./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:07:04,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:07:04,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:07:04,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:07:04,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:07:04,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:07:04,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:07:04,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:07:04,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:07:04,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:07:04,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:07:04,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:07:04,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:07:04,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:07:04,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:07:04,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:07:04,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:07:04,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:07:04,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:07:04,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:07:04,681 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:07:04,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:07:04,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:07:04,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:07:04,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:07:04,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:07:04,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:07:04,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:07:04,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:07:04,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:07:04,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:07:04,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:07:04,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:07:04,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:07:04,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:07:04,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:07:04,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:07:04,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:07:04,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:07:04,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:07:04,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:07:04,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:07:04,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 21:07:04,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:07:04,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:07:04,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:07:04,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:07:04,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:07:04,730 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:07:04,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:07:04,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:07:04,731 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:07:04,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:07:04,732 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 21:07:04,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:07:04,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 21:07:04,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:07:04,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:07:04,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:07:04,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:07:04,733 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 21:07:04,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:07:04,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:07:04,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:07:04,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:07:04,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:07:04,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:07:04,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:07:04,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:07:04,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:07:04,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:07:04,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:07:04,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:07:04,736 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:07:04,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:07:04,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:07:04,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 [2022-07-19 21:07:04,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:07:04,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:07:04,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:07:04,967 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:07:04,968 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:07:04,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-07-19 21:07:05,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330bf89d8/b43b8033dc99413da78a738ff225c5df/FLAG4217be45b [2022-07-19 21:07:05,453 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:07:05,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-07-19 21:07:05,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330bf89d8/b43b8033dc99413da78a738ff225c5df/FLAG4217be45b [2022-07-19 21:07:05,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330bf89d8/b43b8033dc99413da78a738ff225c5df [2022-07-19 21:07:05,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:07:05,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:07:05,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:07:05,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:07:05,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:07:05,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:07:05" (1/1) ... [2022-07-19 21:07:05,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f45c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:05, skipping insertion in model container [2022-07-19 21:07:05,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:07:05" (1/1) ... [2022-07-19 21:07:05,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:07:05,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:07:05,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-07-19 21:07:05,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:07:05,921 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:07:05,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-07-19 21:07:05,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:07:06,036 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:07:06,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06 WrapperNode [2022-07-19 21:07:06,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:07:06,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:07:06,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:07:06,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:07:06,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,119 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2022-07-19 21:07:06,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:07:06,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:07:06,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:07:06,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:07:06,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:07:06,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:07:06,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:07:06,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:07:06,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (1/1) ... [2022-07-19 21:07:06,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:07:06,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:07:06,216 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) [2022-07-19 21:07:06,262 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 [2022-07-19 21:07:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:07:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-19 21:07:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:07:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:07:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:07:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-07-19 21:07:06,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-07-19 21:07:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-07-19 21:07:06,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-07-19 21:07:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-07-19 21:07:06,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-07-19 21:07:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-07-19 21:07:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-07-19 21:07:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:07:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-19 21:07:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:07:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:07:06,288 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-19 21:07:06,386 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:07:06,388 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:07:06,869 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:07:07,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:07:07,125 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:07:07,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:07:07 BoogieIcfgContainer [2022-07-19 21:07:07,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:07:07,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:07:07,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:07:07,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:07:07,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:07:05" (1/3) ... [2022-07-19 21:07:07,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4275e42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:07:07, skipping insertion in model container [2022-07-19 21:07:07,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:07:06" (2/3) ... [2022-07-19 21:07:07,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4275e42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:07:07, skipping insertion in model container [2022-07-19 21:07:07,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:07:07" (3/3) ... [2022-07-19 21:07:07,133 INFO L111 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-07-19 21:07:07,137 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-19 21:07:07,143 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:07:07,143 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 21:07:07,144 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-19 21:07:07,207 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-19 21:07:07,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-07-19 21:07:07,293 INFO L129 PetriNetUnfolder]: 2/135 cut-off events. [2022-07-19 21:07:07,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:07:07,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-07-19 21:07:07,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-07-19 21:07:07,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-07-19 21:07:07,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:07:07,324 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1242941e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@623950d7 [2022-07-19 21:07:07,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-19 21:07:07,339 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2022-07-19 21:07:07,339 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:07:07,339 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:07,340 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:07,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:07,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1261973162, now seen corresponding path program 1 times [2022-07-19 21:07:07,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:07,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105371164] [2022-07-19 21:07:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:07,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:07,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:07,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105371164] [2022-07-19 21:07:07,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105371164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:07,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:07,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 21:07:07,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265569418] [2022-07-19 21:07:07,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:07,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 21:07:07,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:07,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 21:07:07,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 21:07:07,637 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2022-07-19 21:07:07,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2022-07-19 21:07:07,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:07,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2022-07-19 21:07:07,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:07,873 INFO L129 PetriNetUnfolder]: 162/623 cut-off events. [2022-07-19 21:07:07,873 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-07-19 21:07:07,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 623 events. 162/623 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3460 event pairs, 132 based on Foata normal form. 46/631 useless extension candidates. Maximal degree in co-relation 871. Up to 191 conditions per place. [2022-07-19 21:07:07,884 INFO L132 encePairwiseOnDemand]: 134/139 looper letters, 18 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-07-19 21:07:07,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 139 transitions, 339 flow [2022-07-19 21:07:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 21:07:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-19 21:07:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-07-19 21:07:07,901 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2022-07-19 21:07:07,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-07-19 21:07:07,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-07-19 21:07:07,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:07,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-07-19 21:07:07,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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) [2022-07-19 21:07:07,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2022-07-19 21:07:07,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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) [2022-07-19 21:07:07,920 INFO L186 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 394 transitions. [2022-07-19 21:07:07,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 139 transitions, 339 flow [2022-07-19 21:07:07,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-19 21:07:07,926 INFO L242 Difference]: Finished difference. Result has 142 places, 131 transitions, 274 flow [2022-07-19 21:07:07,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-07-19 21:07:07,931 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-07-19 21:07:07,932 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 274 flow [2022-07-19 21:07:07,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2022-07-19 21:07:07,932 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:07,932 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:07,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:07:07,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:07,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:07,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1699652514, now seen corresponding path program 1 times [2022-07-19 21:07:07,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:07,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442581375] [2022-07-19 21:07:07,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:07,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:08,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442581375] [2022-07-19 21:07:08,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442581375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:08,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:08,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:07:08,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261048682] [2022-07-19 21:07:08,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:08,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:07:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:08,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:07:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:07:08,188 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-07-19 21:07:08,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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) [2022-07-19 21:07:08,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:08,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-07-19 21:07:08,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:13,079 INFO L129 PetriNetUnfolder]: 19707/42016 cut-off events. [2022-07-19 21:07:13,079 INFO L130 PetriNetUnfolder]: For 1610/1610 co-relation queries the response was YES. [2022-07-19 21:07:13,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70690 conditions, 42016 events. 19707/42016 cut-off events. For 1610/1610 co-relation queries the response was YES. Maximal size of possible extension queue 1831. Compared 452738 event pairs, 4318 based on Foata normal form. 0/41093 useless extension candidates. Maximal degree in co-relation 70628. Up to 10076 conditions per place. [2022-07-19 21:07:13,456 INFO L132 encePairwiseOnDemand]: 122/139 looper letters, 37 selfloop transitions, 13 changer transitions 102/239 dead transitions. [2022-07-19 21:07:13,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 239 transitions, 786 flow [2022-07-19 21:07:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 21:07:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-19 21:07:13,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1077 transitions. [2022-07-19 21:07:13,460 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8609112709832134 [2022-07-19 21:07:13,460 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1077 transitions. [2022-07-19 21:07:13,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1077 transitions. [2022-07-19 21:07:13,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:13,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1077 transitions. [2022-07-19 21:07:13,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.66666666666667) internal successors, (1077), 9 states have internal predecessors, (1077), 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) [2022-07-19 21:07:13,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-07-19 21:07:13,466 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-07-19 21:07:13,466 INFO L186 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 9 states and 1077 transitions. [2022-07-19 21:07:13,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 239 transitions, 786 flow [2022-07-19 21:07:13,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 239 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-19 21:07:13,473 INFO L242 Difference]: Finished difference. Result has 156 places, 125 transitions, 388 flow [2022-07-19 21:07:13,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=156, PETRI_TRANSITIONS=125} [2022-07-19 21:07:13,474 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 10 predicate places. [2022-07-19 21:07:13,475 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 125 transitions, 388 flow [2022-07-19 21:07:13,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 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) [2022-07-19 21:07:13,475 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:13,476 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:13,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 21:07:13,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:13,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:13,477 INFO L85 PathProgramCache]: Analyzing trace with hash -699640547, now seen corresponding path program 1 times [2022-07-19 21:07:13,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:13,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564856073] [2022-07-19 21:07:13,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:13,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:13,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:13,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:13,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564856073] [2022-07-19 21:07:13,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564856073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:13,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:13,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 21:07:13,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829700354] [2022-07-19 21:07:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:13,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 21:07:13,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 21:07:13,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 21:07:13,721 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-07-19 21:07:13,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 125 transitions, 388 flow. Second operand has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 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) [2022-07-19 21:07:13,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:13,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-07-19 21:07:13,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:16,765 INFO L129 PetriNetUnfolder]: 13238/22639 cut-off events. [2022-07-19 21:07:16,765 INFO L130 PetriNetUnfolder]: For 37987/38059 co-relation queries the response was YES. [2022-07-19 21:07:16,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68802 conditions, 22639 events. 13238/22639 cut-off events. For 37987/38059 co-relation queries the response was YES. Maximal size of possible extension queue 1133. Compared 183609 event pairs, 2330 based on Foata normal form. 532/22672 useless extension candidates. Maximal degree in co-relation 68724. Up to 5647 conditions per place. [2022-07-19 21:07:16,915 INFO L132 encePairwiseOnDemand]: 127/139 looper letters, 58 selfloop transitions, 9 changer transitions 130/284 dead transitions. [2022-07-19 21:07:16,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 284 transitions, 1674 flow [2022-07-19 21:07:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 21:07:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-19 21:07:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1524 transitions. [2022-07-19 21:07:16,919 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8433868289983398 [2022-07-19 21:07:16,919 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1524 transitions. [2022-07-19 21:07:16,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1524 transitions. [2022-07-19 21:07:16,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:16,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1524 transitions. [2022-07-19 21:07:16,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.23076923076923) internal successors, (1524), 13 states have internal predecessors, (1524), 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) [2022-07-19 21:07:16,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:07:16,927 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:07:16,927 INFO L186 Difference]: Start difference. First operand has 156 places, 125 transitions, 388 flow. Second operand 13 states and 1524 transitions. [2022-07-19 21:07:16,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 284 transitions, 1674 flow [2022-07-19 21:07:16,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 284 transitions, 1560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-19 21:07:16,988 INFO L242 Difference]: Finished difference. Result has 158 places, 130 transitions, 478 flow [2022-07-19 21:07:16,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=478, PETRI_PLACES=158, PETRI_TRANSITIONS=130} [2022-07-19 21:07:16,990 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 12 predicate places. [2022-07-19 21:07:16,991 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 130 transitions, 478 flow [2022-07-19 21:07:16,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 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) [2022-07-19 21:07:16,991 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:16,991 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:16,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 21:07:16,992 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:16,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1311624956, now seen corresponding path program 1 times [2022-07-19 21:07:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:16,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4449083] [2022-07-19 21:07:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:16,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:17,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:17,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4449083] [2022-07-19 21:07:17,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4449083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:17,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:17,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 21:07:17,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365924598] [2022-07-19 21:07:17,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:17,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 21:07:17,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:17,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 21:07:17,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 21:07:17,156 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-07-19 21:07:17,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 130 transitions, 478 flow. Second operand has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 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) [2022-07-19 21:07:17,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:17,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-07-19 21:07:17,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:19,640 INFO L129 PetriNetUnfolder]: 8972/16036 cut-off events. [2022-07-19 21:07:19,641 INFO L130 PetriNetUnfolder]: For 46172/46175 co-relation queries the response was YES. [2022-07-19 21:07:19,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53390 conditions, 16036 events. 8972/16036 cut-off events. For 46172/46175 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 130616 event pairs, 1200 based on Foata normal form. 330/16130 useless extension candidates. Maximal degree in co-relation 53304. Up to 3520 conditions per place. [2022-07-19 21:07:19,765 INFO L132 encePairwiseOnDemand]: 125/139 looper letters, 55 selfloop transitions, 15 changer transitions 106/263 dead transitions. [2022-07-19 21:07:19,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 263 transitions, 1658 flow [2022-07-19 21:07:19,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 21:07:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-19 21:07:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1502 transitions. [2022-07-19 21:07:19,768 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8312119535141118 [2022-07-19 21:07:19,768 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1502 transitions. [2022-07-19 21:07:19,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1502 transitions. [2022-07-19 21:07:19,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:19,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1502 transitions. [2022-07-19 21:07:19,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.53846153846153) internal successors, (1502), 13 states have internal predecessors, (1502), 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) [2022-07-19 21:07:19,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:07:19,774 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:07:19,774 INFO L186 Difference]: Start difference. First operand has 158 places, 130 transitions, 478 flow. Second operand 13 states and 1502 transitions. [2022-07-19 21:07:19,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 263 transitions, 1658 flow [2022-07-19 21:07:19,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 263 transitions, 1577 flow, removed 38 selfloop flow, removed 4 redundant places. [2022-07-19 21:07:19,973 INFO L242 Difference]: Finished difference. Result has 169 places, 137 transitions, 624 flow [2022-07-19 21:07:19,974 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=624, PETRI_PLACES=169, PETRI_TRANSITIONS=137} [2022-07-19 21:07:19,974 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 23 predicate places. [2022-07-19 21:07:19,975 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 137 transitions, 624 flow [2022-07-19 21:07:19,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 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) [2022-07-19 21:07:19,975 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:19,975 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:19,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 21:07:19,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1348306673, now seen corresponding path program 1 times [2022-07-19 21:07:19,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:19,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174824723] [2022-07-19 21:07:19,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:19,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:20,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:20,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174824723] [2022-07-19 21:07:20,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174824723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:20,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:20,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:07:20,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680864092] [2022-07-19 21:07:20,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:20,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:07:20,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:20,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:07:20,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:07:20,081 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-19 21:07:20,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 137 transitions, 624 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2022-07-19 21:07:20,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:20,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-19 21:07:20,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:25,231 INFO L129 PetriNetUnfolder]: 21401/37736 cut-off events. [2022-07-19 21:07:25,232 INFO L130 PetriNetUnfolder]: For 54787/72336 co-relation queries the response was YES. [2022-07-19 21:07:25,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91890 conditions, 37736 events. 21401/37736 cut-off events. For 54787/72336 co-relation queries the response was YES. Maximal size of possible extension queue 2427. Compared 353047 event pairs, 1502 based on Foata normal form. 371/35878 useless extension candidates. Maximal degree in co-relation 91795. Up to 11388 conditions per place. [2022-07-19 21:07:25,686 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 101 selfloop transitions, 20 changer transitions 0/233 dead transitions. [2022-07-19 21:07:25,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 233 transitions, 1288 flow [2022-07-19 21:07:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 21:07:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-19 21:07:25,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1227 transitions. [2022-07-19 21:07:25,690 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8827338129496403 [2022-07-19 21:07:25,690 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1227 transitions. [2022-07-19 21:07:25,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1227 transitions. [2022-07-19 21:07:25,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:25,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1227 transitions. [2022-07-19 21:07:25,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.7) internal successors, (1227), 10 states have internal predecessors, (1227), 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) [2022-07-19 21:07:25,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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) [2022-07-19 21:07:25,700 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 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) [2022-07-19 21:07:25,700 INFO L186 Difference]: Start difference. First operand has 169 places, 137 transitions, 624 flow. Second operand 10 states and 1227 transitions. [2022-07-19 21:07:25,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 233 transitions, 1288 flow [2022-07-19 21:07:25,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 233 transitions, 1186 flow, removed 49 selfloop flow, removed 10 redundant places. [2022-07-19 21:07:25,789 INFO L242 Difference]: Finished difference. Result has 165 places, 155 transitions, 707 flow [2022-07-19 21:07:25,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=707, PETRI_PLACES=165, PETRI_TRANSITIONS=155} [2022-07-19 21:07:25,790 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 19 predicate places. [2022-07-19 21:07:25,790 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 155 transitions, 707 flow [2022-07-19 21:07:25,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2022-07-19 21:07:25,790 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:25,791 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:25,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 21:07:25,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:25,791 INFO L85 PathProgramCache]: Analyzing trace with hash -561857278, now seen corresponding path program 1 times [2022-07-19 21:07:25,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:25,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456376450] [2022-07-19 21:07:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:25,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:25,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:25,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456376450] [2022-07-19 21:07:25,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456376450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:25,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:25,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 21:07:25,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244893298] [2022-07-19 21:07:25,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:25,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 21:07:25,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:25,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 21:07:25,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 21:07:25,883 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-19 21:07:25,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 155 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2022-07-19 21:07:25,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:25,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-19 21:07:25,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:31,125 INFO L129 PetriNetUnfolder]: 20000/36860 cut-off events. [2022-07-19 21:07:31,125 INFO L130 PetriNetUnfolder]: For 68385/87163 co-relation queries the response was YES. [2022-07-19 21:07:31,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113786 conditions, 36860 events. 20000/36860 cut-off events. For 68385/87163 co-relation queries the response was YES. Maximal size of possible extension queue 2543. Compared 368102 event pairs, 1100 based on Foata normal form. 880/36146 useless extension candidates. Maximal degree in co-relation 113692. Up to 7040 conditions per place. [2022-07-19 21:07:31,584 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 132 selfloop transitions, 38 changer transitions 0/282 dead transitions. [2022-07-19 21:07:31,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 282 transitions, 1767 flow [2022-07-19 21:07:31,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 21:07:31,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-19 21:07:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1600 transitions. [2022-07-19 21:07:31,591 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8854454897620365 [2022-07-19 21:07:31,591 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1600 transitions. [2022-07-19 21:07:31,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1600 transitions. [2022-07-19 21:07:31,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:31,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1600 transitions. [2022-07-19 21:07:31,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 123.07692307692308) internal successors, (1600), 13 states have internal predecessors, (1600), 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) [2022-07-19 21:07:31,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:07:31,605 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:07:31,605 INFO L186 Difference]: Start difference. First operand has 165 places, 155 transitions, 707 flow. Second operand 13 states and 1600 transitions. [2022-07-19 21:07:31,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 282 transitions, 1767 flow [2022-07-19 21:07:32,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 282 transitions, 1747 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-07-19 21:07:32,437 INFO L242 Difference]: Finished difference. Result has 176 places, 175 transitions, 980 flow [2022-07-19 21:07:32,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=980, PETRI_PLACES=176, PETRI_TRANSITIONS=175} [2022-07-19 21:07:32,438 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 30 predicate places. [2022-07-19 21:07:32,438 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 175 transitions, 980 flow [2022-07-19 21:07:32,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 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) [2022-07-19 21:07:32,439 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:32,439 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:32,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 21:07:32,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:32,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:32,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1184555868, now seen corresponding path program 1 times [2022-07-19 21:07:32,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:32,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338297484] [2022-07-19 21:07:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:32,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:32,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:32,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338297484] [2022-07-19 21:07:32,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338297484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:32,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:32,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 21:07:32,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678850017] [2022-07-19 21:07:32,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:32,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 21:07:32,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:32,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 21:07:32,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-19 21:07:32,564 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-19 21:07:32,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 175 transitions, 980 flow. Second operand has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 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) [2022-07-19 21:07:32,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:32,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-19 21:07:32,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:37,979 INFO L129 PetriNetUnfolder]: 19424/35999 cut-off events. [2022-07-19 21:07:37,980 INFO L130 PetriNetUnfolder]: For 118855/137425 co-relation queries the response was YES. [2022-07-19 21:07:38,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133008 conditions, 35999 events. 19424/35999 cut-off events. For 118855/137425 co-relation queries the response was YES. Maximal size of possible extension queue 2541. Compared 363802 event pairs, 1040 based on Foata normal form. 635/35061 useless extension candidates. Maximal degree in co-relation 132912. Up to 6854 conditions per place. [2022-07-19 21:07:38,356 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 128 selfloop transitions, 58 changer transitions 30/328 dead transitions. [2022-07-19 21:07:38,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 328 transitions, 2438 flow [2022-07-19 21:07:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 21:07:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-19 21:07:38,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1972 transitions. [2022-07-19 21:07:38,361 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8866906474820144 [2022-07-19 21:07:38,361 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1972 transitions. [2022-07-19 21:07:38,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1972 transitions. [2022-07-19 21:07:38,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:38,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1972 transitions. [2022-07-19 21:07:38,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.25) internal successors, (1972), 16 states have internal predecessors, (1972), 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) [2022-07-19 21:07:38,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 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) [2022-07-19 21:07:38,368 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 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) [2022-07-19 21:07:38,368 INFO L186 Difference]: Start difference. First operand has 176 places, 175 transitions, 980 flow. Second operand 16 states and 1972 transitions. [2022-07-19 21:07:38,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 328 transitions, 2438 flow [2022-07-19 21:07:44,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 328 transitions, 2329 flow, removed 45 selfloop flow, removed 4 redundant places. [2022-07-19 21:07:44,217 INFO L242 Difference]: Finished difference. Result has 191 places, 201 transitions, 1340 flow [2022-07-19 21:07:44,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1340, PETRI_PLACES=191, PETRI_TRANSITIONS=201} [2022-07-19 21:07:44,217 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 45 predicate places. [2022-07-19 21:07:44,218 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 201 transitions, 1340 flow [2022-07-19 21:07:44,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 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) [2022-07-19 21:07:44,218 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:44,218 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:44,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 21:07:44,218 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:44,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:44,219 INFO L85 PathProgramCache]: Analyzing trace with hash -928883341, now seen corresponding path program 1 times [2022-07-19 21:07:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:44,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797277698] [2022-07-19 21:07:44,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:44,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:44,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797277698] [2022-07-19 21:07:44,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797277698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:44,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:44,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 21:07:44,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007275715] [2022-07-19 21:07:44,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:44,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 21:07:44,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:44,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 21:07:44,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-19 21:07:44,350 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-07-19 21:07:44,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 201 transitions, 1340 flow. Second operand has 9 states, 9 states have (on average 114.22222222222223) internal successors, (1028), 9 states have internal predecessors, (1028), 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) [2022-07-19 21:07:44,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:44,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-07-19 21:07:44,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:07:49,549 INFO L129 PetriNetUnfolder]: 19344/35467 cut-off events. [2022-07-19 21:07:49,549 INFO L130 PetriNetUnfolder]: For 120186/137290 co-relation queries the response was YES. [2022-07-19 21:07:49,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131489 conditions, 35467 events. 19344/35467 cut-off events. For 120186/137290 co-relation queries the response was YES. Maximal size of possible extension queue 2484. Compared 353974 event pairs, 1201 based on Foata normal form. 402/34340 useless extension candidates. Maximal degree in co-relation 131388. Up to 4610 conditions per place. [2022-07-19 21:07:49,939 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 111 selfloop transitions, 63 changer transitions 41/327 dead transitions. [2022-07-19 21:07:49,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 327 transitions, 2537 flow [2022-07-19 21:07:49,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 21:07:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-07-19 21:07:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2293 transitions. [2022-07-19 21:07:49,944 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8682317304051496 [2022-07-19 21:07:49,944 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2293 transitions. [2022-07-19 21:07:49,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2293 transitions. [2022-07-19 21:07:49,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:07:49,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2293 transitions. [2022-07-19 21:07:49,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 120.6842105263158) internal successors, (2293), 19 states have internal predecessors, (2293), 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) [2022-07-19 21:07:49,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 139.0) internal successors, (2780), 20 states have internal predecessors, (2780), 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) [2022-07-19 21:07:49,952 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 139.0) internal successors, (2780), 20 states have internal predecessors, (2780), 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) [2022-07-19 21:07:49,952 INFO L186 Difference]: Start difference. First operand has 191 places, 201 transitions, 1340 flow. Second operand 19 states and 2293 transitions. [2022-07-19 21:07:49,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 327 transitions, 2537 flow [2022-07-19 21:07:56,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 327 transitions, 2122 flow, removed 161 selfloop flow, removed 16 redundant places. [2022-07-19 21:07:56,173 INFO L242 Difference]: Finished difference. Result has 200 places, 200 transitions, 1168 flow [2022-07-19 21:07:56,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1168, PETRI_PLACES=200, PETRI_TRANSITIONS=200} [2022-07-19 21:07:56,174 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 54 predicate places. [2022-07-19 21:07:56,174 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 200 transitions, 1168 flow [2022-07-19 21:07:56,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 114.22222222222223) internal successors, (1028), 9 states have internal predecessors, (1028), 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) [2022-07-19 21:07:56,175 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:07:56,175 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:07:56,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 21:07:56,176 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:07:56,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:07:56,176 INFO L85 PathProgramCache]: Analyzing trace with hash 857185854, now seen corresponding path program 1 times [2022-07-19 21:07:56,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:07:56,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362540116] [2022-07-19 21:07:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:07:56,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:07:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:07:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:07:56,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:07:56,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362540116] [2022-07-19 21:07:56,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362540116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:07:56,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:07:56,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 21:07:56,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6722794] [2022-07-19 21:07:56,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:07:56,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 21:07:56,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:07:56,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 21:07:56,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-19 21:07:56,358 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 139 [2022-07-19 21:07:56,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 200 transitions, 1168 flow. Second operand has 10 states, 10 states have (on average 103.4) internal successors, (1034), 10 states have internal predecessors, (1034), 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) [2022-07-19 21:07:56,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:07:56,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 139 [2022-07-19 21:07:56,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:08:00,524 INFO L129 PetriNetUnfolder]: 10763/34174 cut-off events. [2022-07-19 21:08:00,524 INFO L130 PetriNetUnfolder]: For 77136/80227 co-relation queries the response was YES. [2022-07-19 21:08:00,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111542 conditions, 34174 events. 10763/34174 cut-off events. For 77136/80227 co-relation queries the response was YES. Maximal size of possible extension queue 4113. Compared 514765 event pairs, 239 based on Foata normal form. 19/31989 useless extension candidates. Maximal degree in co-relation 111434. Up to 3223 conditions per place. [2022-07-19 21:08:01,063 INFO L132 encePairwiseOnDemand]: 115/139 looper letters, 111 selfloop transitions, 100 changer transitions 8/365 dead transitions. [2022-07-19 21:08:01,063 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 365 transitions, 2700 flow [2022-07-19 21:08:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 21:08:01,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-19 21:08:01,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1461 transitions. [2022-07-19 21:08:01,066 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8085224128389596 [2022-07-19 21:08:01,066 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1461 transitions. [2022-07-19 21:08:01,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1461 transitions. [2022-07-19 21:08:01,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:08:01,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1461 transitions. [2022-07-19 21:08:01,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 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) [2022-07-19 21:08:01,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:08:01,076 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-19 21:08:01,076 INFO L186 Difference]: Start difference. First operand has 200 places, 200 transitions, 1168 flow. Second operand 13 states and 1461 transitions. [2022-07-19 21:08:01,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 365 transitions, 2700 flow [2022-07-19 21:08:07,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 365 transitions, 2398 flow, removed 103 selfloop flow, removed 17 redundant places. [2022-07-19 21:08:07,189 INFO L242 Difference]: Finished difference. Result has 203 places, 284 transitions, 2138 flow [2022-07-19 21:08:07,190 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2138, PETRI_PLACES=203, PETRI_TRANSITIONS=284} [2022-07-19 21:08:07,190 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 57 predicate places. [2022-07-19 21:08:07,190 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 284 transitions, 2138 flow [2022-07-19 21:08:07,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 103.4) internal successors, (1034), 10 states have internal predecessors, (1034), 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) [2022-07-19 21:08:07,191 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:08:07,191 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:08:07,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 21:08:07,191 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:08:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:08:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1040173294, now seen corresponding path program 2 times [2022-07-19 21:08:07,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:08:07,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908777770] [2022-07-19 21:08:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:08:07,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:08:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:08:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:08:07,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:08:07,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908777770] [2022-07-19 21:08:07,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908777770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:08:07,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:08:07,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 21:08:07,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109517806] [2022-07-19 21:08:07,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:08:07,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 21:08:07,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:08:07,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 21:08:07,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-07-19 21:08:07,492 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-07-19 21:08:07,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 284 transitions, 2138 flow. Second operand has 13 states, 13 states have (on average 108.15384615384616) internal successors, (1406), 13 states have internal predecessors, (1406), 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) [2022-07-19 21:08:07,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:08:07,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-07-19 21:08:07,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:08:08,430 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1129] L806-->L809: Formula: (= v_~z~0_1 1) InVars {} OutVars{~z~0=v_~z~0_1} AuxVars[] AssignedVars[~z~0][220], [Black: 348#(and (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), Black: 374#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= ~__unbuffered_cnt~0 3) (<= 0 ~main$tmp_guard0~0)), 42#L809true, Black: 342#true, 32#L796true, Black: 182#true, Black: 265#(and (= ~__unbuffered_cnt~0 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), 94#L766true, Black: 257#(and (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), P0Thread1of1ForFork3InUse, Black: 269#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), Black: 254#true, Black: 332#(and (<= ~__unbuffered_cnt~0 2) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), P2Thread1of1ForFork2InUse, 185#(or (not (= 2 ~__unbuffered_p1_EAX~0)) (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))), Black: 312#(and (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), P3Thread1of1ForFork0InUse, Black: 307#true, P1Thread1of1ForFork1InUse, 393#(or (not (= 2 ~__unbuffered_p1_EAX~0)) (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))), 261#(and (= ~__unbuffered_cnt~0 0) (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), Black: 400#(and (= ~a$w_buff0_used~0 1) (or (not (= 2 ~__unbuffered_p1_EAX~0)) (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (= ~a$r_buff0_thd1~0 1)), Black: 407#(and (not (= ~__unbuffered_p1_EBX~0 0)) (= ~a$w_buff0_used~0 0) (not (= ~y~0 0))), Black: 390#(= ~a$w_buff0_used~0 0), Black: 398#(and (= ~a$w_buff0_used~0 0) (or (not (= 2 ~__unbuffered_p1_EAX~0)) (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0)))), Black: 411#(and (<= 1 ~main$tmp_guard1~0) (not (= ~__unbuffered_p1_EBX~0 0)) (= ~a$w_buff0_used~0 0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (not (= ~y~0 0))), Black: 389#(and (= ~a$w_buff0_used~0 1) (= ~a$r_buff0_thd1~0 1)), Black: 405#(and (= ~a$w_buff0_used~0 0) (not (= ~y~0 0))), Black: 387#true, Black: 413#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (not (= ~__unbuffered_p1_EBX~0 0)) (= ~a$w_buff0_used~0 0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (not (= ~y~0 0))), Black: 409#(and (<= 1 ~main$tmp_guard1~0) (not (= ~__unbuffered_p1_EBX~0 0)) (= ~a$w_buff0_used~0 0) (<= (div ~main$tmp_guard1~0 256) 0) (not (= ~y~0 0))), Black: 281#(and (<= ~main$tmp_guard0~0 0) (<= 0 ~main$tmp_guard0~0)), Black: 277#true, Black: 299#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), Black: 295#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= ~__unbuffered_cnt~0 1) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (<= 0 ~main$tmp_guard0~0)), Black: 157#true, 221#(or (not (= 2 ~__unbuffered_p1_EAX~0)) (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))), Black: 218#true, 431#(and (= ~a$r_buff1_thd4~0 0) (= ~a$r_buff1_thd2~0 0) (= ~a$r_buff1_thd3~0 0) (= ~a$w_buff0_used~0 ~a$w_buff0~0) (= ~a$w_buff0_used~0 1) (= ~a$r_buff0_thd2~0 0) (= ~a$r_buff0_thd3~0 0) (= ~a$r_buff0_thd1~0 1) (= ~a$r_buff0_thd4~0 0)), 31#L876-3true, 11#L829true, Black: 372#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= ~main$tmp_guard0~0 0) (<= ~__unbuffered_cnt~0 3) (<= 0 ~main$tmp_guard0~0)), Black: 362#(and (<= ~main$tmp_guard0~0 0) (<= ~__unbuffered_cnt~0 3) (<= 0 ~main$tmp_guard0~0))]) [2022-07-19 21:08:08,430 INFO L384 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-07-19 21:08:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-07-19 21:08:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-07-19 21:08:08,431 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-07-19 21:08:12,425 INFO L129 PetriNetUnfolder]: 12840/41456 cut-off events. [2022-07-19 21:08:12,426 INFO L130 PetriNetUnfolder]: For 72350/75699 co-relation queries the response was YES. [2022-07-19 21:08:12,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122261 conditions, 41456 events. 12840/41456 cut-off events. For 72350/75699 co-relation queries the response was YES. Maximal size of possible extension queue 5017. Compared 648088 event pairs, 312 based on Foata normal form. 160/38884 useless extension candidates. Maximal degree in co-relation 122220. Up to 4163 conditions per place. [2022-07-19 21:08:13,285 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 53 selfloop transitions, 17 changer transitions 9/311 dead transitions. [2022-07-19 21:08:13,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 311 transitions, 2484 flow [2022-07-19 21:08:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 21:08:13,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-07-19 21:08:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1323 transitions. [2022-07-19 21:08:13,296 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7931654676258992 [2022-07-19 21:08:13,296 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1323 transitions. [2022-07-19 21:08:13,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1323 transitions. [2022-07-19 21:08:13,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:08:13,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1323 transitions. [2022-07-19 21:08:13,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 110.25) internal successors, (1323), 12 states have internal predecessors, (1323), 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) [2022-07-19 21:08:13,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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) [2022-07-19 21:08:13,307 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 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) [2022-07-19 21:08:13,308 INFO L186 Difference]: Start difference. First operand has 203 places, 284 transitions, 2138 flow. Second operand 12 states and 1323 transitions. [2022-07-19 21:08:13,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 311 transitions, 2484 flow [2022-07-19 21:08:22,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 311 transitions, 2474 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-07-19 21:08:22,380 INFO L242 Difference]: Finished difference. Result has 213 places, 287 transitions, 2235 flow [2022-07-19 21:08:22,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=2132, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2235, PETRI_PLACES=213, PETRI_TRANSITIONS=287} [2022-07-19 21:08:22,381 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 67 predicate places. [2022-07-19 21:08:22,381 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 287 transitions, 2235 flow [2022-07-19 21:08:22,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.15384615384616) internal successors, (1406), 13 states have internal predecessors, (1406), 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) [2022-07-19 21:08:22,382 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:08:22,382 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:08:22,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 21:08:22,382 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-19 21:08:22,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:08:22,383 INFO L85 PathProgramCache]: Analyzing trace with hash -660980030, now seen corresponding path program 3 times [2022-07-19 21:08:22,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:08:22,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195128492] [2022-07-19 21:08:22,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:08:22,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:08:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:08:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:08:22,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:08:22,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195128492] [2022-07-19 21:08:22,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195128492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:08:22,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:08:22,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 21:08:22,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922346366] [2022-07-19 21:08:22,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:08:22,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 21:08:22,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:08:22,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 21:08:22,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 21:08:22,521 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 139 [2022-07-19 21:08:22,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 287 transitions, 2235 flow. Second operand has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2022-07-19 21:08:22,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:08:22,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 139 [2022-07-19 21:08:22,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand