/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:37:20,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:37:20,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:37:20,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:37:20,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:37:20,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:37:20,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:37:20,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:37:20,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:37:20,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:37:20,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:37:20,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:37:20,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:37:20,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:37:20,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:37:20,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:37:20,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:37:20,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:37:20,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:37:20,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:37:20,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:37:20,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:37:20,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:37:21,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:37:21,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:37:21,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:37:21,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:37:21,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:37:21,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:37:21,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:37:21,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:37:21,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:37:21,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:37:21,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:37:21,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:37:21,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:37:21,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:37:21,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:37:21,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:37:21,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:37:21,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:37:21,015 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-NoLbe.epf [2022-12-12 12:37:21,046 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:37:21,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:37:21,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:37:21,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:37:21,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:37:21,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:37:21,049 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:37:21,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:37:21,050 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:37:21,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:37:21,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:37:21,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:37:21,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:37:21,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:37:21,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:37:21,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:37:21,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:37:21,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:37:21,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:37:21,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:37:21,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:37:21,342 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:37:21,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2022-12-12 12:37:22,434 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:37:22,635 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:37:22,636 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-symm.wvr.c [2022-12-12 12:37:22,648 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caaca1140/b517da708d41463ba39ff864f5ed8ba8/FLAG6504f2cea [2022-12-12 12:37:22,659 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caaca1140/b517da708d41463ba39ff864f5ed8ba8 [2022-12-12 12:37:22,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:37:22,661 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:37:22,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:37:22,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:37:22,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:37:22,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:22,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2249be45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22, skipping insertion in model container [2022-12-12 12:37:22,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:22,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:37:22,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:37:22,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,871 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/chl-poker-hand-symm.wvr.c[12821,12834] [2022-12-12 12:37:22,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:37:22,895 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:37:22,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:37:22,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:37:22,981 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/chl-poker-hand-symm.wvr.c[12821,12834] [2022-12-12 12:37:22,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:37:22,998 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:37:22,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22 WrapperNode [2022-12-12 12:37:22,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:37:23,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:37:23,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:37:23,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:37:23,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,090 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1522 [2022-12-12 12:37:23,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:37:23,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:37:23,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:37:23,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:37:23,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:37:23,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:37:23,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:37:23,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:37:23,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (1/1) ... [2022-12-12 12:37:23,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:37:23,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:23,223 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 12:37:23,239 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 12:37:23,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:37:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:37:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:37:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 12:37:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 12:37:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 12:37:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 12:37:23,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 12:37:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:37:23,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 12:37:23,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 12:37:23,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 12:37:23,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:37:23,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:37:23,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:37:23,264 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 12:37:23,396 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:37:23,398 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:37:24,394 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:37:25,447 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:37:25,447 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2022-12-12 12:37:25,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:37:25 BoogieIcfgContainer [2022-12-12 12:37:25,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:37:25,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:37:25,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:37:25,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:37:25,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:37:22" (1/3) ... [2022-12-12 12:37:25,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa98038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:37:25, skipping insertion in model container [2022-12-12 12:37:25,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:37:22" (2/3) ... [2022-12-12 12:37:25,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa98038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:37:25, skipping insertion in model container [2022-12-12 12:37:25,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:37:25" (3/3) ... [2022-12-12 12:37:25,456 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2022-12-12 12:37:25,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:37:25,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 12:37:25,469 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:37:25,672 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 12:37:25,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 385 places, 431 transitions, 878 flow [2022-12-12 12:37:25,796 INFO L130 PetriNetUnfolder]: 53/429 cut-off events. [2022-12-12 12:37:25,796 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 12:37:25,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 429 events. 53/429 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 502 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 359. Up to 7 conditions per place. [2022-12-12 12:37:25,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 431 transitions, 878 flow [2022-12-12 12:37:25,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 421 transitions, 854 flow [2022-12-12 12:37:25,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:37:25,816 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;@7d0bd871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:37:25,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 12:37:25,917 INFO L130 PetriNetUnfolder]: 53/420 cut-off events. [2022-12-12 12:37:25,917 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 12:37:25,917 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:25,918 INFO L214 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, 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, 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, 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] [2022-12-12 12:37:25,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash 485965238, now seen corresponding path program 1 times [2022-12-12 12:37:25,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:25,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737292346] [2022-12-12 12:37:25,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:25,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:26,384 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 12:37:26,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:26,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737292346] [2022-12-12 12:37:26,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737292346] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:37:26,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:37:26,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 12:37:26,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235404150] [2022-12-12 12:37:26,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:37:26,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 12:37:26,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:26,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 12:37:26,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 12:37:26,412 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 431 [2022-12-12 12:37:26,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 421 transitions, 854 flow. Second operand has 5 states, 5 states have (on average 293.4) internal successors, (1467), 5 states have internal predecessors, (1467), 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 12:37:26,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:26,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 431 [2022-12-12 12:37:26,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:26,789 INFO L130 PetriNetUnfolder]: 103/577 cut-off events. [2022-12-12 12:37:26,789 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-12 12:37:26,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 577 events. 103/577 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1175 event pairs, 15 based on Foata normal form. 37/537 useless extension candidates. Maximal degree in co-relation 481. Up to 168 conditions per place. [2022-12-12 12:37:26,793 INFO L137 encePairwiseOnDemand]: 380/431 looper letters, 120 selfloop transitions, 18 changer transitions 17/408 dead transitions. [2022-12-12 12:37:26,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 408 transitions, 1104 flow [2022-12-12 12:37:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 12:37:26,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 12:37:26,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1849 transitions. [2022-12-12 12:37:26,806 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7150038669760247 [2022-12-12 12:37:26,809 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 5 predicate places. [2022-12-12 12:37:26,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 408 transitions, 1104 flow [2022-12-12 12:37:26,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 408 transitions, 960 flow, removed 63 selfloop flow, removed 6 redundant places. [2022-12-12 12:37:26,816 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 408 transitions, 960 flow [2022-12-12 12:37:26,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 293.4) internal successors, (1467), 5 states have internal predecessors, (1467), 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 12:37:26,817 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:26,817 INFO L214 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, 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, 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, 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] [2022-12-12 12:37:26,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:37:26,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:26,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:26,818 INFO L85 PathProgramCache]: Analyzing trace with hash 247281337, now seen corresponding path program 1 times [2022-12-12 12:37:26,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:26,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236173778] [2022-12-12 12:37:26,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:26,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 12:37:27,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:27,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236173778] [2022-12-12 12:37:27,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236173778] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:27,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653974482] [2022-12-12 12:37:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:27,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:27,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:27,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:27,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 12:37:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:27,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-12 12:37:27,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-12 12:37:27,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 12:37:27,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653974482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:37:27,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 12:37:27,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-12-12 12:37:27,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652239640] [2022-12-12 12:37:27,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:37:27,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 12:37:27,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:27,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 12:37:27,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:37:27,675 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 431 [2022-12-12 12:37:27,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 408 transitions, 960 flow. Second operand has 5 states, 5 states have (on average 296.2) internal successors, (1481), 5 states have internal predecessors, (1481), 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 12:37:27,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:27,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 431 [2022-12-12 12:37:27,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:27,989 INFO L130 PetriNetUnfolder]: 103/601 cut-off events. [2022-12-12 12:37:27,989 INFO L131 PetriNetUnfolder]: For 110/192 co-relation queries the response was YES. [2022-12-12 12:37:27,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 601 events. 103/601 cut-off events. For 110/192 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1169 event pairs, 15 based on Foata normal form. 0/524 useless extension candidates. Maximal degree in co-relation 289. Up to 162 conditions per place. [2022-12-12 12:37:27,992 INFO L137 encePairwiseOnDemand]: 409/431 looper letters, 136 selfloop transitions, 18 changer transitions 17/424 dead transitions. [2022-12-12 12:37:27,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 424 transitions, 1300 flow [2022-12-12 12:37:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 12:37:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 12:37:27,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1816 transitions. [2022-12-12 12:37:27,995 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7022428460943542 [2022-12-12 12:37:27,996 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 4 predicate places. [2022-12-12 12:37:27,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 424 transitions, 1300 flow [2022-12-12 12:37:28,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 424 transitions, 1077 flow, removed 104 selfloop flow, removed 4 redundant places. [2022-12-12 12:37:28,001 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 424 transitions, 1077 flow [2022-12-12 12:37:28,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.2) internal successors, (1481), 5 states have internal predecessors, (1481), 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 12:37:28,001 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:28,002 INFO L214 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:37:28,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 12:37:28,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:28,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:28,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:28,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1172193219, now seen corresponding path program 1 times [2022-12-12 12:37:28,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:28,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987557200] [2022-12-12 12:37:28,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:28,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-12 12:37:28,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:28,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987557200] [2022-12-12 12:37:28,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987557200] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:28,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728597956] [2022-12-12 12:37:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:28,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:28,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:28,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:28,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 12:37:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:28,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 12:37:28,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-12 12:37:28,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 12:37:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-12 12:37:29,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728597956] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 12:37:29,065 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 12:37:29,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-12-12 12:37:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074459031] [2022-12-12 12:37:29,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 12:37:29,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-12 12:37:29,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:29,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-12 12:37:29,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-12-12 12:37:29,073 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 431 [2022-12-12 12:37:29,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 424 transitions, 1077 flow. Second operand has 17 states, 17 states have (on average 280.52941176470586) internal successors, (4769), 17 states have internal predecessors, (4769), 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 12:37:29,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:29,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 431 [2022-12-12 12:37:29,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:29,909 INFO L130 PetriNetUnfolder]: 103/673 cut-off events. [2022-12-12 12:37:29,909 INFO L131 PetriNetUnfolder]: For 144/226 co-relation queries the response was YES. [2022-12-12 12:37:29,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1239 conditions, 673 events. 103/673 cut-off events. For 144/226 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1092 event pairs, 15 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 289. Up to 167 conditions per place. [2022-12-12 12:37:29,914 INFO L137 encePairwiseOnDemand]: 365/431 looper letters, 128 selfloop transitions, 90 changer transitions 17/480 dead transitions. [2022-12-12 12:37:29,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 480 transitions, 1705 flow [2022-12-12 12:37:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-12 12:37:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-12 12:37:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 6196 transitions. [2022-12-12 12:37:29,924 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6534486395275259 [2022-12-12 12:37:29,924 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 21 predicate places. [2022-12-12 12:37:29,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 480 transitions, 1705 flow [2022-12-12 12:37:29,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 480 transitions, 1317 flow, removed 160 selfloop flow, removed 9 redundant places. [2022-12-12 12:37:29,929 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 480 transitions, 1317 flow [2022-12-12 12:37:29,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 280.52941176470586) internal successors, (4769), 17 states have internal predecessors, (4769), 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 12:37:29,932 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:29,933 INFO L214 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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] [2022-12-12 12:37:29,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-12 12:37:30,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-12 12:37:30,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:30,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2014092971, now seen corresponding path program 2 times [2022-12-12 12:37:30,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:30,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819288249] [2022-12-12 12:37:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:30,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-12-12 12:37:30,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:30,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819288249] [2022-12-12 12:37:30,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819288249] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:30,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144663378] [2022-12-12 12:37:30,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 12:37:30,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:30,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:30,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:30,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 12:37:31,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-12 12:37:31,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 12:37:31,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-12 12:37:31,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:31,140 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 12:37:31,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2022-12-12 12:37:31,238 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-12 12:37:31,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 12:37:31,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144663378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:37:31,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 12:37:31,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-12-12 12:37:31,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067656154] [2022-12-12 12:37:31,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:37:31,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:37:31,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:31,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:37:31,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-12-12 12:37:31,241 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 431 [2022-12-12 12:37:31,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 480 transitions, 1317 flow. Second operand has 6 states, 6 states have (on average 285.6666666666667) internal successors, (1714), 6 states have internal predecessors, (1714), 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 12:37:31,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:31,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 431 [2022-12-12 12:37:31,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:31,749 INFO L130 PetriNetUnfolder]: 230/947 cut-off events. [2022-12-12 12:37:31,749 INFO L131 PetriNetUnfolder]: For 196/268 co-relation queries the response was YES. [2022-12-12 12:37:31,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 947 events. 230/947 cut-off events. For 196/268 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2815 event pairs, 45 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 200. Up to 336 conditions per place. [2022-12-12 12:37:31,753 INFO L137 encePairwiseOnDemand]: 407/431 looper letters, 145 selfloop transitions, 2 changer transitions 28/508 dead transitions. [2022-12-12 12:37:31,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 508 transitions, 1757 flow [2022-12-12 12:37:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 12:37:31,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 12:37:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2320 transitions. [2022-12-12 12:37:31,757 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6728538283062645 [2022-12-12 12:37:31,758 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 19 predicate places. [2022-12-12 12:37:31,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 508 transitions, 1757 flow [2022-12-12 12:37:31,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 508 transitions, 1531 flow, removed 113 selfloop flow, removed 0 redundant places. [2022-12-12 12:37:31,761 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 508 transitions, 1531 flow [2022-12-12 12:37:31,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 285.6666666666667) internal successors, (1714), 6 states have internal predecessors, (1714), 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 12:37:31,762 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:31,763 INFO L214 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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] [2022-12-12 12:37:31,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-12 12:37:31,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:31,970 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:31,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:31,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1345362595, now seen corresponding path program 3 times [2022-12-12 12:37:31,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:31,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476118053] [2022-12-12 12:37:31,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:31,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:32,347 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-12-12 12:37:32,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:32,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476118053] [2022-12-12 12:37:32,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476118053] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:32,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034126170] [2022-12-12 12:37:32,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 12:37:32,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:32,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:32,349 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:32,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 12:37:32,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-12 12:37:32,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 12:37:32,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-12 12:37:32,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:33,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 12:37:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 12:37:33,842 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-12 12:37:33,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 41 [2022-12-12 12:37:33,909 INFO L321 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2022-12-12 12:37:33,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 24 [2022-12-12 12:37:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-12 12:37:33,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 12:37:33,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034126170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:37:33,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 12:37:33,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [11] total 27 [2022-12-12 12:37:33,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751493278] [2022-12-12 12:37:33,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:37:34,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-12 12:37:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-12 12:37:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2022-12-12 12:37:34,005 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 431 [2022-12-12 12:37:34,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 508 transitions, 1531 flow. Second operand has 18 states, 18 states have (on average 214.66666666666666) internal successors, (3864), 18 states have internal predecessors, (3864), 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 12:37:34,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:34,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 431 [2022-12-12 12:37:34,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:35,429 INFO L130 PetriNetUnfolder]: 244/1047 cut-off events. [2022-12-12 12:37:35,430 INFO L131 PetriNetUnfolder]: For 525/892 co-relation queries the response was YES. [2022-12-12 12:37:35,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2367 conditions, 1047 events. 244/1047 cut-off events. For 525/892 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3754 event pairs, 45 based on Foata normal form. 18/958 useless extension candidates. Maximal degree in co-relation 726. Up to 300 conditions per place. [2022-12-12 12:37:35,435 INFO L137 encePairwiseOnDemand]: 350/431 looper letters, 167 selfloop transitions, 54 changer transitions 48/540 dead transitions. [2022-12-12 12:37:35,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 540 transitions, 2220 flow [2022-12-12 12:37:35,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-12 12:37:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-12 12:37:35,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 6404 transitions. [2022-12-12 12:37:35,448 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49528228924980666 [2022-12-12 12:37:35,449 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 48 predicate places. [2022-12-12 12:37:35,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 540 transitions, 2220 flow [2022-12-12 12:37:35,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 540 transitions, 1867 flow, removed 122 selfloop flow, removed 19 redundant places. [2022-12-12 12:37:35,454 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 540 transitions, 1867 flow [2022-12-12 12:37:35,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 214.66666666666666) internal successors, (3864), 18 states have internal predecessors, (3864), 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 12:37:35,456 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:35,457 INFO L214 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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] [2022-12-12 12:37:35,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-12 12:37:35,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:35,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:35,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:35,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1942357006, now seen corresponding path program 1 times [2022-12-12 12:37:35,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:35,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979128235] [2022-12-12 12:37:35,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:35,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-12-12 12:37:36,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:36,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979128235] [2022-12-12 12:37:36,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979128235] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:36,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963684633] [2022-12-12 12:37:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:36,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:36,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:36,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:36,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-12 12:37:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:36,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-12 12:37:36,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:36,610 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-12-12 12:37:36,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 12:37:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-12-12 12:37:36,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963684633] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 12:37:36,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 12:37:36,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-12-12 12:37:36,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689003333] [2022-12-12 12:37:36,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 12:37:36,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-12 12:37:36,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:36,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-12 12:37:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-12-12 12:37:36,711 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 431 [2022-12-12 12:37:36,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 540 transitions, 1867 flow. Second operand has 22 states, 22 states have (on average 277.8636363636364) internal successors, (6113), 22 states have internal predecessors, (6113), 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 12:37:36,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:36,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 431 [2022-12-12 12:37:36,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:37,711 INFO L130 PetriNetUnfolder]: 244/1131 cut-off events. [2022-12-12 12:37:37,712 INFO L131 PetriNetUnfolder]: For 1086/1514 co-relation queries the response was YES. [2022-12-12 12:37:37,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2863 conditions, 1131 events. 244/1131 cut-off events. For 1086/1514 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3735 event pairs, 45 based on Foata normal form. 0/1024 useless extension candidates. Maximal degree in co-relation 970. Up to 316 conditions per place. [2022-12-12 12:37:37,718 INFO L137 encePairwiseOnDemand]: 365/431 looper letters, 169 selfloop transitions, 126 changer transitions 48/600 dead transitions. [2022-12-12 12:37:37,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 600 transitions, 2717 flow [2022-12-12 12:37:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-12 12:37:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-12 12:37:37,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 8691 transitions. [2022-12-12 12:37:37,731 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6504752638275578 [2022-12-12 12:37:37,733 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 59 predicate places. [2022-12-12 12:37:37,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 600 transitions, 2717 flow [2022-12-12 12:37:37,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 600 transitions, 2292 flow, removed 154 selfloop flow, removed 17 redundant places. [2022-12-12 12:37:37,742 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 600 transitions, 2292 flow [2022-12-12 12:37:37,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 277.8636363636364) internal successors, (6113), 22 states have internal predecessors, (6113), 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 12:37:37,745 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:37,746 INFO L214 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2022-12-12 12:37:37,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-12 12:37:37,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:37,953 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:37,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1509945352, now seen corresponding path program 2 times [2022-12-12 12:37:37,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:37,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230524416] [2022-12-12 12:37:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-12-12 12:37:38,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:38,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230524416] [2022-12-12 12:37:38,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230524416] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:38,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553859153] [2022-12-12 12:37:38,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 12:37:38,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:38,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:38,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:38,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-12 12:37:38,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-12 12:37:38,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 12:37:38,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-12 12:37:38,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:39,516 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-12 12:37:39,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 9 [2022-12-12 12:37:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-12-12 12:37:39,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 12:37:39,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553859153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:37:39,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 12:37:39,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2022-12-12 12:37:39,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110548060] [2022-12-12 12:37:39,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:37:39,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 12:37:39,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:39,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 12:37:39,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-12-12 12:37:39,565 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 431 [2022-12-12 12:37:39,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 600 transitions, 2292 flow. Second operand has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 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 12:37:39,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:39,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 431 [2022-12-12 12:37:39,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:40,539 INFO L130 PetriNetUnfolder]: 596/2147 cut-off events. [2022-12-12 12:37:40,539 INFO L131 PetriNetUnfolder]: For 2478/4727 co-relation queries the response was YES. [2022-12-12 12:37:40,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6007 conditions, 2147 events. 596/2147 cut-off events. For 2478/4727 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12547 event pairs, 18 based on Foata normal form. 34/1962 useless extension candidates. Maximal degree in co-relation 5076. Up to 860 conditions per place. [2022-12-12 12:37:40,552 INFO L137 encePairwiseOnDemand]: 387/431 looper letters, 220 selfloop transitions, 69 changer transitions 90/759 dead transitions. [2022-12-12 12:37:40,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 759 transitions, 4231 flow [2022-12-12 12:37:40,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 12:37:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 12:37:40,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4837 transitions. [2022-12-12 12:37:40,558 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6601610481779718 [2022-12-12 12:37:40,558 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 58 predicate places. [2022-12-12 12:37:40,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 759 transitions, 4231 flow [2022-12-12 12:37:40,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 759 transitions, 3447 flow, removed 392 selfloop flow, removed 0 redundant places. [2022-12-12 12:37:40,568 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 759 transitions, 3447 flow [2022-12-12 12:37:40,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 281.0) internal successors, (2248), 8 states have internal predecessors, (2248), 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 12:37:40,569 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:40,570 INFO L214 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2022-12-12 12:37:40,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-12 12:37:40,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:40,777 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:40,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:40,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1551188578, now seen corresponding path program 3 times [2022-12-12 12:37:40,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:40,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212145066] [2022-12-12 12:37:40,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:40,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-12-12 12:37:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:41,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212145066] [2022-12-12 12:37:41,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212145066] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:41,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496515710] [2022-12-12 12:37:41,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 12:37:41,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:41,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:41,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:41,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-12 12:37:41,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-12 12:37:41,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 12:37:41,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-12 12:37:41,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:42,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 12:37:42,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 12:37:42,912 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-12 12:37:42,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 27 [2022-12-12 12:37:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-12-12 12:37:42,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 12:37:42,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496515710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:37:42,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 12:37:42,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 28 [2022-12-12 12:37:42,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713015247] [2022-12-12 12:37:42,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:37:42,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-12 12:37:42,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:42,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-12 12:37:42,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2022-12-12 12:37:42,956 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 431 [2022-12-12 12:37:42,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 759 transitions, 3447 flow. Second operand has 15 states, 15 states have (on average 298.8) internal successors, (4482), 15 states have internal predecessors, (4482), 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 12:37:42,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:42,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 431 [2022-12-12 12:37:42,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:44,240 INFO L130 PetriNetUnfolder]: 575/2061 cut-off events. [2022-12-12 12:37:44,241 INFO L131 PetriNetUnfolder]: For 2441/4532 co-relation queries the response was YES. [2022-12-12 12:37:44,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5496 conditions, 2061 events. 575/2061 cut-off events. For 2441/4532 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11680 event pairs, 22 based on Foata normal form. 48/1902 useless extension candidates. Maximal degree in co-relation 4569. Up to 775 conditions per place. [2022-12-12 12:37:44,250 INFO L137 encePairwiseOnDemand]: 365/431 looper letters, 190 selfloop transitions, 70 changer transitions 89/754 dead transitions. [2022-12-12 12:37:44,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 754 transitions, 3996 flow [2022-12-12 12:37:44,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-12 12:37:44,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-12 12:37:44,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 6571 transitions. [2022-12-12 12:37:44,255 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6929972579624551 [2022-12-12 12:37:44,256 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 78 predicate places. [2022-12-12 12:37:44,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 754 transitions, 3996 flow [2022-12-12 12:37:44,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 754 transitions, 3493 flow, removed 205 selfloop flow, removed 19 redundant places. [2022-12-12 12:37:44,264 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 754 transitions, 3493 flow [2022-12-12 12:37:44,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 298.8) internal successors, (4482), 15 states have internal predecessors, (4482), 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 12:37:44,266 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:44,266 INFO L214 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2022-12-12 12:37:44,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-12 12:37:44,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:44,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:44,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:44,476 INFO L85 PathProgramCache]: Analyzing trace with hash 975161372, now seen corresponding path program 4 times [2022-12-12 12:37:44,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:44,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595205366] [2022-12-12 12:37:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-12-12 12:37:45,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:45,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595205366] [2022-12-12 12:37:45,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595205366] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:45,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650967266] [2022-12-12 12:37:45,019 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-12 12:37:45,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:45,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:45,035 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:45,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-12 12:37:47,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-12 12:37:47,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 12:37:47,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-12 12:37:47,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:37:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-12-12 12:37:47,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 12:37:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-12-12 12:37:48,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650967266] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 12:37:48,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 12:37:48,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2022-12-12 12:37:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938373888] [2022-12-12 12:37:48,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 12:37:48,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-12 12:37:48,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:37:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-12 12:37:48,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1137, Unknown=0, NotChecked=0, Total=1482 [2022-12-12 12:37:48,029 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 431 [2022-12-12 12:37:48,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 754 transitions, 3493 flow. Second operand has 39 states, 39 states have (on average 275.8974358974359) internal successors, (10760), 39 states have internal predecessors, (10760), 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 12:37:48,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:37:48,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 431 [2022-12-12 12:37:48,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:37:49,555 INFO L130 PetriNetUnfolder]: 575/2149 cut-off events. [2022-12-12 12:37:49,555 INFO L131 PetriNetUnfolder]: For 3038/5305 co-relation queries the response was YES. [2022-12-12 12:37:49,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5892 conditions, 2149 events. 575/2149 cut-off events. For 3038/5305 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11769 event pairs, 22 based on Foata normal form. 19/1963 useless extension candidates. Maximal degree in co-relation 4559. Up to 709 conditions per place. [2022-12-12 12:37:49,565 INFO L137 encePairwiseOnDemand]: 403/431 looper letters, 314 selfloop transitions, 128 changer transitions 89/814 dead transitions. [2022-12-12 12:37:49,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 814 transitions, 4759 flow [2022-12-12 12:37:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 12:37:49,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 12:37:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 10000 transitions. [2022-12-12 12:37:49,573 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6444960041247745 [2022-12-12 12:37:49,575 INFO L295 CegarLoopForPetriNet]: 375 programPoint places, 94 predicate places. [2022-12-12 12:37:49,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 814 transitions, 4759 flow [2022-12-12 12:37:49,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 814 transitions, 4072 flow, removed 283 selfloop flow, removed 3 redundant places. [2022-12-12 12:37:49,585 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 814 transitions, 4072 flow [2022-12-12 12:37:49,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 275.8974358974359) internal successors, (10760), 39 states have internal predecessors, (10760), 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 12:37:49,589 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:37:49,590 INFO L214 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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] [2022-12-12 12:37:49,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-12 12:37:49,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-12 12:37:49,820 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:37:49,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:37:49,820 INFO L85 PathProgramCache]: Analyzing trace with hash 116362588, now seen corresponding path program 5 times [2022-12-12 12:37:49,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:37:49,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751892177] [2022-12-12 12:37:49,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:37:49,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:37:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:37:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2022-12-12 12:37:50,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:37:50,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751892177] [2022-12-12 12:37:50,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751892177] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:37:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097203095] [2022-12-12 12:37:50,822 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-12 12:37:50,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:37:50,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:37:50,824 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 12:37:50,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process Received shutdown request... [2022-12-12 12:51:57,952 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 12:51:57,963 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 12:51:58,973 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 [2022-12-12 12:51:59,153 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forcibly destroying the process [2022-12-12 12:51:59,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-12 12:51:59,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-12 12:51:59,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-12-12 12:51:59,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916341623] [2022-12-12 12:51:59,192 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-12 12:51:59,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-12 12:51:59,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:51:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-12 12:51:59,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-12-12 12:51:59,205 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 431 [2022-12-12 12:51:59,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 814 transitions, 4072 flow. Second operand has 27 states, 27 states have (on average 276.962962962963) internal successors, (7478), 27 states have internal predecessors, (7478), 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 12:51:59,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:51:59,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 431 [2022-12-12 12:51:59,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:51:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 12:51:59,224 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 12:51:59,226 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forcibly destroying the process [2022-12-12 12:51:59,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-12 12:51:59,227 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 271/431 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 5 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). [2022-12-12 12:51:59,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 12:51:59,228 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 12:51:59,228 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1] [2022-12-12 12:51:59,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 137 [2022-12-12 12:51:59,232 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:51:59,232 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:51:59,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:51:59 BasicIcfg [2022-12-12 12:51:59,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:51:59,237 INFO L158 Benchmark]: Toolchain (without parser) took 876575.48ms. Allocated memory was 202.4MB in the beginning and 1.1GB in the end (delta: 941.6MB). Free memory was 178.3MB in the beginning and 921.1MB in the end (delta: -742.8MB). Peak memory consumption was 199.4MB. Max. memory is 8.0GB. [2022-12-12 12:51:59,237 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 179.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:51:59,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.76ms. Allocated memory is still 202.4MB. Free memory was 178.3MB in the beginning and 152.1MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-12 12:51:59,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.52ms. Allocated memory is still 202.4MB. Free memory was 152.1MB in the beginning and 144.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-12-12 12:51:59,239 INFO L158 Benchmark]: Boogie Preprocessor took 92.21ms. Allocated memory is still 202.4MB. Free memory was 144.3MB in the beginning and 136.9MB in the end (delta: 7.4MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-12-12 12:51:59,239 INFO L158 Benchmark]: RCFGBuilder took 2265.92ms. Allocated memory was 202.4MB in the beginning and 401.6MB in the end (delta: 199.2MB). Free memory was 136.9MB in the beginning and 327.5MB in the end (delta: -190.6MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. [2022-12-12 12:51:59,240 INFO L158 Benchmark]: TraceAbstraction took 873784.83ms. Allocated memory was 401.6MB in the beginning and 1.1GB in the end (delta: 742.4MB). Free memory was 326.4MB in the beginning and 921.1MB in the end (delta: -594.7MB). Peak memory consumption was 149.3MB. Max. memory is 8.0GB. [2022-12-12 12:51:59,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 179.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 336.76ms. Allocated memory is still 202.4MB. Free memory was 178.3MB in the beginning and 152.1MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 90.52ms. Allocated memory is still 202.4MB. Free memory was 152.1MB in the beginning and 144.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 92.21ms. Allocated memory is still 202.4MB. Free memory was 144.3MB in the beginning and 136.9MB in the end (delta: 7.4MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2265.92ms. Allocated memory was 202.4MB in the beginning and 401.6MB in the end (delta: 199.2MB). Free memory was 136.9MB in the beginning and 327.5MB in the end (delta: -190.6MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. * TraceAbstraction took 873784.83ms. Allocated memory was 401.6MB in the beginning and 1.1GB in the end (delta: 742.4MB). Free memory was 326.4MB in the beginning and 921.1MB in the end (delta: -594.7MB). Peak memory consumption was 149.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 235]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 271/431 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 5 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 229]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 271/431 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 5 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 230]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 271/431 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 5 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 457 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 873.5s, OverallIterations: 10, TraceHistogramMax: 11, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3739 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3739 mSDsluCounter, 3273 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2630 mSDsCounter, 538 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5330 IncrementalHoareTripleChecker+Invalid, 5868 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 538 mSolverCounterUnsat, 643 mSDtfsCounter, 5330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4755 GetRequests, 4424 SyntacticMatches, 5 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3860 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4072occurred in iteration=9, InterpolantAutomatonStates: 178, 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, 9 MinimizatonAttempts, 3733 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 7407 NumberOfCodeBlocks, 6567 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 8593 ConstructedInterpolants, 0 QuantifiedInterpolants, 20872 SizeOfPredicates, 107 NumberOfNonLiveVariables, 6008 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 4995/5890 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 could not prove your program: Timeout Completed graceful shutdown