/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:13:38,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:13:38,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:13:38,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:13:38,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:13:38,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:13:38,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:13:38,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:13:38,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:13:38,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:13:38,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:13:38,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:13:38,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:13:38,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:13:38,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:13:38,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:13:38,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:13:38,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:13:38,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:13:38,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:13:38,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:13:38,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:13:38,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:13:38,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:13:38,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:13:38,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:13:38,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:13:38,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:13:38,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:13:38,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:13:38,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:13:38,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:13:38,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:13:38,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:13:38,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:13:38,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:13:38,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:13:38,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:13:38,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:13:38,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:13:38,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:13:38,161 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:13:38,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:13:38,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:13:38,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:13:38,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:13:38,203 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:13:38,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:13:38,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:13:38,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:13:38,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:13:38,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:13:38,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:13:38,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:13:38,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:13:38,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:13:38,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:13:38,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:13:38,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:13:38,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:13:38,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:13:38,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:13:38,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:13:38,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:13:38,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:13:38,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:13:38,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:13:38,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:13:38,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:13:38,207 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:13:38,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:13:38,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:13:38,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:13:38,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:13:38,496 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:13:38,496 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:13:38,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i [2022-12-06 04:13:39,349 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:13:39,600 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:13:39,601 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix033_tso.oepc.i [2022-12-06 04:13:39,619 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/321e87c39/3fc9da87cef045f18a2b01aade3d6677/FLAGb373c178e [2022-12-06 04:13:39,635 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/321e87c39/3fc9da87cef045f18a2b01aade3d6677 [2022-12-06 04:13:39,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:13:39,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:13:39,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:13:39,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:13:39,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:13:39,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:13:39" (1/1) ... [2022-12-06 04:13:39,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db458d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:39, skipping insertion in model container [2022-12-06 04:13:39,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:13:39" (1/1) ... [2022-12-06 04:13:39,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:13:39,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:13:39,845 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/mix033_tso.oepc.i[949,962] [2022-12-06 04:13:39,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:39,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:39,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:13:40,029 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:13:40,036 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/mix033_tso.oepc.i[949,962] [2022-12-06 04:13:40,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:13:40,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:13:40,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:13:40,130 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:13:40,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40 WrapperNode [2022-12-06 04:13:40,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:13:40,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:13:40,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:13:40,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:13:40,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,176 INFO L138 Inliner]: procedures = 176, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2022-12-06 04:13:40,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:13:40,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:13:40,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:13:40,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:13:40,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:13:40,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:13:40,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:13:40,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:13:40,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (1/1) ... [2022-12-06 04:13:40,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:13:40,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:13:40,241 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 04:13:40,253 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 04:13:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:13:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:13:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:13:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:13:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:13:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 