./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco --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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:32:02,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:32:03,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:32:03,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:32:03,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:32:03,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:32:03,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:32:03,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:32:03,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:32:03,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:32:03,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:32:03,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:32:03,108 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:32:03,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:32:03,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:32:03,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:32:03,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:32:03,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:32:03,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:32:03,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:32:03,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:32:03,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:32:03,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:32:03,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:32:03,110 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:32:03,110 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:32:03,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:32:03,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:32:03,111 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:32:03,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:32:03,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:32:03,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:32:03,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:32:03,112 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:32:03,112 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:32:03,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:32:03,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:32:03,113 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:32:03,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:32:03,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:32:03,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:32:03,113 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:32:03,113 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:32:03,114 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_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco 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 -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2024-11-27 06:32:03,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:32:03,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:32:03,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:32:03,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:32:03,540 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:32:03,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2024-11-27 06:32:06,966 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/data/ccf8927c9/e9aaf60395c2415793402bfd6cf8ec6a/FLAG0f17beb0f [2024-11-27 06:32:07,367 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:32:07,368 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2024-11-27 06:32:07,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/data/ccf8927c9/e9aaf60395c2415793402bfd6cf8ec6a/FLAG0f17beb0f [2024-11-27 06:32:07,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/data/ccf8927c9/e9aaf60395c2415793402bfd6cf8ec6a [2024-11-27 06:32:07,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:32:07,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:32:07,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:32:07,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:32:07,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:32:07,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:32:07" (1/1) ... [2024-11-27 06:32:07,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48696fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:07, skipping insertion in model container [2024-11-27 06:32:07,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:32:07" (1/1) ... [2024-11-27 06:32:07,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:32:07,912 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_808b8c24-7566-4dd0-869e-5e502c745451/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5898,5911] [2024-11-27 06:32:07,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:32:07,947 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:32:08,018 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_808b8c24-7566-4dd0-869e-5e502c745451/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5898,5911] [2024-11-27 06:32:08,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:32:08,049 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:32:08,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08 WrapperNode [2024-11-27 06:32:08,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:32:08,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:32:08,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:32:08,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:32:08,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,137 INFO L138 Inliner]: procedures = 25, calls = 73, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 453 [2024-11-27 06:32:08,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:32:08,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:32:08,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:32:08,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:32:08,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,187 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:32:08,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:32:08,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:32:08,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:32:08,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (1/1) ... [2024-11-27 06:32:08,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:32:08,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:32:08,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:32:08,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:32:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:32:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:32:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:32:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:32:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:32:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 06:32:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 06:32:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-27 06:32:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-27 06:32:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:32:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:32:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:32:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:32:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:32:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:32:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:32:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:32:08,332 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 06:32:08,540 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:32:08,544 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:32:09,639 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:32:09,640 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:32:10,601 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:32:10,602 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-27 06:32:10,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:32:10 BoogieIcfgContainer [2024-11-27 06:32:10,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:32:10,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:32:10,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:32:10,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:32:10,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:32:07" (1/3) ... [2024-11-27 06:32:10,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d90816d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:32:10, skipping insertion in model container [2024-11-27 06:32:10,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:32:08" (2/3) ... [2024-11-27 06:32:10,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d90816d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:32:10, skipping insertion in model container [2024-11-27 06:32:10,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:32:10" (3/3) ... [2024-11-27 06:32:10,622 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2024-11-27 06:32:10,645 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:32:10,651 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-commit-2.wvr.c that has 5 procedures, 53 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2024-11-27 06:32:10,651 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:32:10,820 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-27 06:32:10,908 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:32:10,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:32:10,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:32:10,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:32:10,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:32:11,071 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:32:11,102 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:32:11,116 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;@65f99bdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:32:11,117 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 06:32:11,740 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:11,741 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:11,742 INFO L139 ounterexampleChecker]: Examining path program with hash -1391534139, occurence #1 [2024-11-27 06:32:11,742 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:32:11,742 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:11,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:11,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1805556667, now seen corresponding path program 1 times [2024-11-27 06:32:11,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:11,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173360016] [2024-11-27 06:32:11,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:11,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:32:12,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:12,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173360016] [2024-11-27 06:32:12,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173360016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:12,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:32:12,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:32:12,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191496219] [2024-11-27 06:32:12,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:12,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 06:32:12,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:12,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 06:32:12,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 06:32:12,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:12,241 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:12,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-11-27 06:32:12,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:27,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 06:32:27,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:27,711 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:27,712 INFO L139 ounterexampleChecker]: Examining path program with hash 1342415016, occurence #1 [2024-11-27 06:32:27,712 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:32:27,712 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:27,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:27,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1901991554, now seen corresponding path program 1 times [2024-11-27 06:32:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:27,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587517632] [2024-11-27 06:32:27,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:27,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:32:29,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:29,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587517632] [2024-11-27 06:32:29,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587517632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:29,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:32:29,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:32:29,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579489727] [2024-11-27 06:32:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:29,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:32:29,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:29,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:32:29,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:32:29,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:29,298 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:29,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 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) [2024-11-27 06:32:29,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:29,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:29,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 06:32:29,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:29,786 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:29,786 INFO L139 ounterexampleChecker]: Examining path program with hash 1114253023, occurence #1 [2024-11-27 06:32:29,786 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:32:29,786 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:29,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:29,787 INFO L85 PathProgramCache]: Analyzing trace with hash -684157633, now seen corresponding path program 2 times [2024-11-27 06:32:29,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:29,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776474222] [2024-11-27 06:32:29,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:32:29,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:29,986 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 06:32:29,989 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:32:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:30,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:30,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776474222] [2024-11-27 06:32:30,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776474222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:30,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:32:30,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:32:30,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879045451] [2024-11-27 06:32:30,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:30,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:32:30,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:30,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:32:30,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:32:30,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:30,456 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:30,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-27 06:32:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:30,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 06:32:30,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:30,711 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:30,712 INFO L139 ounterexampleChecker]: Examining path program with hash 1114253023, occurence #2 [2024-11-27 06:32:30,712 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:32:30,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:32:30,713 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:30,713 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-27 06:32:30,714 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:30,714 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:32:30,730 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:30,730 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:32:30,730 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:30,730 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:32:30,731 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:30,731 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:32:30,731 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:30,731 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-27 06:32:30,731 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:30,731 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-27 06:32:30,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2124572837, now seen corresponding path program 1 times [2024-11-27 06:32:30,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:30,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739884760] [2024-11-27 06:32:30,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:30,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:31,170 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:31,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739884760] [2024-11-27 06:32:31,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739884760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:31,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:32:31,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:32:31,173 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 78. Constructing proof automaton... [2024-11-27 06:32:31,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:31,175 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-27 06:32:31,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:32:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-27 06:32:31,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:32:31,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:32:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:31,176 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:31,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-27 06:32:31,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:31,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:31,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:31,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:31,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 06:32:31,742 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:31,742 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:31,742 INFO L139 ounterexampleChecker]: Examining path program with hash -341345301, occurence #1 [2024-11-27 06:32:31,743 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:32:31,743 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:31,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:31,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1010086897, now seen corresponding path program 1 times [2024-11-27 06:32:31,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:31,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122082071] [2024-11-27 06:32:31,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:31,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:32,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:32,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122082071] [2024-11-27 06:32:32,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122082071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:32,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:32:32,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:32:32,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832279806] [2024-11-27 06:32:32,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:32,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:32:32,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:32,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:32:32,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:32:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:32,185 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:32,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-27 06:32:32,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:32,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:32,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:32,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:32,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:32,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 06:32:32,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:32,725 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:32,725 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #1 [2024-11-27 06:32:32,725 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:32:32,725 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:32,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:32,726 INFO L85 PathProgramCache]: Analyzing trace with hash -966561985, now seen corresponding path program 2 times [2024-11-27 06:32:32,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:32,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951073620] [2024-11-27 06:32:32,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:32:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:32,904 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 06:32:32,905 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:32:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:32:33,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:33,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951073620] [2024-11-27 06:32:33,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951073620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:33,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:32:33,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 06:32:33,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738039528] [2024-11-27 06:32:33,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:33,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:32:33,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:33,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:32:33,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:32:33,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:33,573 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:33,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-11-27 06:32:33,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:33,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:33,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:33,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:33,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:33,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:33,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 06:32:33,769 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:33,769 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:33,770 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #2 [2024-11-27 06:32:33,772 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:32:33,773 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:32:33,773 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:33,773 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-27 06:32:33,773 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:33,773 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:32:33,773 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:33,773 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:32:33,773 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:33,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:32:33,774 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:33,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:32:33,774 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:33,774 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-27 06:32:34,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1958245184, now seen corresponding path program 1 times [2024-11-27 06:32:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:34,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687536242] [2024-11-27 06:32:34,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:34,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:32:34,079 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:32:34,080 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:32:34,080 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 85 [2024-11-27 06:32:34,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:34,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1197751949, now seen corresponding path program 1 times [2024-11-27 06:32:34,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:34,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846404870] [2024-11-27 06:32:34,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:34,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:34,965 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:34,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846404870] [2024-11-27 06:32:34,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846404870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:34,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1052588853] [2024-11-27 06:32:34,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:34,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:35,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:35,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:35,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1052588853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:35,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:35,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:35,282 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:35,282 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-27 06:32:35,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:35,310 INFO L85 PathProgramCache]: Analyzing trace with hash -11748603, now seen corresponding path program 1 times [2024-11-27 06:32:35,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:35,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580486599] [2024-11-27 06:32:35,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:35,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:35,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:35,933 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:35,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580486599] [2024-11-27 06:32:35,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580486599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:35,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1568353810] [2024-11-27 06:32:35,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:35,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:36,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:36,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:36,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1568353810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:36,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:36,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:36,188 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:36,188 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2024-11-27 06:32:36,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:36,219 INFO L85 PathProgramCache]: Analyzing trace with hash -364210677, now seen corresponding path program 1 times [2024-11-27 06:32:36,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:36,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169538056] [2024-11-27 06:32:36,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:36,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:36,777 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:36,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169538056] [2024-11-27 06:32:36,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169538056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:36,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [149118816] [2024-11-27 06:32:36,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:36,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:36,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:36,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:32:37,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [149118816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:37,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:37,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:37,031 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:37,031 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2024-11-27 06:32:37,031 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:37,031 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 129 is hopeless, skipping. [2024-11-27 06:32:37,031 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 131 is hopeless, skipping. [2024-11-27 06:32:37,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 142 [2024-11-27 06:32:37,032 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:37,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 147 [2024-11-27 06:32:37,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:37,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1755660165, now seen corresponding path program 1 times [2024-11-27 06:32:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:37,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21442649] [2024-11-27 06:32:37,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:37,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:32:38,235 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:38,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21442649] [2024-11-27 06:32:38,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21442649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:38,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [911601833] [2024-11-27 06:32:38,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:38,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:38,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:32:38,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:32:38,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [911601833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:38,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:38,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:32:38,702 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:38,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 155 [2024-11-27 06:32:38,703 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:38,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 158 [2024-11-27 06:32:38,703 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:38,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2024-11-27 06:32:38,703 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:38,703 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:32:38,703 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:38,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:38,704 INFO L85 PathProgramCache]: Analyzing trace with hash -811915666, now seen corresponding path program 1 times [2024-11-27 06:32:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902608293] [2024-11-27 06:32:38,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:32:39,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:39,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902608293] [2024-11-27 06:32:39,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902608293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:39,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592689266] [2024-11-27 06:32:39,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:39,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:32:39,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:32:39,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:32:39,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:32:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:40,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 06:32:40,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:40,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:32:40,323 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:32:40,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592689266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:40,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:32:40,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-27 06:32:40,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662120628] [2024-11-27 06:32:40,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:40,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:32:40,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:40,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:32:40,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 06:32:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:40,325 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:40,328 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), 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) [2024-11-27 06:32:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:40,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:40,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:40,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:40,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:40,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 06:32:40,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15 [2024-11-27 06:32:40,734 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:40,735 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:40,735 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #3 [2024-11-27 06:32:40,735 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:32:40,735 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:32:40,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:40,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-27 06:32:40,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:40,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-27 06:32:40,736 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:40,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-27 06:32:40,736 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:40,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:32:40,736 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:40,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:32:40,737 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:40,737 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:32:40,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:40,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1752971988, now seen corresponding path program 1 times [2024-11-27 06:32:40,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:40,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256415148] [2024-11-27 06:32:40,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:40,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:32:41,016 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:32:41,016 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:32:41,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2024-11-27 06:32:41,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash 959058489, now seen corresponding path program 1 times [2024-11-27 06:32:41,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:41,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920990940] [2024-11-27 06:32:41,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:32:41,819 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:41,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920990940] [2024-11-27 06:32:41,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920990940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:41,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1071091444] [2024-11-27 06:32:41,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:41,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:41,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:41,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:32:42,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1071091444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:42,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:42,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:42,063 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:42,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2024-11-27 06:32:42,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:42,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1762911375, now seen corresponding path program 1 times [2024-11-27 06:32:42,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:42,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075746904] [2024-11-27 06:32:42,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:42,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:32:42,574 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:42,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075746904] [2024-11-27 06:32:42,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075746904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:42,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [376838549] [2024-11-27 06:32:42,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:42,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:42,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:42,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:42,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:32:42,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [376838549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:42,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:42,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:42,816 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:42,816 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-27 06:32:42,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:42,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1184317789, now seen corresponding path program 1 times [2024-11-27 06:32:42,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:42,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393286488] [2024-11-27 06:32:42,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:42,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:32:43,434 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:43,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393286488] [2024-11-27 06:32:43,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393286488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:43,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1201916928] [2024-11-27 06:32:43,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:43,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:43,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:32:43,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1201916928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:43,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:43,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:43,671 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:43,671 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2024-11-27 06:32:43,673 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:43,673 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 130 is hopeless, skipping. [2024-11-27 06:32:43,673 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 132 is hopeless, skipping. [2024-11-27 06:32:43,673 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 143 [2024-11-27 06:32:43,673 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:43,673 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 148 [2024-11-27 06:32:43,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash 929394535, now seen corresponding path program 1 times [2024-11-27 06:32:43,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:43,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484438276] [2024-11-27 06:32:43,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:43,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:44,591 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:44,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484438276] [2024-11-27 06:32:44,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484438276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:44,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1585661599] [2024-11-27 06:32:44,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:44,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:44,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:32:44,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1585661599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:45,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:45,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:32:45,136 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:45,136 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 156 [2024-11-27 06:32:45,136 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:45,137 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2024-11-27 06:32:45,137 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:45,138 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2024-11-27 06:32:45,138 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:45,138 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:32:45,138 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:45,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash -562926287, now seen corresponding path program 1 times [2024-11-27 06:32:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:45,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347173102] [2024-11-27 06:32:45,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:45,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:46,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347173102] [2024-11-27 06:32:46,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347173102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289223005] [2024-11-27 06:32:46,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:46,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:32:46,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:32:46,265 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:32:46,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:32:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:46,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 06:32:46,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:46,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:32:46,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289223005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:32:46,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:32:46,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-27 06:32:46,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320184682] [2024-11-27 06:32:46,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:32:46,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:32:46,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:46,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:32:46,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 06:32:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:46,897 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:46,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:46,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:47,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 06:32:47,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-11-27 06:32:47,311 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:47,311 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:47,312 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #4 [2024-11-27 06:32:47,312 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:32:47,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:32:47,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:47,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-27 06:32:47,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:47,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:32:47,314 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:47,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:32:47,315 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:47,315 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:32:47,315 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:47,315 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:32:47,315 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:47,315 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:32:47,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1272094128, now seen corresponding path program 1 times [2024-11-27 06:32:47,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:47,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906139427] [2024-11-27 06:32:47,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:32:47,600 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:32:47,600 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:32:47,601 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-27 06:32:47,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:47,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1473347197, now seen corresponding path program 1 times [2024-11-27 06:32:47,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:47,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876128222] [2024-11-27 06:32:47,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:47,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:48,332 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:48,333 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:48,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876128222] [2024-11-27 06:32:48,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876128222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:48,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1853188285] [2024-11-27 06:32:48,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:48,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:48,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:48,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:48,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1853188285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:48,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:48,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:48,551 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:48,551 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-27 06:32:48,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:48,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1452716427, now seen corresponding path program 1 times [2024-11-27 06:32:48,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:48,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236766411] [2024-11-27 06:32:48,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:48,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:49,041 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:49,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236766411] [2024-11-27 06:32:49,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236766411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:49,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2113167097] [2024-11-27 06:32:49,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:49,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:49,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:49,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:49,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2113167097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:49,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:49,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:49,258 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:49,259 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2024-11-27 06:32:49,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:49,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2084541161, now seen corresponding path program 1 times [2024-11-27 06:32:49,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:49,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328435542] [2024-11-27 06:32:49,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:49,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:49,762 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:49,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328435542] [2024-11-27 06:32:49,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328435542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:49,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [355933332] [2024-11-27 06:32:49,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:49,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:49,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:49,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:50,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [355933332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:50,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:50,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 06:32:50,036 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:50,036 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2024-11-27 06:32:50,037 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:50,037 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 131 is hopeless, skipping. [2024-11-27 06:32:50,037 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 133 is hopeless, skipping. [2024-11-27 06:32:50,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 144 [2024-11-27 06:32:50,037 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:50,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 149 [2024-11-27 06:32:50,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:50,070 INFO L85 PathProgramCache]: Analyzing trace with hash 340671723, now seen corresponding path program 1 times [2024-11-27 06:32:50,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:50,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912941282] [2024-11-27 06:32:50,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:50,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:32:50,830 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:50,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912941282] [2024-11-27 06:32:50,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912941282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:50,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [336908697] [2024-11-27 06:32:50,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:50,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:50,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:32:50,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:32:51,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [336908697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:51,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:51,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:32:51,269 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:51,269 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 157 [2024-11-27 06:32:51,270 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:51,270 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2024-11-27 06:32:51,270 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:51,270 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 162 [2024-11-27 06:32:51,270 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:51,270 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:32:51,270 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:51,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:51,271 INFO L85 PathProgramCache]: Analyzing trace with hash 390699100, now seen corresponding path program 1 times [2024-11-27 06:32:51,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:51,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978780633] [2024-11-27 06:32:51,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:51,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:32:52,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:32:52,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978780633] [2024-11-27 06:32:52,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978780633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:52,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531082298] [2024-11-27 06:32:52,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:52,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:32:52,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:32:52,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:32:52,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 06:32:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:52,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:52,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:52,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:52,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:32:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 06:32:53,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531082298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:32:53,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:32:53,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-27 06:32:53,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113037009] [2024-11-27 06:32:53,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:32:53,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 06:32:53,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:32:53,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 06:32:53,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-27 06:32:53,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:53,023 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:32:53,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 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) [2024-11-27 06:32:53,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:53,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:53,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:53,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:53,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:53,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:53,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:53,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:53,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:53,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:32:53,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:32:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:32:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:32:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:32:53,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 06:32:53,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27,SelfDestructingSolverStorable28 [2024-11-27 06:32:53,825 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:32:53,825 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:32:53,826 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #5 [2024-11-27 06:32:53,826 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:32:53,826 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:32:53,826 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:53,826 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-27 06:32:53,826 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:53,826 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:32:53,827 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:53,827 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:32:53,827 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:53,827 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:32:53,827 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:53,827 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:32:53,827 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:53,827 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-27 06:32:54,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:54,075 INFO L85 PathProgramCache]: Analyzing trace with hash 182484679, now seen corresponding path program 1 times [2024-11-27 06:32:54,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:54,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130755775] [2024-11-27 06:32:54,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:54,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:32:54,141 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:32:54,142 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:32:54,142 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2024-11-27 06:32:54,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:54,391 INFO L85 PathProgramCache]: Analyzing trace with hash -371790828, now seen corresponding path program 1 times [2024-11-27 06:32:54,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:54,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82543315] [2024-11-27 06:32:54,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:54,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:54,934 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82543315] [2024-11-27 06:32:54,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82543315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1280107773] [2024-11-27 06:32:54,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:54,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:55,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:55,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:55,235 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:55,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1280107773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:55,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:55,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-27 06:32:55,236 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:55,236 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2024-11-27 06:32:55,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:55,277 INFO L85 PathProgramCache]: Analyzing trace with hash -808881524, now seen corresponding path program 1 times [2024-11-27 06:32:55,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:55,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428371636] [2024-11-27 06:32:55,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:55,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:55,878 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:55,878 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:55,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428371636] [2024-11-27 06:32:55,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428371636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:55,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [126991896] [2024-11-27 06:32:55,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:55,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:55,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:55,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:56,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [126991896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:56,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:56,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-27 06:32:56,112 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:56,112 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2024-11-27 06:32:56,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash 694471138, now seen corresponding path program 1 times [2024-11-27 06:32:56,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:56,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934614049] [2024-11-27 06:32:56,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:56,553 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:56,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934614049] [2024-11-27 06:32:56,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934614049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:56,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1681421529] [2024-11-27 06:32:56,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:56,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:56,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:32:56,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:32:56,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1681421529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:56,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:56,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-27 06:32:56,804 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:56,805 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2024-11-27 06:32:56,805 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:56,805 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 132 is hopeless, skipping. [2024-11-27 06:32:56,805 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 134 is hopeless, skipping. [2024-11-27 06:32:56,806 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-11-27 06:32:56,807 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:56,807 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 150 [2024-11-27 06:32:56,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:56,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1409426434, now seen corresponding path program 1 times [2024-11-27 06:32:56,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:32:56,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067965807] [2024-11-27 06:32:56,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:56,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:57,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:32:57,647 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:32:57,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067965807] [2024-11-27 06:32:57,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067965807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:57,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [955078152] [2024-11-27 06:32:57,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:32:57,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:32:57,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:32:57,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:32:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:32:58,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [955078152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:32:58,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:32:58,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 06:32:58,216 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:32:58,216 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 158 [2024-11-27 06:32:58,216 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:58,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2024-11-27 06:32:58,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:32:58,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 163 [2024-11-27 06:32:58,218 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:32:58,218 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:32:58,218 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:32:58,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:32:58,219 INFO L85 PathProgramCache]: Analyzing trace with hash 309059094, now seen corresponding path program 2 times [2024-11-27 06:32:58,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:32:58,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141870431] [2024-11-27 06:32:58,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:32:58,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:32:59,391 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:32:59,392 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 06:33:00,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:00,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141870431] [2024-11-27 06:33:00,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141870431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:00,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369694979] [2024-11-27 06:33:00,562 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:33:00,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:00,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:00,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:00,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 06:33:01,879 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:33:01,879 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:01,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 06:33:01,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:33:03,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:33:04,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369694979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:04,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:33:04,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 45 [2024-11-27 06:33:04,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064996391] [2024-11-27 06:33:04,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:04,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-27 06:33:04,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:04,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-27 06:33:04,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1533, Unknown=0, NotChecked=0, Total=1980 [2024-11-27 06:33:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:04,071 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:04,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 9.444444444444445) internal successors, (425), 45 states have internal predecessors, (425), 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) [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:04,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:04,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:04,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:04,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 06:33:05,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40,SelfDestructingSolverStorable41,SelfDestructingSolverStorable42,SelfDestructingSolverStorable43,SelfDestructingSolverStorable44,SelfDestructingSolverStorable45,SelfDestructingSolverStorable36,SelfDestructingSolverStorable37,SelfDestructingSolverStorable38,SelfDestructingSolverStorable39 [2024-11-27 06:33:05,174 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:05,174 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:05,175 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #6 [2024-11-27 06:33:05,176 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:33:05,176 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:33:05,176 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:05,176 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:33:05,176 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:05,176 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:33:05,176 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:05,176 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:33:05,177 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:05,177 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:33:05,177 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:05,177 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-27 06:33:05,177 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:05,177 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-27 06:33:05,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:05,393 INFO L85 PathProgramCache]: Analyzing trace with hash -533471833, now seen corresponding path program 1 times [2024-11-27 06:33:05,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:05,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426674530] [2024-11-27 06:33:05,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:05,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:33:05,535 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:33:05,538 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:33:05,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2024-11-27 06:33:05,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:05,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1191506868, now seen corresponding path program 1 times [2024-11-27 06:33:05,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:05,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859048688] [2024-11-27 06:33:05,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:05,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 06:33:06,252 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:06,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859048688] [2024-11-27 06:33:06,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859048688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:06,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1231627961] [2024-11-27 06:33:06,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:06,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:06,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:06,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:06,617 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 06:33:06,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1231627961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:06,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:06,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 06:33:06,618 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:06,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2024-11-27 06:33:06,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1718363668, now seen corresponding path program 1 times [2024-11-27 06:33:06,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:06,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472419815] [2024-11-27 06:33:06,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:06,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:07,142 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 06:33:07,143 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:07,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472419815] [2024-11-27 06:33:07,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472419815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:07,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [912627759] [2024-11-27 06:33:07,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:07,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:07,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:07,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 06:33:07,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [912627759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:07,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:07,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-27 06:33:07,546 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:07,546 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-11-27 06:33:07,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:07,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1729672000, now seen corresponding path program 1 times [2024-11-27 06:33:07,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:07,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009843258] [2024-11-27 06:33:07,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:07,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:33:08,606 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009843258] [2024-11-27 06:33:08,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009843258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [335393698] [2024-11-27 06:33:08,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:08,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:08,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 06:33:08,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:33:09,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [335393698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:09,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 06:33:09,250 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:09,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2024-11-27 06:33:09,250 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:09,251 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 137 is hopeless, skipping. [2024-11-27 06:33:09,251 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 139 is hopeless, skipping. [2024-11-27 06:33:09,251 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 150 [2024-11-27 06:33:09,251 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:09,251 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 155 [2024-11-27 06:33:09,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:09,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1785211934, now seen corresponding path program 1 times [2024-11-27 06:33:09,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:09,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953428512] [2024-11-27 06:33:09,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:09,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 06:33:10,556 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:10,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953428512] [2024-11-27 06:33:10,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953428512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:10,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1242435354] [2024-11-27 06:33:10,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:10,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:10,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 06:33:10,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 06:33:11,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1242435354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:11,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:11,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2024-11-27 06:33:11,444 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:11,444 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 163 [2024-11-27 06:33:11,444 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:11,444 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2024-11-27 06:33:11,444 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:11,444 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 168 [2024-11-27 06:33:11,444 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:11,444 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:33:11,444 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:11,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1037850011, now seen corresponding path program 3 times [2024-11-27 06:33:11,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:11,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919079787] [2024-11-27 06:33:11,445 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:33:11,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:12,197 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:33:12,198 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 06:33:13,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:13,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919079787] [2024-11-27 06:33:13,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919079787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:13,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249166077] [2024-11-27 06:33:13,298 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:33:13,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:13,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:13,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:13,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 06:33:14,124 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:33:14,124 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:14,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 06:33:14,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 06:33:14,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 06:33:15,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249166077] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:15,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:33:15,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31 [2024-11-27 06:33:15,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313732155] [2024-11-27 06:33:15,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:15,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-27 06:33:15,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:15,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-27 06:33:15,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2024-11-27 06:33:15,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:15,562 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:15,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 13.35483870967742) internal successors, (414), 31 states have internal predecessors, (414), 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) [2024-11-27 06:33:15,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:15,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:15,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:15,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:15,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:15,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:15,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:15,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:15,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:15,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:15,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:16,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 06:33:16,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,SelfDestructingSolverStorable51,SelfDestructingSolverStorable52,SelfDestructingSolverStorable53,SelfDestructingSolverStorable54,SelfDestructingSolverStorable55,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46,SelfDestructingSolverStorable47,SelfDestructingSolverStorable48,SelfDestructingSolverStorable49 [2024-11-27 06:33:16,711 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:16,711 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:16,711 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #7 [2024-11-27 06:33:16,711 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:33:16,711 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:33:16,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:16,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:33:16,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:16,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:33:16,712 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:16,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-27 06:33:16,712 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:16,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:33:16,712 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:16,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:33:16,712 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:16,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-27 06:33:16,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash 630757910, now seen corresponding path program 1 times [2024-11-27 06:33:16,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:16,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192402045] [2024-11-27 06:33:16,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:16,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:33:16,959 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:33:16,959 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:33:16,959 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 97 [2024-11-27 06:33:17,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash 234059811, now seen corresponding path program 1 times [2024-11-27 06:33:17,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:17,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138428238] [2024-11-27 06:33:17,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:17,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-27 06:33:17,598 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:17,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138428238] [2024-11-27 06:33:17,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138428238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:17,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [114871245] [2024-11-27 06:33:17,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:17,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:17,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:17,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-27 06:33:17,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [114871245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:17,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:17,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 06:33:17,982 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:17,982 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2024-11-27 06:33:18,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:18,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1592968795, now seen corresponding path program 1 times [2024-11-27 06:33:18,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:18,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438157372] [2024-11-27 06:33:18,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:18,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-27 06:33:18,572 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:18,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438157372] [2024-11-27 06:33:18,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438157372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [871945826] [2024-11-27 06:33:18,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:18,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:18,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:18,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-27 06:33:18,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [871945826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:18,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:18,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-27 06:33:18,934 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:18,934 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2024-11-27 06:33:18,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2137386095, now seen corresponding path program 1 times [2024-11-27 06:33:18,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:18,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097320280] [2024-11-27 06:33:18,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:18,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 06:33:19,483 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:19,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097320280] [2024-11-27 06:33:19,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097320280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:19,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1962173595] [2024-11-27 06:33:19,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:19,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 06:33:19,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:20,123 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 06:33:20,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1962173595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:20,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:20,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 06:33:20,123 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:20,123 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 111 [2024-11-27 06:33:20,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:20,124 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 141 is hopeless, skipping. [2024-11-27 06:33:20,124 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 143 is hopeless, skipping. [2024-11-27 06:33:20,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 154 [2024-11-27 06:33:20,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:20,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2024-11-27 06:33:20,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash 638120017, now seen corresponding path program 1 times [2024-11-27 06:33:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:20,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505020916] [2024-11-27 06:33:20,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:20,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 06:33:21,054 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:21,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505020916] [2024-11-27 06:33:21,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505020916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:21,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [568753519] [2024-11-27 06:33:21,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:21,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:21,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 06:33:21,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-27 06:33:21,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [568753519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:21,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:21,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2024-11-27 06:33:21,783 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:21,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 167 [2024-11-27 06:33:21,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:21,783 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 170 [2024-11-27 06:33:21,783 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:21,784 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 172 [2024-11-27 06:33:21,784 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:21,784 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:33:21,784 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:21,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1388127739, now seen corresponding path program 4 times [2024-11-27 06:33:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635012447] [2024-11-27 06:33:21,784 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:33:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:21,900 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:33:21,900 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 06:33:23,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:23,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635012447] [2024-11-27 06:33:23,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635012447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:23,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036632707] [2024-11-27 06:33:23,967 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:33:23,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:23,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:23,970 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:23,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 06:33:24,725 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:33:24,725 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:24,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 06:33:24,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 06:33:26,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 06:33:27,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036632707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:27,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:33:27,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2024-11-27 06:33:27,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466709019] [2024-11-27 06:33:27,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:27,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-11-27 06:33:27,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:27,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-11-27 06:33:27,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1323, Invalid=3507, Unknown=0, NotChecked=0, Total=4830 [2024-11-27 06:33:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:27,188 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:27,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 6.3428571428571425) internal successors, (444), 69 states have internal predecessors, (444), 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) [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:27,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:27,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 06:33:28,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,SelfDestructingSolverStorable61,SelfDestructingSolverStorable62,SelfDestructingSolverStorable63,SelfDestructingSolverStorable64,SelfDestructingSolverStorable65,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56,SelfDestructingSolverStorable57,SelfDestructingSolverStorable58,SelfDestructingSolverStorable59 [2024-11-27 06:33:28,003 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:28,003 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:28,003 INFO L139 ounterexampleChecker]: Examining path program with hash 1485300433, occurence #8 [2024-11-27 06:33:28,004 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:33:28,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:33:28,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:28,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-27 06:33:28,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:28,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-27 06:33:28,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:28,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-27 06:33:28,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:28,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-27 06:33:28,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:28,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-27 06:33:28,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:28,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-27 06:33:28,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:28,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1484406053, now seen corresponding path program 1 times [2024-11-27 06:33:28,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:28,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147724702] [2024-11-27 06:33:28,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:28,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:33:28,520 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:33:28,520 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:33:28,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2024-11-27 06:33:28,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:28,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1995660082, now seen corresponding path program 1 times [2024-11-27 06:33:28,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:28,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413787508] [2024-11-27 06:33:28,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:28,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:29,268 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:29,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413787508] [2024-11-27 06:33:29,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413787508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [828742436] [2024-11-27 06:33:29,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:29,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:29,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:29,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:29,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [828742436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:29,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:29,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 06:33:29,675 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:29,675 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2024-11-27 06:33:29,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2021267094, now seen corresponding path program 1 times [2024-11-27 06:33:29,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:29,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384954399] [2024-11-27 06:33:29,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:29,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:30,235 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:30,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384954399] [2024-11-27 06:33:30,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384954399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:30,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1142722227] [2024-11-27 06:33:30,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:30,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:30,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:30,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:30,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1142722227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:30,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:30,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-27 06:33:30,570 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:30,570 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2024-11-27 06:33:30,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:30,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1765222782, now seen corresponding path program 1 times [2024-11-27 06:33:30,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:30,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202888078] [2024-11-27 06:33:30,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:30,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:31,109 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:31,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202888078] [2024-11-27 06:33:31,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202888078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:31,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1450043045] [2024-11-27 06:33:31,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:31,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:31,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:31,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:31,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1450043045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:31,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:31,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-27 06:33:31,519 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:31,519 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-11-27 06:33:31,519 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:31,520 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 149 is hopeless, skipping. [2024-11-27 06:33:31,520 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 151 is hopeless, skipping. [2024-11-27 06:33:31,520 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 162 [2024-11-27 06:33:31,520 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:31,520 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 167 [2024-11-27 06:33:31,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1928490144, now seen corresponding path program 1 times [2024-11-27 06:33:31,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:31,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86234578] [2024-11-27 06:33:31,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:31,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-27 06:33:32,324 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:33:32,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86234578] [2024-11-27 06:33:32,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86234578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:32,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [402233727] [2024-11-27 06:33:32,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:32,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:32,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 06:33:32,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-27 06:33:33,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [402233727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:33,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:33,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2024-11-27 06:33:33,067 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:33,067 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 175 [2024-11-27 06:33:33,067 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:33,067 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 178 [2024-11-27 06:33:33,067 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:33,067 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2024-11-27 06:33:33,067 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:33,068 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:33:33,068 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:33,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:33,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1850173691, now seen corresponding path program 5 times [2024-11-27 06:33:33,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:33,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654717750] [2024-11-27 06:33:33,068 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:33:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:33,188 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-11-27 06:33:33,188 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:33,609 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:33,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:33,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654717750] [2024-11-27 06:33:33,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654717750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:33:33,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:33:33,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 06:33:33,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546099486] [2024-11-27 06:33:33,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:33:33,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 06:33:33,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:33,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 06:33:33,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 06:33:33,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:33,612 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:33,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-27 06:33:33,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:33,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:33,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:33,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:33,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:33,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:33,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:33,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:34,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:34,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,SelfDestructingSolverStorable71,SelfDestructingSolverStorable72,SelfDestructingSolverStorable73,SelfDestructingSolverStorable74,SelfDestructingSolverStorable75,SelfDestructingSolverStorable66,SelfDestructingSolverStorable67,SelfDestructingSolverStorable68,SelfDestructingSolverStorable69 [2024-11-27 06:33:34,167 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:34,167 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:34,168 INFO L139 ounterexampleChecker]: Examining path program with hash -953894322, occurence #1 [2024-11-27 06:33:34,168 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:34,168 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:34,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:34,168 INFO L85 PathProgramCache]: Analyzing trace with hash -200983264, now seen corresponding path program 6 times [2024-11-27 06:33:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:34,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257841066] [2024-11-27 06:33:34,169 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:33:34,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:37,698 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-27 06:33:37,698 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:37,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:37,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257841066] [2024-11-27 06:33:37,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257841066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:33:37,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:33:37,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:33:37,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071088468] [2024-11-27 06:33:37,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:33:37,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:33:37,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:37,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:33:37,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:33:37,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:37,966 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-11-27 06:33:37,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:37,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:37,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:37,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:37,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:37,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:37,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:38,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-27 06:33:38,275 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:38,275 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:38,276 INFO L139 ounterexampleChecker]: Examining path program with hash -999552237, occurence #1 [2024-11-27 06:33:38,276 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:38,276 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:38,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash -919033343, now seen corresponding path program 7 times [2024-11-27 06:33:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:38,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593006744] [2024-11-27 06:33:38,277 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:33:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 06:33:39,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:39,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593006744] [2024-11-27 06:33:39,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593006744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:39,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966121611] [2024-11-27 06:33:39,598 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:33:39,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:39,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:39,600 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:39,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 06:33:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:40,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 1592 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 06:33:40,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:40,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:33:40,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966121611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:33:40,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:33:40,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-27 06:33:40,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621224792] [2024-11-27 06:33:40,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:33:40,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:33:40,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:40,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:33:40,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-27 06:33:40,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:40,826 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:40,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-11-27 06:33:40,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:40,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:40,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:40,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:40,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:40,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:40,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:40,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:41,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 06:33:41,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-27 06:33:41,366 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:41,366 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:41,366 INFO L139 ounterexampleChecker]: Examining path program with hash 909462492, occurence #1 [2024-11-27 06:33:41,366 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:41,366 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:41,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:41,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1713055418, now seen corresponding path program 8 times [2024-11-27 06:33:41,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:41,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502592775] [2024-11-27 06:33:41,367 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:33:41,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:41,530 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:33:41,530 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-27 06:33:42,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:42,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502592775] [2024-11-27 06:33:42,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502592775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:42,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298506406] [2024-11-27 06:33:42,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:33:42,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:42,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:42,202 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:42,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 06:33:43,133 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:33:43,133 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:43,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 06:33:43,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 06:33:43,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 06:33:44,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298506406] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:44,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:33:44,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 24 [2024-11-27 06:33:44,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55636350] [2024-11-27 06:33:44,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:44,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 06:33:44,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:44,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 06:33:44,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2024-11-27 06:33:44,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:44,177 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:44,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.625) internal successors, (255), 24 states have internal predecessors, (255), 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) [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:44,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:45,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:45,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:45,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:45,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:45,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:45,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 06:33:45,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 06:33:45,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:45,797 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:45,797 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:45,797 INFO L139 ounterexampleChecker]: Examining path program with hash 1339843836, occurence #1 [2024-11-27 06:33:45,797 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:45,797 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:45,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2024297746, now seen corresponding path program 9 times [2024-11-27 06:33:45,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:45,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422732159] [2024-11-27 06:33:45,798 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:33:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:45,959 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:33:45,959 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-27 06:33:46,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:46,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422732159] [2024-11-27 06:33:46,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422732159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:33:46,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:33:46,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 06:33:46,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627553930] [2024-11-27 06:33:46,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:33:46,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 06:33:46,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:46,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 06:33:46,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-27 06:33:46,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:46,486 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:46,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-11-27 06:33:46,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 06:33:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:46,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-27 06:33:46,992 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:46,992 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:46,993 INFO L139 ounterexampleChecker]: Examining path program with hash 1262298279, occurence #1 [2024-11-27 06:33:46,993 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:46,993 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:46,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:46,993 INFO L85 PathProgramCache]: Analyzing trace with hash -782932498, now seen corresponding path program 10 times [2024-11-27 06:33:46,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:33:46,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17653972] [2024-11-27 06:33:46,994 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:33:46,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:33:47,155 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:33:47,155 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 95 proven. 110 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 06:33:50,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:33:50,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17653972] [2024-11-27 06:33:50,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17653972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:50,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405175217] [2024-11-27 06:33:50,236 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:33:50,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:50,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:50,238 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:50,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 06:33:51,306 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:33:51,306 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:51,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-27 06:33:51,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 100 proven. 105 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 06:33:54,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:57,480 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 95 proven. 110 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 06:33:57,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405175217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:57,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:33:57,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 129 [2024-11-27 06:33:57,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917297163] [2024-11-27 06:33:57,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:57,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-11-27 06:33:57,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:33:57,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-11-27 06:33:57,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4325, Invalid=12445, Unknown=0, NotChecked=0, Total=16770 [2024-11-27 06:33:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:57,489 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:57,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.123076923076923) internal successors, (666), 129 states have internal predecessors, (666), 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) [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:57,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:57,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:57,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:57,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:57,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:57,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-11-27 06:33:57,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:57,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:33:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 06:33:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:58,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-27 06:33:58,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 06:33:59,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:59,046 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 06:33:59,046 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:59,046 INFO L139 ounterexampleChecker]: Examining path program with hash 1262298279, occurence #2 [2024-11-27 06:33:59,046 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:33:59,046 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:33:59,046 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:59,046 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-27 06:33:59,046 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:59,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2024-11-27 06:33:59,047 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:59,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-27 06:33:59,047 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:59,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-27 06:33:59,047 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:59,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2024-11-27 06:33:59,047 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:59,047 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-11-27 06:33:59,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:59,232 INFO L85 PathProgramCache]: Analyzing trace with hash 532826445, now seen corresponding path program 1 times [2024-11-27 06:33:59,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:33:59,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973382746] [2024-11-27 06:33:59,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:59,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:34:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 06:34:00,163 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-27 06:34:00,163 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-27 06:34:00,163 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 84 is hopeless, skipping. [2024-11-27 06:34:00,163 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 157 [2024-11-27 06:34:00,164 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:00,164 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 185 is hopeless, skipping. [2024-11-27 06:34:00,164 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 204 [2024-11-27 06:34:00,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:34:00,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1648863181, now seen corresponding path program 1 times [2024-11-27 06:34:00,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:34:00,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332076152] [2024-11-27 06:34:00,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:34:00,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:34:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:34:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-11-27 06:34:01,157 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:34:01,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332076152] [2024-11-27 06:34:01,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332076152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:34:01,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1757998993] [2024-11-27 06:34:01,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:34:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:34:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:34:01,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 06:34:01,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:34:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-11-27 06:34:02,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1757998993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:34:02,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:34:02,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-11-27 06:34:02,003 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:34:02,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2024-11-27 06:34:02,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:02,004 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 248 is hopeless, skipping. [2024-11-27 06:34:02,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 256 [2024-11-27 06:34:02,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:02,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 259 [2024-11-27 06:34:02,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:02,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 261 [2024-11-27 06:34:02,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:34:02,004 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:34:02,004 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:34:02,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:34:02,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1796560082, now seen corresponding path program 11 times [2024-11-27 06:34:02,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:34:02,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485794448] [2024-11-27 06:34:02,005 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:34:02,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:34:03,153 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-11-27 06:34:03,153 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:34:04,397 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-11-27 06:34:04,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:34:04,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485794448] [2024-11-27 06:34:04,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485794448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:34:04,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277208355] [2024-11-27 06:34:04,397 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:34:04,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:34:04,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:34:04,400 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:34:04,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_808b8c24-7566-4dd0-869e-5e502c745451/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process