./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:22:06,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:22:06,967 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-13 12:22:06,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:22:06,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:22:07,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:22:07,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:22:07,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:22:07,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:22:07,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:22:07,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:22:07,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:22:07,039 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:22:07,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:22:07,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:22:07,039 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:22:07,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:22:07,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:22:07,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:22:07,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:22:07,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:22:07,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:22:07,041 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:22:07,042 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:22:07,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:22:07,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:22:07,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:22:07,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:22:07,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:22:07,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:22:07,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 12:22:07,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:22:07,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:22:07,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:22:07,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:22:07,045 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-13 12:22:07,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:22:07,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:22:07,046 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-13 12:22:07,046 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-13 12:22:07,047 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-13 12:22:07,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F 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 -> GemCutter 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-13 12:22:07,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:22:07,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:22:07,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:22:07,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:22:07,432 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:22:07,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i Unable to find full path for "g++" [2024-11-13 12:22:09,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:22:10,289 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:22:10,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-13 12:22:10,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/data/44cb5a942/33f9918dfba642af87975f8d800cc8a7/FLAG7ff00afe7 [2024-11-13 12:22:10,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/data/44cb5a942/33f9918dfba642af87975f8d800cc8a7 [2024-11-13 12:22:10,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:22:10,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:22:10,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:22:10,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:22:10,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:22:10,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:22:10" (1/1) ... [2024-11-13 12:22:10,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3f7de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:10, skipping insertion in model container [2024-11-13 12:22:10,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:22:10" (1/1) ... [2024-11-13 12:22:10,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:22:11,029 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_ab870636-6072-4c59-93a7-b9299d30b078/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2024-11-13 12:22:11,049 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,049 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,050 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,050 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:22:11,160 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:22:11,240 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_ab870636-6072-4c59-93a7-b9299d30b078/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2024-11-13 12:22:11,251 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,251 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,254 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,255 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 12:22:11,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:22:11,406 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:22:11,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11 WrapperNode [2024-11-13 12:22:11,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:22:11,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:22:11,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:22:11,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:22:11,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,511 INFO L138 Inliner]: procedures = 280, calls = 175, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 407 [2024-11-13 12:22:11,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:22:11,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:22:11,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:22:11,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:22:11,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:22:11,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:22:11,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:22:11,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:22:11,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (1/1) ... [2024-11-13 12:22:11,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 12:22:11,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:11,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 12:22:11,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 12:22:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:22:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 12:22:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-13 12:22:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-13 12:22:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:22:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 12:22:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 12:22:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 12:22:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-13 12:22:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-13 12:22:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 12:22:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 12:22:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 12:22:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:22:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 12:22:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 12:22:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:22:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:22:11,703 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 12:22:11,997 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:22:12,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:22:13,136 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:22:13,136 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:22:14,895 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:22:14,895 INFO L316 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-13 12:22:14,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:22:14 BoogieIcfgContainer [2024-11-13 12:22:14,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:22:14,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:22:14,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:22:14,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:22:14,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:22:10" (1/3) ... [2024-11-13 12:22:14,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a26e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:22:14, skipping insertion in model container [2024-11-13 12:22:14,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:22:11" (2/3) ... [2024-11-13 12:22:14,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a26e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:22:14, skipping insertion in model container [2024-11-13 12:22:14,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:22:14" (3/3) ... [2024-11-13 12:22:14,914 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-13 12:22:14,937 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:22:14,939 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 82 locations, 1 initial locations, 20 loop locations, and 2 error locations. [2024-11-13 12:22:14,939 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:22:15,069 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-13 12:22:15,146 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:22:15,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-13 12:22:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:15,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-13 12:22:15,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-13 12:22:15,190 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-13 12:22:15,205 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork0 ======== [2024-11-13 12:22:15,216 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=PARTIAL_ORDER_FA, 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;@31470a8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:22:15,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:22:21,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:21,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1392869416, now seen corresponding path program 1 times [2024-11-13 12:22:21,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:21,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298425984] [2024-11-13 12:22:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-13 12:22:22,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:22,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298425984] [2024-11-13 12:22:22,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298425984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:22:22,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:22:22,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:22:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870903326] [2024-11-13 12:22:22,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:22:22,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:22:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:22,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:22:22,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:22:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:22,431 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:22,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:22,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:25,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:22:25,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:25,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:25,519 INFO L85 PathProgramCache]: Analyzing trace with hash 529216322, now seen corresponding path program 1 times [2024-11-13 12:22:25,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:25,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969517430] [2024-11-13 12:22:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:25,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:26,140 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 12:22:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:26,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969517430] [2024-11-13 12:22:26,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969517430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:22:26,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:22:26,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:22:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447463348] [2024-11-13 12:22:26,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:22:26,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:22:26,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:26,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:22:26,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:22:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:26,153 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:26,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:26,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:26,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:26,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:26,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:22:26,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:26,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:26,518 INFO L85 PathProgramCache]: Analyzing trace with hash -598501538, now seen corresponding path program 1 times [2024-11-13 12:22:26,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:26,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580499392] [2024-11-13 12:22:26,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:26,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 12:22:27,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:27,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580499392] [2024-11-13 12:22:27,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580499392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:22:27,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716605632] [2024-11-13 12:22:27,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:27,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:27,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:27,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:22:27,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:22:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:27,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:22:27,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:22:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 12:22:27,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:22:27,534 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 12:22:27,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716605632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:22:27,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:22:27,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-13 12:22:27,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597495951] [2024-11-13 12:22:27,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:22:27,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:22:27,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:27,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:22:27,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:22:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:27,543 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:27,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:27,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:27,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:27,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:28,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:28,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:28,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 12:22:28,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:28,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:28,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:28,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1083267650, now seen corresponding path program 2 times [2024-11-13 12:22:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:28,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801708386] [2024-11-13 12:22:28,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:28,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-13 12:22:29,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:29,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801708386] [2024-11-13 12:22:29,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801708386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:22:29,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586438585] [2024-11-13 12:22:29,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:22:29,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:29,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:29,431 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:22:29,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:22:29,861 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 12:22:29,862 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:22:29,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 12:22:29,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:22:29,904 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 11 treesize of output 7 [2024-11-13 12:22:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-13 12:22:29,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:22:29,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586438585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:22:29,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:22:29,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-13 12:22:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279823720] [2024-11-13 12:22:29,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:22:29,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:22:29,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:29,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:22:29,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:22:29,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:29,931 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:29,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:29,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:29,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:29,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:29,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:31,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:31,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:31,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 12:22:31,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:31,731 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:31,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:31,731 INFO L85 PathProgramCache]: Analyzing trace with hash 790715207, now seen corresponding path program 1 times [2024-11-13 12:22:31,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:31,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557832640] [2024-11-13 12:22:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2024-11-13 12:22:32,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557832640] [2024-11-13 12:22:32,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557832640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:22:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742401906] [2024-11-13 12:22:32,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:32,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:32,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:32,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:22:32,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 12:22:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:33,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 1901 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 12:22:33,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:22:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-11-13 12:22:33,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:22:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-11-13 12:22:33,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742401906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:22:33,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:22:33,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-13 12:22:33,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900237811] [2024-11-13 12:22:33,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:22:33,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 12:22:33,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:33,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 12:22:33,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-13 12:22:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:33,539 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:33,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:33,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:33,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:33,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:33,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:33,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:35,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 12:22:35,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 12:22:35,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:35,439 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:35,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:35,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1549681468, now seen corresponding path program 2 times [2024-11-13 12:22:35,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:35,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33840920] [2024-11-13 12:22:35,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:35,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2024-11-13 12:22:37,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33840920] [2024-11-13 12:22:37,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33840920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:22:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044923685] [2024-11-13 12:22:37,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:22:37,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:37,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:37,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:22:37,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 12:22:38,675 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 12:22:38,675 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:22:38,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 12:22:38,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:22:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2024-11-13 12:22:38,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:22:39,213 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2024-11-13 12:22:39,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044923685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:22:39,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:22:39,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 13, 13] total 26 [2024-11-13 12:22:39,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745226745] [2024-11-13 12:22:39,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:22:39,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 12:22:39,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 12:22:39,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=369, Unknown=0, NotChecked=0, Total=650 [2024-11-13 12:22:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:39,218 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:39,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.923076923076923) internal successors, (102), 26 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:39,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:39,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:39,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:39,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:39,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-11-13 12:22:39,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 12:22:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 12:22:45,189 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 12:22:45,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 12:22:45,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 12:22:45,394 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2024-11-13 12:22:45,396 INFO L320 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork0 was SAFE (1/3) [2024-11-13 12:22:45,401 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:22:45,402 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-13 12:22:45,402 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1_funThread1of1ForFork1 ======== [2024-11-13 12:22:45,402 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=PARTIAL_ORDER_FA, 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;@31470a8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:22:45,402 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:22:45,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:45,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:45,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1777598961, now seen corresponding path program 1 times [2024-11-13 12:22:45,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:45,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951158254] [2024-11-13 12:22:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:22:45,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:45,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951158254] [2024-11-13 12:22:45,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951158254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:22:45,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:22:45,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:22:45,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102062545] [2024-11-13 12:22:45,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:22:45,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:22:45,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:45,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:22:45,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:22:45,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:45,491 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:45,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:45,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:45,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:45,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:22:45,729 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:45,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash -709703532, now seen corresponding path program 1 times [2024-11-13 12:22:45,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:45,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085665336] [2024-11-13 12:22:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:45,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:22:45,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:45,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085665336] [2024-11-13 12:22:45,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085665336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:22:45,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:22:45,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:22:45,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536336968] [2024-11-13 12:22:45,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:22:45,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:22:45,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:45,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:22:45,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:22:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:45,816 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:45,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:45,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:45,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:46,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:22:46,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:46,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1887021816, now seen corresponding path program 1 times [2024-11-13 12:22:46,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:46,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934585226] [2024-11-13 12:22:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:46,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:46,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:22:46,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:46,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934585226] [2024-11-13 12:22:46,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934585226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:22:46,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310995341] [2024-11-13 12:22:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:46,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:46,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:46,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:22:46,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 12:22:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:46,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:22:46,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:22:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:22:46,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:22:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:22:46,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310995341] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:22:46,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:22:46,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-13 12:22:46,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184284373] [2024-11-13 12:22:46,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:22:46,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:22:46,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:46,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:22:46,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:22:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:46,982 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:46,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:46,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:46,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:46,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:48,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:48,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 12:22:48,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:48,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:48,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:48,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1047903852, now seen corresponding path program 2 times [2024-11-13 12:22:48,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:48,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880007522] [2024-11-13 12:22:48,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:48,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 12:22:48,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:48,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880007522] [2024-11-13 12:22:48,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880007522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:22:48,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40113376] [2024-11-13 12:22:48,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:22:48,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:48,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:48,804 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:22:48,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 12:22:49,494 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 12:22:49,495 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:22:49,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 12:22:49,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:22:49,572 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:22:49,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:22:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 12:22:49,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40113376] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:22:49,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:22:49,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-13 12:22:49,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482180063] [2024-11-13 12:22:49,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:22:49,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 12:22:49,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:22:49,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 12:22:49,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-13 12:22:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:49,684 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-13 12:22:49,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:22:49,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:49,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:49,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:49,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:22:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:22:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:22:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 12:22:51,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 12:22:51,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 12:22:51,622 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:22:51,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:22:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash 899706807, now seen corresponding path program 3 times [2024-11-13 12:22:51,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:22:51,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663577800] [2024-11-13 12:22:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:22:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:22:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:22:53,049 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-13 12:22:53,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:22:53,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663577800] [2024-11-13 12:22:53,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663577800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:22:53,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650002311] [2024-11-13 12:22:53,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 12:22:53,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:22:53,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 [2024-11-13 12:22:53,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:22:53,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab870636-6072-4c59-93a7-b9299d30b078/bin/ugemcutter-verify-yV71Fz5F0F/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process