/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 06:42:57,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 06:42:57,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 06:42:57,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 06:42:57,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 06:42:57,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 06:42:57,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 06:42:57,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 06:42:57,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 06:42:57,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 06:42:57,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 06:42:57,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 06:42:57,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 06:42:57,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 06:42:57,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 06:42:57,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 06:42:57,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 06:42:57,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 06:42:57,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 06:42:57,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 06:42:57,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 06:42:57,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 06:42:57,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 06:42:57,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 06:42:57,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 06:42:57,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 06:42:57,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 06:42:57,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 06:42:57,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 06:42:57,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 06:42:57,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 06:42:57,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 06:42:57,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 06:42:57,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 06:42:57,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 06:42:57,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 06:42:57,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 06:42:57,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 06:42:57,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 06:42:57,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 06:42:57,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 06:42:57,131 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 06:42:57,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 06:42:57,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 06:42:57,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 06:42:57,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 06:42:57,159 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 06:42:57,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 06:42:57,159 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 06:42:57,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 06:42:57,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 06:42:57,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 06:42:57,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 06:42:57,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 06:42:57,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 06:42:57,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 06:42:57,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:42:57,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 06:42:57,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 06:42:57,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 06:42:57,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 06:42:57,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 06:42:57,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 06:42:57,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 06:42:57,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 06:42:57,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 06:42:57,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 06:42:57,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 06:42:57,411 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 06:42:57,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2022-12-06 06:42:58,386 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 06:42:58,626 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 06:42:58,627 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2022-12-06 06:42:58,639 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab075b14/bced9af1e5c14c959a11fc8e0d0e5405/FLAG4908e1d16 [2022-12-06 06:42:58,658 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab075b14/bced9af1e5c14c959a11fc8e0d0e5405 [2022-12-06 06:42:58,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 06:42:58,661 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 06:42:58,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 06:42:58,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 06:42:58,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 06:42:58,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:42:58" (1/1) ... [2022-12-06 06:42:58,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db9b2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:58, skipping insertion in model container [2022-12-06 06:42:58,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:42:58" (1/1) ... [2022-12-06 06:42:58,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 06:42:58,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 06:42:58,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] [2022-12-06 06:42:58,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:42:58,953 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 06:42:58,961 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] [2022-12-06 06:42:58,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:42:58,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:42:58,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:42:59,023 INFO L208 MainTranslator]: Completed translation [2022-12-06 06:42:59,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59 WrapperNode [2022-12-06 06:42:59,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 06:42:59,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 06:42:59,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 06:42:59,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 06:42:59,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,070 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-06 06:42:59,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 06:42:59,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 06:42:59,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 06:42:59,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 06:42:59,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 06:42:59,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 06:42:59,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 06:42:59,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 06:42:59,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (1/1) ... [2022-12-06 06:42:59,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:42:59,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 06:42:59,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 06:42:59,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 06:42:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 06:42:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 06:42:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 06:42:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 06:42:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 06:42:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 06:42:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 06:42:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 06:42:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 06:42:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 06:42:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 06:42:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 06:42:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 06:42:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 06:42:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 06:42:59,150 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 06:42:59,316 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 06:42:59,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 06:42:59,471 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 06:42:59,481 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 06:42:59,481 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 06:42:59,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:42:59 BoogieIcfgContainer [2022-12-06 06:42:59,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 06:42:59,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 06:42:59,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 06:42:59,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 06:42:59,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:42:58" (1/3) ... [2022-12-06 06:42:59,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545cddbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:42:59, skipping insertion in model container [2022-12-06 06:42:59,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:42:59" (2/3) ... [2022-12-06 06:42:59,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545cddbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:42:59, skipping insertion in model container [2022-12-06 06:42:59,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:42:59" (3/3) ... [2022-12-06 06:42:59,488 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2022-12-06 06:42:59,502 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 06:42:59,503 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 06:42:59,503 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 06:42:59,561 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 06:42:59,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 06:42:59,634 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-06 06:42:59,634 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:42:59,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 06:42:59,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 06:42:59,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-06 06:42:59,641 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:42:59,661 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-06 06:42:59,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2022-12-06 06:42:59,685 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-06 06:42:59,685 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:42:59,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-06 06:42:59,687 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-06 06:42:59,687 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-06 06:43:01,605 INFO L203 LiptonReduction]: Total number of compositions: 53 [2022-12-06 06:43:01,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 06:43:01,621 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a89d2e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 06:43:01,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 06:43:01,624 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-06 06:43:01,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:01,624 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:01,624 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:01,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:01,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:01,628 INFO L85 PathProgramCache]: Analyzing trace with hash 228144142, now seen corresponding path program 1 times [2022-12-06 06:43:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:01,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669785730] [2022-12-06 06:43:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:01,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:01,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669785730] [2022-12-06 06:43:01,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669785730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:01,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:01,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 06:43:01,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649269450] [2022-12-06 06:43:01,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:01,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 06:43:01,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 06:43:01,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 06:43:01,852 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-06 06:43:01,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:01,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:01,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-06 06:43:01,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:01,940 INFO L130 PetriNetUnfolder]: 164/286 cut-off events. [2022-12-06 06:43:01,940 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-06 06:43:01,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 286 events. 164/286 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1164 event pairs, 164 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 576. Up to 271 conditions per place. [2022-12-06 06:43:01,944 INFO L137 encePairwiseOnDemand]: 17/18 looper letters, 14 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-06 06:43:01,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 71 flow [2022-12-06 06:43:01,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 06:43:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 06:43:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 21 transitions. [2022-12-06 06:43:01,953 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 06:43:01,954 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 21 transitions. [2022-12-06 06:43:01,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 71 flow [2022-12-06 06:43:01,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 06:43:01,957 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2022-12-06 06:43:01,958 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-06 06:43:01,961 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2022-12-06 06:43:01,961 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:01,961 INFO L89 Accepts]: Start accepts. Operand has 25 places, 17 transitions, 40 flow [2022-12-06 06:43:01,963 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:01,963 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:01,963 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 40 flow [2022-12-06 06:43:01,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 40 flow [2022-12-06 06:43:01,968 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-06 06:43:01,968 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:01,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 06:43:01,968 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 17 transitions, 40 flow [2022-12-06 06:43:01,968 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-06 06:43:01,991 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:01,993 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32 [2022-12-06 06:43:01,993 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2022-12-06 06:43:01,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:01,993 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:01,994 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:01,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 06:43:01,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:01,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:01,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1517465909, now seen corresponding path program 1 times [2022-12-06 06:43:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:01,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265315318] [2022-12-06 06:43:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:01,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:02,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:02,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265315318] [2022-12-06 06:43:02,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265315318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:02,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:02,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 06:43:02,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037937885] [2022-12-06 06:43:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:02,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:43:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:43:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:43:02,231 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 06:43:02,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:02,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:02,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 06:43:02,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:02,319 INFO L130 PetriNetUnfolder]: 424/734 cut-off events. [2022-12-06 06:43:02,319 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:02,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1484 conditions, 734 events. 424/734 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3655 event pairs, 160 based on Foata normal form. 43/777 useless extension candidates. Maximal degree in co-relation 1476. Up to 392 conditions per place. [2022-12-06 06:43:02,323 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 21 selfloop transitions, 6 changer transitions 0/28 dead transitions. [2022-12-06 06:43:02,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 118 flow [2022-12-06 06:43:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:43:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:43:02,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-06 06:43:02,324 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2022-12-06 06:43:02,324 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 31 transitions. [2022-12-06 06:43:02,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 118 flow [2022-12-06 06:43:02,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 28 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 06:43:02,325 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 86 flow [2022-12-06 06:43:02,326 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2022-12-06 06:43:02,326 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2022-12-06 06:43:02,326 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:02,326 INFO L89 Accepts]: Start accepts. Operand has 28 places, 22 transitions, 86 flow [2022-12-06 06:43:02,327 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:02,327 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:02,327 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 86 flow [2022-12-06 06:43:02,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 86 flow [2022-12-06 06:43:02,335 INFO L130 PetriNetUnfolder]: 46/138 cut-off events. [2022-12-06 06:43:02,335 INFO L131 PetriNetUnfolder]: For 29/33 co-relation queries the response was YES. [2022-12-06 06:43:02,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 138 events. 46/138 cut-off events. For 29/33 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 626 event pairs, 16 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 284. Up to 53 conditions per place. [2022-12-06 06:43:02,336 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 86 flow [2022-12-06 06:43:02,336 INFO L188 LiptonReduction]: Number of co-enabled transitions 144 [2022-12-06 06:43:02,338 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:02,338 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 06:43:02,338 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 86 flow [2022-12-06 06:43:02,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:02,339 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:02,339 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:02,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 06:43:02,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:02,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash 203196583, now seen corresponding path program 1 times [2022-12-06 06:43:02,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:02,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876329598] [2022-12-06 06:43:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:02,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:02,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:02,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876329598] [2022-12-06 06:43:02,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876329598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:02,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:02,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:43:02,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499980429] [2022-12-06 06:43:02,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:02,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:43:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:43:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:43:02,455 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 06:43:02,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:02,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:02,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 06:43:02,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:02,535 INFO L130 PetriNetUnfolder]: 399/687 cut-off events. [2022-12-06 06:43:02,535 INFO L131 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2022-12-06 06:43:02,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1876 conditions, 687 events. 399/687 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3273 event pairs, 93 based on Foata normal form. 8/691 useless extension candidates. Maximal degree in co-relation 1864. Up to 279 conditions per place. [2022-12-06 06:43:02,538 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 26 selfloop transitions, 7 changer transitions 0/34 dead transitions. [2022-12-06 06:43:02,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 192 flow [2022-12-06 06:43:02,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 06:43:02,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 06:43:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-06 06:43:02,539 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5147058823529411 [2022-12-06 06:43:02,540 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 86 flow. Second operand 4 states and 35 transitions. [2022-12-06 06:43:02,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 192 flow [2022-12-06 06:43:02,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 06:43:02,542 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 122 flow [2022-12-06 06:43:02,542 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2022-12-06 06:43:02,542 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2022-12-06 06:43:02,542 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:02,542 INFO L89 Accepts]: Start accepts. Operand has 32 places, 25 transitions, 122 flow [2022-12-06 06:43:02,543 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:02,543 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:02,543 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 25 transitions, 122 flow [2022-12-06 06:43:02,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 25 transitions, 122 flow [2022-12-06 06:43:02,550 INFO L130 PetriNetUnfolder]: 40/118 cut-off events. [2022-12-06 06:43:02,550 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-12-06 06:43:02,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 118 events. 40/118 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 495 event pairs, 11 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 303. Up to 50 conditions per place. [2022-12-06 06:43:02,551 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 25 transitions, 122 flow [2022-12-06 06:43:02,551 INFO L188 LiptonReduction]: Number of co-enabled transitions 160 [2022-12-06 06:43:02,553 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:02,554 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 06:43:02,554 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 122 flow [2022-12-06 06:43:02,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:02,554 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:02,554 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:02,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 06:43:02,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:02,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:02,555 INFO L85 PathProgramCache]: Analyzing trace with hash 203196149, now seen corresponding path program 1 times [2022-12-06 06:43:02,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:02,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6164026] [2022-12-06 06:43:02,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:02,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:02,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:02,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6164026] [2022-12-06 06:43:02,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6164026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:02,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:02,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:43:02,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598247337] [2022-12-06 06:43:02,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:02,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:43:02,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:02,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:43:02,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:43:02,633 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 06:43:02,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 122 flow. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:02,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:02,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 06:43:02,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:02,732 INFO L130 PetriNetUnfolder]: 605/975 cut-off events. [2022-12-06 06:43:02,732 INFO L131 PetriNetUnfolder]: For 988/988 co-relation queries the response was YES. [2022-12-06 06:43:02,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 975 events. 605/975 cut-off events. For 988/988 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4229 event pairs, 100 based on Foata normal form. 16/991 useless extension candidates. Maximal degree in co-relation 2906. Up to 364 conditions per place. [2022-12-06 06:43:02,736 INFO L137 encePairwiseOnDemand]: 9/17 looper letters, 38 selfloop transitions, 17 changer transitions 4/59 dead transitions. [2022-12-06 06:43:02,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 59 transitions, 398 flow [2022-12-06 06:43:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:43:02,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:43:02,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2022-12-06 06:43:02,738 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5764705882352941 [2022-12-06 06:43:02,738 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 122 flow. Second operand 5 states and 49 transitions. [2022-12-06 06:43:02,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 59 transitions, 398 flow [2022-12-06 06:43:02,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 59 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 06:43:02,742 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 262 flow [2022-12-06 06:43:02,742 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=38, PETRI_TRANSITIONS=35} [2022-12-06 06:43:02,742 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2022-12-06 06:43:02,742 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:02,742 INFO L89 Accepts]: Start accepts. Operand has 38 places, 35 transitions, 262 flow [2022-12-06 06:43:02,743 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:02,743 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:02,743 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 35 transitions, 262 flow [2022-12-06 06:43:02,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 35 transitions, 262 flow [2022-12-06 06:43:02,752 INFO L130 PetriNetUnfolder]: 52/151 cut-off events. [2022-12-06 06:43:02,752 INFO L131 PetriNetUnfolder]: For 283/291 co-relation queries the response was YES. [2022-12-06 06:43:02,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 151 events. 52/151 cut-off events. For 283/291 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 692 event pairs, 10 based on Foata normal form. 2/149 useless extension candidates. Maximal degree in co-relation 515. Up to 69 conditions per place. [2022-12-06 06:43:02,754 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 35 transitions, 262 flow [2022-12-06 06:43:02,754 INFO L188 LiptonReduction]: Number of co-enabled transitions 192 [2022-12-06 06:43:02,756 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [190] L758-->L761: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] and [212] $Ultimate##0-->L758: Formula: (and (= v_P2Thread1of1ForFork0_~arg.offset_5 |v_P2Thread1of1ForFork0_#in~arg.offset_5|) (= v_P2Thread1of1ForFork0_~arg.base_5 |v_P2Thread1of1ForFork0_#in~arg.base_5|) (= v_~__unbuffered_p2_EAX~0_10 v_~x~0_7)) InVars {P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_5|, ~x~0=v_~x~0_7, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_5|} OutVars{P2Thread1of1ForFork0_~arg.base=v_P2Thread1of1ForFork0_~arg.base_5, P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_5|, P2Thread1of1ForFork0_~arg.offset=v_P2Thread1of1ForFork0_~arg.offset_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_10, ~x~0=v_~x~0_7, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_~arg.base, P2Thread1of1ForFork0_~arg.offset, ~__unbuffered_p2_EAX~0] [2022-12-06 06:43:02,776 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [257] $Ultimate##0-->L726: Formula: (and (= v_P0Thread1of1ForFork1_~arg.base_5 |v_P0Thread1of1ForFork1_#in~arg.base_5|) (= v_P0Thread1of1ForFork1_~arg.offset_5 |v_P0Thread1of1ForFork1_#in~arg.offset_5|) (= v_~y~0_61 1)) InVars {P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|} OutVars{P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_~arg.offset=v_P0Thread1of1ForFork1_~arg.offset_5, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|, ~y~0=v_~y~0_61, P0Thread1of1ForFork1_~arg.base=v_P0Thread1of1ForFork1_~arg.base_5} AuxVars[] AssignedVars[P0Thread1of1ForFork1_~arg.offset, ~y~0, P0Thread1of1ForFork1_~arg.base] and [226] $Ultimate##0-->L743: Formula: (and (= v_P1Thread1of1ForFork2_~arg.offset_5 |v_P1Thread1of1ForFork2_#in~arg.offset_5|) (= v_~y~0_31 2) (= v_P1Thread1of1ForFork2_~arg.base_5 |v_P1Thread1of1ForFork2_#in~arg.base_5|)) InVars {P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|} OutVars{P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_~arg.offset=v_P1Thread1of1ForFork2_~arg.offset_5, P1Thread1of1ForFork2_~arg.base=v_P1Thread1of1ForFork2_~arg.base_5, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_31} AuxVars[] AssignedVars[P1Thread1of1ForFork2_~arg.offset, P1Thread1of1ForFork2_~arg.base, ~y~0] [2022-12-06 06:43:02,795 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [190] L758-->L761: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] and [226] $Ultimate##0-->L743: Formula: (and (= v_P1Thread1of1ForFork2_~arg.offset_5 |v_P1Thread1of1ForFork2_#in~arg.offset_5|) (= v_~y~0_31 2) (= v_P1Thread1of1ForFork2_~arg.base_5 |v_P1Thread1of1ForFork2_#in~arg.base_5|)) InVars {P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|} OutVars{P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_~arg.offset=v_P1Thread1of1ForFork2_~arg.offset_5, P1Thread1of1ForFork2_~arg.base=v_P1Thread1of1ForFork2_~arg.base_5, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_31} AuxVars[] AssignedVars[P1Thread1of1ForFork2_~arg.offset, P1Thread1of1ForFork2_~arg.base, ~y~0] [2022-12-06 06:43:02,809 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [178] L726-->L731: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] and [226] $Ultimate##0-->L743: Formula: (and (= v_P1Thread1of1ForFork2_~arg.offset_5 |v_P1Thread1of1ForFork2_#in~arg.offset_5|) (= v_~y~0_31 2) (= v_P1Thread1of1ForFork2_~arg.base_5 |v_P1Thread1of1ForFork2_#in~arg.base_5|)) InVars {P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|} OutVars{P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_~arg.offset=v_P1Thread1of1ForFork2_~arg.offset_5, P1Thread1of1ForFork2_~arg.base=v_P1Thread1of1ForFork2_~arg.base_5, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_31} AuxVars[] AssignedVars[P1Thread1of1ForFork2_~arg.offset, P1Thread1of1ForFork2_~arg.base, ~y~0] [2022-12-06 06:43:02,828 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 06:43:02,834 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 92 [2022-12-06 06:43:02,834 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 272 flow [2022-12-06 06:43:02,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:02,834 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:02,834 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:02,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 06:43:02,835 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:02,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:02,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2002873139, now seen corresponding path program 1 times [2022-12-06 06:43:02,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:02,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270064220] [2022-12-06 06:43:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:02,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:02,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:02,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270064220] [2022-12-06 06:43:02,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270064220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:02,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:02,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 06:43:02,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715561820] [2022-12-06 06:43:02,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:02,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 06:43:02,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:02,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 06:43:02,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 06:43:02,936 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 21 [2022-12-06 06:43:02,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 272 flow. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:02,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:02,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 21 [2022-12-06 06:43:02,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:03,040 INFO L130 PetriNetUnfolder]: 483/842 cut-off events. [2022-12-06 06:43:03,040 INFO L131 PetriNetUnfolder]: For 1556/1556 co-relation queries the response was YES. [2022-12-06 06:43:03,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2727 conditions, 842 events. 483/842 cut-off events. For 1556/1556 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3963 event pairs, 138 based on Foata normal form. 36/878 useless extension candidates. Maximal degree in co-relation 2708. Up to 384 conditions per place. [2022-12-06 06:43:03,046 INFO L137 encePairwiseOnDemand]: 15/21 looper letters, 29 selfloop transitions, 7 changer transitions 13/49 dead transitions. [2022-12-06 06:43:03,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 377 flow [2022-12-06 06:43:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:43:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:43:03,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-12-06 06:43:03,047 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.37142857142857144 [2022-12-06 06:43:03,047 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 272 flow. Second operand 5 states and 39 transitions. [2022-12-06 06:43:03,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 377 flow [2022-12-06 06:43:03,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 377 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 06:43:03,050 INFO L231 Difference]: Finished difference. Result has 44 places, 25 transitions, 181 flow [2022-12-06 06:43:03,051 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=181, PETRI_PLACES=44, PETRI_TRANSITIONS=25} [2022-12-06 06:43:03,051 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2022-12-06 06:43:03,051 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:03,051 INFO L89 Accepts]: Start accepts. Operand has 44 places, 25 transitions, 181 flow [2022-12-06 06:43:03,052 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:03,052 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:03,052 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 25 transitions, 181 flow [2022-12-06 06:43:03,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 25 transitions, 181 flow [2022-12-06 06:43:03,057 INFO L130 PetriNetUnfolder]: 10/55 cut-off events. [2022-12-06 06:43:03,057 INFO L131 PetriNetUnfolder]: For 111/115 co-relation queries the response was YES. [2022-12-06 06:43:03,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 55 events. 10/55 cut-off events. For 111/115 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 159 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 185. Up to 21 conditions per place. [2022-12-06 06:43:03,057 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 25 transitions, 181 flow [2022-12-06 06:43:03,057 INFO L188 LiptonReduction]: Number of co-enabled transitions 132 [2022-12-06 06:43:03,060 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [257] $Ultimate##0-->L726: Formula: (and (= v_P0Thread1of1ForFork1_~arg.base_5 |v_P0Thread1of1ForFork1_#in~arg.base_5|) (= v_P0Thread1of1ForFork1_~arg.offset_5 |v_P0Thread1of1ForFork1_#in~arg.offset_5|) (= v_~y~0_61 1)) InVars {P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|} OutVars{P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_~arg.offset=v_P0Thread1of1ForFork1_~arg.offset_5, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|, ~y~0=v_~y~0_61, P0Thread1of1ForFork1_~arg.base=v_P0Thread1of1ForFork1_~arg.base_5} AuxVars[] AssignedVars[P0Thread1of1ForFork1_~arg.offset, ~y~0, P0Thread1of1ForFork1_~arg.base] and [212] $Ultimate##0-->L758: Formula: (and (= v_P2Thread1of1ForFork0_~arg.offset_5 |v_P2Thread1of1ForFork0_#in~arg.offset_5|) (= v_P2Thread1of1ForFork0_~arg.base_5 |v_P2Thread1of1ForFork0_#in~arg.base_5|) (= v_~__unbuffered_p2_EAX~0_10 v_~x~0_7)) InVars {P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_5|, ~x~0=v_~x~0_7, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_5|} OutVars{P2Thread1of1ForFork0_~arg.base=v_P2Thread1of1ForFork0_~arg.base_5, P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_5|, P2Thread1of1ForFork0_~arg.offset=v_P2Thread1of1ForFork0_~arg.offset_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_10, ~x~0=v_~x~0_7, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_~arg.base, P2Thread1of1ForFork0_~arg.offset, ~__unbuffered_p2_EAX~0] [2022-12-06 06:43:03,079 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [178] L726-->L731: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] and [212] $Ultimate##0-->L758: Formula: (and (= v_P2Thread1of1ForFork0_~arg.offset_5 |v_P2Thread1of1ForFork0_#in~arg.offset_5|) (= v_P2Thread1of1ForFork0_~arg.base_5 |v_P2Thread1of1ForFork0_#in~arg.base_5|) (= v_~__unbuffered_p2_EAX~0_10 v_~x~0_7)) InVars {P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_5|, ~x~0=v_~x~0_7, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_5|} OutVars{P2Thread1of1ForFork0_~arg.base=v_P2Thread1of1ForFork0_~arg.base_5, P2Thread1of1ForFork0_#in~arg.offset=|v_P2Thread1of1ForFork0_#in~arg.offset_5|, P2Thread1of1ForFork0_~arg.offset=v_P2Thread1of1ForFork0_~arg.offset_5, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_10, ~x~0=v_~x~0_7, P2Thread1of1ForFork0_#in~arg.base=|v_P2Thread1of1ForFork0_#in~arg.base_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_~arg.base, P2Thread1of1ForFork0_~arg.offset, ~__unbuffered_p2_EAX~0] [2022-12-06 06:43:03,162 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [226] $Ultimate##0-->L743: Formula: (and (= v_P1Thread1of1ForFork2_~arg.offset_5 |v_P1Thread1of1ForFork2_#in~arg.offset_5|) (= v_~y~0_31 2) (= v_P1Thread1of1ForFork2_~arg.base_5 |v_P1Thread1of1ForFork2_#in~arg.base_5|)) InVars {P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|} OutVars{P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_~arg.offset=v_P1Thread1of1ForFork2_~arg.offset_5, P1Thread1of1ForFork2_~arg.base=v_P1Thread1of1ForFork2_~arg.base_5, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_31} AuxVars[] AssignedVars[P1Thread1of1ForFork2_~arg.offset, P1Thread1of1ForFork2_~arg.base, ~y~0] and [257] $Ultimate##0-->L726: Formula: (and (= v_P0Thread1of1ForFork1_~arg.base_5 |v_P0Thread1of1ForFork1_#in~arg.base_5|) (= v_P0Thread1of1ForFork1_~arg.offset_5 |v_P0Thread1of1ForFork1_#in~arg.offset_5|) (= v_~y~0_61 1)) InVars {P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|} OutVars{P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_~arg.offset=v_P0Thread1of1ForFork1_~arg.offset_5, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|, ~y~0=v_~y~0_61, P0Thread1of1ForFork1_~arg.base=v_P0Thread1of1ForFork1_~arg.base_5} AuxVars[] AssignedVars[P0Thread1of1ForFork1_~arg.offset, ~y~0, P0Thread1of1ForFork1_~arg.base] [2022-12-06 06:43:03,182 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [226] $Ultimate##0-->L743: Formula: (and (= v_P1Thread1of1ForFork2_~arg.offset_5 |v_P1Thread1of1ForFork2_#in~arg.offset_5|) (= v_~y~0_31 2) (= v_P1Thread1of1ForFork2_~arg.base_5 |v_P1Thread1of1ForFork2_#in~arg.base_5|)) InVars {P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|} OutVars{P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_5|, P1Thread1of1ForFork2_~arg.offset=v_P1Thread1of1ForFork2_~arg.offset_5, P1Thread1of1ForFork2_~arg.base=v_P1Thread1of1ForFork2_~arg.base_5, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_5|, ~y~0=v_~y~0_31} AuxVars[] AssignedVars[P1Thread1of1ForFork2_~arg.offset, P1Thread1of1ForFork2_~arg.base, ~y~0] and [178] L726-->L731: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] [2022-12-06 06:43:03,200 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [268] $Ultimate##0-->L731: Formula: (and (= |v_P1Thread1of1ForFork2_#in~arg.offset_45| v_P1Thread1of1ForFork2_~arg.offset_45) (= |v_P1Thread1of1ForFork2_#in~arg.base_45| v_P1Thread1of1ForFork2_~arg.base_45) (= v_~y~0_135 v_~__unbuffered_p0_EAX~0_61) (= v_~y~0_135 2)) InVars {P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_45|, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_45|} OutVars{P1Thread1of1ForFork2_#in~arg.base=|v_P1Thread1of1ForFork2_#in~arg.base_45|, P1Thread1of1ForFork2_~arg.offset=v_P1Thread1of1ForFork2_~arg.offset_45, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_61, P1Thread1of1ForFork2_~arg.base=v_P1Thread1of1ForFork2_~arg.base_45, P1Thread1of1ForFork2_#in~arg.offset=|v_P1Thread1of1ForFork2_#in~arg.offset_45|, ~y~0=v_~y~0_135} AuxVars[] AssignedVars[P1Thread1of1ForFork2_~arg.offset, ~__unbuffered_p0_EAX~0, P1Thread1of1ForFork2_~arg.base, ~y~0] and [184] L743-->L746: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] [2022-12-06 06:43:03,221 INFO L203 LiptonReduction]: Total number of compositions: 5 [2022-12-06 06:43:03,222 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 171 [2022-12-06 06:43:03,222 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 23 transitions, 196 flow [2022-12-06 06:43:03,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,222 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:03,222 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:03,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 06:43:03,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:03,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2004162367, now seen corresponding path program 1 times [2022-12-06 06:43:03,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:03,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226390441] [2022-12-06 06:43:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:03,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:03,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:03,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226390441] [2022-12-06 06:43:03,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226390441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:03,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:03,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 06:43:03,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696629007] [2022-12-06 06:43:03,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:03,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:43:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:43:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:43:03,286 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2022-12-06 06:43:03,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 23 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:03,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2022-12-06 06:43:03,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:03,320 INFO L130 PetriNetUnfolder]: 124/237 cut-off events. [2022-12-06 06:43:03,321 INFO L131 PetriNetUnfolder]: For 868/868 co-relation queries the response was YES. [2022-12-06 06:43:03,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 237 events. 124/237 cut-off events. For 868/868 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 894 event pairs, 62 based on Foata normal form. 4/241 useless extension candidates. Maximal degree in co-relation 890. Up to 149 conditions per place. [2022-12-06 06:43:03,322 INFO L137 encePairwiseOnDemand]: 17/21 looper letters, 17 selfloop transitions, 2 changer transitions 8/27 dead transitions. [2022-12-06 06:43:03,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 27 transitions, 241 flow [2022-12-06 06:43:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:43:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:43:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-06 06:43:03,323 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2022-12-06 06:43:03,323 INFO L175 Difference]: Start difference. First operand has 43 places, 23 transitions, 196 flow. Second operand 3 states and 31 transitions. [2022-12-06 06:43:03,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 27 transitions, 241 flow [2022-12-06 06:43:03,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 164 flow, removed 18 selfloop flow, removed 11 redundant places. [2022-12-06 06:43:03,325 INFO L231 Difference]: Finished difference. Result has 31 places, 14 transitions, 60 flow [2022-12-06 06:43:03,326 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=31, PETRI_TRANSITIONS=14} [2022-12-06 06:43:03,326 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2022-12-06 06:43:03,326 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:03,326 INFO L89 Accepts]: Start accepts. Operand has 31 places, 14 transitions, 60 flow [2022-12-06 06:43:03,327 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:03,327 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:03,327 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 14 transitions, 60 flow [2022-12-06 06:43:03,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 14 transitions, 60 flow [2022-12-06 06:43:03,329 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-12-06 06:43:03,329 INFO L131 PetriNetUnfolder]: For 10/12 co-relation queries the response was YES. [2022-12-06 06:43:03,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 20 events. 0/20 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 44 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-12-06 06:43:03,330 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 14 transitions, 60 flow [2022-12-06 06:43:03,330 INFO L188 LiptonReduction]: Number of co-enabled transitions 56 [2022-12-06 06:43:03,345 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:43:03,346 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 20 [2022-12-06 06:43:03,346 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 13 transitions, 56 flow [2022-12-06 06:43:03,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,346 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:03,346 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:03,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 06:43:03,346 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1999719023, now seen corresponding path program 1 times [2022-12-06 06:43:03,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:03,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397078185] [2022-12-06 06:43:03,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:03,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:03,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397078185] [2022-12-06 06:43:03,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397078185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:03,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:03,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:43:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054187966] [2022-12-06 06:43:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:03,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:43:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:03,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:43:03,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:43:03,439 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 13 [2022-12-06 06:43:03,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 13 transitions, 56 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:03,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 13 [2022-12-06 06:43:03,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:03,482 INFO L130 PetriNetUnfolder]: 54/121 cut-off events. [2022-12-06 06:43:03,482 INFO L131 PetriNetUnfolder]: For 130/130 co-relation queries the response was YES. [2022-12-06 06:43:03,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 121 events. 54/121 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 408 event pairs, 11 based on Foata normal form. 4/125 useless extension candidates. Maximal degree in co-relation 344. Up to 68 conditions per place. [2022-12-06 06:43:03,483 INFO L137 encePairwiseOnDemand]: 8/13 looper letters, 18 selfloop transitions, 3 changer transitions 10/31 dead transitions. [2022-12-06 06:43:03,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 187 flow [2022-12-06 06:43:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:43:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:43:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2022-12-06 06:43:03,484 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5076923076923077 [2022-12-06 06:43:03,484 INFO L175 Difference]: Start difference. First operand has 28 places, 13 transitions, 56 flow. Second operand 5 states and 33 transitions. [2022-12-06 06:43:03,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 187 flow [2022-12-06 06:43:03,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 31 transitions, 163 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-06 06:43:03,486 INFO L231 Difference]: Finished difference. Result has 31 places, 15 transitions, 73 flow [2022-12-06 06:43:03,486 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=31, PETRI_TRANSITIONS=15} [2022-12-06 06:43:03,486 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2022-12-06 06:43:03,487 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:03,487 INFO L89 Accepts]: Start accepts. Operand has 31 places, 15 transitions, 73 flow [2022-12-06 06:43:03,487 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:03,487 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:03,487 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 15 transitions, 73 flow [2022-12-06 06:43:03,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 15 transitions, 73 flow [2022-12-06 06:43:03,491 INFO L130 PetriNetUnfolder]: 5/27 cut-off events. [2022-12-06 06:43:03,491 INFO L131 PetriNetUnfolder]: For 26/27 co-relation queries the response was YES. [2022-12-06 06:43:03,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 27 events. 5/27 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 50 event pairs, 2 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 69. Up to 14 conditions per place. [2022-12-06 06:43:03,492 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 15 transitions, 73 flow [2022-12-06 06:43:03,492 INFO L188 LiptonReduction]: Number of co-enabled transitions 46 [2022-12-06 06:43:03,516 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:43:03,517 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 30 [2022-12-06 06:43:03,517 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 15 transitions, 76 flow [2022-12-06 06:43:03,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,517 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:03,518 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:03,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 06:43:03,518 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:03,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:03,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1349370876, now seen corresponding path program 1 times [2022-12-06 06:43:03,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:03,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275255493] [2022-12-06 06:43:03,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:03,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:03,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:03,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275255493] [2022-12-06 06:43:03,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275255493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:03,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:03,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 06:43:03,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011421256] [2022-12-06 06:43:03,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:03,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 06:43:03,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:03,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 06:43:03,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 06:43:03,620 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 06:43:03,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 15 transitions, 76 flow. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:03,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 06:43:03,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:03,663 INFO L130 PetriNetUnfolder]: 35/87 cut-off events. [2022-12-06 06:43:03,663 INFO L131 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2022-12-06 06:43:03,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 87 events. 35/87 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 259 event pairs, 8 based on Foata normal form. 3/90 useless extension candidates. Maximal degree in co-relation 300. Up to 35 conditions per place. [2022-12-06 06:43:03,664 INFO L137 encePairwiseOnDemand]: 8/14 looper letters, 19 selfloop transitions, 5 changer transitions 6/30 dead transitions. [2022-12-06 06:43:03,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 194 flow [2022-12-06 06:43:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 06:43:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 06:43:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2022-12-06 06:43:03,666 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2022-12-06 06:43:03,666 INFO L175 Difference]: Start difference. First operand has 29 places, 15 transitions, 76 flow. Second operand 6 states and 32 transitions. [2022-12-06 06:43:03,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 194 flow [2022-12-06 06:43:03,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 181 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-06 06:43:03,667 INFO L231 Difference]: Finished difference. Result has 35 places, 15 transitions, 87 flow [2022-12-06 06:43:03,667 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=87, PETRI_PLACES=35, PETRI_TRANSITIONS=15} [2022-12-06 06:43:03,669 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2022-12-06 06:43:03,669 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:43:03,669 INFO L89 Accepts]: Start accepts. Operand has 35 places, 15 transitions, 87 flow [2022-12-06 06:43:03,670 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:43:03,670 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:03,670 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 15 transitions, 87 flow [2022-12-06 06:43:03,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 15 transitions, 87 flow [2022-12-06 06:43:03,682 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2022-12-06 06:43:03,682 INFO L131 PetriNetUnfolder]: For 23/25 co-relation queries the response was YES. [2022-12-06 06:43:03,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 20 events. 1/20 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 52. Up to 7 conditions per place. [2022-12-06 06:43:03,683 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 15 transitions, 87 flow [2022-12-06 06:43:03,683 INFO L188 LiptonReduction]: Number of co-enabled transitions 40 [2022-12-06 06:43:03,814 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 06:43:03,815 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 146 [2022-12-06 06:43:03,815 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 13 transitions, 85 flow [2022-12-06 06:43:03,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,816 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:43:03,816 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:03,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 06:43:03,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 06:43:03,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:43:03,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2004648655, now seen corresponding path program 1 times [2022-12-06 06:43:03,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:43:03,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650607789] [2022-12-06 06:43:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:43:03,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:43:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:43:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:43:03,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:43:03,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650607789] [2022-12-06 06:43:03,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650607789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:43:03,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:43:03,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 06:43:03,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051560215] [2022-12-06 06:43:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:43:03,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 06:43:03,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:43:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 06:43:03,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-06 06:43:03,902 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 13 [2022-12-06 06:43:03,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 13 transitions, 85 flow. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:43:03,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 13 [2022-12-06 06:43:03,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:43:03,926 INFO L130 PetriNetUnfolder]: 18/46 cut-off events. [2022-12-06 06:43:03,926 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-12-06 06:43:03,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 46 events. 18/46 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 4 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 190. Up to 21 conditions per place. [2022-12-06 06:43:03,927 INFO L137 encePairwiseOnDemand]: 7/13 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2022-12-06 06:43:03,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 19 transitions, 129 flow [2022-12-06 06:43:03,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:43:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:43:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-12-06 06:43:03,928 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3076923076923077 [2022-12-06 06:43:03,928 INFO L175 Difference]: Start difference. First operand has 31 places, 13 transitions, 85 flow. Second operand 5 states and 20 transitions. [2022-12-06 06:43:03,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 19 transitions, 129 flow [2022-12-06 06:43:03,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 19 transitions, 109 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-12-06 06:43:03,929 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2022-12-06 06:43:03,929 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2022-12-06 06:43:03,929 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2022-12-06 06:43:03,929 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:43:03,930 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 0 transitions, 0 flow [2022-12-06 06:43:03,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 06:43:03,930 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 06:43:03,930 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:43:03,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 06:43:03,931 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 06:43:03,931 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 06:43:03,931 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:43:03,932 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-06 06:43:03,932 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 06:43:03,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:43:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 06:43:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 06:43:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 06:43:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 06:43:03,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 06:43:03,934 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:43:03,937 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 06:43:03,937 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 06:43:03,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:43:03 BasicIcfg [2022-12-06 06:43:03,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 06:43:03,939 INFO L158 Benchmark]: Toolchain (without parser) took 5277.99ms. Allocated memory was 221.2MB in the beginning and 342.9MB in the end (delta: 121.6MB). Free memory was 196.3MB in the beginning and 270.2MB in the end (delta: -73.9MB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. [2022-12-06 06:43:03,939 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 197.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:43:03,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.33ms. Allocated memory is still 221.2MB. Free memory was 196.3MB in the beginning and 172.5MB in the end (delta: 23.8MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-06 06:43:03,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.08ms. Allocated memory is still 221.2MB. Free memory was 172.5MB in the beginning and 171.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 06:43:03,940 INFO L158 Benchmark]: Boogie Preprocessor took 25.00ms. Allocated memory is still 221.2MB. Free memory was 171.0MB in the beginning and 169.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 06:43:03,940 INFO L158 Benchmark]: RCFGBuilder took 386.89ms. Allocated memory is still 221.2MB. Free memory was 169.4MB in the beginning and 155.2MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 06:43:03,940 INFO L158 Benchmark]: TraceAbstraction took 4454.45ms. Allocated memory was 221.2MB in the beginning and 342.9MB in the end (delta: 121.6MB). Free memory was 154.7MB in the beginning and 270.2MB in the end (delta: -115.5MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. [2022-12-06 06:43:03,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 197.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 362.33ms. Allocated memory is still 221.2MB. Free memory was 196.3MB in the beginning and 172.5MB in the end (delta: 23.8MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.08ms. Allocated memory is still 221.2MB. Free memory was 172.5MB in the beginning and 171.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.00ms. Allocated memory is still 221.2MB. Free memory was 171.0MB in the beginning and 169.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 386.89ms. Allocated memory is still 221.2MB. Free memory was 169.4MB in the beginning and 155.2MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4454.45ms. Allocated memory was 221.2MB in the beginning and 342.9MB in the end (delta: 121.6MB). Free memory was 154.7MB in the beginning and 270.2MB in the end (delta: -115.5MB). Peak memory consumption was 7.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 79 PlacesBefore, 27 PlacesAfterwards, 70 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 731, independent: 692, independent conditional: 692, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 731, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 731, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 731, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 635, independent: 607, independent conditional: 0, independent unconditional: 607, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 635, independent: 597, independent conditional: 0, independent unconditional: 597, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 731, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 635, unknown conditional: 0, unknown unconditional: 635] , Statistics on independence cache: Total cache size (in pairs): 911, Positive cache size: 883, Positive conditional cache size: 0, Positive unconditional cache size: 883, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 24 PlacesBefore, 24 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, independent: 53, independent conditional: 53, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 67, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 67, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 59, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 59, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 59, unknown conditional: 0, unknown unconditional: 59] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 28 PlacesBefore, 28 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51, independent: 45, independent conditional: 45, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 51, independent: 45, independent conditional: 5, independent unconditional: 40, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 51, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 51, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, independent: 58, independent conditional: 58, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 67, independent: 58, independent conditional: 1, independent unconditional: 57, dependent: 9, dependent conditional: 4, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 67, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 38 PlacesBefore, 38 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 182, independent: 166, independent conditional: 166, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 182, independent: 166, independent conditional: 75, independent unconditional: 91, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 182, independent: 166, independent conditional: 0, independent unconditional: 166, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 182, independent: 166, independent conditional: 0, independent unconditional: 166, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 182, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 75, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 44 PlacesBefore, 43 PlacesAfterwards, 25 TransitionsBefore, 23 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 168, independent: 146, independent conditional: 146, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 168, independent: 146, independent conditional: 39, independent unconditional: 107, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 168, independent: 146, independent conditional: 1, independent unconditional: 145, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 168, independent: 146, independent conditional: 1, independent unconditional: 145, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 168, independent: 135, independent conditional: 1, independent unconditional: 134, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 38, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 28 PlacesAfterwards, 14 TransitionsBefore, 13 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, independent: 23, independent conditional: 23, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 29, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 122, Positive conditional cache size: 0, Positive unconditional cache size: 122, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 33 PlacesBefore, 31 PlacesAfterwards, 15 TransitionsBefore, 13 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, independent: 7, independent conditional: 5, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 5, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, independent: 7, independent conditional: 5, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 135, Positive conditional cache size: 0, Positive unconditional cache size: 135, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 135, Positive conditional cache size: 0, Positive unconditional cache size: 135, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 9 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=4, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 06:43:03,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...