/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:17:25,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:17:25,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:17:25,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:17:25,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:17:25,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:17:25,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:17:25,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:17:25,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:17:25,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:17:25,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:17:25,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:17:25,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:17:25,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:17:25,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:17:25,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:17:25,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:17:25,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:17:25,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:17:25,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:17:25,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:17:25,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:17:25,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:17:25,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:17:25,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:17:25,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:17:25,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:17:25,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:17:25,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:17:25,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:17:25,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:17:25,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:17:25,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:17:25,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:17:25,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:17:25,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:17:25,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:17:25,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:17:25,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:17:25,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:17:25,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:17:25,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 03:17:25,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:17:25,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:17:25,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:17:25,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:17:25,945 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:17:25,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:17:25,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:17:25,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:17:25,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:17:25,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:17:25,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:17:25,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:17:25,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:17:25,946 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:17:25,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:17:25,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:17:25,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:17:25,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:17:25,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:17:25,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:17:25,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:17:25,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:17:25,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:17:25,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:17:25,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:17:25,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:17:25,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:17:25,948 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:17:25,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:17:26,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:17:26,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:17:26,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:17:26,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:17:26,286 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:17:26,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2022-12-13 03:17:27,547 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:17:27,773 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:17:27,773 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2022-12-13 03:17:27,786 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca043a9f/18dedd062335412d883d9fbb123b40a7/FLAG7c861ea55 [2022-12-13 03:17:27,802 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca043a9f/18dedd062335412d883d9fbb123b40a7 [2022-12-13 03:17:27,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:17:27,805 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:17:27,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:17:27,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:17:27,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:17:27,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:17:27" (1/1) ... [2022-12-13 03:17:27,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fba3488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:27, skipping insertion in model container [2022-12-13 03:17:27,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:17:27" (1/1) ... [2022-12-13 03:17:27,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:17:27,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:17:27,988 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/safe026_tso.i[945,958] [2022-12-13 03:17:28,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:17:28,156 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:17:28,168 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/safe026_tso.i[945,958] [2022-12-13 03:17:28,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,195 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:17:28,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:17:28,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:17:28,233 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:17:28,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28 WrapperNode [2022-12-13 03:17:28,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:17:28,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:17:28,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:17:28,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:17:28,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,299 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-13 03:17:28,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:17:28,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:17:28,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:17:28,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:17:28,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:17:28,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:17:28,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:17:28,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:17:28,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (1/1) ... [2022-12-13 03:17:28,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:17:28,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:17:28,375 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) [2022-12-13 03:17:28,394 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 [2022-12-13 03:17:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:17:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:17:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:17:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:17:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:17:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:17:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:17:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:17:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:17:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 