/usr/bin/java -Xmx8000000000 -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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:22:16,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:22:16,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:22:16,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 23:22:16,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 23:22:16,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 23:22:16,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 23:22:16,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 23:22:16,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 23:22:16,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 23:22:16,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 23:22:16,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 23:22:16,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:22:16,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:22:16,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:22:16,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:22:16,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:22:16,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:22:16,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:22:16,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:22:16,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:22:16,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:22:16,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:22:16,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:22:16,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 23:22:16,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 23:22:16,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 23:22:16,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 23:22:16,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 23:22:16,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 23:22:16,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 23:22:16,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 23:22:16,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 23:22:16,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:22:16,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:22:16,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:22:16,198 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-RepeatedSemanticLbe.epf [2022-12-05 23:22:16,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:22:16,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:22:16,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:22:16,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:22:16,239 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:22:16,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:22:16,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:22:16,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:22:16,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:22:16,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:22:16,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:22:16,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:22:16,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:22:16,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:22:16,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:22:16,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:22:16,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:22:16,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:22:16,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:22:16,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:22:16,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:22:16,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:22:16,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:22:16,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:22:16,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:22:16,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:22:16,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:22:16,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:22:16,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:22:16,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:22:16,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:22:16,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:22:16,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:22:16,602 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:22:16,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2022-12-05 23:22:17,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:22:17,962 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:22:17,963 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2022-12-05 23:22:17,989 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567dcc179/c381fd200dd74466ac08f8cb47e07b35/FLAG27b0f4e59 [2022-12-05 23:22:18,008 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567dcc179/c381fd200dd74466ac08f8cb47e07b35 [2022-12-05 23:22:18,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:22:18,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:22:18,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:22:18,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:22:18,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:22:18,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:18,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169dc83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18, skipping insertion in model container [2022-12-05 23:22:18,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:18,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:22:18,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:22:18,709 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2022-12-05 23:22:18,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:22:18,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:22:18,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:22:18,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:22:18,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:22:18,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:22:18,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:22:18,740 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:22:18,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2022-12-05 23:22:18,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:22:18,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:22:18,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:22:18,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:22:18,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 23:22:18,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 23:22:18,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:22:18,915 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:22:18,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18 WrapperNode [2022-12-05 23:22:18,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:22:18,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:22:18,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:22:18,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:22:18,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:18,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:18,973 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2022-12-05 23:22:18,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:22:18,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:22:18,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:22:18,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:22:18,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:18,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:18,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:18,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:19,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:19,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:19,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:19,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:19,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:22:19,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:22:19,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:22:19,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:22:19,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (1/1) ... [2022-12-05 23:22:19,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:22:19,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:22:19,060 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) [2022-12-05 23:22:19,075 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 [2022-12-05 23:22:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 23:22:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:22:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 23:22:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 23:22:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 23:22:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:22:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 23:22:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:22:19,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:22:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:22:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 23:22:19,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 23:22:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:22:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:22:19,110 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:22:19,417 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:22:19,419 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:22:19,565 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:22:19,598 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:22:19,598 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:22:19,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:22:19 BoogieIcfgContainer [2022-12-05 23:22:19,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:22:19,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:22:19,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:22:19,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:22:19,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:22:18" (1/3) ... [2022-12-05 23:22:19,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b57619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:22:19, skipping insertion in model container [2022-12-05 23:22:19,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:18" (2/3) ... [2022-12-05 23:22:19,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b57619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:22:19, skipping insertion in model container [2022-12-05 23:22:19,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:22:19" (3/3) ... [2022-12-05 23:22:19,616 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2022-12-05 23:22:19,635 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:22:19,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 23:22:19,636 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:22:19,706 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 23:22:19,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 196 flow [2022-12-05 23:22:19,803 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-12-05 23:22:19,804 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:22:19,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 4/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 62. Up to 3 conditions per place. [2022-12-05 23:22:19,807 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 196 flow [2022-12-05 23:22:19,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 77 transitions, 160 flow [2022-12-05 23:22:19,813 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:22:19,834 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-05 23:22:19,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 77 transitions, 160 flow [2022-12-05 23:22:19,868 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2022-12-05 23:22:19,868 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:22:19,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 1/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-05 23:22:19,871 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-05 23:22:19,872 INFO L188 LiptonReduction]: Number of co-enabled transitions 182 [2022-12-05 23:22:19,955 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:19,956 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:19,960 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:19,961 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:20,321 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:20,322 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:20,325 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:20,326 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:21,103 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:21,105 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:21,109 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:21,109 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:21,310 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:21,311 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:21,313 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:21,314 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:22,346 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:22,347 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:22,349 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:22,349 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:22,874 INFO L203 LiptonReduction]: Total number of compositions: 68 [2022-12-05 23:22:22,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:22:22,905 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=REPEATED_LIPTON_PN, 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;@8aa525d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:22:22,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 23:22:22,906 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 23:22:22,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:22:22,906 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:22:22,907 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-05 23:22:22,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 23:22:22,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:22:22,911 INFO L85 PathProgramCache]: Analyzing trace with hash 349, now seen corresponding path program 1 times [2022-12-05 23:22:22,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:22:22,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162652445] [2022-12-05 23:22:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:22:22,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:22:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:22:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:22:23,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:22:23,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162652445] [2022-12-05 23:22:23,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162652445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:22:23,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:22:23,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-05 23:22:23,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739807308] [2022-12-05 23:22:23,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:22:23,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 23:22:23,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:22:23,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 23:22:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 23:22:23,208 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 11 [2022-12-05 23:22:23,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 28 flow. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-05 23:22:23,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:22:23,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 11 [2022-12-05 23:22:23,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:22:23,241 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2022-12-05 23:22:23,241 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:22:23,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 3/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 3 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 21. Up to 14 conditions per place. [2022-12-05 23:22:23,242 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 5 selfloop transitions, 0 changer transitions 2/8 dead transitions. [2022-12-05 23:22:23,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 36 flow [2022-12-05 23:22:23,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 23:22:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 23:22:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 12 transitions. [2022-12-05 23:22:23,252 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2022-12-05 23:22:23,254 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 28 flow. Second operand 2 states and 12 transitions. [2022-12-05 23:22:23,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 36 flow [2022-12-05 23:22:23,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 32 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 23:22:23,257 INFO L231 Difference]: Finished difference. Result has 11 places, 6 transitions, 13 flow [2022-12-05 23:22:23,259 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=13, PETRI_PLACES=11, PETRI_TRANSITIONS=6} [2022-12-05 23:22:23,263 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2022-12-05 23:22:23,265 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:22:23,271 INFO L89 Accepts]: Start accepts. Operand has 11 places, 6 transitions, 13 flow [2022-12-05 23:22:23,274 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:22:23,274 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:22:23,274 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 6 transitions, 13 flow [2022-12-05 23:22:23,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 8 places, 6 transitions, 13 flow [2022-12-05 23:22:23,287 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-05 23:22:23,287 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:22:23,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 5 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-05 23:22:23,289 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 8 places, 6 transitions, 13 flow [2022-12-05 23:22:23,289 INFO L188 LiptonReduction]: Number of co-enabled transitions 8 [2022-12-05 23:22:23,295 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:22:23,300 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 35 [2022-12-05 23:22:23,300 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 6 transitions, 13 flow [2022-12-05 23:22:23,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-05 23:22:23,301 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:22:23,301 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 23:22:23,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:22:23,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 23:22:23,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:22:23,302 INFO L85 PathProgramCache]: Analyzing trace with hash 10759821, now seen corresponding path program 1 times [2022-12-05 23:22:23,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:22:23,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638676368] [2022-12-05 23:22:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:22:23,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:22:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:22:23,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:22:23,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:22:23,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638676368] [2022-12-05 23:22:23,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638676368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:22:23,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:22:23,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:22:23,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653492251] [2022-12-05 23:22:23,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:22:23,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 23:22:23,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:22:23,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 23:22:23,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 23:22:23,522 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 6 [2022-12-05 23:22:23,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 6 transitions, 13 flow. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-05 23:22:23,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:22:23,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 6 [2022-12-05 23:22:23,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:22:23,536 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-05 23:22:23,536 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:22:23,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 2/10 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-12-05 23:22:23,536 INFO L137 encePairwiseOnDemand]: 3/6 looper letters, 3 selfloop transitions, 2 changer transitions 2/7 dead transitions. [2022-12-05 23:22:23,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 7 transitions, 27 flow [2022-12-05 23:22:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 23:22:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 23:22:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-12-05 23:22:23,538 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-05 23:22:23,538 INFO L175 Difference]: Start difference. First operand has 8 places, 6 transitions, 13 flow. Second operand 3 states and 10 transitions. [2022-12-05 23:22:23,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 7 transitions, 27 flow [2022-12-05 23:22:23,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 23:22:23,539 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2022-12-05 23:22:23,539 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=6, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2022-12-05 23:22:23,540 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2022-12-05 23:22:23,540 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:22:23,540 INFO L89 Accepts]: Start accepts. Operand has 11 places, 5 transitions, 19 flow [2022-12-05 23:22:23,540 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:22:23,541 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:22:23,541 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 5 transitions, 19 flow [2022-12-05 23:22:23,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 10 places, 5 transitions, 19 flow [2022-12-05 23:22:23,543 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-05 23:22:23,543 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:22:23,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 5 events. 0/5 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-05 23:22:23,544 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 10 places, 5 transitions, 19 flow [2022-12-05 23:22:23,544 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-05 23:22:23,549 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [257] L1712-4-->L1715: Formula: (= 2 v_~pdev~0_23) InVars {} OutVars{~pdev~0=v_~pdev~0_23, ULTIMATE.start_module_init_#t~pre33#1=|v_ULTIMATE.start_module_init_#t~pre33#1_11|, ULTIMATE.start_module_init_#t~nondet34#1=|v_ULTIMATE.start_module_init_#t~nondet34#1_5|} AuxVars[] AssignedVars[~pdev~0, ULTIMATE.start_module_init_#t~pre33#1, ULTIMATE.start_module_init_#t~nondet34#1] and [280] $Ultimate##0-->thread1EXIT: Formula: (let ((.cse0 (select |v_#pthreadsMutex_46| |v_~#mutex~0.base_32|))) (and (= |v_#pthreadsMutex_45| (store |v_#pthreadsMutex_46| |v_~#mutex~0.base_32| (store .cse0 |v_~#mutex~0.offset_32| 0))) (= |v_thread1Thread1of1ForFork0_#res.offset_19| 0) (= 6 v_~pdev~0_49) (= |v_thread1Thread1of1ForFork0_#in~arg.base_5| v_thread1Thread1of1ForFork0_~arg.base_5) (= |v_thread1Thread1of1ForFork0_#res.base_19| 0) (= (select .cse0 |v_~#mutex~0.offset_32|) 0) (= |v_thread1Thread1of1ForFork0_#in~arg.offset_5| v_thread1Thread1of1ForFork0_~arg.offset_5))) InVars {#pthreadsMutex=|v_#pthreadsMutex_46|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_5|, ~#mutex~0.base=|v_~#mutex~0.base_32|, ~#mutex~0.offset=|v_~#mutex~0.offset_32|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_5|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_45|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_5|, thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_19|, ~#mutex~0.base=|v_~#mutex~0.base_32|, ~pdev~0=v_~pdev~0_49, thread1Thread1of1ForFork0_~arg.offset=v_thread1Thread1of1ForFork0_~arg.offset_5, thread1Thread1of1ForFork0_~arg.base=v_thread1Thread1of1ForFork0_~arg.base_5, ~#mutex~0.offset=|v_~#mutex~0.offset_32|, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_19|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_5|, thread1Thread1of1ForFork0_#t~nondet31=|v_thread1Thread1of1ForFork0_#t~nondet31_17|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork0_#res.base, ~pdev~0, thread1Thread1of1ForFork0_~arg.offset, thread1Thread1of1ForFork0_~arg.base, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_#t~nondet31] [2022-12-05 23:22:23,601 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [324] L1712-4-->thread1EXIT: Formula: (let ((.cse0 (select |v_#pthreadsMutex_114| |v_~#mutex~0.base_82|))) (and (= (select .cse0 |v_~#mutex~0.offset_82|) 0) (= |v_thread1Thread1of1ForFork0_#in~arg.base_21| v_thread1Thread1of1ForFork0_~arg.base_21) (= (store |v_#pthreadsMutex_114| |v_~#mutex~0.base_82| (store .cse0 |v_~#mutex~0.offset_82| 0)) |v_#pthreadsMutex_113|) (= 6 v_~pdev~0_129) (= |v_thread1Thread1of1ForFork0_#res.offset_35| 0) (= |v_thread1Thread1of1ForFork0_#res.base_35| 0) (= |v_thread1Thread1of1ForFork0_#in~arg.offset_21| v_thread1Thread1of1ForFork0_~arg.offset_21))) InVars {#pthreadsMutex=|v_#pthreadsMutex_114|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_21|, ~#mutex~0.base=|v_~#mutex~0.base_82|, ~#mutex~0.offset=|v_~#mutex~0.offset_82|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_21|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_113|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_21|, thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_35|, ~#mutex~0.base=|v_~#mutex~0.base_82|, thread1Thread1of1ForFork0_~arg.offset=v_thread1Thread1of1ForFork0_~arg.offset_21, ULTIMATE.start_module_init_#t~pre33#1=|v_ULTIMATE.start_module_init_#t~pre33#1_51|, ~#mutex~0.offset=|v_~#mutex~0.offset_82|, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_35|, ~pdev~0=v_~pdev~0_129, thread1Thread1of1ForFork0_~arg.base=v_thread1Thread1of1ForFork0_~arg.base_21, ULTIMATE.start_module_init_#t~nondet34#1=|v_ULTIMATE.start_module_init_#t~nondet34#1_37|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_21|, thread1Thread1of1ForFork0_#t~nondet31=|v_thread1Thread1of1ForFork0_#t~nondet31_33|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_~arg.offset, ~pdev~0, ULTIMATE.start_module_init_#t~pre33#1, thread1Thread1of1ForFork0_~arg.base, ULTIMATE.start_module_init_#t~nondet34#1, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_#t~nondet31] and [186] L1715-->ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start_ldv_assert_#in~expression#1_13| (ite (= 2 v_~pdev~0_15) 1 0)) (= |v_ULTIMATE.start_ldv_assert_~expression#1_29| 0) (= |v_ULTIMATE.start_ldv_assert_~expression#1_29| |v_ULTIMATE.start_ldv_assert_#in~expression#1_13|)) InVars {~pdev~0=v_~pdev~0_15} OutVars{ULTIMATE.start_ldv_assert_~expression#1=|v_ULTIMATE.start_ldv_assert_~expression#1_29|, ~pdev~0=v_~pdev~0_15, ULTIMATE.start_ldv_assert_#in~expression#1=|v_ULTIMATE.start_ldv_assert_#in~expression#1_13|} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression#1, ULTIMATE.start_ldv_assert_#in~expression#1] [2022-12-05 23:22:23,684 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-05 23:22:23,685 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 145 [2022-12-05 23:22:23,685 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 3 transitions, 13 flow [2022-12-05 23:22:23,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-05 23:22:23,685 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:22:23,686 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 23:22:23,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 23:22:23,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 23:22:23,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:22:23,686 INFO L85 PathProgramCache]: Analyzing trace with hash 347153, now seen corresponding path program 1 times [2022-12-05 23:22:23,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:22:23,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110995026] [2022-12-05 23:22:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:22:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:22:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:22:23,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 23:22:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:22:23,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 23:22:23,769 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 23:22:23,770 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 23:22:23,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 23:22:23,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-12-05 23:22:23,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-05 23:22:23,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-05 23:22:23,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 23:22:23,772 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-05 23:22:23,777 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:22:23,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:22:23,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:22:23 BasicIcfg [2022-12-05 23:22:23,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:22:23,805 INFO L158 Benchmark]: Toolchain (without parser) took 5789.41ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 177.4MB in the beginning and 151.3MB in the end (delta: 26.1MB). Peak memory consumption was 68.0MB. Max. memory is 8.0GB. [2022-12-05 23:22:23,805 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 204.5MB. Free memory was 182.0MB in the beginning and 181.9MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:22:23,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 900.81ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 177.4MB in the beginning and 216.3MB in the end (delta: -39.0MB). Peak memory consumption was 61.2MB. Max. memory is 8.0GB. [2022-12-05 23:22:23,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.89ms. Allocated memory is still 245.4MB. Free memory was 216.3MB in the beginning and 213.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 23:22:23,807 INFO L158 Benchmark]: Boogie Preprocessor took 42.09ms. Allocated memory is still 245.4MB. Free memory was 213.2MB in the beginning and 211.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:22:23,808 INFO L158 Benchmark]: RCFGBuilder took 588.16ms. Allocated memory is still 245.4MB. Free memory was 211.1MB in the beginning and 189.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-05 23:22:23,808 INFO L158 Benchmark]: TraceAbstraction took 4193.61ms. Allocated memory is still 245.4MB. Free memory was 189.1MB in the beginning and 151.3MB in the end (delta: 37.8MB). Peak memory consumption was 37.3MB. Max. memory is 8.0GB. [2022-12-05 23:22:23,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 204.5MB. Free memory was 182.0MB in the beginning and 181.9MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 900.81ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 177.4MB in the beginning and 216.3MB in the end (delta: -39.0MB). Peak memory consumption was 61.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.89ms. Allocated memory is still 245.4MB. Free memory was 216.3MB in the beginning and 213.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.09ms. Allocated memory is still 245.4MB. Free memory was 213.2MB in the beginning and 211.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 588.16ms. Allocated memory is still 245.4MB. Free memory was 211.1MB in the beginning and 189.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4193.61ms. Allocated memory is still 245.4MB. Free memory was 189.1MB in the beginning and 151.3MB in the end (delta: 37.8MB). Peak memory consumption was 37.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 80 PlacesBefore, 15 PlacesAfterwards, 77 TransitionsBefore, 11 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 50 TrivialYvCompositions, 16 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 116, independent: 105, independent conditional: 105, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 116, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 116, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 116, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 102, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 102, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 116, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 102, unknown conditional: 0, unknown unconditional: 102] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 162, Positive conditional cache size: 0, Positive unconditional cache size: 162, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 8 PlacesBefore, 8 PlacesAfterwards, 6 TransitionsBefore, 6 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 10 PlacesBefore, 8 PlacesAfterwards, 5 TransitionsBefore, 3 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1714] 0 pdev = 2 [L1702] 0 pdev = 6 [L1705] 0 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-05 23:22:23,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...