/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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-a20a710-m [2023-12-09 14:55:26,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:55:26,494 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 [2023-12-09 14:55:26,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:55:26,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:55:26,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:55:26,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:55:26,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:55:26,522 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:55:26,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:55:26,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:55:26,525 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:55:26,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:55:26,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:55:26,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:55:26,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:55:26,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:55:26,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:55:26,527 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:55:26,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:55:26,527 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:55:26,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:55:26,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:55:26,528 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:55:26,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:55:26,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:55:26,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:55:26,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:55:26,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:55:26,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:55:26,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:55:26,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:55:26,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:55:26,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:55:26,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:55:26,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:55:26,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:55:26,739 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:55:26,739 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:55:26,740 INFO L431 ainManager$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 [2023-12-09 14:55:27,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:55:28,015 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:55:28,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2023-12-09 14:55:28,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303376222/10938a80a9ef477aa0d093309cbc371b/FLAG1630b577b [2023-12-09 14:55:28,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303376222/10938a80a9ef477aa0d093309cbc371b [2023-12-09 14:55:28,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:55:28,041 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:55:28,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:55:28,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:55:28,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:55:28,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10666f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28, skipping insertion in model container [2023-12-09 14:55:28,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:55:28,294 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] [2023-12-09 14:55:28,301 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] [2023-12-09 14:55:28,310 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] [2023-12-09 14:55:28,313 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] [2023-12-09 14:55:28,318 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] [2023-12-09 14:55:28,325 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] [2023-12-09 14:55:28,327 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] [2023-12-09 14:55:28,328 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] [2023-12-09 14:55:28,329 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] [2023-12-09 14:55:28,331 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] [2023-12-09 14:55:28,334 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] [2023-12-09 14:55:28,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:55:28,371 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:55:28,403 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[30535,30548] [2023-12-09 14:55:28,404 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[30687,30700] [2023-12-09 14:55:28,413 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] [2023-12-09 14:55:28,414 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] [2023-12-09 14:55:28,415 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] [2023-12-09 14:55:28,416 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] [2023-12-09 14:55:28,417 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] [2023-12-09 14:55:28,417 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] [2023-12-09 14:55:28,418 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] [2023-12-09 14:55:28,418 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] [2023-12-09 14:55:28,419 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] [2023-12-09 14:55:28,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:55:28,446 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:55:28,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28 WrapperNode [2023-12-09 14:55:28,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:55:28,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:55:28,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:55:28,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:55:28,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,493 INFO L138 Inliner]: procedures = 174, calls = 65, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 330 [2023-12-09 14:55:28,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:55:28,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:55:28,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:55:28,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:55:28,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:55:28,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:55:28,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:55:28,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:55:28,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (1/1) ... [2023-12-09 14:55:28,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:55:28,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:55:28,551 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) [2023-12-09 14:55:28,561 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 [2023-12-09 14:55:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-12-09 14:55:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-12-09 14:55:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 14:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 14:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:55:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:55:28,596 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 14:55:28,740 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:55:28,742 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:55:29,038 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:55:29,095 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:55:29,095 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-09 14:55:29,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:55:29 BoogieIcfgContainer [2023-12-09 14:55:29,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:55:29,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:55:29,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:55:29,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:55:29,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:55:28" (1/3) ... [2023-12-09 14:55:29,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644e296c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:55:29, skipping insertion in model container [2023-12-09 14:55:29,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:55:28" (2/3) ... [2023-12-09 14:55:29,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644e296c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:55:29, skipping insertion in model container [2023-12-09 14:55:29,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:55:29" (3/3) ... [2023-12-09 14:55:29,102 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2023-12-09 14:55:29,114 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:55:29,114 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-09 14:55:29,114 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:55:29,176 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:55:29,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 327 transitions, 658 flow [2023-12-09 14:55:29,318 INFO L124 PetriNetUnfolderBase]: 44/338 cut-off events. [2023-12-09 14:55:29,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:55:29,327 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. [2023-12-09 14:55:29,327 INFO L82 GeneralOperation]: Start removeDead. Operand has 287 places, 327 transitions, 658 flow [2023-12-09 14:55:29,336 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 327 transitions, 658 flow [2023-12-09 14:55:29,349 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:55:29,356 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;@30e102a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:55:29,356 INFO L363 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-12-09 14:55:29,371 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:55:29,371 INFO L124 PetriNetUnfolderBase]: 3/64 cut-off events. [2023-12-09 14:55:29,371 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:55:29,371 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:29,372 INFO L233 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] [2023-12-09 14:55:29,372 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)] === [2023-12-09 14:55:29,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:29,376 INFO L85 PathProgramCache]: Analyzing trace with hash 328212659, now seen corresponding path program 1 times [2023-12-09 14:55:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:29,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609521223] [2023-12-09 14:55:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:29,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:55:29,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 14:55:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:55:29,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 14:55:29,559 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 14:55:29,560 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2023-12-09 14:55:29,561 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (21 of 23 remaining) [2023-12-09 14:55:29,561 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 23 remaining) [2023-12-09 14:55:29,562 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (19 of 23 remaining) [2023-12-09 14:55:29,562 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (18 of 23 remaining) [2023-12-09 14:55:29,562 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (17 of 23 remaining) [2023-12-09 14:55:29,563 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (16 of 23 remaining) [2023-12-09 14:55:29,563 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (15 of 23 remaining) [2023-12-09 14:55:29,563 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (14 of 23 remaining) [2023-12-09 14:55:29,563 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (13 of 23 remaining) [2023-12-09 14:55:29,563 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (12 of 23 remaining) [2023-12-09 14:55:29,563 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (11 of 23 remaining) [2023-12-09 14:55:29,564 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (10 of 23 remaining) [2023-12-09 14:55:29,564 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 23 remaining) [2023-12-09 14:55:29,564 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (8 of 23 remaining) [2023-12-09 14:55:29,564 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (7 of 23 remaining) [2023-12-09 14:55:29,565 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (6 of 23 remaining) [2023-12-09 14:55:29,565 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (5 of 23 remaining) [2023-12-09 14:55:29,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (4 of 23 remaining) [2023-12-09 14:55:29,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 23 remaining) [2023-12-09 14:55:29,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (2 of 23 remaining) [2023-12-09 14:55:29,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 23 remaining) [2023-12-09 14:55:29,566 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (0 of 23 remaining) [2023-12-09 14:55:29,567 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:55:29,568 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 14:55:29,570 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 14:55:29,571 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-09 14:55:29,682 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:55:29,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 531 places, 611 transitions, 1232 flow [2023-12-09 14:55:29,807 INFO L124 PetriNetUnfolderBase]: 87/635 cut-off events. [2023-12-09 14:55:29,807 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 14:55:29,832 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. [2023-12-09 14:55:29,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 531 places, 611 transitions, 1232 flow [2023-12-09 14:55:29,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 531 places, 611 transitions, 1232 flow [2023-12-09 14:55:29,844 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:55:29,848 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;@30e102a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:55:29,848 INFO L363 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-12-09 14:55:29,858 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:55:29,858 INFO L124 PetriNetUnfolderBase]: 5/124 cut-off events. [2023-12-09 14:55:29,859 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 14:55:29,859 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:29,859 INFO L233 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] [2023-12-09 14:55:29,859 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)] === [2023-12-09 14:55:29,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:29,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1587567999, now seen corresponding path program 1 times [2023-12-09 14:55:29,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:29,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000304972] [2023-12-09 14:55:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:29,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:55:29,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 14:55:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:55:29,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 14:55:29,927 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 14:55:29,927 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2023-12-09 14:55:29,927 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (32 of 34 remaining) [2023-12-09 14:55:29,927 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (31 of 34 remaining) [2023-12-09 14:55:29,927 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (30 of 34 remaining) [2023-12-09 14:55:29,927 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (29 of 34 remaining) [2023-12-09 14:55:29,928 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (28 of 34 remaining) [2023-12-09 14:55:29,928 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (27 of 34 remaining) [2023-12-09 14:55:29,928 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (26 of 34 remaining) [2023-12-09 14:55:29,929 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (25 of 34 remaining) [2023-12-09 14:55:29,929 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (24 of 34 remaining) [2023-12-09 14:55:29,930 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (23 of 34 remaining) [2023-12-09 14:55:29,930 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (22 of 34 remaining) [2023-12-09 14:55:29,931 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (21 of 34 remaining) [2023-12-09 14:55:29,931 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 34 remaining) [2023-12-09 14:55:29,933 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (19 of 34 remaining) [2023-12-09 14:55:29,933 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (18 of 34 remaining) [2023-12-09 14:55:29,933 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (17 of 34 remaining) [2023-12-09 14:55:29,933 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (16 of 34 remaining) [2023-12-09 14:55:29,933 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (15 of 34 remaining) [2023-12-09 14:55:29,933 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (14 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (13 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (12 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (11 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (10 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (8 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (7 of 34 remaining) [2023-12-09 14:55:29,934 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (6 of 34 remaining) [2023-12-09 14:55:29,935 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (5 of 34 remaining) [2023-12-09 14:55:29,935 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (4 of 34 remaining) [2023-12-09 14:55:29,935 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 34 remaining) [2023-12-09 14:55:29,935 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (2 of 34 remaining) [2023-12-09 14:55:29,935 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 34 remaining) [2023-12-09 14:55:29,935 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (0 of 34 remaining) [2023-12-09 14:55:29,935 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:55:29,935 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 14:55:29,936 WARN L227 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 14:55:29,936 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-12-09 14:55:30,029 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:55:30,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 775 places, 895 transitions, 1808 flow [2023-12-09 14:55:30,330 INFO L124 PetriNetUnfolderBase]: 130/932 cut-off events. [2023-12-09 14:55:30,330 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-12-09 14:55:30,349 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. [2023-12-09 14:55:30,349 INFO L82 GeneralOperation]: Start removeDead. Operand has 775 places, 895 transitions, 1808 flow [2023-12-09 14:55:30,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 775 places, 895 transitions, 1808 flow [2023-12-09 14:55:30,368 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:55:30,369 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;@30e102a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:55:30,369 INFO L363 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-12-09 14:55:30,379 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:55:30,379 INFO L124 PetriNetUnfolderBase]: 5/129 cut-off events. [2023-12-09 14:55:30,379 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 14:55:30,379 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:55:30,380 INFO L233 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] [2023-12-09 14:55:30,380 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err3ASSERT_VIOLATIONERROR_FUNCTION, thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2023-12-09 14:55:30,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:55:30,380 INFO L85 PathProgramCache]: Analyzing trace with hash -41300124, now seen corresponding path program 1 times [2023-12-09 14:55:30,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:55:30,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816061868] [2023-12-09 14:55:30,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:55:30,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:55:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:55:30,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:55:30,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:55:30,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816061868] [2023-12-09 14:55:30,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816061868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:55:30,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:55:30,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-09 14:55:30,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251349367] [2023-12-09 14:55:30,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:55:30,464 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-09 14:55:30,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:55:30,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-09 14:55:30,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-09 14:55:30,527 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 695 out of 895 [2023-12-09 14:55:30,533 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) [2023-12-09 14:55:30,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:55:30,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 695 of 895 [2023-12-09 14:55:30,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:07,286 INFO L124 PetriNetUnfolderBase]: 70782/281339 cut-off events. [2023-12-09 14:56:07,286 INFO L125 PetriNetUnfolderBase]: For 6976/6976 co-relation queries the response was YES. [2023-12-09 14:56:09,979 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. [2023-12-09 14:56:11,508 INFO L140 encePairwiseOnDemand]: 842/895 looper letters, 84 selfloop transitions, 0 changer transitions 0/741 dead transitions. [2023-12-09 14:56:11,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 741 transitions, 1668 flow [2023-12-09 14:56:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-09 14:56:11,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-12-09 14:56:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1527 transitions. [2023-12-09 14:56:11,521 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.853072625698324 [2023-12-09 14:56:11,522 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1527 transitions. [2023-12-09 14:56:11,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1527 transitions. [2023-12-09 14:56:11,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:11,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1527 transitions. [2023-12-09 14:56:11,532 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) [2023-12-09 14:56:11,540 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) [2023-12-09 14:56:11,541 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) [2023-12-09 14:56:11,546 INFO L308 CegarLoopForPetriNet]: 775 programPoint places, -104 predicate places. [2023-12-09 14:56:11,546 INFO L500 AbstractCegarLoop]: Abstraction has has 671 places, 741 transitions, 1668 flow [2023-12-09 14:56:11,547 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) [2023-12-09 14:56:11,547 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:11,548 INFO L233 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] [2023-12-09 14:56:11,548 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:56:11,549 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)] === [2023-12-09 14:56:11,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:11,550 INFO L85 PathProgramCache]: Analyzing trace with hash 945236948, now seen corresponding path program 1 times [2023-12-09 14:56:11,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:11,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366002862] [2023-12-09 14:56:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:11,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:56:11,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 14:56:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:56:11,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 14:56:11,634 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 14:56:11,634 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2023-12-09 14:56:11,637 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (43 of 45 remaining) [2023-12-09 14:56:11,637 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (42 of 45 remaining) [2023-12-09 14:56:11,637 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (41 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (40 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (39 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (38 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (37 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (36 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (35 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (34 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (33 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (32 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (31 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (30 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (29 of 45 remaining) [2023-12-09 14:56:11,638 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (28 of 45 remaining) [2023-12-09 14:56:11,639 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (27 of 45 remaining) [2023-12-09 14:56:11,640 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (26 of 45 remaining) [2023-12-09 14:56:11,640 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (25 of 45 remaining) [2023-12-09 14:56:11,640 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (24 of 45 remaining) [2023-12-09 14:56:11,640 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (23 of 45 remaining) [2023-12-09 14:56:11,640 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (22 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (21 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (19 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (18 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (17 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (16 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (15 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (14 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (13 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (12 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (11 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (10 of 45 remaining) [2023-12-09 14:56:11,641 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (8 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (7 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (6 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (5 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (4 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (2 of 45 remaining) [2023-12-09 14:56:11,642 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 45 remaining) [2023-12-09 14:56:11,643 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (0 of 45 remaining) [2023-12-09 14:56:11,643 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:56:11,643 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-09 14:56:11,644 WARN L227 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 14:56:11,644 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-12-09 14:56:11,737 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:56:11,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1019 places, 1179 transitions, 2386 flow [2023-12-09 14:56:12,184 INFO L124 PetriNetUnfolderBase]: 173/1229 cut-off events. [2023-12-09 14:56:12,184 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-12-09 14:56:12,246 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. [2023-12-09 14:56:12,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 1019 places, 1179 transitions, 2386 flow [2023-12-09 14:56:12,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1019 places, 1179 transitions, 2386 flow [2023-12-09 14:56:12,275 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:56:12,275 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;@30e102a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:56:12,275 INFO L363 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-12-09 14:56:12,281 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:56:12,281 INFO L124 PetriNetUnfolderBase]: 5/131 cut-off events. [2023-12-09 14:56:12,281 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 14:56:12,281 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:12,281 INFO L233 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] [2023-12-09 14:56:12,282 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err3ASSERT_VIOLATIONERROR_FUNCTION, thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (and 52 more)] === [2023-12-09 14:56:12,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:12,282 INFO L85 PathProgramCache]: Analyzing trace with hash 694713855, now seen corresponding path program 1 times [2023-12-09 14:56:12,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:12,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110073901] [2023-12-09 14:56:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:56:12,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110073901] [2023-12-09 14:56:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110073901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:12,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:12,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-09 14:56:12,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433779426] [2023-12-09 14:56:12,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:12,310 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-09 14:56:12,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:12,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-09 14:56:12,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-09 14:56:12,312 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 913 out of 1179 [2023-12-09 14:56:12,313 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) [2023-12-09 14:56:12,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:12,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 913 of 1179 [2023-12-09 14:56:12,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand