2024-11-08 17:07:51,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 72 [2024-11-08 17:07:51,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:51,928 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 211 treesize of output 73 [2024-11-08 17:07:51,966 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-08 17:07:51,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:07:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:07:52,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391698863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:07:52,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:07:52,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 19 [2024-11-08 17:07:52,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254622373] [2024-11-08 17:07:52,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:07:52,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 17:07:52,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:52,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 17:07:52,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:07:52,498 INFO L87 Difference]: Start difference. First operand 312 states and 429 transitions. Second operand has 19 states, 17 states have (on average 4.529411764705882) internal successors, (77), 19 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 17:07:56,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:56,443 INFO L93 Difference]: Finished difference Result 838 states and 1134 transitions. [2024-11-08 17:07:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 17:07:56,444 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.529411764705882) internal successors, (77), 19 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) Word has length 136 [2024-11-08 17:07:56,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:56,451 INFO L225 Difference]: With dead ends: 838 [2024-11-08 17:07:56,451 INFO L226 Difference]: Without dead ends: 550 [2024-11-08 17:07:56,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 294 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=315, Invalid=1245, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 17:07:56,454 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 607 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:56,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1032 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 17:07:56,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-08 17:07:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 274. [2024-11-08 17:07:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 225 states have (on average 1.2977777777777777) internal successors, (292), 227 states have internal predecessors, (292), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:07:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 372 transitions. [2024-11-08 17:07:56,521 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 372 transitions. Word has length 136 [2024-11-08 17:07:56,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:56,522 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 372 transitions. [2024-11-08 17:07:56,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.529411764705882) internal successors, (77), 19 states have internal predecessors, (77), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 17:07:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 372 transitions. [2024-11-08 17:07:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:07:56,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:56,526 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:56,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:07:56,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 17:07:56,727 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:56,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:56,728 INFO L85 PathProgramCache]: Analyzing trace with hash -330091840, now seen corresponding path program 1 times [2024-11-08 17:07:56,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:56,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588558700] [2024-11-08 17:07:56,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:56,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:07:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:07:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:07:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:07:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:07:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:07:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:07:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:07:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:07:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:07:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:07:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:07:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:07:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:07:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:07:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:07:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:07:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:07:58,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588558700] [2024-11-08 17:07:58,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588558700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:07:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746255718] [2024-11-08 17:07:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:58,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:58,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:58,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:07:58,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:07:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:58,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 17:07:58,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:07:58,823 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 112 treesize of output 83 [2024-11-08 17:07:58,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:58,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 41 [2024-11-08 17:07:58,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 42 treesize of output 43 [2024-11-08 17:07:59,147 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:07:59,148 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 269 treesize of output 113 [2024-11-08 17:07:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:07:59,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:07:59,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746255718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:59,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:07:59,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-08 17:07:59,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407278826] [2024-11-08 17:07:59,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:59,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:07:59,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:59,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:07:59,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:07:59,222 INFO L87 Difference]: Start difference. First operand 274 states and 372 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:00,390 INFO L93 Difference]: Finished difference Result 569 states and 774 transitions. [2024-11-08 17:08:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:08:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:08:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:00,394 INFO L225 Difference]: With dead ends: 569 [2024-11-08 17:08:00,394 INFO L226 Difference]: Without dead ends: 350 [2024-11-08 17:08:00,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:08:00,396 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 75 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:00,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 802 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:08:00,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-08 17:08:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 281. [2024-11-08 17:08:00,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 232 states have (on average 1.293103448275862) internal successors, (300), 234 states have internal predecessors, (300), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 380 transitions. [2024-11-08 17:08:00,447 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 380 transitions. Word has length 136 [2024-11-08 17:08:00,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:00,448 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 380 transitions. [2024-11-08 17:08:00,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:00,449 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 380 transitions. [2024-11-08 17:08:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 17:08:00,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:00,451 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:00,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 17:08:00,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:08:00,653 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:00,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:00,654 INFO L85 PathProgramCache]: Analyzing trace with hash -373748090, now seen corresponding path program 1 times [2024-11-08 17:08:00,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:00,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961098852] [2024-11-08 17:08:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:00,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:01,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:01,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961098852] [2024-11-08 17:08:01,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961098852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:01,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:01,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:01,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014198728] [2024-11-08 17:08:01,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:01,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:01,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:01,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:01,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:01,137 INFO L87 Difference]: Start difference. First operand 281 states and 380 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:01,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:01,853 INFO L93 Difference]: Finished difference Result 739 states and 1004 transitions. [2024-11-08 17:08:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:08:01,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-08 17:08:01,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:01,857 INFO L225 Difference]: With dead ends: 739 [2024-11-08 17:08:01,857 INFO L226 Difference]: Without dead ends: 513 [2024-11-08 17:08:01,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:08:01,859 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 131 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:01,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 973 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:08:01,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-08 17:08:01,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 293. [2024-11-08 17:08:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 244 states have (on average 1.2950819672131149) internal successors, (316), 246 states have internal predecessors, (316), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:01,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 396 transitions. [2024-11-08 17:08:01,913 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 396 transitions. Word has length 137 [2024-11-08 17:08:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:01,914 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 396 transitions. [2024-11-08 17:08:01,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 396 transitions. [2024-11-08 17:08:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 17:08:01,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:01,917 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:01,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:08:01,918 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:01,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash 671157591, now seen corresponding path program 1 times [2024-11-08 17:08:01,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:01,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764190540] [2024-11-08 17:08:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:03,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:03,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764190540] [2024-11-08 17:08:03,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764190540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:03,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:03,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:03,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908142792] [2024-11-08 17:08:03,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:03,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:03,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:03,504 INFO L87 Difference]: Start difference. First operand 293 states and 396 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:04,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:04,457 INFO L93 Difference]: Finished difference Result 693 states and 932 transitions. [2024-11-08 17:08:04,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:08:04,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-08 17:08:04,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:04,462 INFO L225 Difference]: With dead ends: 693 [2024-11-08 17:08:04,462 INFO L226 Difference]: Without dead ends: 455 [2024-11-08 17:08:04,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:08:04,464 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 106 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:04,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 788 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:08:04,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-08 17:08:04,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 293. [2024-11-08 17:08:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 244 states have (on average 1.2868852459016393) internal successors, (314), 246 states have internal predecessors, (314), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 394 transitions. [2024-11-08 17:08:04,517 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 394 transitions. Word has length 138 [2024-11-08 17:08:04,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:04,518 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 394 transitions. [2024-11-08 17:08:04,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 394 transitions. [2024-11-08 17:08:04,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 17:08:04,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:04,521 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:04,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:08:04,522 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:04,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1899273429, now seen corresponding path program 1 times [2024-11-08 17:08:04,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:04,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157699903] [2024-11-08 17:08:04,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:04,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:06,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157699903] [2024-11-08 17:08:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157699903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:06,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:06,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:08:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718267986] [2024-11-08 17:08:06,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:06,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:08:06,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:06,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:08:06,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:08:06,143 INFO L87 Difference]: Start difference. First operand 293 states and 394 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:06,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:06,811 INFO L93 Difference]: Finished difference Result 683 states and 914 transitions. [2024-11-08 17:08:06,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:08:06,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-08 17:08:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:06,816 INFO L225 Difference]: With dead ends: 683 [2024-11-08 17:08:06,816 INFO L226 Difference]: Without dead ends: 445 [2024-11-08 17:08:06,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:06,818 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 105 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:06,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 481 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:08:06,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-08 17:08:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 293. [2024-11-08 17:08:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 244 states have (on average 1.278688524590164) internal successors, (312), 246 states have internal predecessors, (312), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 392 transitions. [2024-11-08 17:08:06,877 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 392 transitions. Word has length 139 [2024-11-08 17:08:06,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:06,878 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 392 transitions. [2024-11-08 17:08:06,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:06,878 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 392 transitions. [2024-11-08 17:08:06,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 17:08:06,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:06,881 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:06,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:08:06,882 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:06,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash -690608302, now seen corresponding path program 1 times [2024-11-08 17:08:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:06,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575516469] [2024-11-08 17:08:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:06,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:07,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:07,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575516469] [2024-11-08 17:08:07,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575516469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:07,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:07,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:08:07,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266119254] [2024-11-08 17:08:07,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:07,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:08:07,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:07,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:08:07,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:08:07,852 INFO L87 Difference]: Start difference. First operand 293 states and 392 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:08,245 INFO L93 Difference]: Finished difference Result 531 states and 712 transitions. [2024-11-08 17:08:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:08:08,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-08 17:08:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:08,248 INFO L225 Difference]: With dead ends: 531 [2024-11-08 17:08:08,249 INFO L226 Difference]: Without dead ends: 293 [2024-11-08 17:08:08,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:08:08,250 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 185 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:08,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 171 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:08:08,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-08 17:08:08,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-08 17:08:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 244 states have (on average 1.2663934426229508) internal successors, (309), 246 states have internal predecessors, (309), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 389 transitions. [2024-11-08 17:08:08,308 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 389 transitions. Word has length 139 [2024-11-08 17:08:08,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:08,310 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 389 transitions. [2024-11-08 17:08:08,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:08,310 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 389 transitions. [2024-11-08 17:08:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:08,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:08,313 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:08,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:08:08,314 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:08,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1527706044, now seen corresponding path program 1 times [2024-11-08 17:08:08,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:08,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740412168] [2024-11-08 17:08:08,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:08,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:12,413 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:12,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:12,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740412168] [2024-11-08 17:08:12,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740412168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:12,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:12,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:08:12,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862022388] [2024-11-08 17:08:12,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:12,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:08:12,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:12,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:08:12,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:08:12,416 INFO L87 Difference]: Start difference. First operand 293 states and 389 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:13,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:13,523 INFO L93 Difference]: Finished difference Result 644 states and 852 transitions. [2024-11-08 17:08:13,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:08:13,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-08 17:08:13,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:13,528 INFO L225 Difference]: With dead ends: 644 [2024-11-08 17:08:13,529 INFO L226 Difference]: Without dead ends: 406 [2024-11-08 17:08:13,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:08:13,531 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 55 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:13,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 967 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:08:13,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-08 17:08:13,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 307. [2024-11-08 17:08:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 258 states have (on average 1.2674418604651163) internal successors, (327), 260 states have internal predecessors, (327), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:13,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 407 transitions. [2024-11-08 17:08:13,621 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 407 transitions. Word has length 140 [2024-11-08 17:08:13,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:13,622 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 407 transitions. [2024-11-08 17:08:13,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 407 transitions. [2024-11-08 17:08:13,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:13,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:13,626 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:13,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:08:13,626 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:13,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:13,627 INFO L85 PathProgramCache]: Analyzing trace with hash -60641858, now seen corresponding path program 1 times [2024-11-08 17:08:13,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:13,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965470211] [2024-11-08 17:08:13,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:13,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:14,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965470211] [2024-11-08 17:08:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965470211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:14,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:14,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:14,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756154019] [2024-11-08 17:08:14,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:14,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:14,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:14,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:14,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:14,290 INFO L87 Difference]: Start difference. First operand 307 states and 407 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:15,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:15,083 INFO L93 Difference]: Finished difference Result 769 states and 1015 transitions. [2024-11-08 17:08:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:08:15,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 17:08:15,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:15,088 INFO L225 Difference]: With dead ends: 769 [2024-11-08 17:08:15,088 INFO L226 Difference]: Without dead ends: 517 [2024-11-08 17:08:15,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:08:15,090 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 122 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:15,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 501 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:08:15,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-08 17:08:15,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 340. [2024-11-08 17:08:15,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 291 states have (on average 1.2646048109965635) internal successors, (368), 293 states have internal predecessors, (368), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 448 transitions. [2024-11-08 17:08:15,159 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 448 transitions. Word has length 140 [2024-11-08 17:08:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:15,160 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 448 transitions. [2024-11-08 17:08:15,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:15,160 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 448 transitions. [2024-11-08 17:08:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:15,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:15,162 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:15,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:08:15,163 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:15,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1950407870, now seen corresponding path program 1 times [2024-11-08 17:08:15,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:15,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192133561] [2024-11-08 17:08:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:15,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:15,685 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:15,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:15,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192133561] [2024-11-08 17:08:15,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192133561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:15,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:15,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:15,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548814607] [2024-11-08 17:08:15,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:15,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:15,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:15,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:15,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:15,688 INFO L87 Difference]: Start difference. First operand 340 states and 448 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:16,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:16,431 INFO L93 Difference]: Finished difference Result 786 states and 1034 transitions. [2024-11-08 17:08:16,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:08:16,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 17:08:16,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:16,435 INFO L225 Difference]: With dead ends: 786 [2024-11-08 17:08:16,436 INFO L226 Difference]: Without dead ends: 501 [2024-11-08 17:08:16,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:08:16,438 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 124 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:16,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 546 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:08:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-08 17:08:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 332. [2024-11-08 17:08:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 283 states have (on average 1.265017667844523) internal successors, (358), 285 states have internal predecessors, (358), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 438 transitions. [2024-11-08 17:08:16,503 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 438 transitions. Word has length 140 [2024-11-08 17:08:16,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:16,504 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 438 transitions. [2024-11-08 17:08:16,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 438 transitions. [2024-11-08 17:08:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:16,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:16,507 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:16,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:08:16,507 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:16,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:16,508 INFO L85 PathProgramCache]: Analyzing trace with hash -570114948, now seen corresponding path program 1 times [2024-11-08 17:08:16,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:16,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875907463] [2024-11-08 17:08:16,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:16,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:17,263 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:17,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875907463] [2024-11-08 17:08:17,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875907463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:17,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:17,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:08:17,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617396701] [2024-11-08 17:08:17,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:17,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:08:17,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:17,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:08:17,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:08:17,266 INFO L87 Difference]: Start difference. First operand 332 states and 438 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:18,130 INFO L93 Difference]: Finished difference Result 768 states and 1012 transitions. [2024-11-08 17:08:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:08:18,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 17:08:18,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:18,135 INFO L225 Difference]: With dead ends: 768 [2024-11-08 17:08:18,135 INFO L226 Difference]: Without dead ends: 491 [2024-11-08 17:08:18,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:08:18,137 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 310 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:18,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 304 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:08:18,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-08 17:08:18,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 296. [2024-11-08 17:08:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 247 states have (on average 1.2307692307692308) internal successors, (304), 249 states have internal predecessors, (304), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:18,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 384 transitions. [2024-11-08 17:08:18,209 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 384 transitions. Word has length 140 [2024-11-08 17:08:18,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:18,210 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 384 transitions. [2024-11-08 17:08:18,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:18,211 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 384 transitions. [2024-11-08 17:08:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:18,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:18,214 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:18,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:08:18,214 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:18,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1440934780, now seen corresponding path program 1 times [2024-11-08 17:08:18,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:18,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734380047] [2024-11-08 17:08:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:18,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:18,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:18,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734380047] [2024-11-08 17:08:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734380047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:18,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:18,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:18,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219991415] [2024-11-08 17:08:18,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:18,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:18,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:18,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:18,871 INFO L87 Difference]: Start difference. First operand 296 states and 384 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:19,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:19,737 INFO L93 Difference]: Finished difference Result 680 states and 886 transitions. [2024-11-08 17:08:19,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:08:19,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 17:08:19,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:19,741 INFO L225 Difference]: With dead ends: 680 [2024-11-08 17:08:19,741 INFO L226 Difference]: Without dead ends: 439 [2024-11-08 17:08:19,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:08:19,743 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 269 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:19,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 368 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:08:19,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-08 17:08:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 263. [2024-11-08 17:08:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 214 states have (on average 1.219626168224299) internal successors, (261), 216 states have internal predecessors, (261), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:19,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 341 transitions. [2024-11-08 17:08:19,800 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 341 transitions. Word has length 140 [2024-11-08 17:08:19,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:19,801 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 341 transitions. [2024-11-08 17:08:19,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 341 transitions. [2024-11-08 17:08:19,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:19,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:19,803 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:19,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:08:19,804 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:19,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1392122064, now seen corresponding path program 1 times [2024-11-08 17:08:19,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:19,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933723578] [2024-11-08 17:08:19,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:19,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:20,743 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:08:20,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:20,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933723578] [2024-11-08 17:08:20,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933723578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:08:20,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134487756] [2024-11-08 17:08:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:20,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:08:20,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:08:20,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:08:20,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:08:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:21,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-08 17:08:21,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:21,392 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 15 treesize of output 1 [2024-11-08 17:08:21,492 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 23 treesize of output 11 [2024-11-08 17:08:21,581 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 23 treesize of output 11 [2024-11-08 17:08:21,661 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 23 treesize of output 11 [2024-11-08 17:08:21,754 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 23 treesize of output 11 [2024-11-08 17:08:21,840 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 23 treesize of output 11 [2024-11-08 17:08:21,918 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 23 treesize of output 11 [2024-11-08 17:08:21,996 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 23 treesize of output 11 [2024-11-08 17:08:22,078 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 23 treesize of output 11 [2024-11-08 17:08:22,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11 [2024-11-08 17:08:22,212 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 42 treesize of output 28 [2024-11-08 17:08:22,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 48 [2024-11-08 17:08:22,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2024-11-08 17:08:22,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:22,696 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 60 treesize of output 28 [2024-11-08 17:08:22,730 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:22,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:08:22,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134487756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:22,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:08:22,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2024-11-08 17:08:22,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871052898] [2024-11-08 17:08:22,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:22,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:08:22,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:22,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:08:22,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:08:22,734 INFO L87 Difference]: Start difference. First operand 263 states and 341 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:23,503 INFO L93 Difference]: Finished difference Result 473 states and 611 transitions. [2024-11-08 17:08:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:08:23,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 17:08:23,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:23,507 INFO L225 Difference]: With dead ends: 473 [2024-11-08 17:08:23,511 INFO L226 Difference]: Without dead ends: 265 [2024-11-08 17:08:23,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:08:23,513 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 309 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:23,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 376 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:08:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-08 17:08:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2024-11-08 17:08:23,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 214 states have (on average 1.2149532710280373) internal successors, (260), 216 states have internal predecessors, (260), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 340 transitions. [2024-11-08 17:08:23,657 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 340 transitions. Word has length 140 [2024-11-08 17:08:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:23,657 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 340 transitions. [2024-11-08 17:08:23,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:23,658 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 340 transitions. [2024-11-08 17:08:23,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:23,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:23,659 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:23,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:08:23,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:08:23,864 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:23,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:23,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1936890833, now seen corresponding path program 1 times [2024-11-08 17:08:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:23,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844578132] [2024-11-08 17:08:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:23,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:24,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:24,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844578132] [2024-11-08 17:08:24,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844578132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:24,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:24,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:24,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903886221] [2024-11-08 17:08:24,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:24,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:24,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:24,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:24,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:24,465 INFO L87 Difference]: Start difference. First operand 263 states and 340 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:24,954 INFO L93 Difference]: Finished difference Result 271 states and 349 transitions. [2024-11-08 17:08:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:08:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 17:08:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:24,957 INFO L225 Difference]: With dead ends: 271 [2024-11-08 17:08:24,957 INFO L226 Difference]: Without dead ends: 269 [2024-11-08 17:08:24,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:08:24,959 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 77 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:24,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 550 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:08:24,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-08 17:08:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2024-11-08 17:08:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 220 states have (on average 1.209090909090909) internal successors, (266), 222 states have internal predecessors, (266), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 346 transitions. [2024-11-08 17:08:25,018 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 346 transitions. Word has length 140 [2024-11-08 17:08:25,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:25,019 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 346 transitions. [2024-11-08 17:08:25,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 346 transitions. [2024-11-08 17:08:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:25,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:25,021 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:25,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 17:08:25,022 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:25,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:25,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1938737875, now seen corresponding path program 1 times [2024-11-08 17:08:25,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:25,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230738171] [2024-11-08 17:08:25,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:25,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:26,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230738171] [2024-11-08 17:08:26,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230738171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:26,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:26,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543060543] [2024-11-08 17:08:26,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:26,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:26,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:26,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:26,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:26,308 INFO L87 Difference]: Start difference. First operand 269 states and 346 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:26,858 INFO L93 Difference]: Finished difference Result 641 states and 816 transitions. [2024-11-08 17:08:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:08:26,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-08 17:08:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:26,863 INFO L225 Difference]: With dead ends: 641 [2024-11-08 17:08:26,863 INFO L226 Difference]: Without dead ends: 427 [2024-11-08 17:08:26,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:08:26,864 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:26,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 397 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:08:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-08 17:08:26,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 422. [2024-11-08 17:08:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 353 states have (on average 1.2011331444759208) internal successors, (424), 357 states have internal predecessors, (424), 56 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (56), 52 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 17:08:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 536 transitions. [2024-11-08 17:08:26,979 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 536 transitions. Word has length 140 [2024-11-08 17:08:26,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:26,980 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 536 transitions. [2024-11-08 17:08:26,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 536 transitions. [2024-11-08 17:08:26,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:08:26,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:26,982 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:26,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 17:08:26,983 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:26,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:26,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1351931861, now seen corresponding path program 1 times [2024-11-08 17:08:26,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:26,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006812120] [2024-11-08 17:08:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:26,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:08:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:08:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:08:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:08:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:08:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:08:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:08:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:08:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:08:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:08:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:08:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:08:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:08:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:08:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:27,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:08:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:28,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:08:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:28,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 17:08:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:08:28,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:28,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006812120] [2024-11-08 17:08:28,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006812120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:08:28,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626250668] [2024-11-08 17:08:28,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:28,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:08:28,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:08:28,010 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:08:28,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:08:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:28,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 17:08:28,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:28,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:08:28,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:08:28,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-08 17:08:28,731 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:28,731 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 55 treesize of output 53 [2024-11-08 17:08:28,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:28,799 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 73 treesize of output 31 [2024-11-08 17:08:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-08 17:08:28,815 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:08:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 17:08:29,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626250668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:08:29,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:08:29,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 12 [2024-11-08 17:08:29,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123669118] [2024-11-08 17:08:29,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:08:29,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:08:29,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:29,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:08:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:08:29,119 INFO L87 Difference]: Start difference. First operand 422 states and 536 transitions. Second operand has 12 states, 9 states have (on average 7.888888888888889) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-08 17:08:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:30,951 INFO L93 Difference]: Finished difference Result 623 states and 791 transitions. [2024-11-08 17:08:30,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:08:30,952 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.888888888888889) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) Word has length 140 [2024-11-08 17:08:30,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:30,954 INFO L225 Difference]: With dead ends: 623 [2024-11-08 17:08:30,955 INFO L226 Difference]: Without dead ends: 260 [2024-11-08 17:08:30,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 308 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:08:30,957 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 168 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:30,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 472 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 17:08:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-08 17:08:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 256. [2024-11-08 17:08:31,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 206 states have (on average 1.1893203883495145) internal successors, (245), 208 states have internal predecessors, (245), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 17:08:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 325 transitions. [2024-11-08 17:08:31,028 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 325 transitions. Word has length 140 [2024-11-08 17:08:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:31,028 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 325 transitions. [2024-11-08 17:08:31,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.888888888888889) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-08 17:08:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 325 transitions. [2024-11-08 17:08:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:08:31,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:31,030 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:31,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 17:08:31,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-08 17:08:31,231 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:31,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1164117676, now seen corresponding path program 1 times [2024-11-08 17:08:31,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:31,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031176470] [2024-11-08 17:08:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:31,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:08:31,417 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:08:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:08:31,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:08:31,598 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:08:31,601 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:08:31,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 17:08:31,609 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:31,729 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:08:31,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:08:31 BoogieIcfgContainer [2024-11-08 17:08:31,735 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:08:31,736 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:08:31,736 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:08:31,736 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:08:31,737 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:07:32" (3/4) ... [2024-11-08 17:08:31,741 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:08:31,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:08:31,743 INFO L158 Benchmark]: Toolchain (without parser) took 61833.39ms. Allocated memory was 125.8MB in the beginning and 784.3MB in the end (delta: 658.5MB). Free memory was 92.4MB in the beginning and 311.4MB in the end (delta: -219.0MB). Peak memory consumption was 441.4MB. Max. memory is 16.1GB. [2024-11-08 17:08:31,744 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:08:31,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.39ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 74.3MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 17:08:31,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.31ms. Allocated memory is still 125.8MB. Free memory was 74.3MB in the beginning and 70.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:08:31,745 INFO L158 Benchmark]: Boogie Preprocessor took 77.16ms. Allocated memory is still 125.8MB. Free memory was 70.5MB in the beginning and 67.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:08:31,746 INFO L158 Benchmark]: RCFGBuilder took 1382.01ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 67.0MB in the beginning and 121.4MB in the end (delta: -54.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-11-08 17:08:31,746 INFO L158 Benchmark]: TraceAbstraction took 59717.12ms. Allocated memory was 178.3MB in the beginning and 784.3MB in the end (delta: 606.1MB). Free memory was 120.4MB in the beginning and 311.4MB in the end (delta: -191.0MB). Peak memory consumption was 414.0MB. Max. memory is 16.1GB. [2024-11-08 17:08:31,746 INFO L158 Benchmark]: Witness Printer took 7.30ms. Allocated memory is still 784.3MB. Free memory is still 311.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:08:31,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.39ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 74.3MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.31ms. Allocated memory is still 125.8MB. Free memory was 74.3MB in the beginning and 70.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.16ms. Allocated memory is still 125.8MB. Free memory was 70.5MB in the beginning and 67.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1382.01ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 67.0MB in the beginning and 121.4MB in the end (delta: -54.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 59717.12ms. Allocated memory was 178.3MB in the beginning and 784.3MB in the end (delta: 606.1MB). Free memory was 120.4MB in the beginning and 311.4MB in the end (delta: -191.0MB). Peak memory consumption was 414.0MB. Max. memory is 16.1GB. * Witness Printer took 7.30ms. Allocated memory is still 784.3MB. Free memory is still 311.4MB. 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 120. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 16, 32, 20113, 100, 100, -1, 16, 1, 0, 1, 10, 256, 32.5, 127.4, 128 }; VAL [WrapperStruct00={4:0}, isInitial=0] [L124] isInitial = 1 [L125] FCALL initially() [L126] COND TRUE 1 [L127] FCALL updateLastVariables() [L128] CALL updateVariables() [L90] WrapperStruct00.var_1_7 = __VERIFIER_nondet_short() [L91] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1] [L92] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] WrapperStruct00.var_1_8 = __VERIFIER_nondet_short() [L94] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] WrapperStruct00.var_1_9 = __VERIFIER_nondet_short() [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] WrapperStruct00.var_1_11 = __VERIFIER_nondet_char() [L100] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L103] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1] [L104] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] WrapperStruct00.var_1_15 = __VERIFIER_nondet_uchar() [L106] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L109] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L109] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L110] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L111] WrapperStruct00.var_1_19 = __VERIFIER_nondet_ushort() [L112] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L112] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L112] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L113] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1] [L114] WrapperStruct00.var_1_21 = __VERIFIER_nondet_float() [L115] EXPR WrapperStruct00.var_1_21 [L115] EXPR WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F [L115] EXPR WrapperStruct00.var_1_21 [L115] EXPR WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] CALL assume_abort_if_not((WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L115] RET assume_abort_if_not((WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L128] RET updateVariables() [L129] CALL step() [L60] EXPR WrapperStruct00.var_1_19 [L60] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_19 [L61] EXPR WrapperStruct00.var_1_21 [L61] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_21 [L62] EXPR WrapperStruct00.var_1_12 [L62] WrapperStruct00.var_1_22 = WrapperStruct00.var_1_12 [L63] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1] [L63] COND FALSE !(127.5f > WrapperStruct00.var_1_20) [L66] EXPR WrapperStruct00.var_1_20 [L66] EXPR WrapperStruct00.var_1_20 [L66] EXPR (WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L66] WrapperStruct00.var_1_13 = ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15) [L68] EXPR WrapperStruct00.var_1_18 [L68] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L68] COND TRUE WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7 [L69] EXPR WrapperStruct00.var_1_11 [L69] EXPR WrapperStruct00.var_1_12 [L69] WrapperStruct00.var_1_10 = (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)) [L77] WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L77] COND TRUE WrapperStruct00.var_1_13 [L78] EXPR WrapperStruct00.var_1_10 [L78] EXPR WrapperStruct00.var_1_22 VAL [WrapperStruct00={4:0}, isInitial=1] [L78] COND FALSE !(WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) [L85] WrapperStruct00.var_1_1 = 8 VAL [WrapperStruct00={4:0}, isInitial=1] [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1 [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_22 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8)) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR (WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1)) [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1) [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_11 [L120] EXPR WrapperStruct00.var_1_12 [L120] EXPR (WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR ((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15)))) [L120] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))) [L120] EXPR WrapperStruct00.var_1_13 [L120] EXPR WrapperStruct00.var_1_15 [L120] EXPR WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16 [L120] EXPR WrapperStruct00.var_1_16 [L120] EXPR WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR ((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15)))) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19)) [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR WrapperStruct00.var_1_19 [L120] EXPR (((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR ((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21)) [L120] EXPR WrapperStruct00.var_1_20 [L120] EXPR WrapperStruct00.var_1_21 [L120] EXPR ((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21))) && (WrapperStruct00.var_1_22 == ((signed short int) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120-L121] return (((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21))) && (WrapperStruct00.var_1_22 == ((signed short int) WrapperStruct00.var_1_12)) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.5s, OverallIterations: 24, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 22.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4084 SdHoareTripleChecker+Valid, 17.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4042 mSDsluCounter, 12600 SdHoareTripleChecker+Invalid, 15.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9374 mSDsCounter, 1090 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8708 IncrementalHoareTripleChecker+Invalid, 9798 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1090 mSolverCounterUnsat, 3226 mSDtfsCounter, 8708 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2202 GetRequests, 1962 SyntacticMatches, 19 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=422occurred in iteration=22, InterpolantAutomatonStates: 199, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 1930 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 28.5s InterpolantComputationTime, 4000 NumberOfCodeBlocks, 4000 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 4238 ConstructedInterpolants, 0 QuantifiedInterpolants, 13386 SizeOfPredicates, 25 NumberOfNonLiveVariables, 2524 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 31 InterpolantComputations, 20 PerfectInterpolantSequences, 16684/16864 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 17:08:31,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX --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 e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:08:34,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:08:34,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 17:08:34,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:08:34,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:08:34,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:08:34,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:08:34,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:08:34,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:08:34,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:08:34,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:08:34,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:08:34,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:08:34,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:08:34,927 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:08:34,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:08:34,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:08:34,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:08:34,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:08:34,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:08:34,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:08:34,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:08:34,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:08:34,931 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:08:34,932 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:08:34,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:08:34,933 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:08:34,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:08:34,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:08:34,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:08:34,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:08:34,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:08:34,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:08:34,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:08:34,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:08:34,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:08:34,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:08:34,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:08:34,937 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:08:34,938 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:08:34,938 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:08:34,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:08:34,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:08:34,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:08:34,940 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d [2024-11-08 17:08:35,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:08:35,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:08:35,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:08:35,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:08:35,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:08:35,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i Unable to find full path for "g++" [2024-11-08 17:08:38,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:08:38,404 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:08:38,409 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2024-11-08 17:08:38,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data/2545d8573/fd91e9312f5d4a0ab0c8034472ed193d/FLAGdb8ef2b52 [2024-11-08 17:08:38,452 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/data/2545d8573/fd91e9312f5d4a0ab0c8034472ed193d [2024-11-08 17:08:38,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:08:38,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:08:38,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:08:38,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:08:38,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:08:38,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:08:38" (1/1) ... [2024-11-08 17:08:38,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba5c43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:38, skipping insertion in model container [2024-11-08 17:08:38,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:08:38" (1/1) ... [2024-11-08 17:08:38,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:08:38,810 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_505da961-1cda-455c-a709-17da57ae1f9c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-11-08 17:08:38,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:08:38,945 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:08:38,965 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_505da961-1cda-455c-a709-17da57ae1f9c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-11-08 17:08:39,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:08:39,079 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:08:39,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39 WrapperNode [2024-11-08 17:08:39,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:08:39,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:08:39,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:08:39,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:08:39,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,180 INFO L138 Inliner]: procedures = 34, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 407 [2024-11-08 17:08:39,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:08:39,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:08:39,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:08:39,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:08:39,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,208 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,244 INFO L175 MemorySlicer]: Split 117 memory accesses to 2 slices as follows [2, 115]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 35 writes are split as follows [0, 35]. [2024-11-08 17:08:39,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:08:39,297 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:08:39,297 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:08:39,297 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:08:39,298 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:08:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:08:39,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:08:39,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:08:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:08:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 17:08:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 17:08:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:08:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 17:08:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 17:08:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 17:08:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-08 17:08:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-08 17:08:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 17:08:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 17:08:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-08 17:08:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-08 17:08:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-08 17:08:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-08 17:08:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:08:39,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:08:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-08 17:08:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-08 17:08:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:08:39,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:08:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 17:08:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 17:08:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-08 17:08:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-08 17:08:39,574 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:08:39,577 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:08:40,456 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-11-08 17:08:40,457 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:08:40,484 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:08:40,484 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:08:40,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:08:40 BoogieIcfgContainer [2024-11-08 17:08:40,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:08:40,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:08:40,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:08:40,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:08:40,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:08:38" (1/3) ... [2024-11-08 17:08:40,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ab25d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:08:40, skipping insertion in model container [2024-11-08 17:08:40,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (2/3) ... [2024-11-08 17:08:40,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ab25d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:08:40, skipping insertion in model container [2024-11-08 17:08:40,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:08:40" (3/3) ... [2024-11-08 17:08:40,499 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-97.i [2024-11-08 17:08:40,523 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:08:40,523 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:08:40,645 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:08:40,657 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;@730d01de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:08:40,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:08:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:08:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 17:08:40,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:40,689 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:40,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:40,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash 941616531, now seen corresponding path program 1 times [2024-11-08 17:08:40,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:08:40,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021913175] [2024-11-08 17:08:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:40,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:40,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:08:40,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:08:40,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:41,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 17:08:41,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-08 17:08:41,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:08:41,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:08:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021913175] [2024-11-08 17:08:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021913175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:41,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:41,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:08:41,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421562278] [2024-11-08 17:08:41,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:41,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:08:41,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:41,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:08:41,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:08:41,369 INFO L87 Difference]: Start difference. First operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:41,412 INFO L93 Difference]: Finished difference Result 193 states and 301 transitions. [2024-11-08 17:08:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:08:41,416 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-08 17:08:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:41,427 INFO L225 Difference]: With dead ends: 193 [2024-11-08 17:08:41,427 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 17:08:41,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:08:41,436 INFO L432 NwaCegarLoop]: 138 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, 138 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 [2024-11-08 17:08:41,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 17:08:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 17:08:41,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:08:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-08 17:08:41,498 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 134 [2024-11-08 17:08:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:41,499 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-08 17:08:41,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:08:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-08 17:08:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 17:08:41,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:41,504 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:41,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:41,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:41,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:41,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:41,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1087633521, now seen corresponding path program 1 times [2024-11-08 17:08:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:08:41,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259177495] [2024-11-08 17:08:41,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:41,711 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 [2024-11-08 17:08:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:08:41,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:08:41,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:42,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:08:42,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:42,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:08:42,236 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:08:42,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259177495] [2024-11-08 17:08:42,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259177495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:42,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:42,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:08:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820094200] [2024-11-08 17:08:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:42,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:08:42,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:42,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:08:42,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:08:42,242 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:42,324 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2024-11-08 17:08:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:08:42,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-08 17:08:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:42,331 INFO L225 Difference]: With dead ends: 191 [2024-11-08 17:08:42,331 INFO L226 Difference]: Without dead ends: 98 [2024-11-08 17:08:42,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:08:42,334 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:42,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:42,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-08 17:08:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-08 17:08:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:08:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2024-11-08 17:08:42,371 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 134 [2024-11-08 17:08:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:42,377 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2024-11-08 17:08:42,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2024-11-08 17:08:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:08:42,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:42,383 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:42,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:42,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:42,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:42,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash 622963779, now seen corresponding path program 1 times [2024-11-08 17:08:42,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:08:42,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219722642] [2024-11-08 17:08:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:42,591 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 [2024-11-08 17:08:42,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:08:42,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:08:42,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:43,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:08:43,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:43,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:08:43,185 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:08:43,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219722642] [2024-11-08 17:08:43,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219722642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:43,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:43,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:08:43,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501987349] [2024-11-08 17:08:43,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:43,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:08:43,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:43,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:08:43,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:08:43,191 INFO L87 Difference]: Start difference. First operand 98 states and 140 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:44,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:44,271 INFO L93 Difference]: Finished difference Result 274 states and 391 transitions. [2024-11-08 17:08:44,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:08:44,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:08:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:44,276 INFO L225 Difference]: With dead ends: 274 [2024-11-08 17:08:44,276 INFO L226 Difference]: Without dead ends: 179 [2024-11-08 17:08:44,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:44,279 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 101 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:44,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 500 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:08:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-08 17:08:44,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 100. [2024-11-08 17:08:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 81 states have internal predecessors, (108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:08:44,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-11-08 17:08:44,308 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 136 [2024-11-08 17:08:44,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:44,309 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-11-08 17:08:44,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:44,310 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-11-08 17:08:44,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:08:44,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:44,313 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:44,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:44,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:44,515 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:44,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1549227020, now seen corresponding path program 1 times [2024-11-08 17:08:44,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:08:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831154815] [2024-11-08 17:08:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:44,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:44,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:08:44,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:08:44,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:44,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:08:44,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:44,928 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:08:44,931 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:08:44,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831154815] [2024-11-08 17:08:44,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831154815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:44,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:44,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:08:44,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877656135] [2024-11-08 17:08:44,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:44,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:08:44,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:44,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:08:44,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:08:44,937 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:44,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:44,987 INFO L93 Difference]: Finished difference Result 200 states and 285 transitions. [2024-11-08 17:08:44,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:08:44,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:08:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:44,994 INFO L225 Difference]: With dead ends: 200 [2024-11-08 17:08:44,994 INFO L226 Difference]: Without dead ends: 103 [2024-11-08 17:08:44,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:08:44,997 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 1 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:44,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 394 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-08 17:08:45,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2024-11-08 17:08:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:08:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2024-11-08 17:08:45,018 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 136 [2024-11-08 17:08:45,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:45,021 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 144 transitions. [2024-11-08 17:08:45,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:45,022 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions. [2024-11-08 17:08:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:08:45,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:45,027 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:45,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:45,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:45,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:45,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2065681906, now seen corresponding path program 1 times [2024-11-08 17:08:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:08:45,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315470542] [2024-11-08 17:08:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:45,231 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 [2024-11-08 17:08:45,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:08:45,233 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:08:45,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:45,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:08:45,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:08:45,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:08:45,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:08:45,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315470542] [2024-11-08 17:08:45,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315470542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:45,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:45,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:08:45,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808531440] [2024-11-08 17:08:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:45,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:08:45,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:45,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:08:45,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:45,637 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:45,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:45,740 INFO L93 Difference]: Finished difference Result 206 states and 292 transitions. [2024-11-08 17:08:45,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:08:45,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:08:45,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:45,744 INFO L225 Difference]: With dead ends: 206 [2024-11-08 17:08:45,746 INFO L226 Difference]: Without dead ends: 107 [2024-11-08 17:08:45,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:08:45,749 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:45,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 640 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:08:45,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-08 17:08:45,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-11-08 17:08:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 87 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 17:08:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 148 transitions. [2024-11-08 17:08:45,774 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 148 transitions. Word has length 136 [2024-11-08 17:08:45,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:45,775 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 148 transitions. [2024-11-08 17:08:45,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:08:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 148 transitions. [2024-11-08 17:08:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:08:45,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:45,778 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:45,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:45,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:45,979 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:45,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:45,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2063834864, now seen corresponding path program 1 times [2024-11-08 17:08:45,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:08:45,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584476818] [2024-11-08 17:08:45,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:45,982 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 [2024-11-08 17:08:45,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:08:45,986 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:08:45,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:46,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 17:08:46,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:46,466 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 [2024-11-08 17:08:46,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 17:08:46,860 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 42 treesize of output 20 [2024-11-08 17:08:46,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:46,990 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 69 treesize of output 61 [2024-11-08 17:08:47,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:47,381 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 77 [2024-11-08 17:08:47,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:47,635 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 80 [2024-11-08 17:08:47,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:47,709 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 78 treesize of output 30 [2024-11-08 17:08:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 17:08:47,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:08:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 17:08:48,539 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:08:48,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584476818] [2024-11-08 17:08:48,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584476818] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:08:48,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:08:48,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2024-11-08 17:08:48,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133284379] [2024-11-08 17:08:48,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:08:48,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 17:08:48,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:48,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 17:08:48,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:08:48,543 INFO L87 Difference]: Start difference. First operand 106 states and 148 transitions. Second operand has 21 states, 17 states have (on average 4.882352941176471) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:08:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:55,126 INFO L93 Difference]: Finished difference Result 358 states and 486 transitions. [2024-11-08 17:08:55,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-08 17:08:55,128 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 4.882352941176471) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) Word has length 136 [2024-11-08 17:08:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:55,130 INFO L225 Difference]: With dead ends: 358 [2024-11-08 17:08:55,131 INFO L226 Difference]: Without dead ends: 255 [2024-11-08 17:08:55,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=406, Invalid=1664, Unknown=0, NotChecked=0, Total=2070 [2024-11-08 17:08:55,133 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 457 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:55,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 854 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 17:08:55,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-08 17:08:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 240. [2024-11-08 17:08:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 189 states have (on average 1.2645502645502646) internal successors, (239), 191 states have internal predecessors, (239), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-08 17:08:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 323 transitions. [2024-11-08 17:08:55,186 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 323 transitions. Word has length 136 [2024-11-08 17:08:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:55,187 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 323 transitions. [2024-11-08 17:08:55,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 4.882352941176471) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:08:55,188 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 323 transitions. [2024-11-08 17:08:55,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:08:55,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:55,191 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:55,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:08:55,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:08:55,392 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:55,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:55,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2097118926, now seen corresponding path program 1 times [2024-11-08 17:08:55,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:08:55,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114091710] [2024-11-08 17:08:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:55,395 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 [2024-11-08 17:08:55,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:08:55,399 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:08:55,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:08:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:55,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 17:08:55,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:08:55,810 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 [2024-11-08 17:08:56,112 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 [2024-11-08 17:08:56,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:56,448 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 [2024-11-08 17:08:56,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:56,661 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 [2024-11-08 17:08:56,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:56,854 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 79 treesize of output 74 [2024-11-08 17:08:57,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:08:57,068 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 95 treesize of output 41 [2024-11-08 17:08:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 30 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-08 17:08:57,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:08:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 17:08:57,641 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:08:57,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114091710] [2024-11-08 17:08:57,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114091710] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:08:57,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:08:57,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 17 [2024-11-08 17:08:57,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369443904] [2024-11-08 17:08:57,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:08:57,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:08:57,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:08:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:08:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:08:57,649 INFO L87 Difference]: Start difference. First operand 240 states and 323 transitions. Second operand has 17 states, 13 states have (on average 6.076923076923077) internal successors, (79), 16 states have internal predecessors, (79), 7 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-08 17:09:00,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:00,932 INFO L93 Difference]: Finished difference Result 484 states and 640 transitions. [2024-11-08 17:09:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 17:09:00,934 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 6.076923076923077) internal successors, (79), 16 states have internal predecessors, (79), 7 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) Word has length 136 [2024-11-08 17:09:00,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:00,942 INFO L225 Difference]: With dead ends: 484 [2024-11-08 17:09:00,946 INFO L226 Difference]: Without dead ends: 264 [2024-11-08 17:09:00,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-08 17:09:00,948 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 94 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:00,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 452 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 17:09:00,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-08 17:09:01,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 259. [2024-11-08 17:09:01,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 202 states have (on average 1.2425742574257426) internal successors, (251), 204 states have internal predecessors, (251), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 17:09:01,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 339 transitions. [2024-11-08 17:09:01,015 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 339 transitions. Word has length 136 [2024-11-08 17:09:01,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:01,016 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 339 transitions. [2024-11-08 17:09:01,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 6.076923076923077) internal successors, (79), 16 states have internal predecessors, (79), 7 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-08 17:09:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 339 transitions. [2024-11-08 17:09:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:09:01,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:01,021 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:01,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-08 17:09:01,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:01,223 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:01,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1568964807, now seen corresponding path program 1 times [2024-11-08 17:09:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478117672] [2024-11-08 17:09:01,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:01,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:01,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:01,226 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:01,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:01,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:09:01,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:01,616 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 [2024-11-08 17:09:01,646 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 [2024-11-08 17:09:01,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-08 17:09:01,674 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:09:01,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:09:01,675 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:01,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478117672] [2024-11-08 17:09:01,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478117672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:01,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:01,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:09:01,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032759871] [2024-11-08 17:09:01,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:01,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:09:01,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:09:01,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:09:01,678 INFO L87 Difference]: Start difference. First operand 259 states and 339 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:02,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:02,478 INFO L93 Difference]: Finished difference Result 656 states and 847 transitions. [2024-11-08 17:09:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:09:02,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-08 17:09:02,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:02,483 INFO L225 Difference]: With dead ends: 656 [2024-11-08 17:09:02,485 INFO L226 Difference]: Without dead ends: 421 [2024-11-08 17:09:02,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:09:02,487 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 117 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:02,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 494 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:09:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-08 17:09:02,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 193. [2024-11-08 17:09:02,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 147 states have (on average 1.217687074829932) internal successors, (179), 148 states have internal predecessors, (179), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:09:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2024-11-08 17:09:02,566 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 136 [2024-11-08 17:09:02,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:02,567 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2024-11-08 17:09:02,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2024-11-08 17:09:02,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:09:02,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:02,569 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:02,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:02,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:02,771 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:02,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1702978313, now seen corresponding path program 1 times [2024-11-08 17:09:02,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:02,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019374503] [2024-11-08 17:09:02,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:02,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:02,777 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:02,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:03,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 17:09:03,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:03,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 17:09:03,494 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 [2024-11-08 17:09:03,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:03,783 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 [2024-11-08 17:09:04,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:04,166 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 [2024-11-08 17:09:04,395 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:04,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 57 [2024-11-08 17:09:04,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:04,735 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 69 treesize of output 71 [2024-11-08 17:09:04,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:04,923 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 84 treesize of output 74 [2024-11-08 17:09:05,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:05,005 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 75 treesize of output 33 [2024-11-08 17:09:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 308 proven. 30 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-08 17:09:05,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:09:05,683 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 17:09:05,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:05,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019374503] [2024-11-08 17:09:05,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019374503] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:09:05,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:09:05,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 23 [2024-11-08 17:09:05,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602783587] [2024-11-08 17:09:05,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:09:05,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:09:05,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:05,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:09:05,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:09:05,687 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 23 states, 19 states have (on average 4.631578947368421) internal successors, (88), 22 states have internal predecessors, (88), 8 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-08 17:09:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:11,845 INFO L93 Difference]: Finished difference Result 457 states and 583 transitions. [2024-11-08 17:09:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-08 17:09:11,847 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 4.631578947368421) internal successors, (88), 22 states have internal predecessors, (88), 8 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) Word has length 136 [2024-11-08 17:09:11,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:11,850 INFO L225 Difference]: With dead ends: 457 [2024-11-08 17:09:11,850 INFO L226 Difference]: Without dead ends: 327 [2024-11-08 17:09:11,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=551, Invalid=2205, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 17:09:11,853 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 496 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:11,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 954 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 17:09:11,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-08 17:09:11,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 155. [2024-11-08 17:09:11,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 118 states have (on average 1.2118644067796611) internal successors, (143), 119 states have internal predecessors, (143), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:09:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 199 transitions. [2024-11-08 17:09:11,892 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 199 transitions. Word has length 136 [2024-11-08 17:09:11,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:11,894 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 199 transitions. [2024-11-08 17:09:11,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 4.631578947368421) internal successors, (88), 22 states have internal predecessors, (88), 8 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-08 17:09:11,895 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 199 transitions. [2024-11-08 17:09:11,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 17:09:11,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:11,898 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:11,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:09:12,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:12,099 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:12,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:12,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1416944194, now seen corresponding path program 1 times [2024-11-08 17:09:12,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:12,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140276475] [2024-11-08 17:09:12,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:12,101 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 [2024-11-08 17:09:12,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:12,105 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:12,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:12,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:09:12,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:12,433 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 [2024-11-08 17:09:12,485 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 37 treesize of output 25 [2024-11-08 17:09:12,528 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:09:12,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:09:12,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:12,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140276475] [2024-11-08 17:09:12,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140276475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:12,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:12,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:09:12,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447451460] [2024-11-08 17:09:12,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:12,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:09:12,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:12,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:09:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:09:12,530 INFO L87 Difference]: Start difference. First operand 155 states and 199 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:13,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:13,483 INFO L93 Difference]: Finished difference Result 408 states and 521 transitions. [2024-11-08 17:09:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:09:13,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-08 17:09:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:13,487 INFO L225 Difference]: With dead ends: 408 [2024-11-08 17:09:13,487 INFO L226 Difference]: Without dead ends: 283 [2024-11-08 17:09:13,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:09:13,491 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 117 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:13,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 717 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:09:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-08 17:09:13,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 159. [2024-11-08 17:09:13,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.221311475409836) internal successors, (149), 123 states have internal predecessors, (149), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:09:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 205 transitions. [2024-11-08 17:09:13,538 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 205 transitions. Word has length 137 [2024-11-08 17:09:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:13,541 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 205 transitions. [2024-11-08 17:09:13,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:13,544 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 205 transitions. [2024-11-08 17:09:13,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 17:09:13,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:13,546 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:13,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:13,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:13,748 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:13,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1951759861, now seen corresponding path program 1 times [2024-11-08 17:09:13,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:13,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794208479] [2024-11-08 17:09:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:13,749 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 [2024-11-08 17:09:13,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:13,755 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:13,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:14,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 17:09:14,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:14,196 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 [2024-11-08 17:09:14,396 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 [2024-11-08 17:09:14,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:14,643 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 [2024-11-08 17:09:14,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:14,804 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 79 treesize of output 65 [2024-11-08 17:09:15,137 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:15,138 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 82 treesize of output 81 [2024-11-08 17:09:15,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:15,411 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 85 [2024-11-08 17:09:15,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:15,550 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 88 treesize of output 85 [2024-11-08 17:09:15,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:15,610 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 83 treesize of output 35 [2024-11-08 17:09:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 17:09:15,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:09:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 17:09:16,261 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:16,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794208479] [2024-11-08 17:09:16,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794208479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:09:16,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:09:16,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 22 [2024-11-08 17:09:16,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800922822] [2024-11-08 17:09:16,263 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:09:16,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 17:09:16,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:16,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 17:09:16,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:09:16,266 INFO L87 Difference]: Start difference. First operand 159 states and 205 transitions. Second operand has 22 states, 18 states have (on average 4.833333333333333) internal successors, (87), 21 states have internal predecessors, (87), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:09:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:22,630 INFO L93 Difference]: Finished difference Result 421 states and 539 transitions. [2024-11-08 17:09:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-08 17:09:22,632 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 4.833333333333333) internal successors, (87), 21 states have internal predecessors, (87), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) Word has length 137 [2024-11-08 17:09:22,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:22,635 INFO L225 Difference]: With dead ends: 421 [2024-11-08 17:09:22,635 INFO L226 Difference]: Without dead ends: 292 [2024-11-08 17:09:22,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=430, Invalid=1732, Unknown=0, NotChecked=0, Total=2162 [2024-11-08 17:09:22,637 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 517 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:22,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 854 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-08 17:09:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-08 17:09:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 171. [2024-11-08 17:09:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 134 states have (on average 1.2388059701492538) internal successors, (166), 135 states have internal predecessors, (166), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:09:22,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 222 transitions. [2024-11-08 17:09:22,683 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 222 transitions. Word has length 137 [2024-11-08 17:09:22,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:22,684 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 222 transitions. [2024-11-08 17:09:22,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 4.833333333333333) internal successors, (87), 21 states have internal predecessors, (87), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:09:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 222 transitions. [2024-11-08 17:09:22,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 17:09:22,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:22,686 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:22,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:09:22,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:22,888 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:22,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:22,889 INFO L85 PathProgramCache]: Analyzing trace with hash 504310018, now seen corresponding path program 1 times [2024-11-08 17:09:22,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:22,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339423147] [2024-11-08 17:09:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:22,892 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 [2024-11-08 17:09:22,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:22,896 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:22,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:23,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 17:09:23,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:23,288 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 [2024-11-08 17:09:23,317 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 [2024-11-08 17:09:23,341 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 14 [2024-11-08 17:09:23,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-08 17:09:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:09:23,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:09:23,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:23,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339423147] [2024-11-08 17:09:23,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339423147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:23,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:23,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:09:23,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066042699] [2024-11-08 17:09:23,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:23,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:09:23,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:23,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:09:23,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:09:23,371 INFO L87 Difference]: Start difference. First operand 171 states and 222 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:24,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:24,107 INFO L93 Difference]: Finished difference Result 443 states and 571 transitions. [2024-11-08 17:09:24,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:09:24,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-11-08 17:09:24,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:24,111 INFO L225 Difference]: With dead ends: 443 [2024-11-08 17:09:24,111 INFO L226 Difference]: Without dead ends: 302 [2024-11-08 17:09:24,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:09:24,113 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 114 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:24,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 484 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:09:24,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-08 17:09:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 172. [2024-11-08 17:09:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 135 states have (on average 1.237037037037037) internal successors, (167), 136 states have internal predecessors, (167), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:09:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 223 transitions. [2024-11-08 17:09:24,158 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 223 transitions. Word has length 137 [2024-11-08 17:09:24,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:24,159 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 223 transitions. [2024-11-08 17:09:24,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 223 transitions. [2024-11-08 17:09:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 17:09:24,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:24,162 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:24,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:24,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:24,363 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:24,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:24,364 INFO L85 PathProgramCache]: Analyzing trace with hash 644858628, now seen corresponding path program 1 times [2024-11-08 17:09:24,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:24,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380371576] [2024-11-08 17:09:24,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:24,365 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 [2024-11-08 17:09:24,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:24,369 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:24,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:24,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 17:09:24,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:24,781 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 [2024-11-08 17:09:25,150 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 [2024-11-08 17:09:25,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:25,476 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 [2024-11-08 17:09:25,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:25,933 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 [2024-11-08 17:09:26,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:26,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 51 [2024-11-08 17:09:26,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:26,603 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 64 [2024-11-08 17:09:26,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:26,888 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 [2024-11-08 17:09:27,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:27,050 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 68 treesize of output 68 [2024-11-08 17:09:27,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:27,100 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 63 treesize of output 27 [2024-11-08 17:09:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 318 proven. 30 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-08 17:09:27,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:09:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 17:09:27,786 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380371576] [2024-11-08 17:09:27,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1380371576] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:09:27,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:09:27,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10] total 25 [2024-11-08 17:09:27,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403605915] [2024-11-08 17:09:27,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:09:27,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 17:09:27,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:27,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 17:09:27,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-08 17:09:27,789 INFO L87 Difference]: Start difference. First operand 172 states and 223 transitions. Second operand has 25 states, 21 states have (on average 4.380952380952381) internal successors, (92), 22 states have internal predecessors, (92), 8 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-08 17:09:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:36,506 INFO L93 Difference]: Finished difference Result 448 states and 574 transitions. [2024-11-08 17:09:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-08 17:09:36,507 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 4.380952380952381) internal successors, (92), 22 states have internal predecessors, (92), 8 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) Word has length 137 [2024-11-08 17:09:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:36,510 INFO L225 Difference]: With dead ends: 448 [2024-11-08 17:09:36,510 INFO L226 Difference]: Without dead ends: 306 [2024-11-08 17:09:36,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=665, Invalid=2415, Unknown=0, NotChecked=0, Total=3080 [2024-11-08 17:09:36,512 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 274 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:36,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1046 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2003 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-08 17:09:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-08 17:09:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 159. [2024-11-08 17:09:36,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 123 states have internal predecessors, (147), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:09:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 203 transitions. [2024-11-08 17:09:36,557 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 203 transitions. Word has length 137 [2024-11-08 17:09:36,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:36,558 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 203 transitions. [2024-11-08 17:09:36,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 4.380952380952381) internal successors, (92), 22 states have internal predecessors, (92), 8 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-08 17:09:36,558 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 203 transitions. [2024-11-08 17:09:36,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 17:09:36,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:36,560 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:36,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:36,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:36,760 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:36,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:36,761 INFO L85 PathProgramCache]: Analyzing trace with hash 676772254, now seen corresponding path program 1 times [2024-11-08 17:09:36,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:36,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353825580] [2024-11-08 17:09:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:36,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:36,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:36,767 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:36,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:37,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:09:37,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:37,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 17:09:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:09:37,210 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:09:37,211 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:37,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353825580] [2024-11-08 17:09:37,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353825580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:37,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:37,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:09:37,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996546277] [2024-11-08 17:09:37,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:37,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:09:37,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:37,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:09:37,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:09:37,213 INFO L87 Difference]: Start difference. First operand 159 states and 203 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:41,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:41,678 INFO L93 Difference]: Finished difference Result 288 states and 366 transitions. [2024-11-08 17:09:41,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:09:41,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-08 17:09:41,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:41,682 INFO L225 Difference]: With dead ends: 288 [2024-11-08 17:09:41,682 INFO L226 Difference]: Without dead ends: 159 [2024-11-08 17:09:41,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:09:41,684 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 110 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:41,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 213 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 17:09:41,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-08 17:09:41,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-08 17:09:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 123 states have internal predecessors, (146), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:09:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 202 transitions. [2024-11-08 17:09:41,734 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 202 transitions. Word has length 138 [2024-11-08 17:09:41,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:41,734 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 202 transitions. [2024-11-08 17:09:41,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:41,735 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 202 transitions. [2024-11-08 17:09:41,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 17:09:41,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:41,737 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:41,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:09:41,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:41,938 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:41,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:41,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1929251300, now seen corresponding path program 1 times [2024-11-08 17:09:41,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:41,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480403508] [2024-11-08 17:09:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:41,941 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 [2024-11-08 17:09:41,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:41,944 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:41,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:42,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 17:09:42,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:42,457 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 [2024-11-08 17:09:42,901 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 [2024-11-08 17:09:43,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:43,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 37 [2024-11-08 17:09:43,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:43,437 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 [2024-11-08 17:09:43,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:43,882 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 [2024-11-08 17:09:44,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:44,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 73 [2024-11-08 17:09:44,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:44,464 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 102 treesize of output 80 [2024-11-08 17:09:44,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:44,687 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 117 treesize of output 107 [2024-11-08 17:09:45,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:45,448 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 143 treesize of output 157 [2024-11-08 17:09:45,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:45,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 159 treesize of output 71 [2024-11-08 17:09:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 354 proven. 42 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 17:09:46,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:09:46,402 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:09:46,402 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:46,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480403508] [2024-11-08 17:09:46,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480403508] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 17:09:46,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:09:46,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-11-08 17:09:46,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585927790] [2024-11-08 17:09:46,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:46,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:09:46,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:46,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:09:46,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:09:46,405 INFO L87 Difference]: Start difference. First operand 159 states and 202 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:47,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:47,267 INFO L93 Difference]: Finished difference Result 395 states and 496 transitions. [2024-11-08 17:09:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:09:47,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-08 17:09:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:47,271 INFO L225 Difference]: With dead ends: 395 [2024-11-08 17:09:47,271 INFO L226 Difference]: Without dead ends: 266 [2024-11-08 17:09:47,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:09:47,272 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 100 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:47,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 552 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:09:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-08 17:09:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 159. [2024-11-08 17:09:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 123 states have internal predecessors, (145), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 17:09:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 201 transitions. [2024-11-08 17:09:47,326 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 201 transitions. Word has length 138 [2024-11-08 17:09:47,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:47,326 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 201 transitions. [2024-11-08 17:09:47,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 201 transitions. [2024-11-08 17:09:47,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 17:09:47,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:47,329 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:47,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:47,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:47,533 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:47,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:47,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1604962659, now seen corresponding path program 1 times [2024-11-08 17:09:47,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:47,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845941145] [2024-11-08 17:09:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:47,535 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 [2024-11-08 17:09:47,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:47,536 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:47,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:47,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 17:09:47,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:47,978 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 [2024-11-08 17:09:47,983 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 [2024-11-08 17:09:47,987 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 [2024-11-08 17:09:48,054 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 [2024-11-08 17:09:48,109 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 [2024-11-08 17:09:48,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:48,272 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 [2024-11-08 17:09:48,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:48,391 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 64 treesize of output 38 [2024-11-08 17:09:48,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:48,494 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 [2024-11-08 17:09:48,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:48,535 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 [2024-11-08 17:09:48,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:48,687 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 78 treesize of output 81 [2024-11-08 17:09:48,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:48,911 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 137 treesize of output 65 [2024-11-08 17:09:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-08 17:09:48,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:09:48,981 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:48,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845941145] [2024-11-08 17:09:48,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845941145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:48,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:48,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:09:48,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290862519] [2024-11-08 17:09:48,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:48,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:09:48,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:48,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:09:48,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:09:48,984 INFO L87 Difference]: Start difference. First operand 159 states and 201 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 17:09:51,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:51,083 INFO L93 Difference]: Finished difference Result 378 states and 472 transitions. [2024-11-08 17:09:51,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:09:51,084 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), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-08 17:09:51,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:51,086 INFO L225 Difference]: With dead ends: 378 [2024-11-08 17:09:51,086 INFO L226 Difference]: Without dead ends: 249 [2024-11-08 17:09:51,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:09:51,087 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 355 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:51,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 467 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 17:09:51,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-08 17:09:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 227. [2024-11-08 17:09:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 183 states have (on average 1.2076502732240437) internal successors, (221), 185 states have internal predecessors, (221), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:09:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 289 transitions. [2024-11-08 17:09:51,162 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 289 transitions. Word has length 139 [2024-11-08 17:09:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:51,163 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 289 transitions. [2024-11-08 17:09:51,163 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), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 17:09:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 289 transitions. [2024-11-08 17:09:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 17:09:51,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:51,165 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:51,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:09:51,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:51,366 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:51,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:51,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1110102023, now seen corresponding path program 1 times [2024-11-08 17:09:51,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:51,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270700877] [2024-11-08 17:09:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:51,367 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 [2024-11-08 17:09:51,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:51,368 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:51,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:51,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 17:09:51,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:51,809 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 [2024-11-08 17:09:52,025 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 42 treesize of output 20 [2024-11-08 17:09:52,137 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 [2024-11-08 17:09:52,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:52,390 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 [2024-11-08 17:09:52,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:52,585 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 [2024-11-08 17:09:52,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:52,748 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 79 treesize of output 65 [2024-11-08 17:09:52,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:52,924 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 87 treesize of output 71 [2024-11-08 17:09:52,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:52,993 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 87 treesize of output 71 [2024-11-08 17:09:53,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:53,226 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 103 treesize of output 88 [2024-11-08 17:09:53,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:53,411 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 108 treesize of output 42 [2024-11-08 17:09:56,053 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 338 proven. 42 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-08 17:09:56,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:09:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:09:56,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:09:56,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270700877] [2024-11-08 17:09:56,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270700877] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 17:09:56,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:09:56,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-08 17:09:56,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564864466] [2024-11-08 17:09:56,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:56,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:09:56,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:09:56,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:09:56,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:09:56,939 INFO L87 Difference]: Start difference. First operand 227 states and 289 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:57,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:57,973 INFO L93 Difference]: Finished difference Result 576 states and 729 transitions. [2024-11-08 17:09:57,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:09:57,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-08 17:09:57,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:57,976 INFO L225 Difference]: With dead ends: 576 [2024-11-08 17:09:57,977 INFO L226 Difference]: Without dead ends: 379 [2024-11-08 17:09:57,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:09:57,978 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:57,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 361 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:09:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-08 17:09:58,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 227. [2024-11-08 17:09:58,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 183 states have (on average 1.1967213114754098) internal successors, (219), 185 states have internal predecessors, (219), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:09:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 287 transitions. [2024-11-08 17:09:58,046 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 287 transitions. Word has length 139 [2024-11-08 17:09:58,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:58,046 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 287 transitions. [2024-11-08 17:09:58,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:09:58,047 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 287 transitions. [2024-11-08 17:09:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:09:58,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:58,048 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:58,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:58,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:09:58,249 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:58,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:58,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1948230303, now seen corresponding path program 1 times [2024-11-08 17:09:58,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:09:58,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483824088] [2024-11-08 17:09:58,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:58,250 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 [2024-11-08 17:09:58,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:09:58,252 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:09:58,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:09:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:58,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-08 17:09:58,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:58,721 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 [2024-11-08 17:09:58,726 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 [2024-11-08 17:09:58,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 17:09:58,735 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 [2024-11-08 17:09:58,803 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 [2024-11-08 17:09:58,859 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 [2024-11-08 17:09:58,914 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 [2024-11-08 17:09:59,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:59,056 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 [2024-11-08 17:09:59,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:59,276 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 [2024-11-08 17:09:59,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:59,461 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 77 treesize of output 72 [2024-11-08 17:09:59,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:59,669 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 78 [2024-11-08 17:09:59,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:59,758 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 78 [2024-11-08 17:09:59,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:59,972 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 109 treesize of output 126 [2024-11-08 17:10:00,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:00,291 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 197 treesize of output 89 [2024-11-08 17:10:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 408 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-08 17:10:00,440 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:00,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:00,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483824088] [2024-11-08 17:10:00,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483824088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:00,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:00,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 17:10:00,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695696766] [2024-11-08 17:10:00,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:00,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:10:00,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:10:00,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:10:00,443 INFO L87 Difference]: Start difference. First operand 227 states and 287 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-08 17:10:03,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:03,864 INFO L93 Difference]: Finished difference Result 501 states and 634 transitions. [2024-11-08 17:10:03,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:10:03,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 140 [2024-11-08 17:10:03,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:03,868 INFO L225 Difference]: With dead ends: 501 [2024-11-08 17:10:03,868 INFO L226 Difference]: Without dead ends: 304 [2024-11-08 17:10:03,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:10:03,870 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 264 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:03,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 568 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 17:10:03,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-08 17:10:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 229. [2024-11-08 17:10:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 185 states have (on average 1.1945945945945946) internal successors, (221), 187 states have internal predecessors, (221), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:10:03,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2024-11-08 17:10:03,974 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 140 [2024-11-08 17:10:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:03,975 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2024-11-08 17:10:03,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-08 17:10:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2024-11-08 17:10:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:10:03,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:03,976 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:03,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:04,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:04,177 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:04,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:04,177 INFO L85 PathProgramCache]: Analyzing trace with hash 758389091, now seen corresponding path program 1 times [2024-11-08 17:10:04,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:04,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834728537] [2024-11-08 17:10:04,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:04,178 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 [2024-11-08 17:10:04,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:04,180 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:04,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:04,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:10:04,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:04,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 17:10:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:10:04,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:04,602 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:04,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834728537] [2024-11-08 17:10:04,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834728537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:04,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:04,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:10:04,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511406487] [2024-11-08 17:10:04,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:04,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:10:04,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:04,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:10:04,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:10:04,608 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:07,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:07,649 INFO L93 Difference]: Finished difference Result 420 states and 528 transitions. [2024-11-08 17:10:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:10:07,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-08 17:10:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:07,652 INFO L225 Difference]: With dead ends: 420 [2024-11-08 17:10:07,652 INFO L226 Difference]: Without dead ends: 221 [2024-11-08 17:10:07,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:10:07,654 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 105 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:07,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 215 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 17:10:07,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-08 17:10:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-11-08 17:10:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 177 states have (on average 1.1807909604519775) internal successors, (209), 179 states have internal predecessors, (209), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:10:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 277 transitions. [2024-11-08 17:10:07,745 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 277 transitions. Word has length 140 [2024-11-08 17:10:07,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:07,746 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 277 transitions. [2024-11-08 17:10:07,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:07,746 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 277 transitions. [2024-11-08 17:10:07,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 17:10:07,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:07,748 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:07,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:07,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:07,949 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:07,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:07,949 INFO L85 PathProgramCache]: Analyzing trace with hash -952102880, now seen corresponding path program 1 times [2024-11-08 17:10:07,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:07,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952512785] [2024-11-08 17:10:07,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:07,950 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 [2024-11-08 17:10:07,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:07,952 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:07,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:08,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 17:10:08,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:08,383 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 [2024-11-08 17:10:08,388 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 [2024-11-08 17:10:08,458 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 [2024-11-08 17:10:08,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:08,593 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 35 treesize of output 37 [2024-11-08 17:10:08,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:08,787 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 [2024-11-08 17:10:09,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:09,059 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 [2024-11-08 17:10:09,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:09,293 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 [2024-11-08 17:10:09,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:09,705 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 [2024-11-08 17:10:10,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:10,189 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 [2024-11-08 17:10:10,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:10,524 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 107 treesize of output 102 [2024-11-08 17:10:10,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:10,840 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 108 [2024-11-08 17:10:11,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:11,483 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 131 treesize of output 125 [2024-11-08 17:10:12,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:12,108 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 136 treesize of output 52 [2024-11-08 17:10:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-08 17:10:12,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:12,178 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:12,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952512785] [2024-11-08 17:10:12,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952512785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:12,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:12,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 17:10:12,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136386741] [2024-11-08 17:10:12,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:12,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:10:12,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:12,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:10:12,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:10:12,180 INFO L87 Difference]: Start difference. First operand 221 states and 277 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 7 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-08 17:10:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:19,138 INFO L93 Difference]: Finished difference Result 414 states and 515 transitions. [2024-11-08 17:10:19,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:10:19,140 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 7 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 140 [2024-11-08 17:10:19,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:19,141 INFO L225 Difference]: With dead ends: 414 [2024-11-08 17:10:19,141 INFO L226 Difference]: Without dead ends: 223 [2024-11-08 17:10:19,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=89, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:10:19,142 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 341 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:19,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 376 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-08 17:10:19,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-08 17:10:19,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2024-11-08 17:10:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 177 states have (on average 1.1751412429378532) internal successors, (208), 179 states have internal predecessors, (208), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:10:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 276 transitions. [2024-11-08 17:10:19,224 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 276 transitions. Word has length 140 [2024-11-08 17:10:19,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:19,225 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 276 transitions. [2024-11-08 17:10:19,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 7 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-08 17:10:19,225 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 276 transitions. [2024-11-08 17:10:19,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 17:10:19,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:19,227 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:19,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:19,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:19,428 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:19,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash 94052537, now seen corresponding path program 1 times [2024-11-08 17:10:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:19,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405790648] [2024-11-08 17:10:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:19,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:19,434 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:19,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:19,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:10:19,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:10:19,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:19,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:19,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405790648] [2024-11-08 17:10:19,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405790648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:19,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:19,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:10:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859556012] [2024-11-08 17:10:19,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:19,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:10:19,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:19,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:10:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:10:19,841 INFO L87 Difference]: Start difference. First operand 221 states and 276 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:19,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:19,972 INFO L93 Difference]: Finished difference Result 420 states and 522 transitions. [2024-11-08 17:10:19,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:10:19,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-08 17:10:19,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:19,975 INFO L225 Difference]: With dead ends: 420 [2024-11-08 17:10:19,975 INFO L226 Difference]: Without dead ends: 229 [2024-11-08 17:10:19,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:10:19,976 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:19,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 630 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:10:19,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-08 17:10:20,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2024-11-08 17:10:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 182 states have (on average 1.1703296703296704) internal successors, (213), 184 states have internal predecessors, (213), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:10:20,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 281 transitions. [2024-11-08 17:10:20,078 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 281 transitions. Word has length 141 [2024-11-08 17:10:20,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:20,079 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 281 transitions. [2024-11-08 17:10:20,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 281 transitions. [2024-11-08 17:10:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:10:20,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:20,083 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:20,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:20,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:20,284 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:20,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:20,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1494434903, now seen corresponding path program 1 times [2024-11-08 17:10:20,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:20,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558899439] [2024-11-08 17:10:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:20,286 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 [2024-11-08 17:10:20,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:20,289 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:20,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:20,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 17:10:20,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:20,747 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 [2024-11-08 17:10:20,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 21 [2024-11-08 17:10:20,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:20,781 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 24 [2024-11-08 17:10:20,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:20,831 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 30 [2024-11-08 17:10:20,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:20,903 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 45 treesize of output 30 [2024-11-08 17:10:21,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:21,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 33 [2024-11-08 17:10:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:10:21,096 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:21,096 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:21,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558899439] [2024-11-08 17:10:21,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558899439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:21,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:21,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:10:21,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506587966] [2024-11-08 17:10:21,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:21,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:10:21,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:10:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:10:21,099 INFO L87 Difference]: Start difference. First operand 226 states and 281 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:22,732 INFO L93 Difference]: Finished difference Result 484 states and 585 transitions. [2024-11-08 17:10:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:10:22,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 17:10:22,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:22,736 INFO L225 Difference]: With dead ends: 484 [2024-11-08 17:10:22,736 INFO L226 Difference]: Without dead ends: 288 [2024-11-08 17:10:22,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:10:22,738 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 164 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:22,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 538 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 17:10:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-08 17:10:22,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 234. [2024-11-08 17:10:22,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 187 states have (on average 1.1550802139037433) internal successors, (216), 189 states have internal predecessors, (216), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 17:10:22,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 288 transitions. [2024-11-08 17:10:22,838 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 288 transitions. Word has length 143 [2024-11-08 17:10:22,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:22,839 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 288 transitions. [2024-11-08 17:10:22,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:22,839 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 288 transitions. [2024-11-08 17:10:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:10:22,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:22,840 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:22,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:23,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:23,041 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:23,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:23,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1023677989, now seen corresponding path program 1 times [2024-11-08 17:10:23,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:23,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306381633] [2024-11-08 17:10:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:23,042 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 [2024-11-08 17:10:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:23,043 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:23,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:23,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 17:10:23,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:23,562 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 [2024-11-08 17:10:23,774 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 42 treesize of output 20 [2024-11-08 17:10:23,864 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 [2024-11-08 17:10:24,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:24,141 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 [2024-11-08 17:10:24,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:24,517 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 [2024-11-08 17:10:24,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:24,723 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 89 treesize of output 69 [2024-11-08 17:10:24,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:24,926 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 97 treesize of output 75 [2024-11-08 17:10:25,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:25,003 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 97 treesize of output 75 [2024-11-08 17:10:25,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:25,099 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 93 treesize of output 75 [2024-11-08 17:10:25,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:25,805 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 125 treesize of output 53 [2024-11-08 17:10:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 362 proven. 42 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-08 17:10:25,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:10:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:10:26,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:26,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306381633] [2024-11-08 17:10:26,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306381633] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 17:10:26,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:10:26,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 19 [2024-11-08 17:10:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280538008] [2024-11-08 17:10:26,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:26,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:10:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:26,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:10:26,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:10:26,274 INFO L87 Difference]: Start difference. First operand 234 states and 288 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:26,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:26,849 INFO L93 Difference]: Finished difference Result 242 states and 297 transitions. [2024-11-08 17:10:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:10:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 17:10:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:26,851 INFO L225 Difference]: With dead ends: 242 [2024-11-08 17:10:26,851 INFO L226 Difference]: Without dead ends: 240 [2024-11-08 17:10:26,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:10:26,852 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 61 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:26,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 502 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:10:26,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-08 17:10:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-08 17:10:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 193 states have (on average 1.150259067357513) internal successors, (222), 195 states have internal predecessors, (222), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 17:10:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 294 transitions. [2024-11-08 17:10:26,922 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 294 transitions. Word has length 143 [2024-11-08 17:10:26,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:26,922 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 294 transitions. [2024-11-08 17:10:26,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 294 transitions. [2024-11-08 17:10:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:10:26,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:26,923 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:26,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:27,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:27,124 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:27,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:27,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1025525031, now seen corresponding path program 1 times [2024-11-08 17:10:27,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:27,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394810961] [2024-11-08 17:10:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:27,125 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 [2024-11-08 17:10:27,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:27,129 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:27,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:27,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 17:10:27,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:28,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:28,307 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 158 treesize of output 108 [2024-11-08 17:10:28,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:28,605 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 166 treesize of output 105 [2024-11-08 17:10:28,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:28,719 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 166 treesize of output 105 [2024-11-08 17:10:28,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:28,890 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 162 treesize of output 105 [2024-11-08 17:10:29,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:29,601 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 238 treesize of output 88 [2024-11-08 17:10:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:10:29,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:29,613 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:29,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394810961] [2024-11-08 17:10:29,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394810961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:29,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:29,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:10:29,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792662968] [2024-11-08 17:10:29,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:29,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:10:29,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:29,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:10:29,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:10:29,616 INFO L87 Difference]: Start difference. First operand 240 states and 294 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:10:33,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 17:10:35,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:35,219 INFO L93 Difference]: Finished difference Result 653 states and 791 transitions. [2024-11-08 17:10:35,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:10:35,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-08 17:10:35,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:35,222 INFO L225 Difference]: With dead ends: 653 [2024-11-08 17:10:35,222 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 17:10:35,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:10:35,225 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 202 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:35,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 389 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-08 17:10:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 17:10:35,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 440. [2024-11-08 17:10:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 359 states have (on average 1.1448467966573816) internal successors, (411), 363 states have internal predecessors, (411), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:10:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 533 transitions. [2024-11-08 17:10:35,401 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 533 transitions. Word has length 143 [2024-11-08 17:10:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:35,402 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 533 transitions. [2024-11-08 17:10:35,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:10:35,402 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 533 transitions. [2024-11-08 17:10:35,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:10:35,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:35,404 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:35,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:35,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:35,604 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:35,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1535499344, now seen corresponding path program 1 times [2024-11-08 17:10:35,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:35,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275945548] [2024-11-08 17:10:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:35,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:35,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:35,607 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:35,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:36,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 17:10:36,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:36,330 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 [2024-11-08 17:10:36,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:36,582 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 155 treesize of output 87 [2024-11-08 17:10:36,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:36,774 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 148 treesize of output 81 [2024-11-08 17:10:36,848 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:36,849 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 148 treesize of output 81 [2024-11-08 17:10:36,963 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:36,964 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 144 treesize of output 81 [2024-11-08 17:10:37,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:37,481 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 238 treesize of output 82 [2024-11-08 17:10:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:10:37,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:10:37,836 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:37,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275945548] [2024-11-08 17:10:37,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275945548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:10:37,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033395838] [2024-11-08 17:10:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:37,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:37,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:10:37,839 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:10:37,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-08 17:10:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:38,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 17:10:38,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:38,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:38,978 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 158 treesize of output 108 [2024-11-08 17:10:39,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:39,289 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 166 treesize of output 105 [2024-11-08 17:10:39,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:39,399 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 166 treesize of output 105 [2024-11-08 17:10:39,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:39,570 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 162 treesize of output 105 [2024-11-08 17:10:40,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:40,704 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 256 treesize of output 88 [2024-11-08 17:10:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:10:40,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:10:40,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033395838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:40,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:10:40,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 15 [2024-11-08 17:10:40,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783346574] [2024-11-08 17:10:40,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:40,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:10:40,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:40,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:10:40,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:10:40,733 INFO L87 Difference]: Start difference. First operand 440 states and 533 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:10:47,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 17:10:48,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 17:10:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:49,005 INFO L93 Difference]: Finished difference Result 853 states and 1028 transitions. [2024-11-08 17:10:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:10:49,006 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-08 17:10:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:49,008 INFO L225 Difference]: With dead ends: 853 [2024-11-08 17:10:49,009 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 17:10:49,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:10:49,011 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 250 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:49,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 647 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-08 17:10:49,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 17:10:49,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 440. [2024-11-08 17:10:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 359 states have (on average 1.139275766016713) internal successors, (409), 363 states have internal predecessors, (409), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:10:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 531 transitions. [2024-11-08 17:10:49,193 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 531 transitions. Word has length 143 [2024-11-08 17:10:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:49,193 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 531 transitions. [2024-11-08 17:10:49,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:10:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 531 transitions. [2024-11-08 17:10:49,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:10:49,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:49,196 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:49,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:49,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:10:49,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:49,597 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:49,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:49,597 INFO L85 PathProgramCache]: Analyzing trace with hash 919566388, now seen corresponding path program 1 times [2024-11-08 17:10:49,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:49,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130664300] [2024-11-08 17:10:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:49,598 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 [2024-11-08 17:10:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:49,599 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:49,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:50,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-08 17:10:50,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:50,071 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 [2024-11-08 17:10:50,251 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 42 treesize of output 20 [2024-11-08 17:10:50,332 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 42 treesize of output 20 [2024-11-08 17:10:50,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:50,415 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 66 treesize of output 40 [2024-11-08 17:10:50,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:50,579 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 54 treesize of output 53 [2024-11-08 17:10:50,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:50,703 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 69 treesize of output 56 [2024-11-08 17:10:50,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:50,776 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 65 treesize of output 56 [2024-11-08 17:10:51,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:51,115 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 87 treesize of output 39 [2024-11-08 17:10:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 17:10:51,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:10:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 17:10:51,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:51,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130664300] [2024-11-08 17:10:51,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130664300] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 17:10:51,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:10:51,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 23 [2024-11-08 17:10:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264420206] [2024-11-08 17:10:51,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:51,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:10:51,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:51,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:10:51,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:10:51,993 INFO L87 Difference]: Start difference. First operand 440 states and 531 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:10:53,580 INFO L93 Difference]: Finished difference Result 1214 states and 1459 transitions. [2024-11-08 17:10:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:10:53,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-08 17:10:53,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:10:53,585 INFO L225 Difference]: With dead ends: 1214 [2024-11-08 17:10:53,585 INFO L226 Difference]: Without dead ends: 804 [2024-11-08 17:10:53,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2024-11-08 17:10:53,587 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 82 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:10:53,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 591 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:10:53,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-11-08 17:10:53,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 580. [2024-11-08 17:10:53,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 499 states have (on average 1.160320641282565) internal successors, (579), 503 states have internal predecessors, (579), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:10:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 701 transitions. [2024-11-08 17:10:53,828 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 701 transitions. Word has length 143 [2024-11-08 17:10:53,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:10:53,829 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 701 transitions. [2024-11-08 17:10:53,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 17:10:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 701 transitions. [2024-11-08 17:10:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:10:53,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:53,832 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:53,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:54,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:10:54,032 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:54,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 332760374, now seen corresponding path program 1 times [2024-11-08 17:10:54,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:10:54,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314651197] [2024-11-08 17:10:54,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:54,034 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 [2024-11-08 17:10:54,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:10:54,035 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:10:54,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:10:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:54,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 17:10:54,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:10:54,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 17:10:54,781 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 [2024-11-08 17:10:55,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:55,025 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 [2024-11-08 17:10:55,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:55,302 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 [2024-11-08 17:10:55,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:55,491 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 89 treesize of output 78 [2024-11-08 17:10:55,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:55,729 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 85 [2024-11-08 17:10:55,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:55,828 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 85 [2024-11-08 17:10:55,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:55,955 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 88 treesize of output 85 [2024-11-08 17:10:56,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:10:56,349 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 100 treesize of output 46 [2024-11-08 17:10:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 308 proven. 30 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-08 17:10:56,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:10:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 17:10:56,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:10:56,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314651197] [2024-11-08 17:10:56,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314651197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:10:56,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:10:56,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 18 [2024-11-08 17:10:56,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991167792] [2024-11-08 17:10:56,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:10:56,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:10:56,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:10:56,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:10:56,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:10:56,909 INFO L87 Difference]: Start difference. First operand 580 states and 701 transitions. Second operand has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 17 states have internal predecessors, (107), 8 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-08 17:11:00,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:00,592 INFO L93 Difference]: Finished difference Result 1134 states and 1366 transitions. [2024-11-08 17:11:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:11:00,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 17 states have internal predecessors, (107), 8 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) Word has length 143 [2024-11-08 17:11:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:00,597 INFO L225 Difference]: With dead ends: 1134 [2024-11-08 17:11:00,597 INFO L226 Difference]: Without dead ends: 584 [2024-11-08 17:11:00,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 267 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-11-08 17:11:00,598 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 92 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:00,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 475 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 17:11:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-08 17:11:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 580. [2024-11-08 17:11:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 499 states have (on average 1.1442885771543085) internal successors, (571), 503 states have internal predecessors, (571), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:11:00,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 693 transitions. [2024-11-08 17:11:00,797 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 693 transitions. Word has length 143 [2024-11-08 17:11:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:00,798 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 693 transitions. [2024-11-08 17:11:00,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 17 states have internal predecessors, (107), 8 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-08 17:11:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 693 transitions. [2024-11-08 17:11:00,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:11:00,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:00,800 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:00,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:11:01,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:11:01,001 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:01,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:01,002 INFO L85 PathProgramCache]: Analyzing trace with hash -739531116, now seen corresponding path program 1 times [2024-11-08 17:11:01,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:11:01,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159470957] [2024-11-08 17:11:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:01,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:11:01,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:11:01,007 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:11:01,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-08 17:11:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:01,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 17:11:01,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:11:01,501 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 [2024-11-08 17:11:01,571 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 [2024-11-08 17:11:01,628 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 [2024-11-08 17:11:01,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:01,756 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 [2024-11-08 17:11:01,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:01,866 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 [2024-11-08 17:11:02,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:02,068 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 [2024-11-08 17:11:02,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:02,286 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 [2024-11-08 17:11:02,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:02,482 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 [2024-11-08 17:11:02,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:02,749 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 [2024-11-08 17:11:02,945 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:02,946 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 77 treesize of output 72 [2024-11-08 17:11:03,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:03,114 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 [2024-11-08 17:11:03,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:03,289 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 99 treesize of output 86 [2024-11-08 17:11:03,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:03,497 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 86 [2024-11-08 17:11:03,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:03,776 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 100 treesize of output 40 [2024-11-08 17:11:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-08 17:11:03,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:11:03,833 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:11:03,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159470957] [2024-11-08 17:11:03,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159470957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:03,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:03,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:11:03,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920578781] [2024-11-08 17:11:03,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:03,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:11:03,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:11:03,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:11:03,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:11:03,836 INFO L87 Difference]: Start difference. First operand 580 states and 693 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 17:11:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:06,819 INFO L93 Difference]: Finished difference Result 1096 states and 1299 transitions. [2024-11-08 17:11:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:11:06,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-08 17:11:06,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:06,823 INFO L225 Difference]: With dead ends: 1096 [2024-11-08 17:11:06,823 INFO L226 Difference]: Without dead ends: 546 [2024-11-08 17:11:06,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:06,825 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 209 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:06,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 292 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 17:11:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-08 17:11:07,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 544. [2024-11-08 17:11:07,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 463 states have (on average 1.1209503239740821) internal successors, (519), 467 states have internal predecessors, (519), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:11:07,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 641 transitions. [2024-11-08 17:11:07,044 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 641 transitions. Word has length 143 [2024-11-08 17:11:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:07,045 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 641 transitions. [2024-11-08 17:11:07,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 17:11:07,045 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 641 transitions. [2024-11-08 17:11:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:11:07,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:07,048 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:07,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:11:07,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:11:07,249 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:07,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1027421717, now seen corresponding path program 1 times [2024-11-08 17:11:07,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:11:07,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974169834] [2024-11-08 17:11:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:07,251 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 [2024-11-08 17:11:07,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:11:07,254 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:11:07,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:11:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:07,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 17:11:07,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:11:07,791 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 [2024-11-08 17:11:07,997 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 42 treesize of output 20 [2024-11-08 17:11:08,089 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 42 treesize of output 20 [2024-11-08 17:11:08,169 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 64 treesize of output 20 [2024-11-08 17:11:08,234 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 [2024-11-08 17:11:08,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:08,316 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 [2024-11-08 17:11:08,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:08,361 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 48 treesize of output 33 [2024-11-08 17:11:08,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:08,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 34 [2024-11-08 17:11:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-08 17:11:08,733 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:11:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-08 17:11:09,844 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:11:09,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974169834] [2024-11-08 17:11:09,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974169834] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:11:09,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:11:09,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 26 [2024-11-08 17:11:09,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382360240] [2024-11-08 17:11:09,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:11:09,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 17:11:09,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:11:09,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 17:11:09,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-11-08 17:11:09,848 INFO L87 Difference]: Start difference. First operand 544 states and 641 transitions. Second operand has 26 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 26 states have internal predecessors, (105), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:11:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:14,217 INFO L93 Difference]: Finished difference Result 1391 states and 1633 transitions. [2024-11-08 17:11:14,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 17:11:14,218 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 26 states have internal predecessors, (105), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) Word has length 143 [2024-11-08 17:11:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:14,221 INFO L225 Difference]: With dead ends: 1391 [2024-11-08 17:11:14,221 INFO L226 Difference]: Without dead ends: 877 [2024-11-08 17:11:14,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=1102, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 17:11:14,223 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 365 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:14,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 912 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 17:11:14,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-08 17:11:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 546. [2024-11-08 17:11:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 465 states have (on average 1.1204301075268817) internal successors, (521), 469 states have internal predecessors, (521), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:11:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 643 transitions. [2024-11-08 17:11:14,527 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 643 transitions. Word has length 143 [2024-11-08 17:11:14,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:14,528 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 643 transitions. [2024-11-08 17:11:14,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 26 states have internal predecessors, (105), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-08 17:11:14,528 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 643 transitions. [2024-11-08 17:11:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:11:14,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:14,532 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:14,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:11:14,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:11:14,733 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:14,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash -325821843, now seen corresponding path program 1 times [2024-11-08 17:11:14,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:11:14,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219182069] [2024-11-08 17:11:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:14,735 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 [2024-11-08 17:11:14,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:11:14,739 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:11:14,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:11:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:15,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-08 17:11:15,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:11:15,248 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 [2024-11-08 17:11:15,460 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 37 treesize of output 30 [2024-11-08 17:11:16,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:16,246 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 69 treesize of output 53 [2024-11-08 17:11:16,663 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:16,663 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 84 treesize of output 56 [2024-11-08 17:11:16,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:16,927 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 111 treesize of output 88 [2024-11-08 17:11:17,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:17,349 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 [2024-11-08 17:11:17,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:17,636 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 107 treesize of output 97 [2024-11-08 17:11:17,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:17,856 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 103 treesize of output 97 [2024-11-08 17:11:18,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:11:18,989 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 125 treesize of output 53 [2024-11-08 17:11:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 306 proven. 36 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-08 17:11:19,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:11:22,210 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 123 proven. 48 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-08 17:11:22,210 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:11:22,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219182069] [2024-11-08 17:11:22,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219182069] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:11:22,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:11:22,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22] total 45 [2024-11-08 17:11:22,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636133561] [2024-11-08 17:11:22,211 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:11:22,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-08 17:11:22,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:11:22,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-08 17:11:22,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1613, Unknown=0, NotChecked=0, Total=1980 [2024-11-08 17:11:22,213 INFO L87 Difference]: Start difference. First operand 546 states and 643 transitions. Second operand has 45 states, 37 states have (on average 3.2162162162162162) internal successors, (119), 39 states have internal predecessors, (119), 11 states have call successors, (24), 5 states have call predecessors, (24), 9 states have return successors, (24), 8 states have call predecessors, (24), 11 states have call successors, (24) [2024-11-08 17:11:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:35,708 INFO L93 Difference]: Finished difference Result 1392 states and 1631 transitions. [2024-11-08 17:11:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-08 17:11:35,712 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 37 states have (on average 3.2162162162162162) internal successors, (119), 39 states have internal predecessors, (119), 11 states have call successors, (24), 5 states have call predecessors, (24), 9 states have return successors, (24), 8 states have call predecessors, (24), 11 states have call successors, (24) Word has length 143 [2024-11-08 17:11:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:35,716 INFO L225 Difference]: With dead ends: 1392 [2024-11-08 17:11:35,716 INFO L226 Difference]: Without dead ends: 876 [2024-11-08 17:11:35,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 239 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=933, Invalid=4323, Unknown=0, NotChecked=0, Total=5256 [2024-11-08 17:11:35,718 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 435 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 3330 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 3330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:35,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1585 Invalid, 3490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 3330 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-08 17:11:35,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-08 17:11:36,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 419. [2024-11-08 17:11:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 338 states have (on average 1.1035502958579881) internal successors, (373), 342 states have internal predecessors, (373), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:11:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 495 transitions. [2024-11-08 17:11:36,069 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 495 transitions. Word has length 143 [2024-11-08 17:11:36,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:36,069 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 495 transitions. [2024-11-08 17:11:36,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 37 states have (on average 3.2162162162162162) internal successors, (119), 39 states have internal predecessors, (119), 11 states have call successors, (24), 5 states have call predecessors, (24), 9 states have return successors, (24), 8 states have call predecessors, (24), 11 states have call successors, (24) [2024-11-08 17:11:36,070 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 495 transitions. [2024-11-08 17:11:36,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:11:36,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:36,071 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:36,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-08 17:11:36,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:11:36,272 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:36,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:36,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1273671525, now seen corresponding path program 1 times [2024-11-08 17:11:36,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:11:36,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259853529] [2024-11-08 17:11:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:36,274 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 [2024-11-08 17:11:36,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:11:36,277 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:11:36,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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 [2024-11-08 17:11:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:36,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:11:36,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:11:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:11:36,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:11:36,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:11:36,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259853529] [2024-11-08 17:11:36,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259853529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:36,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:36,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:11:36,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475579874] [2024-11-08 17:11:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:36,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:11:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:11:36,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:11:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:11:36,633 INFO L87 Difference]: Start difference. First operand 419 states and 495 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:11:36,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:36,823 INFO L93 Difference]: Finished difference Result 808 states and 950 transitions. [2024-11-08 17:11:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:11:36,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-08 17:11:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:36,828 INFO L225 Difference]: With dead ends: 808 [2024-11-08 17:11:36,828 INFO L226 Difference]: Without dead ends: 419 [2024-11-08 17:11:36,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:11:36,830 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 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 [2024-11-08 17:11:36,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:36,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-08 17:11:36,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2024-11-08 17:11:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 338 states have (on average 1.1005917159763314) internal successors, (372), 342 states have internal predecessors, (372), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 17:11:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 494 transitions. [2024-11-08 17:11:36,999 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 494 transitions. Word has length 143 [2024-11-08 17:11:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:36,999 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 494 transitions. [2024-11-08 17:11:36,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 17:11:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 494 transitions. [2024-11-08 17:11:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 17:11:37,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:37,001 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:37,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-08 17:11:37,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:11:37,202 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:37,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1467418263, now seen corresponding path program 1 times [2024-11-08 17:11:37,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:11:37,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534349642] [2024-11-08 17:11:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:37,203 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 [2024-11-08 17:11:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:11:37,206 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -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) [2024-11-08 17:11:37,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-08 17:11:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:37,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-08 17:11:37,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:11:37,636 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 82 treesize of output 81 [2024-11-08 17:11:37,912 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 172 treesize of output 141 [2024-11-08 17:11:38,683 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 167 treesize of output 138 [2024-11-08 17:11:39,851 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 162 treesize of output 135 [2024-11-08 17:11:41,357 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 157 treesize of output 132 [2024-11-08 17:11:47,269 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 152 treesize of output 129 [2024-11-08 17:11:58,585 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 163 treesize of output 138 [2024-11-08 17:12:30,535 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 147 treesize of output 126 [2024-11-08 17:13:13,342 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 142 treesize of output 123 [2024-11-08 17:14:09,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 125 [2024-11-08 17:15:37,613 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-08 17:15:37,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-08 17:15:37,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:15:37,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534349642] [2024-11-08 17:15:37,614 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-08 17:15:37,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-08 17:15:37,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:15:37,815 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:553) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 44 more [2024-11-08 17:15:37,818 INFO L158 Benchmark]: Toolchain (without parser) took 419357.92ms. Allocated memory was 73.4MB in the beginning and 197.1MB in the end (delta: 123.7MB). Free memory was 50.0MB in the beginning and 157.2MB in the end (delta: -107.2MB). Peak memory consumption was 125.3MB. Max. memory is 16.1GB. [2024-11-08 17:15:37,819 INFO L158 Benchmark]: CDTParser took 1.47ms. Allocated memory is still 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:15:37,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.42ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 49.8MB in the beginning and 69.0MB in the end (delta: -19.2MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-11-08 17:15:37,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.25ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 65.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:15:37,819 INFO L158 Benchmark]: Boogie Preprocessor took 114.02ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 60.9MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:15:37,819 INFO L158 Benchmark]: RCFGBuilder took 1190.27ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 49.3MB in the end (delta: 11.6MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-11-08 17:15:37,820 INFO L158 Benchmark]: TraceAbstraction took 417329.02ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 48.5MB in the beginning and 157.2MB in the end (delta: -108.7MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. [2024-11-08 17:15:37,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47ms. Allocated memory is still 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 615.42ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 49.8MB in the beginning and 69.0MB in the end (delta: -19.2MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.25ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 65.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.02ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 60.9MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1190.27ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 49.3MB in the end (delta: 11.6MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 417329.02ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 48.5MB in the beginning and 157.2MB in the end (delta: -108.7MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505da961-1cda-455c-a709-17da57ae1f9c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")