/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 --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 02:11:27,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 02:11:27,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 02:11:27,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 02:11:27,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 02:11:27,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 02:11:27,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 02:11:27,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 02:11:27,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 02:11:27,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 02:11:27,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 02:11:27,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 02:11:27,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 02:11:27,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 02:11:27,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 02:11:27,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 02:11:27,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 02:11:27,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 02:11:27,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 02:11:27,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 02:11:27,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 02:11:27,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 02:11:27,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 02:11:27,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 02:11:27,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 02:11:27,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 02:11:27,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 02:11:27,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 02:11:27,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 02:11:27,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 02:11:27,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 02:11:27,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 02:11:27,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 02:11:27,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 02:11:27,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 02:11:27,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 02:11:27,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 02:11:27,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 02:11:27,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 02:11:27,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 02:11:27,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 02:11:27,165 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 [2022-12-06 02:11:27,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 02:11:27,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 02:11:27,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 02:11:27,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 02:11:27,195 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 02:11:27,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 02:11:27,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 02:11:27,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 02:11:27,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 02:11:27,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 02:11:27,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 02:11:27,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:11:27,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 02:11:27,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 02:11:27,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 02:11:27,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 02:11:27,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 02:11:27,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 02:11:27,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 02:11:27,493 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 02:11:27,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-12-06 02:11:28,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 02:11:28,750 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 02:11:28,751 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-12-06 02:11:28,766 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acc41b7df/e2d6e65f2824460292e92584c52b761c/FLAG674ad03f6 [2022-12-06 02:11:28,779 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acc41b7df/e2d6e65f2824460292e92584c52b761c [2022-12-06 02:11:28,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 02:11:28,782 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 02:11:28,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 02:11:28,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 02:11:28,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 02:11:28,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:11:28" (1/1) ... [2022-12-06 02:11:28,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb895f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:28, skipping insertion in model container [2022-12-06 02:11:28,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:11:28" (1/1) ... [2022-12-06 02:11:28,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 02:11:28,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 02:11:28,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:28,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:28,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-12-06 02:11:29,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:11:29,056 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 02:11:29,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:29,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:29,123 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-12-06 02:11:29,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:11:29,134 INFO L208 MainTranslator]: Completed translation [2022-12-06 02:11:29,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29 WrapperNode [2022-12-06 02:11:29,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 02:11:29,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 02:11:29,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 02:11:29,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 02:11:29,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,193 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 392 [2022-12-06 02:11:29,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 02:11:29,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 02:11:29,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 02:11:29,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 02:11:29,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 02:11:29,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 02:11:29,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 02:11:29,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 02:11:29,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (1/1) ... [2022-12-06 02:11:29,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:11:29,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:11:29,260 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) [2022-12-06 02:11:29,283 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 [2022-12-06 02:11:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 02:11:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 02:11:29,313 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 02:11:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 02:11:29,313 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 02:11:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 02:11:29,313 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 02:11:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 02:11:29,313 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 02:11:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 02:11:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 02:11:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 02:11:29,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 02:11:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 02:11:29,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 02:11:29,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 02:11:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 02:11:29,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 02:11:29,322 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 02:11:29,480 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 02:11:29,481 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 02:11:29,738 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 02:11:29,923 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 02:11:29,928 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 02:11:29,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:11:29 BoogieIcfgContainer [2022-12-06 02:11:29,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 02:11:29,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 02:11:29,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 02:11:29,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 02:11:29,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 02:11:28" (1/3) ... [2022-12-06 02:11:29,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2333f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:11:29, skipping insertion in model container [2022-12-06 02:11:29,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:29" (2/3) ... [2022-12-06 02:11:29,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2333f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:11:29, skipping insertion in model container [2022-12-06 02:11:29,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:11:29" (3/3) ... [2022-12-06 02:11:29,936 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-12-06 02:11:29,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 02:11:29,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 02:11:29,949 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 02:11:30,017 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 02:11:30,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 195 transitions, 422 flow [2022-12-06 02:11:30,167 INFO L130 PetriNetUnfolder]: 2/191 cut-off events. [2022-12-06 02:11:30,168 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 02:11:30,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 191 events. 2/191 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 204 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2022-12-06 02:11:30,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 195 transitions, 422 flow [2022-12-06 02:11:30,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 179 transitions, 382 flow [2022-12-06 02:11:30,181 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:11:30,206 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 179 transitions, 382 flow [2022-12-06 02:11:30,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 179 transitions, 382 flow [2022-12-06 02:11:30,254 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-12-06 02:11:30,254 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 02:11:30,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 179 events. 2/179 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 203 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2022-12-06 02:11:30,260 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 179 transitions, 382 flow [2022-12-06 02:11:30,260 INFO L188 LiptonReduction]: Number of co-enabled transitions 5712 [2022-12-06 02:11:36,348 INFO L203 LiptonReduction]: Total number of compositions: 110 [2022-12-06 02:11:36,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 02:11:36,368 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;@bbe655a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 02:11:36,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 02:11:36,387 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-12-06 02:11:36,387 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 02:11:36,387 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:11:36,388 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:11:36,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 02:11:36,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:11:36,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1008108662, now seen corresponding path program 1 times [2022-12-06 02:11:36,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:11:36,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964314130] [2022-12-06 02:11:36,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:11:36,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:11:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:11:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:11:37,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:11:37,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964314130] [2022-12-06 02:11:37,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964314130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:11:37,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:11:37,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 02:11:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311540539] [2022-12-06 02:11:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:11:37,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 02:11:37,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:11:37,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 02:11:37,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-06 02:11:37,439 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 69 [2022-12-06 02:11:37,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 69 transitions, 162 flow. Second operand has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 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) [2022-12-06 02:11:37,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:11:37,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 69 [2022-12-06 02:11:37,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:11:52,587 INFO L130 PetriNetUnfolder]: 182045/244047 cut-off events. [2022-12-06 02:11:52,587 INFO L131 PetriNetUnfolder]: For 8108/8108 co-relation queries the response was YES. [2022-12-06 02:11:52,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495385 conditions, 244047 events. 182045/244047 cut-off events. For 8108/8108 co-relation queries the response was YES. Maximal size of possible extension queue 3891. Compared 1574792 event pairs, 68259 based on Foata normal form. 1/243810 useless extension candidates. Maximal degree in co-relation 450360. Up to 90209 conditions per place. [2022-12-06 02:11:53,596 INFO L137 encePairwiseOnDemand]: 59/69 looper letters, 352 selfloop transitions, 25 changer transitions 34/419 dead transitions. [2022-12-06 02:11:53,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 419 transitions, 1813 flow [2022-12-06 02:11:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 02:11:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 02:11:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 524 transitions. [2022-12-06 02:11:53,606 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5424430641821946 [2022-12-06 02:11:53,609 INFO L294 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2022-12-06 02:11:53,611 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:11:53,611 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 419 transitions, 1813 flow [2022-12-06 02:11:54,530 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 419 transitions, 1813 flow [2022-12-06 02:11:54,530 INFO L188 LiptonReduction]: Number of co-enabled transitions 2568 [2022-12-06 02:11:55,150 INFO L203 LiptonReduction]: Total number of compositions: 8 [2022-12-06 02:11:55,153 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1544 [2022-12-06 02:11:55,153 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 415 transitions, 1805 flow [2022-12-06 02:11:55,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 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) [2022-12-06 02:11:55,153 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:11:55,153 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:11:55,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 02:11:55,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 02:11:55,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:11:55,157 INFO L85 PathProgramCache]: Analyzing trace with hash 742126023, now seen corresponding path program 1 times [2022-12-06 02:11:55,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:11:55,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911800616] [2022-12-06 02:11:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:11:55,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:11:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:11:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:11:56,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:11:56,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911800616] [2022-12-06 02:11:56,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911800616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:11:56,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:11:56,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 02:11:56,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098347974] [2022-12-06 02:11:56,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:11:56,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 02:11:56,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:11:56,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 02:11:56,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-06 02:11:56,030 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 90 [2022-12-06 02:11:56,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 415 transitions, 1805 flow. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 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) [2022-12-06 02:11:56,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:11:56,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 90 [2022-12-06 02:11:56,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:12:16,785 INFO L130 PetriNetUnfolder]: 260009/349484 cut-off events. [2022-12-06 02:12:16,785 INFO L131 PetriNetUnfolder]: For 85096/85224 co-relation queries the response was YES. [2022-12-06 02:12:17,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989611 conditions, 349484 events. 260009/349484 cut-off events. For 85096/85224 co-relation queries the response was YES. Maximal size of possible extension queue 4542. Compared 2245740 event pairs, 121006 based on Foata normal form. 4006/353386 useless extension candidates. Maximal degree in co-relation 913842. Up to 274305 conditions per place. [2022-12-06 02:12:18,542 INFO L137 encePairwiseOnDemand]: 70/90 looper letters, 667 selfloop transitions, 66 changer transitions 34/821 dead transitions. [2022-12-06 02:12:18,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 821 transitions, 5034 flow [2022-12-06 02:12:18,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 02:12:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 02:12:18,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 356 transitions. [2022-12-06 02:12:18,544 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3595959595959596 [2022-12-06 02:12:18,545 INFO L294 CegarLoopForPetriNet]: 82 programPoint places, 19 predicate places. [2022-12-06 02:12:18,546 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:12:18,546 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 821 transitions, 5034 flow [2022-12-06 02:12:19,796 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 821 transitions, 5034 flow [2022-12-06 02:12:19,796 INFO L188 LiptonReduction]: Number of co-enabled transitions 250 [2022-12-06 02:12:19,887 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:12:19,887 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1342 [2022-12-06 02:12:19,888 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 821 transitions, 5034 flow [2022-12-06 02:12:19,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 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) [2022-12-06 02:12:19,888 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:12:19,888 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:12:19,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 02:12:19,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 02:12:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:12:19,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1007934459, now seen corresponding path program 1 times [2022-12-06 02:12:19,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:12:19,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463849637] [2022-12-06 02:12:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:12:19,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:12:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:12:20,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:12:20,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:12:20,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463849637] [2022-12-06 02:12:20,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463849637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:12:20,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:12:20,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 02:12:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745840021] [2022-12-06 02:12:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:12:20,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 02:12:20,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:12:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 02:12:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-06 02:12:20,300 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 90 [2022-12-06 02:12:20,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 821 transitions, 5034 flow. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 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) [2022-12-06 02:12:20,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:12:20,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 90 [2022-12-06 02:12:20,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand