/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:10:17,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:10:17,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:10:18,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:10:18,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:10:18,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:10:18,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:10:18,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:10:18,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:10:18,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:10:18,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:10:18,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:10:18,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:10:18,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:10:18,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:10:18,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:10:18,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:10:18,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:10:18,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:10:18,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:10:18,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:10:18,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:10:18,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:10:18,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:10:18,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 19:10:18,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 19:10:18,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 19:10:18,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 19:10:18,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 19:10:18,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-01-27 19:10:18,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:10:18,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:10:18,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:10:18,040 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 [2023-01-27 19:10:18,054 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:10:18,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:10:18,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:10:18,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:10:18,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:10:18,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:10:18,055 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:10:18,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:10:18,055 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:10:18,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:10:18,056 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:10:18,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:10:18,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:10:18,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:10:18,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:10:18,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:10:18,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:10:18,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:10:18,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:10:18,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:10:18,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:10:18,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:10:18,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:10:18,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:10:18,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:10:18,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:10:18,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:10:18,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:10:18,266 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:10:18,267 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:10:18,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-01-27 19:10:19,484 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:10:19,684 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:10:19,685 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-01-27 19:10:19,698 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7592b8554/ed2824279b4446ccaceafab6d719e70a/FLAGf018041db [2023-01-27 19:10:19,710 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7592b8554/ed2824279b4446ccaceafab6d719e70a [2023-01-27 19:10:19,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:10:19,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:10:19,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:10:19,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:10:19,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:10:19,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:10:19" (1/1) ... [2023-01-27 19:10:19,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6849c9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:19, skipping insertion in model container [2023-01-27 19:10:19,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:10:19" (1/1) ... [2023-01-27 19:10:19,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:10:19,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:10:19,968 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_10-ptrmunge_racefree.i[30176,30189] [2023-01-27 19:10:19,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:10:20,009 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:10:20,035 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_10-ptrmunge_racefree.i[30176,30189] [2023-01-27 19:10:20,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:10:20,063 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:10:20,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20 WrapperNode [2023-01-27 19:10:20,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:10:20,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:10:20,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:10:20,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:10:20,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,095 INFO L138 Inliner]: procedures = 172, calls = 52, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 220 [2023-01-27 19:10:20,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:10:20,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:10:20,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:10:20,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:10:20,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,114 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:10:20,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:10:20,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:10:20,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:10:20,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (1/1) ... [2023-01-27 19:10:20,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:10:20,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:10:20,143 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) [2023-01-27 19:10:20,155 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 [2023-01-27 19:10:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:10:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-27 19:10:20,182 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-27 19:10:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:10:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:10:20,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:10:20,184 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:10:20,273 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:10:20,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:10:20,538 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:10:20,544 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:10:20,544 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-01-27 19:10:20,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:10:20 BoogieIcfgContainer [2023-01-27 19:10:20,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:10:20,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:10:20,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:10:20,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:10:20,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:10:19" (1/3) ... [2023-01-27 19:10:20,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f869c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:10:20, skipping insertion in model container [2023-01-27 19:10:20,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:10:20" (2/3) ... [2023-01-27 19:10:20,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f869c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:10:20, skipping insertion in model container [2023-01-27 19:10:20,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:10:20" (3/3) ... [2023-01-27 19:10:20,551 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2023-01-27 19:10:20,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:10:20,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 19:10:20,563 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:10:20,620 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-27 19:10:20,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 217 transitions, 456 flow [2023-01-27 19:10:20,732 INFO L130 PetriNetUnfolder]: 58/382 cut-off events. [2023-01-27 19:10:20,732 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2023-01-27 19:10:20,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 382 events. 58/382 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1620 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-01-27 19:10:20,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 217 transitions, 456 flow [2023-01-27 19:10:20,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 217 transitions, 456 flow [2023-01-27 19:10:20,748 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:10:20,754 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 217 transitions, 456 flow [2023-01-27 19:10:20,756 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 217 transitions, 456 flow [2023-01-27 19:10:20,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 217 transitions, 456 flow [2023-01-27 19:10:20,822 INFO L130 PetriNetUnfolder]: 58/382 cut-off events. [2023-01-27 19:10:20,822 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2023-01-27 19:10:20,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 382 events. 58/382 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1620 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-01-27 19:10:20,837 INFO L119 LiptonReduction]: Number of co-enabled transitions 18788 [2023-01-27 19:10:24,183 INFO L134 LiptonReduction]: Checked pairs total: 33979 [2023-01-27 19:10:24,183 INFO L136 LiptonReduction]: Total number of compositions: 164 [2023-01-27 19:10:24,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:10:24,215 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;@716ff148, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:10:24,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-27 19:10:24,231 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2023-01-27 19:10:24,231 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:10:24,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:10:24,245 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-27 19:10:24,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-27 19:10:24,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:10:24,251 INFO L85 PathProgramCache]: Analyzing trace with hash 132924624, now seen corresponding path program 1 times [2023-01-27 19:10:24,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:10:24,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940049242] [2023-01-27 19:10:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:10:24,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:10:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:10:24,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:10:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:10:24,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:10:24,368 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:10:24,369 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-01-27 19:10:24,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-01-27 19:10:24,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-01-27 19:10:24,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-01-27 19:10:24,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-01-27 19:10:24,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-01-27 19:10:24,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:10:24,371 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:10:24,373 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 19:10:24,373 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-27 19:10:24,405 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-01-27 19:10:24,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 345 transitions, 738 flow [2023-01-27 19:10:24,540 INFO L130 PetriNetUnfolder]: 197/1105 cut-off events. [2023-01-27 19:10:24,540 INFO L131 PetriNetUnfolder]: For 72/81 co-relation queries the response was YES. [2023-01-27 19:10:24,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1105 events. 197/1105 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6613 event pairs, 1 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 673. Up to 32 conditions per place. [2023-01-27 19:10:24,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 345 transitions, 738 flow [2023-01-27 19:10:24,567 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 345 transitions, 738 flow [2023-01-27 19:10:24,568 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:10:24,568 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 294 places, 345 transitions, 738 flow [2023-01-27 19:10:24,568 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 294 places, 345 transitions, 738 flow [2023-01-27 19:10:24,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 345 transitions, 738 flow [2023-01-27 19:10:24,722 INFO L130 PetriNetUnfolder]: 197/1105 cut-off events. [2023-01-27 19:10:24,722 INFO L131 PetriNetUnfolder]: For 72/81 co-relation queries the response was YES. [2023-01-27 19:10:24,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1105 events. 197/1105 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6613 event pairs, 1 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 673. Up to 32 conditions per place. [2023-01-27 19:10:24,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 69784 [2023-01-27 19:10:29,363 INFO L134 LiptonReduction]: Checked pairs total: 148412 [2023-01-27 19:10:29,363 INFO L136 LiptonReduction]: Total number of compositions: 248 [2023-01-27 19:10:29,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:10:29,365 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;@716ff148, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:10:29,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-01-27 19:10:29,368 INFO L130 PetriNetUnfolder]: 4/37 cut-off events. [2023-01-27 19:10:29,368 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:10:29,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:10:29,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:10:29,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-01-27 19:10:29,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:10:29,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1340889123, now seen corresponding path program 1 times [2023-01-27 19:10:29,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:10:29,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393939773] [2023-01-27 19:10:29,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:10:29,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:10:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:10:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:10:29,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:10:29,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393939773] [2023-01-27 19:10:29,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393939773] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:10:29,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:10:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 19:10:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821498877] [2023-01-27 19:10:29,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:10:29,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 19:10:29,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:10:29,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 19:10:29,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 19:10:29,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 593 [2023-01-27 19:10:29,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 144 transitions, 336 flow. Second operand has 5 states, 5 states have (on average 230.4) internal successors, (1152), 5 states have internal predecessors, (1152), 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) [2023-01-27 19:10:29,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:10:29,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 593 [2023-01-27 19:10:29,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand