/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:28:00,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:28:00,672 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-29 19:28:00,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:28:00,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:28:00,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:28:00,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:28:00,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:28:00,702 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:28:00,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:28:00,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:28:00,703 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:28:00,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:28:00,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:28:00,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:28:00,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:28:00,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:28:00,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:28:00,705 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:28:00,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:28:00,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:28:00,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:28:00,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:28:00,710 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:28:00,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:28:00,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:28:00,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:28:00,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:28:00,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:28:00,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:28:00,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:28:00,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:28:00,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:28:00,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:28:00,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:28:00,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:28:00,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:28:00,930 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:28:00,930 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:28:00,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2023-11-29 19:28:01,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:28:02,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:28:02,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2023-11-29 19:28:02,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf3278c9/c35d10983e2c4be8b2d0ee3a38df2685/FLAG6351d5fab [2023-11-29 19:28:02,093 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf3278c9/c35d10983e2c4be8b2d0ee3a38df2685 [2023-11-29 19:28:02,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:28:02,096 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:28:02,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:28:02,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:28:02,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:28:02,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad62e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02, skipping insertion in model container [2023-11-29 19:28:02,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:28:02,374 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30535,30548] [2023-11-29 19:28:02,380 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30687,30700] [2023-11-29 19:28:02,387 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31414,31427] [2023-11-29 19:28:02,390 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31599,31612] [2023-11-29 19:28:02,392 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31752,31765] [2023-11-29 19:28:02,398 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32141,32154] [2023-11-29 19:28:02,400 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32327,32340] [2023-11-29 19:28:02,401 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32488,32501] [2023-11-29 19:28:02,403 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32646,32659] [2023-11-29 19:28:02,404 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32802,32815] [2023-11-29 19:28:02,405 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[33149,33162] [2023-11-29 19:28:02,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:28:02,430 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:28:02,478 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30535,30548] [2023-11-29 19:28:02,479 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30687,30700] [2023-11-29 19:28:02,480 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31414,31427] [2023-11-29 19:28:02,481 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31599,31612] [2023-11-29 19:28:02,481 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31752,31765] [2023-11-29 19:28:02,482 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32141,32154] [2023-11-29 19:28:02,483 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32327,32340] [2023-11-29 19:28:02,484 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32488,32501] [2023-11-29 19:28:02,487 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32646,32659] [2023-11-29 19:28:02,488 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32802,32815] [2023-11-29 19:28:02,489 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[33149,33162] [2023-11-29 19:28:02,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:28:02,522 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:28:02,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02 WrapperNode [2023-11-29 19:28:02,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:28:02,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:28:02,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:28:02,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:28:02,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,574 INFO L138 Inliner]: procedures = 174, calls = 65, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 330 [2023-11-29 19:28:02,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:28:02,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:28:02,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:28:02,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:28:02,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:28:02,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:28:02,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:28:02,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:28:02,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (1/1) ... [2023-11-29 19:28:02,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:28:02,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:28:02,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-29 19:28:02,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-29 19:28:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:28:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 19:28:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:28:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:28:02,692 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 19:28:02,818 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:28:02,820 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:28:03,104 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:28:03,168 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:28:03,169 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 19:28:03,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:28:03 BoogieIcfgContainer [2023-11-29 19:28:03,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:28:03,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:28:03,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:28:03,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:28:03,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:28:02" (1/3) ... [2023-11-29 19:28:03,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795925e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:28:03, skipping insertion in model container [2023-11-29 19:28:03,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:28:02" (2/3) ... [2023-11-29 19:28:03,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795925e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:28:03, skipping insertion in model container [2023-11-29 19:28:03,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:28:03" (3/3) ... [2023-11-29 19:28:03,179 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2023-11-29 19:28:03,191 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:28:03,191 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-29 19:28:03,191 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:28:03,276 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:28:03,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 327 transitions, 658 flow [2023-11-29 19:28:03,384 INFO L124 PetriNetUnfolderBase]: 44/338 cut-off events. [2023-11-29 19:28:03,385 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:28:03,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 338 events. 44/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1260 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 296. Up to 10 conditions per place. [2023-11-29 19:28:03,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 287 places, 327 transitions, 658 flow [2023-11-29 19:28:03,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 327 transitions, 658 flow [2023-11-29 19:28:03,404 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:28:03,412 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66ba275d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:28:03,413 INFO L363 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-29 19:28:03,424 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:28:03,424 INFO L124 PetriNetUnfolderBase]: 3/64 cut-off events. [2023-11-29 19:28:03,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:28:03,425 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:28:03,425 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:28:03,425 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err3ASSERT_VIOLATIONERROR_FUNCTION, thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-29 19:28:03,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:28:03,434 INFO L85 PathProgramCache]: Analyzing trace with hash 328212659, now seen corresponding path program 1 times [2023-11-29 19:28:03,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:28:03,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458723454] [2023-11-29 19:28:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:28:03,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:28:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 19:28:03,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 19:28:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 19:28:03,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 19:28:03,564 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-29 19:28:03,564 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2023-11-29 19:28:03,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (21 of 23 remaining) [2023-11-29 19:28:03,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 23 remaining) [2023-11-29 19:28:03,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (19 of 23 remaining) [2023-11-29 19:28:03,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (18 of 23 remaining) [2023-11-29 19:28:03,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (17 of 23 remaining) [2023-11-29 19:28:03,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (16 of 23 remaining) [2023-11-29 19:28:03,567 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (15 of 23 remaining) [2023-11-29 19:28:03,567 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (14 of 23 remaining) [2023-11-29 19:28:03,567 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (13 of 23 remaining) [2023-11-29 19:28:03,567 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (12 of 23 remaining) [2023-11-29 19:28:03,567 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (11 of 23 remaining) [2023-11-29 19:28:03,567 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (10 of 23 remaining) [2023-11-29 19:28:03,567 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 23 remaining) [2023-11-29 19:28:03,568 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (8 of 23 remaining) [2023-11-29 19:28:03,568 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (7 of 23 remaining) [2023-11-29 19:28:03,568 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (6 of 23 remaining) [2023-11-29 19:28:03,568 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (5 of 23 remaining) [2023-11-29 19:28:03,568 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (4 of 23 remaining) [2023-11-29 19:28:03,568 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 23 remaining) [2023-11-29 19:28:03,569 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (2 of 23 remaining) [2023-11-29 19:28:03,569 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 23 remaining) [2023-11-29 19:28:03,569 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (0 of 23 remaining) [2023-11-29 19:28:03,569 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:28:03,570 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 19:28:03,572 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 19:28:03,572 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 19:28:03,630 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:28:03,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 531 places, 611 transitions, 1232 flow [2023-11-29 19:28:03,742 INFO L124 PetriNetUnfolderBase]: 87/635 cut-off events. [2023-11-29 19:28:03,742 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 19:28:03,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 635 events. 87/635 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3355 event pairs, 0 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 579. Up to 10 conditions per place. [2023-11-29 19:28:03,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 531 places, 611 transitions, 1232 flow [2023-11-29 19:28:03,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 531 places, 611 transitions, 1232 flow [2023-11-29 19:28:03,778 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:28:03,782 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66ba275d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:28:03,782 INFO L363 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-29 19:28:03,791 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:28:03,791 INFO L124 PetriNetUnfolderBase]: 5/124 cut-off events. [2023-11-29 19:28:03,792 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 19:28:03,792 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:28:03,792 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:28:03,792 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err3ASSERT_VIOLATIONERROR_FUNCTION, thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2023-11-29 19:28:03,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:28:03,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1587567999, now seen corresponding path program 1 times [2023-11-29 19:28:03,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:28:03,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064985440] [2023-11-29 19:28:03,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:28:03,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:28:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 19:28:03,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 19:28:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 19:28:03,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 19:28:03,862 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-29 19:28:03,863 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2023-11-29 19:28:03,863 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (32 of 34 remaining) [2023-11-29 19:28:03,863 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (31 of 34 remaining) [2023-11-29 19:28:03,863 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (30 of 34 remaining) [2023-11-29 19:28:03,863 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (29 of 34 remaining) [2023-11-29 19:28:03,863 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (28 of 34 remaining) [2023-11-29 19:28:03,863 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (27 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (26 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (25 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (24 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (23 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (22 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (21 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 34 remaining) [2023-11-29 19:28:03,864 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (19 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (18 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (17 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (16 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (15 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (14 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (13 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (12 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (11 of 34 remaining) [2023-11-29 19:28:03,865 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (10 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (8 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (7 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (6 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (5 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (4 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 34 remaining) [2023-11-29 19:28:03,866 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (2 of 34 remaining) [2023-11-29 19:28:03,867 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 34 remaining) [2023-11-29 19:28:03,867 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (0 of 34 remaining) [2023-11-29 19:28:03,867 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:28:03,867 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 19:28:03,867 WARN L227 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 19:28:03,867 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 19:28:03,946 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:28:03,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 775 places, 895 transitions, 1808 flow [2023-11-29 19:28:04,236 INFO L124 PetriNetUnfolderBase]: 130/932 cut-off events. [2023-11-29 19:28:04,237 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-29 19:28:04,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 932 events. 130/932 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5686 event pairs, 0 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 862. Up to 10 conditions per place. [2023-11-29 19:28:04,257 INFO L82 GeneralOperation]: Start removeDead. Operand has 775 places, 895 transitions, 1808 flow [2023-11-29 19:28:04,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 775 places, 895 transitions, 1808 flow [2023-11-29 19:28:04,277 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:28:04,281 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66ba275d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:28:04,281 INFO L363 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-29 19:28:04,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:28:04,293 INFO L124 PetriNetUnfolderBase]: 5/129 cut-off events. [2023-11-29 19:28:04,293 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 19:28:04,293 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:28:04,293 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:28:04,294 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err3ASSERT_VIOLATIONERROR_FUNCTION, thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2023-11-29 19:28:04,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:28:04,294 INFO L85 PathProgramCache]: Analyzing trace with hash -41300124, now seen corresponding path program 1 times [2023-11-29 19:28:04,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:28:04,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544775482] [2023-11-29 19:28:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:28:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:28:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:28:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:28:04,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:28:04,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544775482] [2023-11-29 19:28:04,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544775482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:28:04,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:28:04,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 19:28:04,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158993178] [2023-11-29 19:28:04,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:28:04,422 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 19:28:04,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:28:04,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 19:28:04,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 19:28:04,465 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 695 out of 895 [2023-11-29 19:28:04,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 895 transitions, 1808 flow. Second operand has 2 states, 2 states have (on average 697.0) internal successors, (1394), 2 states have internal predecessors, (1394), 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) [2023-11-29 19:28:04,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:28:04,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 695 of 895 [2023-11-29 19:28:04,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:28:36,500 INFO L124 PetriNetUnfolderBase]: 70782/281339 cut-off events. [2023-11-29 19:28:36,500 INFO L125 PetriNetUnfolderBase]: For 6976/6976 co-relation queries the response was YES. [2023-11-29 19:28:38,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353726 conditions, 281339 events. 70782/281339 cut-off events. For 6976/6976 co-relation queries the response was YES. Maximal size of possible extension queue 10868. Compared 5169075 event pairs, 43092 based on Foata normal form. 63821/314502 useless extension candidates. Maximal degree in co-relation 10260. Up to 69161 conditions per place. [2023-11-29 19:28:40,505 INFO L140 encePairwiseOnDemand]: 842/895 looper letters, 84 selfloop transitions, 0 changer transitions 0/741 dead transitions. [2023-11-29 19:28:40,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 741 transitions, 1668 flow [2023-11-29 19:28:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 19:28:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 19:28:40,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1527 transitions. [2023-11-29 19:28:40,518 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.853072625698324 [2023-11-29 19:28:40,519 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1527 transitions. [2023-11-29 19:28:40,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1527 transitions. [2023-11-29 19:28:40,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:28:40,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1527 transitions. [2023-11-29 19:28:40,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 763.5) internal successors, (1527), 2 states have internal predecessors, (1527), 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) [2023-11-29 19:28:40,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 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) [2023-11-29 19:28:40,535 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 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) [2023-11-29 19:28:40,538 INFO L307 CegarLoopForPetriNet]: 775 programPoint places, -104 predicate places. [2023-11-29 19:28:40,538 INFO L500 AbstractCegarLoop]: Abstraction has has 671 places, 741 transitions, 1668 flow [2023-11-29 19:28:40,539 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 697.0) internal successors, (1394), 2 states have internal predecessors, (1394), 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) [2023-11-29 19:28:40,539 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:28:40,539 INFO L232 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:28:40,539 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:28:40,539 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err3ASSERT_VIOLATIONERROR_FUNCTION, thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2023-11-29 19:28:40,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:28:40,540 INFO L85 PathProgramCache]: Analyzing trace with hash 945236948, now seen corresponding path program 1 times [2023-11-29 19:28:40,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:28:40,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369421148] [2023-11-29 19:28:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:28:40,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:28:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 19:28:40,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 19:28:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 19:28:40,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 19:28:40,575 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-29 19:28:40,575 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2023-11-29 19:28:40,575 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (43 of 45 remaining) [2023-11-29 19:28:40,575 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (42 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (41 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (40 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (39 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (38 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (37 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (36 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (35 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (34 of 45 remaining) [2023-11-29 19:28:40,576 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (33 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (32 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (31 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (30 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (29 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (28 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (27 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (26 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (25 of 45 remaining) [2023-11-29 19:28:40,577 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (24 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (23 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (22 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (21 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (19 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (18 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (17 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (16 of 45 remaining) [2023-11-29 19:28:40,578 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (15 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (14 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (13 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (12 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (11 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (10 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (8 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (7 of 45 remaining) [2023-11-29 19:28:40,579 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (6 of 45 remaining) [2023-11-29 19:28:40,580 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (5 of 45 remaining) [2023-11-29 19:28:40,580 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (4 of 45 remaining) [2023-11-29 19:28:40,580 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 45 remaining) [2023-11-29 19:28:40,580 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (2 of 45 remaining) [2023-11-29 19:28:40,580 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 45 remaining) [2023-11-29 19:28:40,580 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (0 of 45 remaining) [2023-11-29 19:28:40,580 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:28:40,580 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 19:28:40,581 WARN L227 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 19:28:40,581 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-29 19:28:40,674 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:28:40,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1019 places, 1179 transitions, 2386 flow [2023-11-29 19:28:41,012 INFO L124 PetriNetUnfolderBase]: 173/1229 cut-off events. [2023-11-29 19:28:41,012 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 19:28:41,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 1229 events. 173/1229 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8105 event pairs, 0 based on Foata normal form. 0/1007 useless extension candidates. Maximal degree in co-relation 1145. Up to 10 conditions per place. [2023-11-29 19:28:41,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 1019 places, 1179 transitions, 2386 flow [2023-11-29 19:28:41,101 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1019 places, 1179 transitions, 2386 flow [2023-11-29 19:28:41,102 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:28:41,102 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66ba275d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:28:41,102 INFO L363 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-29 19:28:41,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:28:41,108 INFO L124 PetriNetUnfolderBase]: 5/131 cut-off events. [2023-11-29 19:28:41,108 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 19:28:41,108 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:28:41,108 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:28:41,108 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err3ASSERT_VIOLATIONERROR_FUNCTION, thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (and 52 more)] === [2023-11-29 19:28:41,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:28:41,109 INFO L85 PathProgramCache]: Analyzing trace with hash 694713855, now seen corresponding path program 1 times [2023-11-29 19:28:41,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:28:41,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864891108] [2023-11-29 19:28:41,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:28:41,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:28:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:28:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:28:41,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:28:41,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864891108] [2023-11-29 19:28:41,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864891108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:28:41,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:28:41,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 19:28:41,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694582720] [2023-11-29 19:28:41,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:28:41,132 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 19:28:41,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:28:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 19:28:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 19:28:41,135 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 913 out of 1179 [2023-11-29 19:28:41,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1179 transitions, 2386 flow. Second operand has 2 states, 2 states have (on average 915.0) internal successors, (1830), 2 states have internal predecessors, (1830), 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) [2023-11-29 19:28:41,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:28:41,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 913 of 1179 [2023-11-29 19:28:41,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand