/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:19:11,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:19:11,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:19:11,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:19:11,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:19:11,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:19:11,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:19:11,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:19:11,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:19:11,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:19:11,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:19:11,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:19:11,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:19:11,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:19:11,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:19:11,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:19:11,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:19:11,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:19:11,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:19:11,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:19:11,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:19:11,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:19:11,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:19:11,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:19:11,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 01:19:11,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 01:19:11,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 01:19:11,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 01:19:11,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 01:19:11,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 01:19:11,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 01:19:11,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 01:19:11,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 01:19:11,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 01:19:11,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 01:19:11,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 01:19:11,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 01:19:11,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 01:19:11,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:19:11,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:19:11,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:19:11,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 01:19:11,122 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:19:11,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:19:11,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:19:11,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:19:11,124 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:19:11,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:19:11,125 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:19:11,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:19:11,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:19:11,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:19:11,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:19:11,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:19:11,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:19:11,126 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:19:11,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:19:11,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:19:11,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:19:11,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:19:11,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:19:11,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:19:11,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:19:11,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:19:11,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:19:11,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:19:11,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:19:11,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:19:11,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:19:11,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:19:11,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:19:11,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:19:11,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:19:11,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:19:11,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:19:11,424 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:19:11,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2022-12-06 01:19:12,456 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:19:12,681 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:19:12,681 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2022-12-06 01:19:12,698 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ffe1fc5/1cc6d39bd7d04e8ab6d298217bfaf2ca/FLAG5d5c75b14 [2022-12-06 01:19:12,728 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ffe1fc5/1cc6d39bd7d04e8ab6d298217bfaf2ca [2022-12-06 01:19:12,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:19:12,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:19:12,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:19:12,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:19:12,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:19:12,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:19:12" (1/1) ... [2022-12-06 01:19:12,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6b2309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:12, skipping insertion in model container [2022-12-06 01:19:12,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:19:12" (1/1) ... [2022-12-06 01:19:12,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:19:12,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:19:12,911 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/safe032_tso.i[945,958] [2022-12-06 01:19:13,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:19:13,073 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:19:13,083 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/safe032_tso.i[945,958] [2022-12-06 01:19:13,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:19:13,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:19:13,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:19:13,149 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:19:13,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13 WrapperNode [2022-12-06 01:19:13,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:19:13,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:19:13,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:19:13,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:19:13,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,188 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-06 01:19:13,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:19:13,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:19:13,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:19:13,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:19:13,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,202 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:19:13,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:19:13,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:19:13,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:19:13,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (1/1) ... [2022-12-06 01:19:13,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:19:13,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:19:13,226 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 01:19:13,259 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 01:19:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 01:19:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 01:19:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 01:19:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:19:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 01:19:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:19:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:19:13,264 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 01:19:13,407 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:19:13,408 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:19:13,589 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:19:13,593 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:19:13,593 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 01:19:13,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:19:13 BoogieIcfgContainer [2022-12-06 01:19:13,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:19:13,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:19:13,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:19:13,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:19:13,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:19:12" (1/3) ... [2022-12-06 01:19:13,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e40c832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:19:13, skipping insertion in model container [2022-12-06 01:19:13,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:13" (2/3) ... [2022-12-06 01:19:13,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e40c832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:19:13, skipping insertion in model container [2022-12-06 01:19:13,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:19:13" (3/3) ... [2022-12-06 01:19:13,600 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2022-12-06 01:19:13,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:19:13,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:19:13,615 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:19:13,677 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 01:19:13,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-06 01:19:13,756 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-06 01:19:13,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:19:13,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 01:19:13,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-06 01:19:13,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-06 01:19:13,765 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:13,781 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-06 01:19:13,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 69 transitions, 147 flow [2022-12-06 01:19:13,809 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-06 01:19:13,809 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:19:13,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-06 01:19:13,812 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-06 01:19:13,812 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-06 01:19:15,661 INFO L203 LiptonReduction]: Total number of compositions: 52 [2022-12-06 01:19:15,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:19:15,683 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;@460f040b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:19:15,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 01:19:15,690 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-06 01:19:15,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:19:15,691 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:15,691 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:15,692 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 01:19:15,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:15,698 INFO L85 PathProgramCache]: Analyzing trace with hash -999261857, now seen corresponding path program 1 times [2022-12-06 01:19:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:15,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359488078] [2022-12-06 01:19:15,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:16,001 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 01:19:16,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:16,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359488078] [2022-12-06 01:19:16,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359488078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:16,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:16,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 01:19:16,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339154245] [2022-12-06 01:19:16,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:16,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:19:16,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:16,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:19:16,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:19:16,027 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-06 01:19:16,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 01:19:16,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:16,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-06 01:19:16,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:16,129 INFO L130 PetriNetUnfolder]: 520/830 cut-off events. [2022-12-06 01:19:16,129 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-06 01:19:16,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 830 events. 520/830 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3522 event pairs, 280 based on Foata normal form. 61/891 useless extension candidates. Maximal degree in co-relation 1702. Up to 601 conditions per place. [2022-12-06 01:19:16,134 INFO L137 encePairwiseOnDemand]: 9/18 looper letters, 24 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2022-12-06 01:19:16,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 31 transitions, 139 flow [2022-12-06 01:19:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:19:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:19:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-12-06 01:19:16,142 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2022-12-06 01:19:16,144 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2022-12-06 01:19:16,144 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:16,144 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 31 transitions, 139 flow [2022-12-06 01:19:16,148 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 31 transitions, 139 flow [2022-12-06 01:19:16,149 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:16,213 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 01:19:16,215 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 71 [2022-12-06 01:19:16,215 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 31 transitions, 139 flow [2022-12-06 01:19:16,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 01:19:16,215 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:16,215 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:16,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:19:16,216 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 01:19:16,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:16,216 INFO L85 PathProgramCache]: Analyzing trace with hash -912346219, now seen corresponding path program 1 times [2022-12-06 01:19:16,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:16,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887827464] [2022-12-06 01:19:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:16,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:16,352 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 01:19:16,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:16,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887827464] [2022-12-06 01:19:16,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887827464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:16,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:16,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 01:19:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935590617] [2022-12-06 01:19:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:16,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:19:16,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:16,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:19:16,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:19:16,355 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-06 01:19:16,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 31 transitions, 139 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 01:19:16,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:16,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-06 01:19:16,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:16,470 INFO L130 PetriNetUnfolder]: 511/817 cut-off events. [2022-12-06 01:19:16,471 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-06 01:19:16,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 817 events. 511/817 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3421 event pairs, 70 based on Foata normal form. 2/819 useless extension candidates. Maximal degree in co-relation 2491. Up to 594 conditions per place. [2022-12-06 01:19:16,474 INFO L137 encePairwiseOnDemand]: 9/18 looper letters, 32 selfloop transitions, 11 changer transitions 0/43 dead transitions. [2022-12-06 01:19:16,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 43 transitions, 279 flow [2022-12-06 01:19:16,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 01:19:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 01:19:16,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-12-06 01:19:16,475 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2022-12-06 01:19:16,476 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2022-12-06 01:19:16,476 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:16,476 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 43 transitions, 279 flow [2022-12-06 01:19:16,479 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 43 transitions, 279 flow [2022-12-06 01:19:16,479 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:16,537 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 01:19:16,538 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 62 [2022-12-06 01:19:16,538 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 43 transitions, 283 flow [2022-12-06 01:19:16,538 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 01:19:16,538 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:16,538 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:16,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 01:19:16,538 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 01:19:16,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:16,538 INFO L85 PathProgramCache]: Analyzing trace with hash -912346529, now seen corresponding path program 1 times [2022-12-06 01:19:16,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:16,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400318897] [2022-12-06 01:19:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:16,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:16,606 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 01:19:16,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:16,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400318897] [2022-12-06 01:19:16,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400318897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:16,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:16,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 01:19:16,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357490558] [2022-12-06 01:19:16,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:16,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:19:16,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:16,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:19:16,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:19:16,608 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 19 [2022-12-06 01:19:16,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 43 transitions, 283 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 01:19:16,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:16,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 19 [2022-12-06 01:19:16,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:16,674 INFO L130 PetriNetUnfolder]: 363/626 cut-off events. [2022-12-06 01:19:16,674 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-06 01:19:16,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2559 conditions, 626 events. 363/626 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2717 event pairs, 22 based on Foata normal form. 26/652 useless extension candidates. Maximal degree in co-relation 2542. Up to 447 conditions per place. [2022-12-06 01:19:16,676 INFO L137 encePairwiseOnDemand]: 11/19 looper letters, 46 selfloop transitions, 7 changer transitions 5/58 dead transitions. [2022-12-06 01:19:16,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 58 transitions, 491 flow [2022-12-06 01:19:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 01:19:16,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 01:19:16,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-06 01:19:16,677 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4868421052631579 [2022-12-06 01:19:16,678 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2022-12-06 01:19:16,678 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:16,678 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 58 transitions, 491 flow [2022-12-06 01:19:16,681 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 58 transitions, 491 flow [2022-12-06 01:19:16,681 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:16,682 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:19:16,682 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4 [2022-12-06 01:19:16,682 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 58 transitions, 491 flow [2022-12-06 01:19:16,682 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 01:19:16,683 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:16,683 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:16,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 01:19:16,683 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 01:19:16,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:16,683 INFO L85 PathProgramCache]: Analyzing trace with hash -592096149, now seen corresponding path program 1 times [2022-12-06 01:19:16,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:16,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149949630] [2022-12-06 01:19:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:16,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:16,737 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 01:19:16,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:16,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149949630] [2022-12-06 01:19:16,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149949630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:16,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:16,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 01:19:16,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142047031] [2022-12-06 01:19:16,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:16,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:19:16,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:16,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:19:16,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:19:16,738 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 18 [2022-12-06 01:19:16,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 58 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 01:19:16,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:16,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 18 [2022-12-06 01:19:16,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:16,818 INFO L130 PetriNetUnfolder]: 446/789 cut-off events. [2022-12-06 01:19:16,818 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2022-12-06 01:19:16,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3903 conditions, 789 events. 446/789 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3795 event pairs, 14 based on Foata normal form. 16/805 useless extension candidates. Maximal degree in co-relation 3883. Up to 593 conditions per place. [2022-12-06 01:19:16,821 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 49 selfloop transitions, 5 changer transitions 17/74 dead transitions. [2022-12-06 01:19:16,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 74 transitions, 759 flow [2022-12-06 01:19:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:19:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:19:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-06 01:19:16,821 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2022-12-06 01:19:16,822 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2022-12-06 01:19:16,822 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:16,822 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 74 transitions, 759 flow [2022-12-06 01:19:16,825 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 74 transitions, 759 flow [2022-12-06 01:19:16,826 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:16,826 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:19:16,827 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 5 [2022-12-06 01:19:16,827 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 74 transitions, 759 flow [2022-12-06 01:19:16,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 01:19:16,827 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:16,827 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:16,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 01:19:16,827 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 01:19:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:16,827 INFO L85 PathProgramCache]: Analyzing trace with hash -592096459, now seen corresponding path program 1 times [2022-12-06 01:19:16,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:16,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231865942] [2022-12-06 01:19:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:16,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:16,879 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 01:19:16,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:16,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231865942] [2022-12-06 01:19:16,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231865942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:16,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:16,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 01:19:16,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143693574] [2022-12-06 01:19:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:16,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:19:16,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:19:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:19:16,881 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-06 01:19:16,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 74 transitions, 759 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 01:19:16,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:16,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-06 01:19:16,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:16,941 INFO L130 PetriNetUnfolder]: 435/772 cut-off events. [2022-12-06 01:19:16,941 INFO L131 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2022-12-06 01:19:16,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4391 conditions, 772 events. 435/772 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3697 event pairs, 0 based on Foata normal form. 4/776 useless extension candidates. Maximal degree in co-relation 4368. Up to 587 conditions per place. [2022-12-06 01:19:16,944 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 54 selfloop transitions, 9 changer transitions 24/98 dead transitions. [2022-12-06 01:19:16,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 98 transitions, 1173 flow [2022-12-06 01:19:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:19:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:19:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-12-06 01:19:16,945 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2022-12-06 01:19:16,945 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 12 predicate places. [2022-12-06 01:19:16,946 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:16,946 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 98 transitions, 1173 flow [2022-12-06 01:19:16,949 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 98 transitions, 1173 flow [2022-12-06 01:19:16,949 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:17,008 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 01:19:17,009 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 63 [2022-12-06 01:19:17,009 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 98 transitions, 1179 flow [2022-12-06 01:19:17,009 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 01:19:17,009 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:17,009 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:17,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 01:19:17,010 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 01:19:17,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:17,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1153604289, now seen corresponding path program 1 times [2022-12-06 01:19:17,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:17,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121290967] [2022-12-06 01:19:17,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:17,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:17,068 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 01:19:17,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:17,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121290967] [2022-12-06 01:19:17,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121290967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:17,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:17,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 01:19:17,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17691198] [2022-12-06 01:19:17,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:17,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:19:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:17,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:19:17,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:19:17,069 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 19 [2022-12-06 01:19:17,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 98 transitions, 1179 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:19:17,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:17,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 19 [2022-12-06 01:19:17,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:17,146 INFO L130 PetriNetUnfolder]: 406/735 cut-off events. [2022-12-06 01:19:17,146 INFO L131 PetriNetUnfolder]: For 460/460 co-relation queries the response was YES. [2022-12-06 01:19:17,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4623 conditions, 735 events. 406/735 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3515 event pairs, 1 based on Foata normal form. 13/748 useless extension candidates. Maximal degree in co-relation 4597. Up to 568 conditions per place. [2022-12-06 01:19:17,149 INFO L137 encePairwiseOnDemand]: 12/19 looper letters, 67 selfloop transitions, 15 changer transitions 117/215 dead transitions. [2022-12-06 01:19:17,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 215 transitions, 2983 flow [2022-12-06 01:19:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 01:19:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 01:19:17,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-06 01:19:17,152 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2022-12-06 01:19:17,152 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 16 predicate places. [2022-12-06 01:19:17,152 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:17,152 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 215 transitions, 2983 flow [2022-12-06 01:19:17,157 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 215 transitions, 2983 flow [2022-12-06 01:19:17,157 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:17,158 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:19:17,158 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-06 01:19:17,158 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 215 transitions, 2983 flow [2022-12-06 01:19:17,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:19:17,158 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:17,158 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:17,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 01:19:17,159 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 01:19:17,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:17,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1203749259, now seen corresponding path program 1 times [2022-12-06 01:19:17,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:17,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816134078] [2022-12-06 01:19:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:17,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:17,253 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 01:19:17,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:17,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816134078] [2022-12-06 01:19:17,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816134078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:17,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:17,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 01:19:17,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647340940] [2022-12-06 01:19:17,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:17,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:19:17,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:17,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:19:17,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:19:17,254 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 01:19:17,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 215 transitions, 2983 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:19:17,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:17,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 01:19:17,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:17,333 INFO L130 PetriNetUnfolder]: 391/707 cut-off events. [2022-12-06 01:19:17,333 INFO L131 PetriNetUnfolder]: For 909/909 co-relation queries the response was YES. [2022-12-06 01:19:17,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4875 conditions, 707 events. 391/707 cut-off events. For 909/909 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3339 event pairs, 0 based on Foata normal form. 5/712 useless extension candidates. Maximal degree in co-relation 4846. Up to 549 conditions per place. [2022-12-06 01:19:17,336 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 59 selfloop transitions, 22 changer transitions 142/237 dead transitions. [2022-12-06 01:19:17,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 237 transitions, 3726 flow [2022-12-06 01:19:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 01:19:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 01:19:17,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-06 01:19:17,337 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6617647058823529 [2022-12-06 01:19:17,337 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 19 predicate places. [2022-12-06 01:19:17,338 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:17,338 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 237 transitions, 3726 flow [2022-12-06 01:19:17,343 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 237 transitions, 3726 flow [2022-12-06 01:19:17,343 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:17,344 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:19:17,344 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-06 01:19:17,344 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 237 transitions, 3726 flow [2022-12-06 01:19:17,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:19:17,345 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:19:17,345 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:17,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 01:19:17,345 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 01:19:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:19:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash 625414994, now seen corresponding path program 1 times [2022-12-06 01:19:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:19:17,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147038952] [2022-12-06 01:19:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:19:17,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:19:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:19:17,409 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 01:19:17,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:19:17,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147038952] [2022-12-06 01:19:17,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147038952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:19:17,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:19:17,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 01:19:17,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421669696] [2022-12-06 01:19:17,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:19:17,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 01:19:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:19:17,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 01:19:17,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-06 01:19:17,411 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 01:19:17,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 237 transitions, 3726 flow. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 01:19:17,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:19:17,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 01:19:17,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:19:17,495 INFO L130 PetriNetUnfolder]: 390/701 cut-off events. [2022-12-06 01:19:17,495 INFO L131 PetriNetUnfolder]: For 1556/1556 co-relation queries the response was YES. [2022-12-06 01:19:17,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5257 conditions, 701 events. 390/701 cut-off events. For 1556/1556 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3274 event pairs, 0 based on Foata normal form. 2/703 useless extension candidates. Maximal degree in co-relation 5225. Up to 545 conditions per place. [2022-12-06 01:19:17,498 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 0 selfloop transitions, 0 changer transitions 236/236 dead transitions. [2022-12-06 01:19:17,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 236 transitions, 4140 flow [2022-12-06 01:19:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 01:19:17,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 01:19:17,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2022-12-06 01:19:17,499 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5529411764705883 [2022-12-06 01:19:17,501 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 22 predicate places. [2022-12-06 01:19:17,501 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:19:17,501 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 236 transitions, 4140 flow [2022-12-06 01:19:17,507 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 236 transitions, 4140 flow [2022-12-06 01:19:17,507 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 01:19:17,508 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:19:17,509 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 8 [2022-12-06 01:19:17,509 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 236 transitions, 4140 flow [2022-12-06 01:19:17,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 01:19:17,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 01:19:17,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 01:19:17,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 01:19:17,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 01:19:17,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 01:19:17,512 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:19:17,514 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:19:17,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:19:17,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:19:17 BasicIcfg [2022-12-06 01:19:17,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:19:17,516 INFO L158 Benchmark]: Toolchain (without parser) took 4784.83ms. Allocated memory was 183.5MB in the beginning and 256.9MB in the end (delta: 73.4MB). Free memory was 141.9MB in the beginning and 92.2MB in the end (delta: 49.7MB). Peak memory consumption was 123.6MB. Max. memory is 8.0GB. [2022-12-06 01:19:17,516 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:19:17,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.94ms. Allocated memory is still 183.5MB. Free memory was 141.4MB in the beginning and 117.8MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 01:19:17,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.15ms. Allocated memory is still 183.5MB. Free memory was 117.8MB in the beginning and 115.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:19:17,516 INFO L158 Benchmark]: Boogie Preprocessor took 15.81ms. Allocated memory is still 183.5MB. Free memory was 115.7MB in the beginning and 114.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 01:19:17,517 INFO L158 Benchmark]: RCFGBuilder took 389.92ms. Allocated memory is still 183.5MB. Free memory was 114.1MB in the beginning and 100.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 01:19:17,517 INFO L158 Benchmark]: TraceAbstraction took 3919.15ms. Allocated memory was 183.5MB in the beginning and 256.9MB in the end (delta: 73.4MB). Free memory was 100.0MB in the beginning and 92.2MB in the end (delta: 7.8MB). Peak memory consumption was 82.7MB. Max. memory is 8.0GB. [2022-12-06 01:19:17,518 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 183.5MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 417.94ms. Allocated memory is still 183.5MB. Free memory was 141.4MB in the beginning and 117.8MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.15ms. Allocated memory is still 183.5MB. Free memory was 117.8MB in the beginning and 115.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.81ms. Allocated memory is still 183.5MB. Free memory was 115.7MB in the beginning and 114.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 389.92ms. Allocated memory is still 183.5MB. Free memory was 114.1MB in the beginning and 100.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3919.15ms. Allocated memory was 183.5MB in the beginning and 256.9MB in the end (delta: 73.4MB). Free memory was 100.0MB in the beginning and 92.2MB in the end (delta: 7.8MB). Peak memory consumption was 82.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 78 PlacesBefore, 27 PlacesAfterwards, 69 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 770, independent: 734, independent conditional: 734, independent unconditional: 0, dependent: 36, dependent conditional: 36, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 770, independent: 734, independent conditional: 0, independent unconditional: 734, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 770, independent: 734, independent conditional: 0, independent unconditional: 734, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 770, independent: 734, independent conditional: 0, independent unconditional: 734, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 654, independent: 630, independent conditional: 0, independent unconditional: 630, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 654, independent: 616, independent conditional: 0, independent unconditional: 616, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 770, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 654, unknown conditional: 0, unknown unconditional: 654] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 933, Positive conditional cache size: 0, Positive unconditional cache size: 933, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 29 PlacesBefore, 29 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 32 PlacesBefore, 32 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 35 PlacesBefore, 35 PlacesAfterwards, 58 TransitionsBefore, 58 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 37 PlacesBefore, 37 PlacesAfterwards, 74 TransitionsBefore, 74 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 39 PlacesBefore, 39 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 43 PlacesBefore, 43 PlacesAfterwards, 215 TransitionsBefore, 215 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 46 PlacesBefore, 46 PlacesAfterwards, 237 TransitionsBefore, 237 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 49 PlacesBefore, 49 PlacesAfterwards, 236 TransitionsBefore, 236 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 107 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: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 10 mSDtfsCounter, 284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4140occurred in iteration=8, InterpolantAutomatonStates: 31, 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, 0.6s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 01:19:17,558 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...