04:13:40,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 04:13:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 04:13:40,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 04:13:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 04:13:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 04:13:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:13:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:13:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:13:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:13:40,273 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 04:13:40,393 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:13:40,394 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:13:40,690 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:13:40,785 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:13:40,785 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:13:40,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:13:40 BoogieIcfgContainer [2022-12-06 04:13:40,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:13:40,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:13:40,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:13:40,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:13:40,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:13:39" (1/3) ... [2022-12-06 04:13:40,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a134bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:13:40, skipping insertion in model container [2022-12-06 04:13:40,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:13:40" (2/3) ... [2022-12-06 04:13:40,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a134bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:13:40, skipping insertion in model container [2022-12-06 04:13:40,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:13:40" (3/3) ... [2022-12-06 04:13:40,792 INFO L112 eAbstractionObserver]: Analyzing ICFG mix033_tso.oepc.i [2022-12-06 04:13:40,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:13:40,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 04:13:40,805 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:13:40,874 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:13:40,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2022-12-06 04:13:40,965 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-12-06 04:13:40,966 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:13:40,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-12-06 04:13:40,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow [2022-12-06 04:13:40,974 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow [2022-12-06 04:13:40,975 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:40,992 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 235 flow [2022-12-06 04:13:40,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 235 flow [2022-12-06 04:13:41,034 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-12-06 04:13:41,034 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:13:41,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-12-06 04:13:41,040 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 235 flow [2022-12-06 04:13:41,040 INFO L188 LiptonReduction]: Number of co-enabled transitions 2290 [2022-12-06 04:13:45,458 INFO L203 LiptonReduction]: Total number of compositions: 88 [2022-12-06 04:13:45,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:13:45,473 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;@1da10171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:13:45,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-06 04:13:45,476 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-06 04:13:45,476 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:13:45,476 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:45,476 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 04:13:45,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:45,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:45,479 INFO L85 PathProgramCache]: Analyzing trace with hash 475948125, now seen corresponding path program 1 times [2022-12-06 04:13:45,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:45,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817254773] [2022-12-06 04:13:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:45,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:45,783 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 04:13:45,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:45,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817254773] [2022-12-06 04:13:45,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817254773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:45,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:45,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:13:45,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201422141] [2022-12-06 04:13:45,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:45,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:13:45,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:45,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:13:45,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:13:45,807 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 29 [2022-12-06 04:13:45,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:13:45,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:45,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 29 [2022-12-06 04:13:45,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:46,072 INFO L130 PetriNetUnfolder]: 879/1449 cut-off events. [2022-12-06 04:13:46,072 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-06 04:13:46,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2816 conditions, 1449 events. 879/1449 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7381 event pairs, 240 based on Foata normal form. 0/1284 useless extension candidates. Maximal degree in co-relation 2805. Up to 1060 conditions per place. [2022-12-06 04:13:46,080 INFO L137 encePairwiseOnDemand]: 24/29 looper letters, 27 selfloop transitions, 2 changer transitions 6/40 dead transitions. [2022-12-06 04:13:46,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 162 flow [2022-12-06 04:13:46,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:13:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:13:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2022-12-06 04:13:46,088 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.632183908045977 [2022-12-06 04:13:46,089 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 55 transitions. [2022-12-06 04:13:46,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 162 flow [2022-12-06 04:13:46,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 158 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 04:13:46,093 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 56 flow [2022-12-06 04:13:46,094 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2022-12-06 04:13:46,096 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -3 predicate places. [2022-12-06 04:13:46,096 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:46,097 INFO L89 Accepts]: Start accepts. Operand has 35 places, 23 transitions, 56 flow [2022-12-06 04:13:46,098 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:46,098 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:46,099 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 23 transitions, 56 flow [2022-12-06 04:13:46,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 23 transitions, 56 flow [2022-12-06 04:13:46,103 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-12-06 04:13:46,103 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:13:46,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-06 04:13:46,103 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 56 flow [2022-12-06 04:13:46,104 INFO L188 LiptonReduction]: Number of co-enabled transitions 266 [2022-12-06 04:13:46,165 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:13:46,167 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 71 [2022-12-06 04:13:46,167 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 56 flow [2022-12-06 04:13:46,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:13:46,167 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:46,167 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:13:46,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:13:46,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:46,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:46,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1135541082, now seen corresponding path program 1 times [2022-12-06 04:13:46,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:46,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145036976] [2022-12-06 04:13:46,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:46,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:46,470 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 04:13:46,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:46,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145036976] [2022-12-06 04:13:46,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145036976] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:46,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:46,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:13:46,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133845454] [2022-12-06 04:13:46,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:46,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:13:46,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:46,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:13:46,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:13:46,473 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 23 [2022-12-06 04:13:46,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 56 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 04:13:46,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:46,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 23 [2022-12-06 04:13:46,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:46,751 INFO L130 PetriNetUnfolder]: 1545/2276 cut-off events. [2022-12-06 04:13:46,751 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-12-06 04:13:46,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4728 conditions, 2276 events. 1545/2276 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9750 event pairs, 449 based on Foata normal form. 60/2336 useless extension candidates. Maximal degree in co-relation 4718. Up to 1707 conditions per place. [2022-12-06 04:13:46,760 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2022-12-06 04:13:46,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 156 flow [2022-12-06 04:13:46,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:13:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:13:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-12-06 04:13:46,762 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5362318840579711 [2022-12-06 04:13:46,762 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 56 flow. Second operand 3 states and 37 transitions. [2022-12-06 04:13:46,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 156 flow [2022-12-06 04:13:46,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:13:46,765 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 60 flow [2022-12-06 04:13:46,766 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2022-12-06 04:13:46,766 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -5 predicate places. [2022-12-06 04:13:46,766 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:46,766 INFO L89 Accepts]: Start accepts. Operand has 33 places, 23 transitions, 60 flow [2022-12-06 04:13:46,767 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:46,767 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:46,767 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 23 transitions, 60 flow [2022-12-06 04:13:46,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 60 flow [2022-12-06 04:13:46,772 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-12-06 04:13:46,772 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:13:46,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 04:13:46,773 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 23 transitions, 60 flow [2022-12-06 04:13:46,773 INFO L188 LiptonReduction]: Number of co-enabled transitions 262 [2022-12-06 04:13:46,908 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:13:46,909 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 143 [2022-12-06 04:13:46,909 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 58 flow [2022-12-06 04:13:46,909 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 04:13:46,909 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:46,909 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:13:46,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:13:46,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:46,910 INFO L85 PathProgramCache]: Analyzing trace with hash 939348658, now seen corresponding path program 1 times [2022-12-06 04:13:46,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:46,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980304972] [2022-12-06 04:13:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:47,179 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 04:13:47,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:47,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980304972] [2022-12-06 04:13:47,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980304972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:47,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:47,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:13:47,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840380590] [2022-12-06 04:13:47,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:47,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:13:47,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:47,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:13:47,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:13:47,182 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-06 04:13:47,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 58 flow. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:13:47,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:47,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-06 04:13:47,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:47,399 INFO L130 PetriNetUnfolder]: 1218/1809 cut-off events. [2022-12-06 04:13:47,399 INFO L131 PetriNetUnfolder]: For 187/187 co-relation queries the response was YES. [2022-12-06 04:13:47,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3965 conditions, 1809 events. 1218/1809 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7161 event pairs, 414 based on Foata normal form. 40/1849 useless extension candidates. Maximal degree in co-relation 3954. Up to 1245 conditions per place. [2022-12-06 04:13:47,407 INFO L137 encePairwiseOnDemand]: 19/22 looper letters, 30 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2022-12-06 04:13:47,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 145 flow [2022-12-06 04:13:47,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:13:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:13:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-12-06 04:13:47,409 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-06 04:13:47,410 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 58 flow. Second operand 3 states and 33 transitions. [2022-12-06 04:13:47,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 145 flow [2022-12-06 04:13:47,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 139 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:13:47,411 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 62 flow [2022-12-06 04:13:47,411 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2022-12-06 04:13:47,412 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -5 predicate places. [2022-12-06 04:13:47,412 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:47,412 INFO L89 Accepts]: Start accepts. Operand has 33 places, 22 transitions, 62 flow [2022-12-06 04:13:47,413 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:47,413 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:47,413 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 22 transitions, 62 flow [2022-12-06 04:13:47,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 22 transitions, 62 flow [2022-12-06 04:13:47,416 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-06 04:13:47,416 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:13:47,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 04:13:47,416 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 22 transitions, 62 flow [2022-12-06 04:13:47,417 INFO L188 LiptonReduction]: Number of co-enabled transitions 232 [2022-12-06 04:13:47,453 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:13:47,454 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 42 [2022-12-06 04:13:47,454 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 60 flow [2022-12-06 04:13:47,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:13:47,454 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:47,454 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:13:47,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:13:47,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash -944142239, now seen corresponding path program 1 times [2022-12-06 04:13:47,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:47,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14123399] [2022-12-06 04:13:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:47,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:48,004 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 04:13:48,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:48,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14123399] [2022-12-06 04:13:48,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14123399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:48,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:48,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:13:48,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848858162] [2022-12-06 04:13:48,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:48,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:13:48,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:48,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:13:48,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:13:48,006 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 21 [2022-12-06 04:13:48,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 60 flow. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:13:48,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:48,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 21 [2022-12-06 04:13:48,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:48,203 INFO L130 PetriNetUnfolder]: 1220/1828 cut-off events. [2022-12-06 04:13:48,203 INFO L131 PetriNetUnfolder]: For 366/366 co-relation queries the response was YES. [2022-12-06 04:13:48,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4127 conditions, 1828 events. 1220/1828 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8008 event pairs, 146 based on Foata normal form. 40/1868 useless extension candidates. Maximal degree in co-relation 4115. Up to 1139 conditions per place. [2022-12-06 04:13:48,211 INFO L137 encePairwiseOnDemand]: 15/21 looper letters, 42 selfloop transitions, 5 changer transitions 0/47 dead transitions. [2022-12-06 04:13:48,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 47 transitions, 216 flow [2022-12-06 04:13:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:13:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:13:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2022-12-06 04:13:48,212 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2022-12-06 04:13:48,213 INFO L175 Difference]: Start difference. First operand has 32 places, 21 transitions, 60 flow. Second operand 4 states and 48 transitions. [2022-12-06 04:13:48,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 47 transitions, 216 flow [2022-12-06 04:13:48,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 47 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:13:48,214 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 84 flow [2022-12-06 04:13:48,214 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2022-12-06 04:13:48,215 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -4 predicate places. [2022-12-06 04:13:48,215 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:48,215 INFO L89 Accepts]: Start accepts. Operand has 34 places, 24 transitions, 84 flow [2022-12-06 04:13:48,215 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:48,216 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:48,216 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 24 transitions, 84 flow [2022-12-06 04:13:48,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 84 flow [2022-12-06 04:13:48,223 INFO L130 PetriNetUnfolder]: 20/68 cut-off events. [2022-12-06 04:13:48,223 INFO L131 PetriNetUnfolder]: For 31/37 co-relation queries the response was YES. [2022-12-06 04:13:48,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 68 events. 20/68 cut-off events. For 31/37 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 233 event pairs, 9 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 138. Up to 38 conditions per place. [2022-12-06 04:13:48,224 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 24 transitions, 84 flow [2022-12-06 04:13:48,224 INFO L188 LiptonReduction]: Number of co-enabled transitions 244 [2022-12-06 04:13:48,232 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:13:48,233 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-06 04:13:48,233 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 84 flow [2022-12-06 04:13:48,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:13:48,233 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:48,234 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:13:48,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:13:48,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:48,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1133579800, now seen corresponding path program 1 times [2022-12-06 04:13:48,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:48,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950681152] [2022-12-06 04:13:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:48,340 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 04:13:48,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:48,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950681152] [2022-12-06 04:13:48,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950681152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:48,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:48,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:13:48,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691074119] [2022-12-06 04:13:48,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:48,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:13:48,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:13:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:13:48,341 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2022-12-06 04:13:48,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 04:13:48,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:48,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2022-12-06 04:13:48,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:48,542 INFO L130 PetriNetUnfolder]: 1020/1650 cut-off events. [2022-12-06 04:13:48,542 INFO L131 PetriNetUnfolder]: For 719/719 co-relation queries the response was YES. [2022-12-06 04:13:48,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4160 conditions, 1650 events. 1020/1650 cut-off events. For 719/719 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8399 event pairs, 194 based on Foata normal form. 34/1683 useless extension candidates. Maximal degree in co-relation 4147. Up to 759 conditions per place. [2022-12-06 04:13:48,548 INFO L137 encePairwiseOnDemand]: 18/21 looper letters, 38 selfloop transitions, 2 changer transitions 5/47 dead transitions. [2022-12-06 04:13:48,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 249 flow [2022-12-06 04:13:48,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:13:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:13:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-12-06 04:13:48,550 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2022-12-06 04:13:48,550 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 84 flow. Second operand 4 states and 46 transitions. [2022-12-06 04:13:48,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 249 flow [2022-12-06 04:13:48,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:13:48,551 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 91 flow [2022-12-06 04:13:48,551 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2022-12-06 04:13:48,552 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2022-12-06 04:13:48,552 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:48,552 INFO L89 Accepts]: Start accepts. Operand has 37 places, 25 transitions, 91 flow [2022-12-06 04:13:48,553 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:48,553 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:48,553 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 91 flow [2022-12-06 04:13:48,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 91 flow [2022-12-06 04:13:48,563 INFO L130 PetriNetUnfolder]: 31/108 cut-off events. [2022-12-06 04:13:48,564 INFO L131 PetriNetUnfolder]: For 79/86 co-relation queries the response was YES. [2022-12-06 04:13:48,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 108 events. 31/108 cut-off events. For 79/86 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 459 event pairs, 16 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 230. Up to 61 conditions per place. [2022-12-06 04:13:48,565 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 91 flow [2022-12-06 04:13:48,565 INFO L188 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-06 04:13:48,566 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:13:48,566 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-06 04:13:48,566 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 91 flow [2022-12-06 04:13:48,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 04:13:48,567 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:48,567 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:13:48,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 04:13:48,567 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:48,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash -340893794, now seen corresponding path program 2 times [2022-12-06 04:13:48,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:48,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99934793] [2022-12-06 04:13:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:48,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:48,717 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 04:13:48,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:48,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99934793] [2022-12-06 04:13:48,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99934793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:48,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:48,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:13:48,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946457392] [2022-12-06 04:13:48,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:48,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:13:48,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:48,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:13:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:13:48,719 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-06 04:13:48,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 04:13:48,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:48,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-06 04:13:48,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:48,863 INFO L130 PetriNetUnfolder]: 686/1194 cut-off events. [2022-12-06 04:13:48,864 INFO L131 PetriNetUnfolder]: For 726/730 co-relation queries the response was YES. [2022-12-06 04:13:48,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3148 conditions, 1194 events. 686/1194 cut-off events. For 726/730 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6487 event pairs, 142 based on Foata normal form. 115/1292 useless extension candidates. Maximal degree in co-relation 3134. Up to 473 conditions per place. [2022-12-06 04:13:48,869 INFO L137 encePairwiseOnDemand]: 15/21 looper letters, 44 selfloop transitions, 5 changer transitions 1/54 dead transitions. [2022-12-06 04:13:48,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 291 flow [2022-12-06 04:13:48,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:13:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:13:48,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2022-12-06 04:13:48,870 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2022-12-06 04:13:48,870 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 91 flow. Second operand 4 states and 55 transitions. [2022-12-06 04:13:48,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 291 flow [2022-12-06 04:13:48,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:13:48,872 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 124 flow [2022-12-06 04:13:48,872 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2022-12-06 04:13:48,873 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2022-12-06 04:13:48,873 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:48,873 INFO L89 Accepts]: Start accepts. Operand has 41 places, 28 transitions, 124 flow [2022-12-06 04:13:48,874 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:48,874 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:48,874 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 28 transitions, 124 flow [2022-12-06 04:13:48,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 28 transitions, 124 flow [2022-12-06 04:13:48,906 INFO L130 PetriNetUnfolder]: 85/238 cut-off events. [2022-12-06 04:13:48,906 INFO L131 PetriNetUnfolder]: For 197/222 co-relation queries the response was YES. [2022-12-06 04:13:48,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 238 events. 85/238 cut-off events. For 197/222 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1303 event pairs, 40 based on Foata normal form. 2/222 useless extension candidates. Maximal degree in co-relation 616. Up to 113 conditions per place. [2022-12-06 04:13:48,908 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 28 transitions, 124 flow [2022-12-06 04:13:48,908 INFO L188 LiptonReduction]: Number of co-enabled transitions 288 [2022-12-06 04:13:48,910 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:13:48,911 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 38 [2022-12-06 04:13:48,911 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 124 flow [2022-12-06 04:13:48,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 04:13:48,911 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:48,911 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:13:48,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 04:13:48,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:48,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:48,912 INFO L85 PathProgramCache]: Analyzing trace with hash 626296950, now seen corresponding path program 1 times [2022-12-06 04:13:48,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:48,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301221689] [2022-12-06 04:13:48,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:48,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:49,057 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 04:13:49,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:49,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301221689] [2022-12-06 04:13:49,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301221689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:49,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:49,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:13:49,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039592625] [2022-12-06 04:13:49,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:49,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:13:49,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:49,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:13:49,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:13:49,059 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-06 04:13:49,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 04:13:49,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:49,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-06 04:13:49,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:49,187 INFO L130 PetriNetUnfolder]: 346/652 cut-off events. [2022-12-06 04:13:49,187 INFO L131 PetriNetUnfolder]: For 503/507 co-relation queries the response was YES. [2022-12-06 04:13:49,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 652 events. 346/652 cut-off events. For 503/507 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3226 event pairs, 61 based on Foata normal form. 70/713 useless extension candidates. Maximal degree in co-relation 2109. Up to 278 conditions per place. [2022-12-06 04:13:49,191 INFO L137 encePairwiseOnDemand]: 15/21 looper letters, 47 selfloop transitions, 8 changer transitions 5/64 dead transitions. [2022-12-06 04:13:49,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 64 transitions, 383 flow [2022-12-06 04:13:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:13:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:13:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions. [2022-12-06 04:13:49,192 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2022-12-06 04:13:49,192 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 124 flow. Second operand 5 states and 69 transitions. [2022-12-06 04:13:49,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 64 transitions, 383 flow [2022-12-06 04:13:49,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 64 transitions, 373 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 04:13:49,196 INFO L231 Difference]: Finished difference. Result has 45 places, 31 transitions, 164 flow [2022-12-06 04:13:49,196 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2022-12-06 04:13:49,197 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2022-12-06 04:13:49,197 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:49,197 INFO L89 Accepts]: Start accepts. Operand has 45 places, 31 transitions, 164 flow [2022-12-06 04:13:49,197 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:49,197 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:49,198 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 31 transitions, 164 flow [2022-12-06 04:13:49,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 31 transitions, 164 flow [2022-12-06 04:13:49,211 INFO L130 PetriNetUnfolder]: 43/147 cut-off events. [2022-12-06 04:13:49,211 INFO L131 PetriNetUnfolder]: For 176/207 co-relation queries the response was YES. [2022-12-06 04:13:49,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 147 events. 43/147 cut-off events. For 176/207 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 646 event pairs, 14 based on Foata normal form. 8/148 useless extension candidates. Maximal degree in co-relation 448. Up to 66 conditions per place. [2022-12-06 04:13:49,212 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 31 transitions, 164 flow [2022-12-06 04:13:49,212 INFO L188 LiptonReduction]: Number of co-enabled transitions 276 [2022-12-06 04:13:49,216 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:13:49,216 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-06 04:13:49,217 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 164 flow [2022-12-06 04:13:49,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 04:13:49,217 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:13:49,217 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:13:49,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 04:13:49,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 04:13:49,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:13:49,217 INFO L85 PathProgramCache]: Analyzing trace with hash 205987880, now seen corresponding path program 1 times [2022-12-06 04:13:49,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:13:49,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574952111] [2022-12-06 04:13:49,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:13:49,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:13:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:13:49,408 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 04:13:49,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:13:49,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574952111] [2022-12-06 04:13:49,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574952111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:13:49,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:13:49,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 04:13:49,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447587061] [2022-12-06 04:13:49,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:13:49,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 04:13:49,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:13:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 04:13:49,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-06 04:13:49,410 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-06 04:13:49,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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 04:13:49,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:13:49,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-06 04:13:49,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:13:49,509 INFO L130 PetriNetUnfolder]: 220/431 cut-off events. [2022-12-06 04:13:49,509 INFO L131 PetriNetUnfolder]: For 567/571 co-relation queries the response was YES. [2022-12-06 04:13:49,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 431 events. 220/431 cut-off events. For 567/571 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1945 event pairs, 61 based on Foata normal form. 20/444 useless extension candidates. Maximal degree in co-relation 1508. Up to 160 conditions per place. [2022-12-06 04:13:49,511 INFO L137 encePairwiseOnDemand]: 15/21 looper letters, 35 selfloop transitions, 11 changer transitions 5/54 dead transitions. [2022-12-06 04:13:49,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 352 flow [2022-12-06 04:13:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 04:13:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 04:13:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions. [2022-12-06 04:13:49,513 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-06 04:13:49,513 INFO L175 Difference]: Start difference. First operand has 45 places, 31 transitions, 164 flow. Second operand 6 states and 63 transitions. [2022-12-06 04:13:49,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 352 flow [2022-12-06 04:13:49,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 313 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-12-06 04:13:49,517 INFO L231 Difference]: Finished difference. Result has 46 places, 30 transitions, 162 flow [2022-12-06 04:13:49,517 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=46, PETRI_TRANSITIONS=30} [2022-12-06 04:13:49,519 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2022-12-06 04:13:49,519 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:13:49,519 INFO L89 Accepts]: Start accepts. Operand has 46 places, 30 transitions, 162 flow [2022-12-06 04:13:49,521 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:13:49,521 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:13:49,521 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 30 transitions, 162 flow [2022-12-06 04:13:49,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 30 transitions, 162 flow [2022-12-06 04:13:49,528 INFO L130 PetriNetUnfolder]: 20/75 cut-off events. [2022-12-06 04:13:49,528 INFO L131 PetriNetUnfolder]: For 85/90 co-relation queries the response was YES. [2022-12-06 04:13:49,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 75 events. 20/75 cut-off events. For 85/90 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 237 event pairs, 5 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 210. Up to 24 conditions per place. [2022-12-06 04:13:49,528 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 30 transitions, 162 flow [2022-12-06 04:13:49,528 INFO L188 LiptonReduction]: Number of co-enabled transitions 190 [2022-12-06 04:13:49,531 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [431] L823-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork0_#res.offset_7| 0) (= |v_P2Thread1of1ForFork0_#res.base_7| 0) (= (+ v_~__unbuffered_cnt~0_50 1) v_~__unbuffered_cnt~0_49)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_50} OutVars{P2Thread1of1ForFork0_#res.base=|v_P2Thread1of1ForFork0_#res.base_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_49, P2Thread1of1ForFork0_#res.offset=|v_P2Thread1of1ForFork0_#res.offset_7|} AuxVars[] AssignedVars[P2Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork0_#res.offset] and [447] L845-3-->L848: Formula: (= (ite (= (ite (= 3 v_~__unbuffered_cnt~0_67) 1 0) 0) 0 1) v_~main$tmp_guard0~0_28) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_13|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_28} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0] [2022-12-06 04:13:49,546 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [440] L797-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_61 (+ v_~__unbuffered_cnt~0_62 1)) (= |v_P1Thread1of1ForFork2_#res#1.offset_11| 0) (= |v_P1Thread1of1ForFork2_#res#1.base_11| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{P1Thread1of1ForFork2_#res#1.base=|v_P1Thread1of1ForFork2_#res#1.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_61, P1Thread1of1ForFork2_#res#1.offset=|v_P1Thread1of1ForFork2_#res#1.offset_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork2_#res#1.base, ~__unbuffered_cnt~0, P1Thread1of1ForFork2_#res#1.offset] and [447] L845-3-->L848: Formula: (= (ite (= (ite (= 3 v_~__unbuffered_cnt~0_67) 1 0) 0) 0 1) v_~main$tmp_guard0~0_28) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_13|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_28} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0] [2022-12-06 04:13:49,571 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [415] L762-->P0EXIT: Formula: (and (= |v_P0Thread1of1ForFork1_#res.base_9| 0) (= (+ v_~__unbuffered_cnt~0_42 1) v_~__unbuffered_cnt~0_41) (= |v_P0Thread1of1ForFork1_#res.offset_9| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_42} OutVars{P0Thread1of1ForFork1_#res.offset=|v_P0Thread1of1ForFork1_#res.offset_9|, P0Thread1of1ForFork1_#res.base=|v_P0Thread1of1ForFork1_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_41} AuxVars[] AssignedVars[P0Thread1of1ForFork1_#res.offset, P0Thread1of1ForFork1_#res.base, ~__unbuffered_cnt~0] and [447] L845-3-->L848: Formula: (= (ite (= (ite (= 3 v_~__unbuffered_cnt~0_67) 1 0) 0) 0 1) v_~main$tmp_guard0~0_28) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_19|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_13|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_28} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0] Received shutdown request... [2022-12-06 04:28:20,699 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-06 04:28:20,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 04:28:20,703 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-3-2-3-2-2-2-2-2-3-2-3-2-2-1 context. [2022-12-06 04:28:20,704 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-06 04:28:20,704 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-06 04:28:20,704 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-06 04:28:20,704 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-06 04:28:20,704 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-06 04:28:20,705 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:20,711 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:28:20,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:28:20,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:28:20 BasicIcfg [2022-12-06 04:28:20,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:28:20,714 INFO L158 Benchmark]: Toolchain (without parser) took 881075.20ms. Allocated memory was 177.2MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 152.0MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-06 04:28:20,714 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 177.2MB. Free memory was 154.7MB in the beginning and 154.6MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:28:20,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.58ms. Allocated memory is still 177.2MB. Free memory was 152.0MB in the beginning and 124.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-06 04:28:20,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.09ms. Allocated memory is still 177.2MB. Free memory was 124.7MB in the beginning and 122.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:28:20,714 INFO L158 Benchmark]: Boogie Preprocessor took 21.81ms. Allocated memory is still 177.2MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:28:20,715 INFO L158 Benchmark]: RCFGBuilder took 587.66ms. Allocated memory is still 177.2MB. Free memory was 120.0MB in the beginning and 84.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-12-06 04:28:20,715 INFO L158 Benchmark]: TraceAbstraction took 879924.92ms. Allocated memory was 177.2MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 83.3MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-12-06 04:28:20,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 177.2MB. Free memory was 154.7MB in the beginning and 154.6MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 490.58ms. Allocated memory is still 177.2MB. Free memory was 152.0MB in the beginning and 124.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.09ms. Allocated memory is still 177.2MB. Free memory was 124.7MB in the beginning and 122.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.81ms. Allocated memory is still 177.2MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 587.66ms. Allocated memory is still 177.2MB. Free memory was 120.0MB in the beginning and 84.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 879924.92ms. Allocated memory was 177.2MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 83.3MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks [2022-12-06 04:28:20,720 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end Lipton Reduction Statistics: ReductionTime: 4.4s, 121 PlacesBefore, 38 PlacesAfterwards, 113 TransitionsBefore, 29 TransitionsAfterwards, 2290 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 42 TrivialYvCompositions, 44 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1761, independent: 1698, independent conditional: 1698, independent unconditional: 0, dependent: 63, dependent conditional: 63, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1761, independent: 1698, independent conditional: 0, independent unconditional: 1698, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1761, independent: 1698, independent conditional: 0, independent unconditional: 1698, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1761, independent: 1698, independent conditional: 0, independent unconditional: 1698, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1404, independent: 1358, independent conditional: 0, independent unconditional: 1358, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1404, independent: 1346, independent conditional: 0, independent unconditional: 1346, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 218, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1761, independent: 340, independent conditional: 0, independent unconditional: 340, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 1404, unknown conditional: 0, unknown unconditional: 1404] , Statistics on independence cache: Total cache size (in pairs): 2108, Positive cache size: 2062, Positive conditional cache size: 0, Positive unconditional cache size: 2062, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, 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, 23 TransitionsBefore, 23 TransitionsAfterwards, 266 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 154, independent: 128, independent conditional: 128, independent unconditional: 0, dependent: 26, dependent conditional: 26, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 154, independent: 128, independent conditional: 9, independent unconditional: 119, dependent: 26, dependent conditional: 3, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 154, independent: 128, independent conditional: 9, independent unconditional: 119, dependent: 26, dependent conditional: 3, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 154, independent: 128, independent conditional: 9, independent unconditional: 119, dependent: 26, dependent conditional: 3, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 132, independent: 112, independent conditional: 8, independent unconditional: 104, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 132, independent: 109, independent conditional: 0, independent unconditional: 109, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 55, dependent conditional: 8, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 154, independent: 16, independent conditional: 1, independent unconditional: 15, dependent: 6, dependent conditional: 1, dependent unconditional: 5, unknown: 132, unknown conditional: 10, unknown unconditional: 122] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 112, Positive conditional cache size: 8, Positive unconditional cache size: 104, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 33 PlacesBefore, 32 PlacesAfterwards, 23 TransitionsBefore, 22 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 267, independent: 222, independent conditional: 222, independent unconditional: 0, dependent: 45, dependent conditional: 45, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 267, independent: 222, independent conditional: 17, independent unconditional: 205, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 267, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 267, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 267, independent: 199, independent conditional: 0, independent unconditional: 199, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 140, Positive conditional cache size: 8, Positive unconditional cache size: 132, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 32 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 223, independent: 184, independent conditional: 184, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 223, independent: 184, independent conditional: 10, independent unconditional: 174, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 223, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 223, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 223, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 169, Positive conditional cache size: 8, Positive unconditional cache size: 161, Negative cache size: 29, Negative conditional cache size: 2, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 34 PlacesBefore, 34 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 91, independent: 76, independent conditional: 76, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 91, independent: 76, independent conditional: 14, independent unconditional: 62, dependent: 15, dependent conditional: 3, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 91, independent: 76, independent conditional: 14, independent unconditional: 62, dependent: 15, dependent conditional: 3, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 91, independent: 76, independent conditional: 14, independent unconditional: 62, dependent: 15, dependent conditional: 3, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 6, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 91, independent: 76, independent conditional: 14, independent unconditional: 62, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 169, Positive conditional cache size: 8, Positive unconditional cache size: 161, Negative cache size: 33, Negative conditional cache size: 4, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, independent: 51, independent conditional: 51, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 62, independent: 51, independent conditional: 6, independent unconditional: 45, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 62, independent: 51, independent conditional: 6, independent unconditional: 45, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62, independent: 51, independent conditional: 6, independent unconditional: 45, dependent: 11, dependent conditional: 3, dependent unconditional: 8, 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: 62, independent: 51, independent conditional: 6, independent unconditional: 45, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 169, Positive conditional cache size: 8, Positive unconditional cache size: 161, Negative cache size: 33, Negative conditional cache size: 4, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 41 PlacesBefore, 41 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 50, independent: 41, independent conditional: 41, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 50, independent: 41, independent conditional: 13, independent unconditional: 28, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 50, independent: 41, independent conditional: 1, independent unconditional: 40, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 50, independent: 41, independent conditional: 1, independent unconditional: 40, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, independent: 40, independent conditional: 1, independent unconditional: 39, dependent: 8, dependent conditional: 3, dependent unconditional: 5, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 204, Positive cache size: 170, Positive conditional cache size: 8, Positive unconditional cache size: 162, Negative cache size: 34, Negative conditional cache size: 4, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 45 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 58, independent: 49, independent conditional: 49, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 58, independent: 49, independent conditional: 21, independent unconditional: 28, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60, independent: 49, independent conditional: 3, independent unconditional: 46, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, independent: 49, independent conditional: 3, independent unconditional: 46, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, independent: 9, independent conditional: 2, independent unconditional: 7, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, independent: 40, independent conditional: 1, independent unconditional: 39, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 10, unknown conditional: 2, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 179, Positive conditional cache size: 10, Positive unconditional cache size: 169, Negative cache size: 35, Negative conditional cache size: 4, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 22, Maximal queried relation: 1 - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-3-2-3-2-2-2-2-2-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-3-2-3-2-2-2-2-2-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-3-2-3-2-2-2-2-2-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 841]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-3-2-3-2-2-2-2-2-3-2-3-2-2-1 context. - TimeoutResultAtElement [Line: 843]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-3-2-3-2-2-2-2-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 6 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: 879.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 13 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=7, InterpolantAutomatonStates: 32, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 752 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown