/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:44:29,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:44:29,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:44:29,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:44:29,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:44:29,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:44:29,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:44:29,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:44:29,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:44:29,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:44:29,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:44:29,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:44:29,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:44:29,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:44:29,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:44:29,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:44:29,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:44:29,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:44:29,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:44:29,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:44:29,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:44:29,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:44:29,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:44:29,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:44:29,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:44:29,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:44:29,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:44:29,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:44:29,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:44:29,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:44:29,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:44:29,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:44:29,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:44:29,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:44:29,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:44:29,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:44:29,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:44:29,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:44:29,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:44:29,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:44:29,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:44:29,529 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-SemanticLbe.epf [2022-12-12 21:44:29,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:44:29,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:44:29,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:44:29,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:44:29,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:44:29,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:44:29,563 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:44:29,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:44:29,563 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:44:29,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:44:29,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:44:29,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:44:29,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:44:29,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:44:29,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:44:29,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:44:29,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:44:29,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:44:29,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:44:29,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:44:29,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:44:29,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:44:29,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:44:29,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:44:29,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:44:29,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:44:29,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:44:29,861 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:44:29,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2022-12-12 21:44:30,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:44:31,137 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:44:31,138 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2022-12-12 21:44:31,168 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97917c621/c9d52ef9184845dda161b4bc5ff2cbad/FLAG5e38e52cb [2022-12-12 21:44:31,181 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97917c621/c9d52ef9184845dda161b4bc5ff2cbad [2022-12-12 21:44:31,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:44:31,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:44:31,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:44:31,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:44:31,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:44:31,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:31,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dd02e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31, skipping insertion in model container [2022-12-12 21:44:31,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:31,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:44:31,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:44:31,403 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 21:44:31,775 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-2_3-container_of.i[75002,75015] [2022-12-12 21:44:31,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:44:31,832 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:44:31,841 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 21:44:31,873 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-2_3-container_of.i[75002,75015] [2022-12-12 21:44:31,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:44:31,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:44:31,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:44:31,995 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:44:31,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31 WrapperNode [2022-12-12 21:44:31,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:44:31,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:44:31,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:44:31,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:44:32,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,053 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-12 21:44:32,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:44:32,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:44:32,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:44:32,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:44:32,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:44:32,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:44:32,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:44:32,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:44:32,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (1/1) ... [2022-12-12 21:44:32,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:44:32,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:44:32,168 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) [2022-12-12 21:44:32,171 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 [2022-12-12 21:44:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:44:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:44:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-12 21:44:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-12 21:44:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:44:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:44:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:44:32,209 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:44:32,423 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:44:32,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:44:32,654 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:44:32,700 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:44:32,701 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:44:32,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:44:32 BoogieIcfgContainer [2022-12-12 21:44:32,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:44:32,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:44:32,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:44:32,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:44:32,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:44:31" (1/3) ... [2022-12-12 21:44:32,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20db5522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:44:32, skipping insertion in model container [2022-12-12 21:44:32,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:31" (2/3) ... [2022-12-12 21:44:32,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20db5522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:44:32, skipping insertion in model container [2022-12-12 21:44:32,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:44:32" (3/3) ... [2022-12-12 21:44:32,710 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-12-12 21:44:32,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:44:32,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-12 21:44:32,724 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:44:32,777 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 21:44:32,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 158 transitions, 332 flow [2022-12-12 21:44:32,854 INFO L130 PetriNetUnfolder]: 8/196 cut-off events. [2022-12-12 21:44:32,855 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 21:44:32,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 196 events. 8/196 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 340 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-12-12 21:44:32,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 158 transitions, 332 flow [2022-12-12 21:44:32,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 146 transitions, 304 flow [2022-12-12 21:44:32,863 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:44:32,876 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-12 21:44:32,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 146 transitions, 304 flow [2022-12-12 21:44:32,956 INFO L130 PetriNetUnfolder]: 5/177 cut-off events. [2022-12-12 21:44:32,957 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 21:44:32,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 5/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 288 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 93. Up to 4 conditions per place. [2022-12-12 21:44:32,960 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 146 transitions, 304 flow [2022-12-12 21:44:32,961 INFO L226 LiptonReduction]: Number of co-enabled transitions 2704 [2022-12-12 21:45:31,558 INFO L241 LiptonReduction]: Total number of compositions: 114 [2022-12-12 21:45:31,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:45:31,584 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;@62c7cbc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:45:31,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-12 21:45:31,588 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-12 21:45:31,588 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:45:31,589 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:31,589 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 21:45:31,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 21:45:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:31,615 INFO L85 PathProgramCache]: Analyzing trace with hash 576236, now seen corresponding path program 1 times [2022-12-12 21:45:31,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:31,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798460667] [2022-12-12 21:45:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:31,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:32,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:32,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798460667] [2022-12-12 21:45:32,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798460667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:32,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:32,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:45:32,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814987956] [2022-12-12 21:45:32,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:32,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 21:45:32,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:32,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 21:45:32,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 21:45:32,046 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2022-12-12 21:45:32,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2022-12-12 21:45:32,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:32,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2022-12-12 21:45:32,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:32,390 INFO L130 PetriNetUnfolder]: 2119/3699 cut-off events. [2022-12-12 21:45:32,390 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-12 21:45:32,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7120 conditions, 3699 events. 2119/3699 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 25591 event pairs, 2118 based on Foata normal form. 111/1927 useless extension candidates. Maximal degree in co-relation 6990. Up to 3383 conditions per place. [2022-12-12 21:45:32,411 INFO L137 encePairwiseOnDemand]: 51/52 looper letters, 41 selfloop transitions, 0 changer transitions 0/51 dead transitions. [2022-12-12 21:45:32,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 51 transitions, 196 flow [2022-12-12 21:45:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 21:45:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 21:45:32,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 62 transitions. [2022-12-12 21:45:32,422 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2022-12-12 21:45:32,424 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2022-12-12 21:45:32,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 51 transitions, 196 flow [2022-12-12 21:45:32,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 51 transitions, 196 flow [2022-12-12 21:45:32,439 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 196 flow [2022-12-12 21:45:32,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2022-12-12 21:45:32,441 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:32,442 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 21:45:32,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:45:32,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 21:45:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:32,447 INFO L85 PathProgramCache]: Analyzing trace with hash 17857647, now seen corresponding path program 1 times [2022-12-12 21:45:32,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:32,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221754714] [2022-12-12 21:45:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:32,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:32,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:32,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221754714] [2022-12-12 21:45:32,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221754714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:32,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:32,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:45:32,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901779547] [2022-12-12 21:45:32,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:32,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:32,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:32,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:32,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:32,676 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 52 [2022-12-12 21:45:32,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-12 21:45:32,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:32,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 52 [2022-12-12 21:45:32,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:33,209 INFO L130 PetriNetUnfolder]: 3816/6251 cut-off events. [2022-12-12 21:45:33,209 INFO L131 PetriNetUnfolder]: For 345/345 co-relation queries the response was YES. [2022-12-12 21:45:33,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17494 conditions, 6251 events. 3816/6251 cut-off events. For 345/345 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 39148 event pairs, 2506 based on Foata normal form. 0/3592 useless extension candidates. Maximal degree in co-relation 17247. Up to 5110 conditions per place. [2022-12-12 21:45:33,234 INFO L137 encePairwiseOnDemand]: 45/52 looper letters, 66 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2022-12-12 21:45:33,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 76 transitions, 432 flow [2022-12-12 21:45:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2022-12-12 21:45:33,236 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5448717948717948 [2022-12-12 21:45:33,237 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2022-12-12 21:45:33,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 76 transitions, 432 flow [2022-12-12 21:45:33,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 76 transitions, 432 flow [2022-12-12 21:45:33,255 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 76 transitions, 432 flow [2022-12-12 21:45:33,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-12 21:45:33,255 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:33,255 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 21:45:33,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:45:33,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 21:45:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash 553586206, now seen corresponding path program 1 times [2022-12-12 21:45:33,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:33,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490401750] [2022-12-12 21:45:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:33,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:33,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:33,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490401750] [2022-12-12 21:45:33,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490401750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:33,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:33,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:45:33,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916591012] [2022-12-12 21:45:33,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:33,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:33,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:33,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:33,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:33,406 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 52 [2022-12-12 21:45:33,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 76 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-12 21:45:33,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:33,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 52 [2022-12-12 21:45:33,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:33,997 INFO L130 PetriNetUnfolder]: 3955/6511 cut-off events. [2022-12-12 21:45:33,997 INFO L131 PetriNetUnfolder]: For 399/399 co-relation queries the response was YES. [2022-12-12 21:45:34,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24631 conditions, 6511 events. 3955/6511 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 41216 event pairs, 2563 based on Foata normal form. 240/3919 useless extension candidates. Maximal degree in co-relation 24305. Up to 5338 conditions per place. [2022-12-12 21:45:34,019 INFO L137 encePairwiseOnDemand]: 46/52 looper letters, 104 selfloop transitions, 10 changer transitions 3/121 dead transitions. [2022-12-12 21:45:34,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 121 transitions, 924 flow [2022-12-12 21:45:34,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2022-12-12 21:45:34,021 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2022-12-12 21:45:34,021 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2022-12-12 21:45:34,021 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 121 transitions, 924 flow [2022-12-12 21:45:34,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 118 transitions, 900 flow [2022-12-12 21:45:34,040 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 118 transitions, 900 flow [2022-12-12 21:45:34,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-12 21:45:34,040 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:34,041 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:34,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:45:34,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 21:45:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1409752959, now seen corresponding path program 1 times [2022-12-12 21:45:34,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:34,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481567627] [2022-12-12 21:45:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:34,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:34,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:34,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481567627] [2022-12-12 21:45:34,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481567627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:34,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:34,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:45:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819941605] [2022-12-12 21:45:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:34,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:34,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:34,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:34,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:34,197 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 52 [2022-12-12 21:45:34,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 118 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-12 21:45:34,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:34,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 52 [2022-12-12 21:45:34,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:34,843 INFO L130 PetriNetUnfolder]: 4875/7974 cut-off events. [2022-12-12 21:45:34,843 INFO L131 PetriNetUnfolder]: For 512/512 co-relation queries the response was YES. [2022-12-12 21:45:34,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37989 conditions, 7974 events. 4875/7974 cut-off events. For 512/512 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 51795 event pairs, 1362 based on Foata normal form. 0/4624 useless extension candidates. Maximal degree in co-relation 37440. Up to 6642 conditions per place. [2022-12-12 21:45:34,875 INFO L137 encePairwiseOnDemand]: 43/52 looper letters, 136 selfloop transitions, 8 changer transitions 0/148 dead transitions. [2022-12-12 21:45:34,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 148 transitions, 1421 flow [2022-12-12 21:45:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:34,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2022-12-12 21:45:34,877 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5576923076923077 [2022-12-12 21:45:34,877 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2022-12-12 21:45:34,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 148 transitions, 1421 flow [2022-12-12 21:45:34,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 148 transitions, 1421 flow [2022-12-12 21:45:34,943 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 148 transitions, 1421 flow [2022-12-12 21:45:34,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-12 21:45:34,943 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:34,943 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:34,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:45:34,943 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 21:45:34,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:34,944 INFO L85 PathProgramCache]: Analyzing trace with hash 752669102, now seen corresponding path program 1 times [2022-12-12 21:45:34,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:34,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809311630] [2022-12-12 21:45:34,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:34,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:35,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:35,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809311630] [2022-12-12 21:45:35,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809311630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:35,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:35,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:45:35,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704649745] [2022-12-12 21:45:35,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:35,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:35,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:35,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:35,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:35,025 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 52 [2022-12-12 21:45:35,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 148 transitions, 1421 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-12 21:45:35,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:35,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 52 [2022-12-12 21:45:35,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:35,881 INFO L130 PetriNetUnfolder]: 5630/9177 cut-off events. [2022-12-12 21:45:35,882 INFO L131 PetriNetUnfolder]: For 592/592 co-relation queries the response was YES. [2022-12-12 21:45:35,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52834 conditions, 9177 events. 5630/9177 cut-off events. For 592/592 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 60553 event pairs, 1425 based on Foata normal form. 0/5380 useless extension candidates. Maximal degree in co-relation 51967. Up to 7740 conditions per place. [2022-12-12 21:45:35,918 INFO L137 encePairwiseOnDemand]: 43/52 looper letters, 179 selfloop transitions, 16 changer transitions 0/199 dead transitions. [2022-12-12 21:45:35,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 199 transitions, 2310 flow [2022-12-12 21:45:35,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:35,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:35,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-12 21:45:35,919 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2022-12-12 21:45:35,920 INFO L295 CegarLoopForPetriNet]: 56 programPoint places, 8 predicate places. [2022-12-12 21:45:35,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 199 transitions, 2310 flow [2022-12-12 21:45:35,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 199 transitions, 2310 flow [2022-12-12 21:45:35,952 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 199 transitions, 2310 flow [2022-12-12 21:45:35,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-12 21:45:35,953 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:35,953 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:35,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:45:35,953 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-12 21:45:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:35,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1831699914, now seen corresponding path program 1 times [2022-12-12 21:45:35,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:35,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872760010] [2022-12-12 21:45:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:35,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 21:45:35,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 21:45:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 21:45:36,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 21:45:36,024 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 21:45:36,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-12-12 21:45:36,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-12-12 21:45:36,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-12-12 21:45:36,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-12-12 21:45:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-12-12 21:45:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-12-12 21:45:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-12 21:45:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-12 21:45:36,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:45:36,027 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-12 21:45:36,031 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:45:36,031 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:45:36,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:45:36 BasicIcfg [2022-12-12 21:45:36,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:45:36,071 INFO L158 Benchmark]: Toolchain (without parser) took 64885.53ms. Allocated memory was 217.1MB in the beginning and 738.2MB in the end (delta: 521.1MB). Free memory was 189.7MB in the beginning and 473.7MB in the end (delta: -284.0MB). Peak memory consumption was 237.0MB. Max. memory is 8.0GB. [2022-12-12 21:45:36,075 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 217.1MB. Free memory was 193.3MB in the beginning and 193.2MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:45:36,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.76ms. Allocated memory is still 217.1MB. Free memory was 189.7MB in the beginning and 133.5MB in the end (delta: 56.2MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-12 21:45:36,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.69ms. Allocated memory is still 217.1MB. Free memory was 133.5MB in the beginning and 129.8MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 21:45:36,076 INFO L158 Benchmark]: Boogie Preprocessor took 62.75ms. Allocated memory is still 217.1MB. Free memory was 129.8MB in the beginning and 127.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 21:45:36,076 INFO L158 Benchmark]: RCFGBuilder took 586.17ms. Allocated memory is still 217.1MB. Free memory was 127.2MB in the beginning and 99.4MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-12 21:45:36,076 INFO L158 Benchmark]: TraceAbstraction took 63364.75ms. Allocated memory was 217.1MB in the beginning and 738.2MB in the end (delta: 521.1MB). Free memory was 97.8MB in the beginning and 473.7MB in the end (delta: -375.9MB). Peak memory consumption was 144.7MB. Max. memory is 8.0GB. [2022-12-12 21:45:36,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 217.1MB. Free memory was 193.3MB in the beginning and 193.2MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 809.76ms. Allocated memory is still 217.1MB. Free memory was 189.7MB in the beginning and 133.5MB in the end (delta: 56.2MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.69ms. Allocated memory is still 217.1MB. Free memory was 133.5MB in the beginning and 129.8MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.75ms. Allocated memory is still 217.1MB. Free memory was 129.8MB in the beginning and 127.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 586.17ms. Allocated memory is still 217.1MB. Free memory was 127.2MB in the beginning and 99.4MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 63364.75ms. Allocated memory was 217.1MB in the beginning and 738.2MB in the end (delta: 521.1MB). Free memory was 97.8MB in the beginning and 473.7MB in the end (delta: -375.9MB). Peak memory consumption was 144.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.6s, 148 PlacesBefore, 56 PlacesAfterwards, 146 TransitionsBefore, 52 TransitionsAfterwards, 2704 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 60 TrivialYvCompositions, 49 ConcurrentYvCompositions, 2 ChoiceCompositions, 114 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3028, independent: 2885, independent conditional: 2885, independent unconditional: 0, dependent: 78, dependent conditional: 78, dependent unconditional: 0, unknown: 65, unknown conditional: 65, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3028, independent: 2885, independent conditional: 0, independent unconditional: 2885, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 65, unknown conditional: 0, unknown unconditional: 65] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3028, independent: 2885, independent conditional: 0, independent unconditional: 2885, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 65, unknown conditional: 0, unknown unconditional: 65] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3028, independent: 2885, independent conditional: 0, independent unconditional: 2885, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 65, unknown conditional: 0, unknown unconditional: 65] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1856, independent: 1795, independent conditional: 0, independent unconditional: 1795, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1856, independent: 1786, independent conditional: 0, independent unconditional: 1786, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48434, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 893, dependent conditional: 0, dependent unconditional: 893, unknown: 47478, unknown conditional: 0, unknown unconditional: 47478] ], Cache Queries: [ total: 3028, independent: 1090, independent conditional: 0, independent unconditional: 1090, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 1899, unknown conditional: 0, unknown unconditional: 1899] , Statistics on independence cache: Total cache size (in pairs): 4068, Positive cache size: 4029, Positive conditional cache size: 0, Positive unconditional cache size: 4029, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 22, Unknown conditional cache size: 0, Unknown unconditional cache size: 22, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-2, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: 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: 1675]: 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: 1675]: 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: 1675]: 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: 1675]: 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: 1713]: 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. - UnprovableResult [Line: 1714]: 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 4 procedures, 168 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 63.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 58.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 484 IncrementalHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 20 mSDtfsCounter, 484 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2310occurred in iteration=5, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-12-12 21:45:36,140 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...