03:17:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 03:17:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:17:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:17:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:17:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:17:28,427 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:17:28,588 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:17:28,589 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:17:28,753 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:17:28,759 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:17:28,759 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:17:28,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:17:28 BoogieIcfgContainer [2022-12-13 03:17:28,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:17:28,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:17:28,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:17:28,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:17:28,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:17:27" (1/3) ... [2022-12-13 03:17:28,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d7ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:17:28, skipping insertion in model container [2022-12-13 03:17:28,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:17:28" (2/3) ... [2022-12-13 03:17:28,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d7ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:17:28, skipping insertion in model container [2022-12-13 03:17:28,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:17:28" (3/3) ... [2022-12-13 03:17:28,769 INFO L112 eAbstractionObserver]: Analyzing ICFG safe026_tso.i [2022-12-13 03:17:28,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:17:28,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:17:28,789 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:17:28,869 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:17:28,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2022-12-13 03:17:28,950 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-13 03:17:28,951 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:17:28,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-13 03:17:28,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2022-12-13 03:17:28,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2022-12-13 03:17:28,963 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:28,985 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 68 transitions, 145 flow [2022-12-13 03:17:28,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 68 transitions, 145 flow [2022-12-13 03:17:29,011 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-13 03:17:29,011 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:17:29,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 35 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-12-13 03:17:29,014 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 68 transitions, 145 flow [2022-12-13 03:17:29,014 INFO L226 LiptonReduction]: Number of co-enabled transitions 974 [2022-12-13 03:17:31,266 INFO L241 LiptonReduction]: Total number of compositions: 52 [2022-12-13 03:17:31,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:17:31,296 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;@40a9c86f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:17:31,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 03:17:31,303 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-13 03:17:31,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:17:31,303 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:31,304 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:31,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:31,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2077100784, now seen corresponding path program 1 times [2022-12-13 03:17:31,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:31,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339170035] [2022-12-13 03:17:31,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:31,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:31,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:31,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339170035] [2022-12-13 03:17:31,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339170035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:31,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:31,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:17:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273170853] [2022-12-13 03:17:31,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:31,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:17:31,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:31,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:17:31,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:17:31,764 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2022-12-13 03:17:31,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-13 03:17:31,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:31,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2022-12-13 03:17:31,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:32,003 INFO L130 PetriNetUnfolder]: 947/1604 cut-off events. [2022-12-13 03:17:32,003 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 03:17:32,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3161 conditions, 1604 events. 947/1604 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8576 event pairs, 300 based on Foata normal form. 62/1302 useless extension candidates. Maximal degree in co-relation 3150. Up to 994 conditions per place. [2022-12-13 03:17:32,019 INFO L137 encePairwiseOnDemand]: 19/26 looper letters, 28 selfloop transitions, 5 changer transitions 0/39 dead transitions. [2022-12-13 03:17:32,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 156 flow [2022-12-13 03:17:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:17:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:17:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-13 03:17:32,031 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2022-12-13 03:17:32,034 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2022-12-13 03:17:32,035 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 39 transitions, 156 flow [2022-12-13 03:17:32,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 39 transitions, 156 flow [2022-12-13 03:17:32,055 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:32,056 INFO L89 Accepts]: Start accepts. Operand has 37 places, 39 transitions, 156 flow [2022-12-13 03:17:32,059 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:32,059 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:32,060 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 39 transitions, 156 flow [2022-12-13 03:17:32,066 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 39 transitions, 156 flow [2022-12-13 03:17:32,066 INFO L226 LiptonReduction]: Number of co-enabled transitions 250 [2022-12-13 03:17:32,198 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:17:32,200 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 145 [2022-12-13 03:17:32,200 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 39 transitions, 156 flow [2022-12-13 03:17:32,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-13 03:17:32,200 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:32,200 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:32,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:17:32,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash -34385664, now seen corresponding path program 1 times [2022-12-13 03:17:32,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:32,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219351209] [2022-12-13 03:17:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:32,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:32,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:32,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:32,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219351209] [2022-12-13 03:17:32,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219351209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:32,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:32,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:17:32,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758651021] [2022-12-13 03:17:32,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:32,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:17:32,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:32,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:17:32,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:17:32,349 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2022-12-13 03:17:32,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 39 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 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) [2022-12-13 03:17:32,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:32,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2022-12-13 03:17:32,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:32,518 INFO L130 PetriNetUnfolder]: 883/1545 cut-off events. [2022-12-13 03:17:32,519 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-12-13 03:17:32,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4409 conditions, 1545 events. 883/1545 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8515 event pairs, 107 based on Foata normal form. 30/1225 useless extension candidates. Maximal degree in co-relation 4395. Up to 921 conditions per place. [2022-12-13 03:17:32,531 INFO L137 encePairwiseOnDemand]: 19/26 looper letters, 39 selfloop transitions, 6 changer transitions 0/51 dead transitions. [2022-12-13 03:17:32,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 294 flow [2022-12-13 03:17:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:17:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:17:32,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2022-12-13 03:17:32,535 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2022-12-13 03:17:32,536 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2022-12-13 03:17:32,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 51 transitions, 294 flow [2022-12-13 03:17:32,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 51 transitions, 294 flow [2022-12-13 03:17:32,557 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:32,558 INFO L89 Accepts]: Start accepts. Operand has 40 places, 51 transitions, 294 flow [2022-12-13 03:17:32,559 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:32,559 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:32,559 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 51 transitions, 294 flow [2022-12-13 03:17:32,561 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 51 transitions, 294 flow [2022-12-13 03:17:32,562 INFO L226 LiptonReduction]: Number of co-enabled transitions 282 [2022-12-13 03:17:32,656 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:17:32,657 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 100 [2022-12-13 03:17:32,658 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 51 transitions, 298 flow [2022-12-13 03:17:32,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 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) [2022-12-13 03:17:32,659 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:32,659 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:32,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:17:32,659 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:32,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:32,660 INFO L85 PathProgramCache]: Analyzing trace with hash -34385044, now seen corresponding path program 1 times [2022-12-13 03:17:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:32,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028271999] [2022-12-13 03:17:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:32,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:32,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:32,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028271999] [2022-12-13 03:17:32,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028271999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:32,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:32,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:17:32,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398249075] [2022-12-13 03:17:32,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:32,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:17:32,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:32,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:17:32,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:17:32,778 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-13 03:17:32,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 51 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-12-13 03:17:32,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:32,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-13 03:17:32,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:33,018 INFO L130 PetriNetUnfolder]: 1036/1934 cut-off events. [2022-12-13 03:17:33,018 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-12-13 03:17:33,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7083 conditions, 1934 events. 1036/1934 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 12415 event pairs, 89 based on Foata normal form. 154/1575 useless extension candidates. Maximal degree in co-relation 7066. Up to 1174 conditions per place. [2022-12-13 03:17:33,032 INFO L137 encePairwiseOnDemand]: 21/27 looper letters, 42 selfloop transitions, 5 changer transitions 22/77 dead transitions. [2022-12-13 03:17:33,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 77 transitions, 594 flow [2022-12-13 03:17:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:17:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:17:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2022-12-13 03:17:33,035 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2022-12-13 03:17:33,037 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2022-12-13 03:17:33,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 77 transitions, 594 flow [2022-12-13 03:17:33,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 55 transitions, 418 flow [2022-12-13 03:17:33,061 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:33,061 INFO L89 Accepts]: Start accepts. Operand has 43 places, 55 transitions, 418 flow [2022-12-13 03:17:33,062 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:33,062 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:33,063 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 55 transitions, 418 flow [2022-12-13 03:17:33,064 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 55 transitions, 418 flow [2022-12-13 03:17:33,064 INFO L226 LiptonReduction]: Number of co-enabled transitions 264 [2022-12-13 03:17:33,067 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:33,068 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-13 03:17:33,068 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 55 transitions, 418 flow [2022-12-13 03:17:33,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-12-13 03:17:33,068 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:33,068 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:33,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:17:33,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:33,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1065955492, now seen corresponding path program 1 times [2022-12-13 03:17:33,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:33,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117869655] [2022-12-13 03:17:33,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:33,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:33,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:33,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117869655] [2022-12-13 03:17:33,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117869655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:33,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:33,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:17:33,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111138020] [2022-12-13 03:17:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:33,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:17:33,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:33,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:17:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:17:33,154 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 26 [2022-12-13 03:17:33,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 55 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-12-13 03:17:33,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:33,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 26 [2022-12-13 03:17:33,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:33,346 INFO L130 PetriNetUnfolder]: 1094/1787 cut-off events. [2022-12-13 03:17:33,346 INFO L131 PetriNetUnfolder]: For 1549/1591 co-relation queries the response was YES. [2022-12-13 03:17:33,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7791 conditions, 1787 events. 1094/1787 cut-off events. For 1549/1591 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 9469 event pairs, 188 based on Foata normal form. 27/1432 useless extension candidates. Maximal degree in co-relation 7771. Up to 1604 conditions per place. [2022-12-13 03:17:33,360 INFO L137 encePairwiseOnDemand]: 14/26 looper letters, 57 selfloop transitions, 24 changer transitions 0/89 dead transitions. [2022-12-13 03:17:33,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 89 transitions, 843 flow [2022-12-13 03:17:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:17:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:17:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-13 03:17:33,362 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2022-12-13 03:17:33,362 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2022-12-13 03:17:33,362 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 89 transitions, 843 flow [2022-12-13 03:17:33,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 89 transitions, 843 flow [2022-12-13 03:17:33,387 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:33,387 INFO L89 Accepts]: Start accepts. Operand has 45 places, 89 transitions, 843 flow [2022-12-13 03:17:33,388 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:33,388 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:33,388 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 89 transitions, 843 flow [2022-12-13 03:17:33,391 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 89 transitions, 843 flow [2022-12-13 03:17:33,391 INFO L226 LiptonReduction]: Number of co-enabled transitions 200 [2022-12-13 03:17:33,393 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:33,394 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-13 03:17:33,394 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 89 transitions, 843 flow [2022-12-13 03:17:33,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-12-13 03:17:33,394 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:33,394 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:33,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:17:33,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:33,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:33,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1066528243, now seen corresponding path program 1 times [2022-12-13 03:17:33,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:33,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553222008] [2022-12-13 03:17:33,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:33,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:33,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:33,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553222008] [2022-12-13 03:17:33,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553222008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:33,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:33,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:17:33,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206948628] [2022-12-13 03:17:33,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:33,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:17:33,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:33,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:17:33,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:17:33,479 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 26 [2022-12-13 03:17:33,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 89 transitions, 843 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-12-13 03:17:33,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:33,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 26 [2022-12-13 03:17:33,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:33,629 INFO L130 PetriNetUnfolder]: 687/1237 cut-off events. [2022-12-13 03:17:33,630 INFO L131 PetriNetUnfolder]: For 1629/1772 co-relation queries the response was YES. [2022-12-13 03:17:33,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6587 conditions, 1237 events. 687/1237 cut-off events. For 1629/1772 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6795 event pairs, 42 based on Foata normal form. 140/1119 useless extension candidates. Maximal degree in co-relation 6564. Up to 1095 conditions per place. [2022-12-13 03:17:33,648 INFO L137 encePairwiseOnDemand]: 14/26 looper letters, 53 selfloop transitions, 45 changer transitions 6/112 dead transitions. [2022-12-13 03:17:33,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 112 transitions, 1269 flow [2022-12-13 03:17:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:17:33,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:17:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2022-12-13 03:17:33,652 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7019230769230769 [2022-12-13 03:17:33,654 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2022-12-13 03:17:33,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 112 transitions, 1269 flow [2022-12-13 03:17:33,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 106 transitions, 1197 flow [2022-12-13 03:17:33,673 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:33,673 INFO L89 Accepts]: Start accepts. Operand has 48 places, 106 transitions, 1197 flow [2022-12-13 03:17:33,674 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:33,675 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:33,675 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 106 transitions, 1197 flow [2022-12-13 03:17:33,678 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 106 transitions, 1197 flow [2022-12-13 03:17:33,678 INFO L226 LiptonReduction]: Number of co-enabled transitions 196 [2022-12-13 03:17:33,680 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:33,680 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-13 03:17:33,680 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 106 transitions, 1197 flow [2022-12-13 03:17:33,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-12-13 03:17:33,681 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:33,681 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:33,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 03:17:33,681 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:33,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1563483852, now seen corresponding path program 1 times [2022-12-13 03:17:33,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:33,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740824302] [2022-12-13 03:17:33,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:33,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:33,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:33,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740824302] [2022-12-13 03:17:33,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740824302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:33,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:33,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:17:33,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429929288] [2022-12-13 03:17:33,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:33,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:17:33,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:33,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:17:33,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:17:33,789 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 26 [2022-12-13 03:17:33,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 106 transitions, 1197 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2022-12-13 03:17:33,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:33,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 26 [2022-12-13 03:17:33,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:33,945 INFO L130 PetriNetUnfolder]: 481/878 cut-off events. [2022-12-13 03:17:33,945 INFO L131 PetriNetUnfolder]: For 1760/1913 co-relation queries the response was YES. [2022-12-13 03:17:33,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5451 conditions, 878 events. 481/878 cut-off events. For 1760/1913 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4553 event pairs, 6 based on Foata normal form. 169/860 useless extension candidates. Maximal degree in co-relation 5425. Up to 763 conditions per place. [2022-12-13 03:17:33,951 INFO L137 encePairwiseOnDemand]: 14/26 looper letters, 39 selfloop transitions, 52 changer transitions 5/104 dead transitions. [2022-12-13 03:17:33,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 1365 flow [2022-12-13 03:17:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:17:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:17:33,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2022-12-13 03:17:33,953 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5846153846153846 [2022-12-13 03:17:33,956 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 16 predicate places. [2022-12-13 03:17:33,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 104 transitions, 1365 flow [2022-12-13 03:17:33,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 99 transitions, 1295 flow [2022-12-13 03:17:33,969 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:33,969 INFO L89 Accepts]: Start accepts. Operand has 51 places, 99 transitions, 1295 flow [2022-12-13 03:17:33,971 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:33,971 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:33,972 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 99 transitions, 1295 flow [2022-12-13 03:17:33,974 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 99 transitions, 1295 flow [2022-12-13 03:17:33,974 INFO L226 LiptonReduction]: Number of co-enabled transitions 190 [2022-12-13 03:17:33,975 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:33,976 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-13 03:17:33,976 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 99 transitions, 1295 flow [2022-12-13 03:17:33,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2022-12-13 03:17:33,977 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:33,977 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:33,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 03:17:33,978 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash 60330122, now seen corresponding path program 1 times [2022-12-13 03:17:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:33,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857005718] [2022-12-13 03:17:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:34,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:34,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857005718] [2022-12-13 03:17:34,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857005718] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:34,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:34,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:17:34,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355647775] [2022-12-13 03:17:34,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:34,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:17:34,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:34,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:17:34,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:17:34,102 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2022-12-13 03:17:34,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 99 transitions, 1295 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-12-13 03:17:34,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:34,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2022-12-13 03:17:34,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:34,243 INFO L130 PetriNetUnfolder]: 543/1006 cut-off events. [2022-12-13 03:17:34,244 INFO L131 PetriNetUnfolder]: For 2036/2103 co-relation queries the response was YES. [2022-12-13 03:17:34,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6942 conditions, 1006 events. 543/1006 cut-off events. For 2036/2103 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5557 event pairs, 0 based on Foata normal form. 38/816 useless extension candidates. Maximal degree in co-relation 6913. Up to 883 conditions per place. [2022-12-13 03:17:34,248 INFO L137 encePairwiseOnDemand]: 17/24 looper letters, 47 selfloop transitions, 8 changer transitions 77/142 dead transitions. [2022-12-13 03:17:34,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 142 transitions, 2155 flow [2022-12-13 03:17:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:17:34,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:17:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2022-12-13 03:17:34,250 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.625 [2022-12-13 03:17:34,251 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2022-12-13 03:17:34,251 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 142 transitions, 2155 flow [2022-12-13 03:17:34,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 65 transitions, 967 flow [2022-12-13 03:17:34,262 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:17:34,262 INFO L89 Accepts]: Start accepts. Operand has 52 places, 65 transitions, 967 flow [2022-12-13 03:17:34,263 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:17:34,263 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:34,264 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 65 transitions, 967 flow [2022-12-13 03:17:34,265 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 65 transitions, 967 flow [2022-12-13 03:17:34,265 INFO L226 LiptonReduction]: Number of co-enabled transitions 66 [2022-12-13 03:17:34,310 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:17:34,311 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 49 [2022-12-13 03:17:34,311 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 65 transitions, 967 flow [2022-12-13 03:17:34,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-12-13 03:17:34,311 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:17:34,312 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:34,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 03:17:34,312 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 03:17:34,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:17:34,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1795682267, now seen corresponding path program 1 times [2022-12-13 03:17:34,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:17:34,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715047071] [2022-12-13 03:17:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:17:34,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:17:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:17:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:17:34,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:17:34,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715047071] [2022-12-13 03:17:34,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715047071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:17:34,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:17:34,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:17:34,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282330997] [2022-12-13 03:17:34,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:17:34,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:17:34,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:17:34,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:17:34,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:17:34,430 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2022-12-13 03:17:34,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 65 transitions, 967 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-13 03:17:34,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:17:34,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2022-12-13 03:17:34,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:17:34,492 INFO L130 PetriNetUnfolder]: 130/245 cut-off events. [2022-12-13 03:17:34,493 INFO L131 PetriNetUnfolder]: For 682/683 co-relation queries the response was YES. [2022-12-13 03:17:34,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 245 events. 130/245 cut-off events. For 682/683 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 885 event pairs, 0 based on Foata normal form. 28/211 useless extension candidates. Maximal degree in co-relation 1871. Up to 216 conditions per place. [2022-12-13 03:17:34,493 INFO L137 encePairwiseOnDemand]: 17/24 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2022-12-13 03:17:34,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 66 transitions, 1095 flow [2022-12-13 03:17:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:17:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:17:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 52 transitions. [2022-12-13 03:17:34,495 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2022-12-13 03:17:34,496 INFO L295 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2022-12-13 03:17:34,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 66 transitions, 1095 flow [2022-12-13 03:17:34,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:34,499 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:17:34,499 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:34,499 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:34,499 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 03:17:34,500 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:17:34,502 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-13 03:17:34,506 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 03:17:34,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-13 03:17:34,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 03:17:34,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 03:17:34,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 03:17:34,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 03:17:34,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 03:17:34,509 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:17:34,511 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:17:34,512 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:17:34,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:17:34 BasicIcfg [2022-12-13 03:17:34,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:17:34,516 INFO L158 Benchmark]: Toolchain (without parser) took 6711.60ms. Allocated memory was 186.6MB in the beginning and 302.0MB in the end (delta: 115.3MB). Free memory was 143.9MB in the beginning and 240.8MB in the end (delta: -96.9MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB. [2022-12-13 03:17:34,517 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:17:34,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.99ms. Allocated memory is still 186.6MB. Free memory was 143.4MB in the beginning and 120.7MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-13 03:17:34,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.59ms. Allocated memory is still 186.6MB. Free memory was 120.7MB in the beginning and 118.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:17:34,517 INFO L158 Benchmark]: Boogie Preprocessor took 42.07ms. Allocated memory is still 186.6MB. Free memory was 118.8MB in the beginning and 117.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:17:34,517 INFO L158 Benchmark]: RCFGBuilder took 417.88ms. Allocated memory is still 186.6MB. Free memory was 117.2MB in the beginning and 103.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-13 03:17:34,518 INFO L158 Benchmark]: TraceAbstraction took 5752.43ms. Allocated memory was 186.6MB in the beginning and 302.0MB in the end (delta: 115.3MB). Free memory was 102.0MB in the beginning and 240.8MB in the end (delta: -138.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:17:34,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 428.99ms. Allocated memory is still 186.6MB. Free memory was 143.4MB in the beginning and 120.7MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.59ms. Allocated memory is still 186.6MB. Free memory was 120.7MB in the beginning and 118.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.07ms. Allocated memory is still 186.6MB. Free memory was 118.8MB in the beginning and 117.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 417.88ms. Allocated memory is still 186.6MB. Free memory was 117.2MB in the beginning and 103.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5752.43ms. Allocated memory was 186.6MB in the beginning and 302.0MB in the end (delta: 115.3MB). Free memory was 102.0MB in the beginning and 240.8MB in the end (delta: -138.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 77 PlacesBefore, 35 PlacesAfterwards, 68 TransitionsBefore, 26 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 934, independent: 880, independent conditional: 880, independent unconditional: 0, dependent: 54, dependent conditional: 54, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 934, independent: 880, independent conditional: 0, independent unconditional: 880, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 934, independent: 880, independent conditional: 0, independent unconditional: 880, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 934, independent: 880, independent conditional: 0, independent unconditional: 880, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 741, independent: 708, independent conditional: 0, independent unconditional: 708, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 741, independent: 667, independent conditional: 0, independent unconditional: 667, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 181, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 934, independent: 172, independent conditional: 0, independent unconditional: 172, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 741, unknown conditional: 0, unknown unconditional: 741] , Statistics on independence cache: Total cache size (in pairs): 1086, Positive cache size: 1053, Positive conditional cache size: 0, Positive unconditional cache size: 1053, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, 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, 37 PlacesBefore, 37 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 7, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, 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, 40 PlacesBefore, 40 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 43 PlacesBefore, 43 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 45 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 48 PlacesBefore, 48 PlacesAfterwards, 106 TransitionsBefore, 106 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 51 PlacesBefore, 51 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 190 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 52 PlacesBefore, 52 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 10, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 9, Positive conditional cache size: 3, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, 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, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 9, Positive conditional cache size: 3, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 409 IncrementalHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 11 mSDtfsCounter, 409 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1295occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 03:17:34,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...