/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:36:39,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:36:39,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:36:39,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 01:36:39,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 01:36:39,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 01:36:39,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 01:36:39,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 01:36:39,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 01:36:39,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 01:36:39,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 01:36:39,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 01:36:39,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:36:39,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:36:39,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:36:39,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:36:39,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:36:39,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:36:39,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:36:39,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:36:39,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:36:39,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:36:39,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:36:39,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:36:39,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 01:36:39,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 01:36:39,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 01:36:39,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 01:36:39,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 01:36:39,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 01:36:39,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 01:36:39,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 01:36:39,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 01:36:39,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 01:36:39,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 01:36:39,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 01:36:39,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 01:36:39,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 01:36:39,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:36:39,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:36:39,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:36:39,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 01:36:39,883 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:36:39,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:36:39,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:36:39,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:36:39,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:36:39,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:36:39,885 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:36:39,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:36:39,886 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:36:39,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:36:39,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:36:39,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:36:39,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:36:39,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:36:39,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:36:39,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:36:39,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:36:39,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:36:39,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:36:39,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:36:39,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:36:39,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:36:39,888 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:36:40,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:36:40,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:36:40,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:36:40,102 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:36:40,103 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:36:40,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-01-28 01:36:41,073 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:36:41,315 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:36:41,316 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-01-28 01:36:41,323 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86ab5a94d/cde11d665c10492e97b5a83b4a711d91/FLAG66295bc0d [2023-01-28 01:36:41,333 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86ab5a94d/cde11d665c10492e97b5a83b4a711d91 [2023-01-28 01:36:41,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:36:41,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:36:41,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:36:41,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:36:41,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:36:41,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa19aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41, skipping insertion in model container [2023-01-28 01:36:41,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:36:41,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:36:41,626 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2023-01-28 01:36:41,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:36:41,663 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:36:41,691 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2023-01-28 01:36:41,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:36:41,735 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:36:41,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41 WrapperNode [2023-01-28 01:36:41,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:36:41,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:36:41,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:36:41,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:36:41,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,788 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2023-01-28 01:36:41,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:36:41,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:36:41,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:36:41,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:36:41,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:36:41,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:36:41,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:36:41,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:36:41,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (1/1) ... [2023-01-28 01:36:41,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:36:41,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:36:41,833 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) [2023-01-28 01:36:41,849 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 [2023-01-28 01:36:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:36:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-28 01:36:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-28 01:36:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:36:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:36:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:36:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:36:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-28 01:36:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-28 01:36:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:36:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:36:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:36:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:36:41,868 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:36:42,007 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:36:42,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:36:42,199 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:36:42,205 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:36:42,205 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-01-28 01:36:42,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:36:42 BoogieIcfgContainer [2023-01-28 01:36:42,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:36:42,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:36:42,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:36:42,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:36:42,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:36:41" (1/3) ... [2023-01-28 01:36:42,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9e3653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:36:42, skipping insertion in model container [2023-01-28 01:36:42,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:36:41" (2/3) ... [2023-01-28 01:36:42,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9e3653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:36:42, skipping insertion in model container [2023-01-28 01:36:42,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:36:42" (3/3) ... [2023-01-28 01:36:42,212 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-01-28 01:36:42,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:36:42,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 01:36:42,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:36:42,288 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-28 01:36:42,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 215 transitions, 452 flow [2023-01-28 01:36:42,415 INFO L130 PetriNetUnfolder]: 58/380 cut-off events. [2023-01-28 01:36:42,415 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2023-01-28 01:36:42,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 380 events. 58/380 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1612 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-01-28 01:36:42,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 215 transitions, 452 flow [2023-01-28 01:36:42,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 215 transitions, 452 flow [2023-01-28 01:36:42,428 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:36:42,439 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 215 transitions, 452 flow [2023-01-28 01:36:42,442 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 215 transitions, 452 flow [2023-01-28 01:36:42,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 215 transitions, 452 flow [2023-01-28 01:36:42,511 INFO L130 PetriNetUnfolder]: 58/380 cut-off events. [2023-01-28 01:36:42,511 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2023-01-28 01:36:42,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 380 events. 58/380 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1612 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-01-28 01:36:42,523 INFO L119 LiptonReduction]: Number of co-enabled transitions 18788 [2023-01-28 01:36:45,840 INFO L134 LiptonReduction]: Checked pairs total: 31275 [2023-01-28 01:36:45,840 INFO L136 LiptonReduction]: Total number of compositions: 160 [2023-01-28 01:36:45,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:36:45,854 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@69ecba18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:36:45,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:36:45,857 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2023-01-28 01:36:45,857 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:36:45,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:36:45,858 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 01:36:45,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:36:45,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:36:45,862 INFO L85 PathProgramCache]: Analyzing trace with hash -103624817, now seen corresponding path program 1 times [2023-01-28 01:36:45,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:36:45,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133149447] [2023-01-28 01:36:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:36:45,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:36:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:36:45,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:36:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:36:45,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:36:45,981 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:36:45,982 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:36:45,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:36:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:36:45,983 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:36:45,985 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:36:45,986 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:36:45,986 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 01:36:46,020 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-01-28 01:36:46,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 343 transitions, 734 flow [2023-01-28 01:36:46,180 INFO L130 PetriNetUnfolder]: 197/1103 cut-off events. [2023-01-28 01:36:46,180 INFO L131 PetriNetUnfolder]: For 72/81 co-relation queries the response was YES. [2023-01-28 01:36:46,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1103 events. 197/1103 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6638 event pairs, 1 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 671. Up to 32 conditions per place. [2023-01-28 01:36:46,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 343 transitions, 734 flow [2023-01-28 01:36:46,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 343 transitions, 734 flow [2023-01-28 01:36:46,206 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:36:46,206 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 343 transitions, 734 flow [2023-01-28 01:36:46,206 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 343 transitions, 734 flow [2023-01-28 01:36:46,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 343 transitions, 734 flow [2023-01-28 01:36:46,350 INFO L130 PetriNetUnfolder]: 197/1103 cut-off events. [2023-01-28 01:36:46,350 INFO L131 PetriNetUnfolder]: For 72/81 co-relation queries the response was YES. [2023-01-28 01:36:46,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1103 events. 197/1103 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6638 event pairs, 1 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 671. Up to 32 conditions per place. [2023-01-28 01:36:46,398 INFO L119 LiptonReduction]: Number of co-enabled transitions 69784 [2023-01-28 01:36:50,290 INFO L134 LiptonReduction]: Checked pairs total: 133189 [2023-01-28 01:36:50,291 INFO L136 LiptonReduction]: Total number of compositions: 247 [2023-01-28 01:36:50,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:36:50,293 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@69ecba18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:36:50,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:36:50,301 INFO L130 PetriNetUnfolder]: 33/124 cut-off events. [2023-01-28 01:36:50,301 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 01:36:50,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:36:50,302 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 01:36:50,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:36:50,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:36:50,303 INFO L85 PathProgramCache]: Analyzing trace with hash 253020290, now seen corresponding path program 1 times [2023-01-28 01:36:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:36:50,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375998727] [2023-01-28 01:36:50,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:36:50,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:36:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:36:50,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:36:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:36:50,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:36:50,356 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:36:50,356 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:36:50,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:36:50,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 01:36:50,356 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:36:50,357 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:36:50,357 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:36:50,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 01:36:50,389 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2023-01-28 01:36:50,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 396 places, 471 transitions, 1020 flow [2023-01-28 01:36:50,929 INFO L130 PetriNetUnfolder]: 664/3102 cut-off events. [2023-01-28 01:36:50,930 INFO L131 PetriNetUnfolder]: For 419/435 co-relation queries the response was YES. [2023-01-28 01:36:50,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 3102 events. 664/3102 cut-off events. For 419/435 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 22765 event pairs, 32 based on Foata normal form. 0/2611 useless extension candidates. Maximal degree in co-relation 1997. Up to 192 conditions per place. [2023-01-28 01:36:50,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 396 places, 471 transitions, 1020 flow [2023-01-28 01:36:51,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 396 places, 471 transitions, 1020 flow [2023-01-28 01:36:51,020 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:36:51,024 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 471 transitions, 1020 flow [2023-01-28 01:36:51,024 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 471 transitions, 1020 flow [2023-01-28 01:36:51,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 396 places, 471 transitions, 1020 flow [2023-01-28 01:36:51,570 INFO L130 PetriNetUnfolder]: 664/3102 cut-off events. [2023-01-28 01:36:51,570 INFO L131 PetriNetUnfolder]: For 419/435 co-relation queries the response was YES. [2023-01-28 01:36:51,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 3102 events. 664/3102 cut-off events. For 419/435 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 22765 event pairs, 32 based on Foata normal form. 0/2611 useless extension candidates. Maximal degree in co-relation 1997. Up to 192 conditions per place. [2023-01-28 01:36:51,732 INFO L119 LiptonReduction]: Number of co-enabled transitions 152988 [2023-01-28 01:36:56,500 INFO L134 LiptonReduction]: Checked pairs total: 310415 [2023-01-28 01:36:56,500 INFO L136 LiptonReduction]: Total number of compositions: 349 [2023-01-28 01:36:56,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:36:56,502 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@69ecba18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:36:56,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:36:56,513 INFO L130 PetriNetUnfolder]: 69/249 cut-off events. [2023-01-28 01:36:56,514 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-28 01:36:56,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:36:56,514 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 01:36:56,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:36:56,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:36:56,514 INFO L85 PathProgramCache]: Analyzing trace with hash -584935280, now seen corresponding path program 1 times [2023-01-28 01:36:56,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:36:56,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796340850] [2023-01-28 01:36:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:36:56,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:36:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:36:56,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:36:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:36:56,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:36:56,564 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:36:56,564 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:36:56,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:36:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 01:36:56,564 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:36:56,565 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:36:56,565 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:36:56,565 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 01:36:56,599 INFO L144 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2023-01-28 01:36:56,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 599 transitions, 1310 flow [2023-01-28 01:36:59,162 INFO L130 PetriNetUnfolder]: 2647/10049 cut-off events. [2023-01-28 01:36:59,162 INFO L131 PetriNetUnfolder]: For 2144/2174 co-relation queries the response was YES. [2023-01-28 01:36:59,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12214 conditions, 10049 events. 2647/10049 cut-off events. For 2144/2174 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 89330 event pairs, 626 based on Foata normal form. 0/8653 useless extension candidates. Maximal degree in co-relation 6422. Up to 1024 conditions per place. [2023-01-28 01:36:59,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 500 places, 599 transitions, 1310 flow [2023-01-28 01:36:59,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 500 places, 599 transitions, 1310 flow [2023-01-28 01:36:59,536 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:36:59,536 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 599 transitions, 1310 flow [2023-01-28 01:36:59,536 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 599 transitions, 1310 flow [2023-01-28 01:36:59,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 599 transitions, 1310 flow [2023-01-28 01:37:02,110 INFO L130 PetriNetUnfolder]: 2647/10049 cut-off events. [2023-01-28 01:37:02,110 INFO L131 PetriNetUnfolder]: For 2144/2174 co-relation queries the response was YES. [2023-01-28 01:37:02,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12214 conditions, 10049 events. 2647/10049 cut-off events. For 2144/2174 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 89330 event pairs, 626 based on Foata normal form. 0/8653 useless extension candidates. Maximal degree in co-relation 6422. Up to 1024 conditions per place. [2023-01-28 01:37:02,987 INFO L119 LiptonReduction]: Number of co-enabled transitions 268400 [2023-01-28 01:37:08,856 INFO L134 LiptonReduction]: Checked pairs total: 548312 [2023-01-28 01:37:08,856 INFO L136 LiptonReduction]: Total number of compositions: 435 [2023-01-28 01:37:08,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:37:08,859 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@69ecba18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:37:08,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:37:08,884 INFO L130 PetriNetUnfolder]: 145/493 cut-off events. [2023-01-28 01:37:08,884 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2023-01-28 01:37:08,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:37:08,884 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 01:37:08,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:37:08,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:37:08,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1387299188, now seen corresponding path program 1 times [2023-01-28 01:37:08,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:37:08,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246489674] [2023-01-28 01:37:08,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:37:08,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:37:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:08,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:37:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:08,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:37:08,935 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:37:08,935 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:37:08,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:37:08,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 01:37:08,935 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:37:08,936 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:37:08,936 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:37:08,936 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 01:37:08,982 INFO L144 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2023-01-28 01:37:08,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 604 places, 727 transitions, 1604 flow [2023-01-28 01:37:21,652 INFO L130 PetriNetUnfolder]: 11762/37496 cut-off events. [2023-01-28 01:37:21,652 INFO L131 PetriNetUnfolder]: For 10450/10486 co-relation queries the response was YES. [2023-01-28 01:37:23,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47922 conditions, 37496 events. 11762/37496 cut-off events. For 10450/10486 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 404408 event pairs, 4296 based on Foata normal form. 0/32861 useless extension candidates. Maximal degree in co-relation 23869. Up to 5120 conditions per place. [2023-01-28 01:37:23,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 604 places, 727 transitions, 1604 flow [2023-01-28 01:37:23,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 604 places, 727 transitions, 1604 flow [2023-01-28 01:37:23,995 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:37:23,995 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 604 places, 727 transitions, 1604 flow [2023-01-28 01:37:23,995 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 604 places, 727 transitions, 1604 flow [2023-01-28 01:37:23,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 604 places, 727 transitions, 1604 flow [2023-01-28 01:37:36,046 INFO L130 PetriNetUnfolder]: 11762/37496 cut-off events. [2023-01-28 01:37:36,047 INFO L131 PetriNetUnfolder]: For 10450/10486 co-relation queries the response was YES. [2023-01-28 01:37:37,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47922 conditions, 37496 events. 11762/37496 cut-off events. For 10450/10486 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 404408 event pairs, 4296 based on Foata normal form. 0/32861 useless extension candidates. Maximal degree in co-relation 23869. Up to 5120 conditions per place. [2023-01-28 01:37:40,576 INFO L119 LiptonReduction]: Number of co-enabled transitions 416020 [2023-01-28 01:37:46,997 INFO L134 LiptonReduction]: Checked pairs total: 953614 [2023-01-28 01:37:46,998 INFO L136 LiptonReduction]: Total number of compositions: 526 [2023-01-28 01:37:46,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:37:47,000 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@69ecba18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:37:47,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:37:47,048 INFO L130 PetriNetUnfolder]: 251/817 cut-off events. [2023-01-28 01:37:47,048 INFO L131 PetriNetUnfolder]: For 203/203 co-relation queries the response was YES. [2023-01-28 01:37:47,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:37:47,048 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:37:47,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:37:47,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:37:47,048 INFO L85 PathProgramCache]: Analyzing trace with hash -129010948, now seen corresponding path program 1 times [2023-01-28 01:37:47,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:37:47,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176619593] [2023-01-28 01:37:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:37:47,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:37:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:47,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:37:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:47,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:37:47,079 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:37:47,079 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:37:47,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:37:47,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 01:37:47,080 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:37:47,080 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:37:47,080 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:37:47,080 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 01:37:47,126 INFO L144 ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions. [2023-01-28 01:37:47,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 708 places, 855 transitions, 1902 flow [2023-01-28 01:38:49,297 INFO L130 PetriNetUnfolder]: 53929/151107 cut-off events. [2023-01-28 01:38:49,298 INFO L131 PetriNetUnfolder]: For 49552/49615 co-relation queries the response was YES. [2023-01-28 01:39:03,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200536 conditions, 151107 events. 53929/151107 cut-off events. For 49552/49615 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 1911633 event pairs, 24930 based on Foata normal form. 0/133987 useless extension candidates. Maximal degree in co-relation 97530. Up to 24576 conditions per place. [2023-01-28 01:39:03,551 INFO L82 GeneralOperation]: Start removeDead. Operand has 708 places, 855 transitions, 1902 flow [2023-01-28 01:39:08,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 708 places, 855 transitions, 1902 flow [2023-01-28 01:39:08,615 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:39:08,615 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 708 places, 855 transitions, 1902 flow [2023-01-28 01:39:08,616 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 708 places, 855 transitions, 1902 flow [2023-01-28 01:39:08,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 708 places, 855 transitions, 1902 flow [2023-01-28 01:40:06,554 INFO L130 PetriNetUnfolder]: 53929/151107 cut-off events. [2023-01-28 01:40:06,554 INFO L131 PetriNetUnfolder]: For 49552/49615 co-relation queries the response was YES. [2023-01-28 01:40:21,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200536 conditions, 151107 events. 53929/151107 cut-off events. For 49552/49615 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 1911633 event pairs, 24930 based on Foata normal form. 0/133987 useless extension candidates. Maximal degree in co-relation 97530. Up to 24576 conditions per place. [2023-01-28 01:40:44,317 INFO L119 LiptonReduction]: Number of co-enabled transitions 595848 [2023-01-28 01:40:51,439 INFO L134 LiptonReduction]: Checked pairs total: 1377275 [2023-01-28 01:40:51,439 INFO L136 LiptonReduction]: Total number of compositions: 611 [2023-01-28 01:40:51,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:40:51,441 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@69ecba18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:40:51,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:40:51,535 INFO L130 PetriNetUnfolder]: 400/1274 cut-off events. [2023-01-28 01:40:51,536 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2023-01-28 01:40:51,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:40:51,536 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:40:51,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:40:51,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:40:51,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1605773083, now seen corresponding path program 1 times [2023-01-28 01:40:51,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:40:51,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160607530] [2023-01-28 01:40:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:40:51,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:40:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:40:51,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:40:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:40:51,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:40:51,586 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:40:51,586 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:40:51,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:40:51,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 01:40:51,587 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:40:51,587 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:40:51,587 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:40:51,587 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 01:40:51,634 INFO L144 ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions. [2023-01-28 01:40:51,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 812 places, 983 transitions, 2204 flow