./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 16:58:29,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 16:58:29,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 16:58:29,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 16:58:29,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 16:58:29,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 16:58:29,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 16:58:29,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 16:58:29,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 16:58:29,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 16:58:29,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 16:58:29,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 16:58:29,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 16:58:29,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 16:58:29,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 16:58:29,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 16:58:29,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 16:58:29,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 16:58:29,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 16:58:29,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 16:58:29,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 16:58:29,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 16:58:29,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 16:58:29,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 16:58:29,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 16:58:29,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 16:58:29,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 16:58:29,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 16:58:29,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 16:58:29,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 16:58:29,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 16:58:29,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 16:58:29,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 16:58:29,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 16:58:29,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 16:58:29,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 16:58:29,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 16:58:29,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 16:58:29,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 16:58:30,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 16:58:30,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 16:58:30,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 16:58:30,038 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 16:58:30,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 16:58:30,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 16:58:30,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 16:58:30,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 16:58:30,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 16:58:30,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 16:58:30,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 16:58:30,042 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 16:58:30,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 16:58:30,043 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 16:58:30,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 16:58:30,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 16:58:30,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 16:58:30,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 16:58:30,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 16:58:30,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 16:58:30,044 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 16:58:30,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 16:58:30,044 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 16:58:30,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 16:58:30,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 16:58:30,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 16:58:30,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 16:58:30,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 16:58:30,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 16:58:30,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 16:58:30,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 16:58:30,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 16:58:30,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 16:58:30,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 16:58:30,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 16:58:30,047 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 16:58:30,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 16:58:30,047 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 16:58:30,048 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 16:58:30,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 16:58:30,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 16:58:30,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 16:58:30,378 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 16:58:30,379 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 16:58:30,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 16:58:31,722 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 16:58:31,949 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 16:58:31,953 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 16:58:31,967 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6da38a8fe/3b7cba812876411796a6f4a6033c516d/FLAGca2d9d94c [2023-08-30 16:58:31,981 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6da38a8fe/3b7cba812876411796a6f4a6033c516d [2023-08-30 16:58:31,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 16:58:31,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 16:58:31,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 16:58:31,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 16:58:31,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 16:58:31,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:58:31" (1/1) ... [2023-08-30 16:58:31,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e2dc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:31, skipping insertion in model container [2023-08-30 16:58:31,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:58:31" (1/1) ... [2023-08-30 16:58:31,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 16:58:32,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 16:58:32,154 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 16:58:32,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 16:58:32,333 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 16:58:32,345 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 16:58:32,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 16:58:32,416 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 16:58:32,417 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 16:58:32,423 INFO L208 MainTranslator]: Completed translation [2023-08-30 16:58:32,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32 WrapperNode [2023-08-30 16:58:32,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 16:58:32,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 16:58:32,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 16:58:32,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 16:58:32,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,485 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-08-30 16:58:32,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 16:58:32,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 16:58:32,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 16:58:32,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 16:58:32,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 16:58:32,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 16:58:32,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 16:58:32,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 16:58:32,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (1/1) ... [2023-08-30 16:58:32,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 16:58:32,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 16:58:32,569 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) [2023-08-30 16:58:32,597 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 [2023-08-30 16:58:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 16:58:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 16:58:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 16:58:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 16:58:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 16:58:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 16:58:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 16:58:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 16:58:32,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 16:58:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 16:58:32,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 16:58:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 16:58:32,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 16:58:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 16:58:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 16:58:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 16:58:32,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 16:58:32,616 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 16:58:32,784 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 16:58:32,786 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 16:58:32,993 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 16:58:33,000 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 16:58:33,000 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 16:58:33,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:58:33 BoogieIcfgContainer [2023-08-30 16:58:33,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 16:58:33,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 16:58:33,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 16:58:33,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 16:58:33,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:58:31" (1/3) ... [2023-08-30 16:58:33,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710f83e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:58:33, skipping insertion in model container [2023-08-30 16:58:33,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:58:32" (2/3) ... [2023-08-30 16:58:33,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710f83e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:58:33, skipping insertion in model container [2023-08-30 16:58:33,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:58:33" (3/3) ... [2023-08-30 16:58:33,018 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 16:58:33,027 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 16:58:33,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 16:58:33,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 16:58:33,036 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 16:58:33,136 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 16:58:33,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 100 transitions, 220 flow [2023-08-30 16:58:33,255 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2023-08-30 16:58:33,256 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 16:58:33,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-08-30 16:58:33,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 100 transitions, 220 flow [2023-08-30 16:58:33,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 82 transitions, 176 flow [2023-08-30 16:58:33,270 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 16:58:33,291 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 82 transitions, 176 flow [2023-08-30 16:58:33,295 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 82 transitions, 176 flow [2023-08-30 16:58:33,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 82 transitions, 176 flow [2023-08-30 16:58:33,325 INFO L130 PetriNetUnfolder]: 1/82 cut-off events. [2023-08-30 16:58:33,326 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 16:58:33,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 1/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 45 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-08-30 16:58:33,329 INFO L119 LiptonReduction]: Number of co-enabled transitions 1542 [2023-08-30 16:58:35,725 INFO L134 LiptonReduction]: Checked pairs total: 2647 [2023-08-30 16:58:35,725 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-30 16:58:35,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 16:58:35,741 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8d48952, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 16:58:35,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 16:58:35,749 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2023-08-30 16:58:35,749 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 16:58:35,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:35,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:35,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:35,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1399399724, now seen corresponding path program 1 times [2023-08-30 16:58:35,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:35,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860731311] [2023-08-30 16:58:35,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:35,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:36,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:36,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860731311] [2023-08-30 16:58:36,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860731311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:36,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:36,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 16:58:36,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590053789] [2023-08-30 16:58:36,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:36,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 16:58:36,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:36,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 16:58:36,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 16:58:36,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 164 [2023-08-30 16:58:36,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2023-08-30 16:58:36,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:36,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 164 [2023-08-30 16:58:36,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:36,749 INFO L130 PetriNetUnfolder]: 1299/1851 cut-off events. [2023-08-30 16:58:36,749 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-08-30 16:58:36,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3838 conditions, 1851 events. 1299/1851 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7514 event pairs, 339 based on Foata normal form. 9/1860 useless extension candidates. Maximal degree in co-relation 3826. Up to 1795 conditions per place. [2023-08-30 16:58:36,761 INFO L137 encePairwiseOnDemand]: 160/164 looper letters, 30 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-08-30 16:58:36,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 153 flow [2023-08-30 16:58:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 16:58:36,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 16:58:36,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2023-08-30 16:58:36,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873983739837398 [2023-08-30 16:58:36,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2023-08-30 16:58:36,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2023-08-30 16:58:36,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:36,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2023-08-30 16:58:36,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2023-08-30 16:58:36,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-08-30 16:58:36,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-08-30 16:58:36,796 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 52 flow. Second operand 3 states and 289 transitions. [2023-08-30 16:58:36,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 153 flow [2023-08-30 16:58:36,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 16:58:36,800 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 67 flow [2023-08-30 16:58:36,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-08-30 16:58:36,805 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-08-30 16:58:36,806 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 67 flow [2023-08-30 16:58:36,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2023-08-30 16:58:36,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:36,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:36,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 16:58:36,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:36,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:36,817 INFO L85 PathProgramCache]: Analyzing trace with hash 431717755, now seen corresponding path program 1 times [2023-08-30 16:58:36,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:36,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040189500] [2023-08-30 16:58:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:36,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:37,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:37,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040189500] [2023-08-30 16:58:37,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040189500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:37,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:37,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 16:58:37,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118855342] [2023-08-30 16:58:37,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:37,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 16:58:37,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:37,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 16:58:37,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 16:58:37,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 164 [2023-08-30 16:58:37,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-08-30 16:58:37,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:37,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 164 [2023-08-30 16:58:37,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:37,157 INFO L130 PetriNetUnfolder]: 623/992 cut-off events. [2023-08-30 16:58:37,157 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-08-30 16:58:37,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2275 conditions, 992 events. 623/992 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4562 event pairs, 161 based on Foata normal form. 18/1009 useless extension candidates. Maximal degree in co-relation 2264. Up to 688 conditions per place. [2023-08-30 16:58:37,163 INFO L137 encePairwiseOnDemand]: 161/164 looper letters, 25 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2023-08-30 16:58:37,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 141 flow [2023-08-30 16:58:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 16:58:37,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 16:58:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-08-30 16:58:37,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6117886178861789 [2023-08-30 16:58:37,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-08-30 16:58:37,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-08-30 16:58:37,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:37,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-08-30 16:58:37,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2023-08-30 16:58:37,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-08-30 16:58:37,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-08-30 16:58:37,169 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 67 flow. Second operand 3 states and 301 transitions. [2023-08-30 16:58:37,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 141 flow [2023-08-30 16:58:37,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 16:58:37,172 INFO L231 Difference]: Finished difference. Result has 34 places, 22 transitions, 75 flow [2023-08-30 16:58:37,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2023-08-30 16:58:37,173 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-30 16:58:37,173 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 75 flow [2023-08-30 16:58:37,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-08-30 16:58:37,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:37,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:37,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 16:58:37,174 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:37,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:37,174 INFO L85 PathProgramCache]: Analyzing trace with hash 431717910, now seen corresponding path program 1 times [2023-08-30 16:58:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:37,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079498997] [2023-08-30 16:58:37,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:37,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:37,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:37,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:37,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079498997] [2023-08-30 16:58:37,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079498997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:37,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:37,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 16:58:37,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363187431] [2023-08-30 16:58:37,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:37,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 16:58:37,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:37,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 16:58:37,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 16:58:37,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 164 [2023-08-30 16:58:37,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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) [2023-08-30 16:58:37,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:37,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 164 [2023-08-30 16:58:37,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:37,531 INFO L130 PetriNetUnfolder]: 1137/1635 cut-off events. [2023-08-30 16:58:37,532 INFO L131 PetriNetUnfolder]: For 552/552 co-relation queries the response was YES. [2023-08-30 16:58:37,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3961 conditions, 1635 events. 1137/1635 cut-off events. For 552/552 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6493 event pairs, 405 based on Foata normal form. 27/1662 useless extension candidates. Maximal degree in co-relation 3948. Up to 1378 conditions per place. [2023-08-30 16:58:37,541 INFO L137 encePairwiseOnDemand]: 161/164 looper letters, 32 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2023-08-30 16:58:37,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 177 flow [2023-08-30 16:58:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 16:58:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 16:58:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-08-30 16:58:37,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5894308943089431 [2023-08-30 16:58:37,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-08-30 16:58:37,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-08-30 16:58:37,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:37,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-08-30 16:58:37,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-08-30 16:58:37,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-08-30 16:58:37,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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) [2023-08-30 16:58:37,546 INFO L175 Difference]: Start difference. First operand has 34 places, 22 transitions, 75 flow. Second operand 3 states and 290 transitions. [2023-08-30 16:58:37,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 177 flow [2023-08-30 16:58:37,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 171 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 16:58:37,548 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 80 flow [2023-08-30 16:58:37,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-08-30 16:58:37,549 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2023-08-30 16:58:37,549 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 80 flow [2023-08-30 16:58:37,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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) [2023-08-30 16:58:37,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:37,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:37,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 16:58:37,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:37,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:37,550 INFO L85 PathProgramCache]: Analyzing trace with hash 498347943, now seen corresponding path program 1 times [2023-08-30 16:58:37,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:37,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661510030] [2023-08-30 16:58:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:37,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:37,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:37,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661510030] [2023-08-30 16:58:37,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661510030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:37,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:37,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 16:58:37,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588952791] [2023-08-30 16:58:37,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:37,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 16:58:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:37,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 16:58:37,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 16:58:37,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 164 [2023-08-30 16:58:37,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2023-08-30 16:58:37,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:37,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 164 [2023-08-30 16:58:37,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:37,896 INFO L130 PetriNetUnfolder]: 1356/1971 cut-off events. [2023-08-30 16:58:37,897 INFO L131 PetriNetUnfolder]: For 1076/1076 co-relation queries the response was YES. [2023-08-30 16:58:37,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4818 conditions, 1971 events. 1356/1971 cut-off events. For 1076/1076 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7924 event pairs, 409 based on Foata normal form. 81/2052 useless extension candidates. Maximal degree in co-relation 4804. Up to 682 conditions per place. [2023-08-30 16:58:37,905 INFO L137 encePairwiseOnDemand]: 160/164 looper letters, 30 selfloop transitions, 4 changer transitions 8/42 dead transitions. [2023-08-30 16:58:37,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 223 flow [2023-08-30 16:58:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 16:58:37,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 16:58:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2023-08-30 16:58:37,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5670731707317073 [2023-08-30 16:58:37,907 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2023-08-30 16:58:37,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2023-08-30 16:58:37,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:37,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2023-08-30 16:58:37,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 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) [2023-08-30 16:58:37,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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) [2023-08-30 16:58:37,910 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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) [2023-08-30 16:58:37,910 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 80 flow. Second operand 4 states and 372 transitions. [2023-08-30 16:58:37,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 223 flow [2023-08-30 16:58:37,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 16:58:37,912 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 91 flow [2023-08-30 16:58:37,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2023-08-30 16:58:37,913 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-08-30 16:58:37,913 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 91 flow [2023-08-30 16:58:37,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2023-08-30 16:58:37,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:37,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:37,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 16:58:37,914 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:37,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash -668304170, now seen corresponding path program 1 times [2023-08-30 16:58:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:37,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095874666] [2023-08-30 16:58:37,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:37,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:38,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:38,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095874666] [2023-08-30 16:58:38,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095874666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:38,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:38,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 16:58:38,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584277075] [2023-08-30 16:58:38,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:38,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 16:58:38,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:38,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 16:58:38,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 16:58:38,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 164 [2023-08-30 16:58:38,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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) [2023-08-30 16:58:38,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:38,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 164 [2023-08-30 16:58:38,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:38,162 INFO L130 PetriNetUnfolder]: 410/687 cut-off events. [2023-08-30 16:58:38,162 INFO L131 PetriNetUnfolder]: For 707/707 co-relation queries the response was YES. [2023-08-30 16:58:38,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 687 events. 410/687 cut-off events. For 707/707 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3164 event pairs, 116 based on Foata normal form. 24/708 useless extension candidates. Maximal degree in co-relation 1796. Up to 286 conditions per place. [2023-08-30 16:58:38,165 INFO L137 encePairwiseOnDemand]: 160/164 looper letters, 32 selfloop transitions, 4 changer transitions 6/44 dead transitions. [2023-08-30 16:58:38,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 44 transitions, 257 flow [2023-08-30 16:58:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 16:58:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 16:58:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 396 transitions. [2023-08-30 16:58:38,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6036585365853658 [2023-08-30 16:58:38,168 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 396 transitions. [2023-08-30 16:58:38,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 396 transitions. [2023-08-30 16:58:38,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:38,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 396 transitions. [2023-08-30 16:58:38,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2023-08-30 16:58:38,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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) [2023-08-30 16:58:38,171 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 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) [2023-08-30 16:58:38,171 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 91 flow. Second operand 4 states and 396 transitions. [2023-08-30 16:58:38,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 44 transitions, 257 flow [2023-08-30 16:58:38,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 225 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 16:58:38,175 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 91 flow [2023-08-30 16:58:38,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2023-08-30 16:58:38,178 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-08-30 16:58:38,178 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 91 flow [2023-08-30 16:58:38,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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) [2023-08-30 16:58:38,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:38,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:38,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 16:58:38,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:38,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:38,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1191307809, now seen corresponding path program 1 times [2023-08-30 16:58:38,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:38,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92402603] [2023-08-30 16:58:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:38,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:38,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:38,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92402603] [2023-08-30 16:58:38,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92402603] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:38,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:38,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 16:58:38,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593011834] [2023-08-30 16:58:38,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:38,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 16:58:38,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:38,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 16:58:38,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 16:58:38,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 164 [2023-08-30 16:58:38,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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) [2023-08-30 16:58:38,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:38,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 164 [2023-08-30 16:58:38,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:38,425 INFO L130 PetriNetUnfolder]: 266/447 cut-off events. [2023-08-30 16:58:38,425 INFO L131 PetriNetUnfolder]: For 650/650 co-relation queries the response was YES. [2023-08-30 16:58:38,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 447 events. 266/447 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1778 event pairs, 72 based on Foata normal form. 16/460 useless extension candidates. Maximal degree in co-relation 1294. Up to 290 conditions per place. [2023-08-30 16:58:38,428 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 29 selfloop transitions, 5 changer transitions 21/57 dead transitions. [2023-08-30 16:58:38,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 57 transitions, 344 flow [2023-08-30 16:58:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 16:58:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 16:58:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 484 transitions. [2023-08-30 16:58:38,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5902439024390244 [2023-08-30 16:58:38,430 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 484 transitions. [2023-08-30 16:58:38,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 484 transitions. [2023-08-30 16:58:38,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:38,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 484 transitions. [2023-08-30 16:58:38,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.8) internal successors, (484), 5 states have internal predecessors, (484), 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) [2023-08-30 16:58:38,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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) [2023-08-30 16:58:38,434 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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) [2023-08-30 16:58:38,434 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 91 flow. Second operand 5 states and 484 transitions. [2023-08-30 16:58:38,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 57 transitions, 344 flow [2023-08-30 16:58:38,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 309 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 16:58:38,436 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 122 flow [2023-08-30 16:58:38,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2023-08-30 16:58:38,437 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-30 16:58:38,437 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 122 flow [2023-08-30 16:58:38,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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) [2023-08-30 16:58:38,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:38,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:38,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 16:58:38,438 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:38,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:38,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1613254340, now seen corresponding path program 1 times [2023-08-30 16:58:38,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:38,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27925960] [2023-08-30 16:58:38,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:38,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:38,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:38,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27925960] [2023-08-30 16:58:38,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27925960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:38,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:38,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 16:58:38,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38490242] [2023-08-30 16:58:38,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:38,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 16:58:38,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 16:58:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 16:58:38,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 164 [2023-08-30 16:58:38,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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) [2023-08-30 16:58:38,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:38,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 164 [2023-08-30 16:58:38,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:38,683 INFO L130 PetriNetUnfolder]: 194/344 cut-off events. [2023-08-30 16:58:38,683 INFO L131 PetriNetUnfolder]: For 518/537 co-relation queries the response was YES. [2023-08-30 16:58:38,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1312 conditions, 344 events. 194/344 cut-off events. For 518/537 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1307 event pairs, 25 based on Foata normal form. 25/366 useless extension candidates. Maximal degree in co-relation 1296. Up to 213 conditions per place. [2023-08-30 16:58:38,685 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 37 selfloop transitions, 9 changer transitions 21/69 dead transitions. [2023-08-30 16:58:38,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 69 transitions, 462 flow [2023-08-30 16:58:38,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 16:58:38,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 16:58:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 581 transitions. [2023-08-30 16:58:38,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5904471544715447 [2023-08-30 16:58:38,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 581 transitions. [2023-08-30 16:58:38,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 581 transitions. [2023-08-30 16:58:38,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:38,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 581 transitions. [2023-08-30 16:58:38,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 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) [2023-08-30 16:58:38,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 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) [2023-08-30 16:58:38,691 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 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) [2023-08-30 16:58:38,691 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 122 flow. Second operand 6 states and 581 transitions. [2023-08-30 16:58:38,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 69 transitions, 462 flow [2023-08-30 16:58:38,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 69 transitions, 455 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 16:58:38,694 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 187 flow [2023-08-30 16:58:38,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=187, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2023-08-30 16:58:38,695 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-08-30 16:58:38,695 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 187 flow [2023-08-30 16:58:38,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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) [2023-08-30 16:58:38,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:38,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:38,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 16:58:38,696 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:38,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:38,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1528736420, now seen corresponding path program 1 times [2023-08-30 16:58:38,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:38,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292290182] [2023-08-30 16:58:38,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:38,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:38,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:38,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:38,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292290182] [2023-08-30 16:58:38,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292290182] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:38,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:38,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 16:58:38,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987631871] [2023-08-30 16:58:38,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:38,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 16:58:38,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 16:58:38,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 16:58:38,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 164 [2023-08-30 16:58:38,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 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) [2023-08-30 16:58:38,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:38,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 164 [2023-08-30 16:58:38,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:38,961 INFO L130 PetriNetUnfolder]: 121/232 cut-off events. [2023-08-30 16:58:38,961 INFO L131 PetriNetUnfolder]: For 643/685 co-relation queries the response was YES. [2023-08-30 16:58:38,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 232 events. 121/232 cut-off events. For 643/685 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 788 event pairs, 11 based on Foata normal form. 31/260 useless extension candidates. Maximal degree in co-relation 1055. Up to 135 conditions per place. [2023-08-30 16:58:38,963 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 39 selfloop transitions, 13 changer transitions 17/71 dead transitions. [2023-08-30 16:58:38,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 575 flow [2023-08-30 16:58:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 16:58:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 16:58:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 672 transitions. [2023-08-30 16:58:38,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5853658536585366 [2023-08-30 16:58:38,965 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 672 transitions. [2023-08-30 16:58:38,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 672 transitions. [2023-08-30 16:58:38,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:38,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 672 transitions. [2023-08-30 16:58:38,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 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) [2023-08-30 16:58:38,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 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) [2023-08-30 16:58:38,969 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 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) [2023-08-30 16:58:38,969 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 187 flow. Second operand 7 states and 672 transitions. [2023-08-30 16:58:38,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 575 flow [2023-08-30 16:58:38,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 71 transitions, 513 flow, removed 26 selfloop flow, removed 4 redundant places. [2023-08-30 16:58:38,973 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 237 flow [2023-08-30 16:58:38,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=237, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2023-08-30 16:58:38,974 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2023-08-30 16:58:38,974 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 237 flow [2023-08-30 16:58:38,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 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) [2023-08-30 16:58:38,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:38,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:38,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 16:58:38,975 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:38,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash -287987935, now seen corresponding path program 1 times [2023-08-30 16:58:38,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:38,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453882803] [2023-08-30 16:58:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:38,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:39,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:39,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453882803] [2023-08-30 16:58:39,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453882803] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:39,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:39,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 16:58:39,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988892938] [2023-08-30 16:58:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:39,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 16:58:39,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:39,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 16:58:39,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 16:58:39,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 164 [2023-08-30 16:58:39,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2023-08-30 16:58:39,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:39,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 164 [2023-08-30 16:58:39,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:39,230 INFO L130 PetriNetUnfolder]: 203/368 cut-off events. [2023-08-30 16:58:39,231 INFO L131 PetriNetUnfolder]: For 1006/1006 co-relation queries the response was YES. [2023-08-30 16:58:39,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 368 events. 203/368 cut-off events. For 1006/1006 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1280 event pairs, 26 based on Foata normal form. 6/374 useless extension candidates. Maximal degree in co-relation 1595. Up to 207 conditions per place. [2023-08-30 16:58:39,234 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 50 selfloop transitions, 9 changer transitions 6/65 dead transitions. [2023-08-30 16:58:39,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 595 flow [2023-08-30 16:58:39,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 16:58:39,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 16:58:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 454 transitions. [2023-08-30 16:58:39,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5536585365853659 [2023-08-30 16:58:39,236 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 454 transitions. [2023-08-30 16:58:39,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 454 transitions. [2023-08-30 16:58:39,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:39,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 454 transitions. [2023-08-30 16:58:39,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2023-08-30 16:58:39,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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) [2023-08-30 16:58:39,239 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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) [2023-08-30 16:58:39,239 INFO L175 Difference]: Start difference. First operand has 48 places, 34 transitions, 237 flow. Second operand 5 states and 454 transitions. [2023-08-30 16:58:39,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 595 flow [2023-08-30 16:58:39,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 65 transitions, 485 flow, removed 34 selfloop flow, removed 5 redundant places. [2023-08-30 16:58:39,245 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 239 flow [2023-08-30 16:58:39,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=239, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-30 16:58:39,245 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2023-08-30 16:58:39,246 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 239 flow [2023-08-30 16:58:39,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2023-08-30 16:58:39,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:39,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:39,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 16:58:39,246 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:39,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:39,247 INFO L85 PathProgramCache]: Analyzing trace with hash -719952799, now seen corresponding path program 2 times [2023-08-30 16:58:39,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:39,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381662083] [2023-08-30 16:58:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:39,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:39,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:39,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381662083] [2023-08-30 16:58:39,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381662083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:39,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:39,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 16:58:39,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266176166] [2023-08-30 16:58:39,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:39,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 16:58:39,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:39,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 16:58:39,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-08-30 16:58:39,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 164 [2023-08-30 16:58:39,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 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) [2023-08-30 16:58:39,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:39,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 164 [2023-08-30 16:58:39,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:39,538 INFO L130 PetriNetUnfolder]: 132/258 cut-off events. [2023-08-30 16:58:39,538 INFO L131 PetriNetUnfolder]: For 629/741 co-relation queries the response was YES. [2023-08-30 16:58:39,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 258 events. 132/258 cut-off events. For 629/741 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 983 event pairs, 8 based on Foata normal form. 48/296 useless extension candidates. Maximal degree in co-relation 1045. Up to 87 conditions per place. [2023-08-30 16:58:39,540 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 41 selfloop transitions, 18 changer transitions 9/72 dead transitions. [2023-08-30 16:58:39,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 72 transitions, 599 flow [2023-08-30 16:58:39,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 16:58:39,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 16:58:39,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 751 transitions. [2023-08-30 16:58:39,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5724085365853658 [2023-08-30 16:58:39,543 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 751 transitions. [2023-08-30 16:58:39,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 751 transitions. [2023-08-30 16:58:39,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:39,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 751 transitions. [2023-08-30 16:58:39,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 93.875) internal successors, (751), 8 states have internal predecessors, (751), 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) [2023-08-30 16:58:39,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 164.0) internal successors, (1476), 9 states have internal predecessors, (1476), 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) [2023-08-30 16:58:39,547 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 164.0) internal successors, (1476), 9 states have internal predecessors, (1476), 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) [2023-08-30 16:58:39,547 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 239 flow. Second operand 8 states and 751 transitions. [2023-08-30 16:58:39,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 72 transitions, 599 flow [2023-08-30 16:58:39,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 72 transitions, 583 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-08-30 16:58:39,552 INFO L231 Difference]: Finished difference. Result has 57 places, 40 transitions, 291 flow [2023-08-30 16:58:39,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=291, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2023-08-30 16:58:39,553 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 24 predicate places. [2023-08-30 16:58:39,553 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 291 flow [2023-08-30 16:58:39,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 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) [2023-08-30 16:58:39,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 16:58:39,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:39,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 16:58:39,554 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 16:58:39,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 16:58:39,554 INFO L85 PathProgramCache]: Analyzing trace with hash 708701820, now seen corresponding path program 1 times [2023-08-30 16:58:39,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 16:58:39,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459617734] [2023-08-30 16:58:39,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 16:58:39,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 16:58:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 16:58:39,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 16:58:39,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 16:58:39,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459617734] [2023-08-30 16:58:39,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459617734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 16:58:39,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 16:58:39,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 16:58:39,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605916044] [2023-08-30 16:58:39,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 16:58:39,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 16:58:39,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 16:58:39,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 16:58:39,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 16:58:39,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 164 [2023-08-30 16:58:39,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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) [2023-08-30 16:58:39,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 16:58:39,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 164 [2023-08-30 16:58:39,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 16:58:39,818 INFO L130 PetriNetUnfolder]: 216/390 cut-off events. [2023-08-30 16:58:39,819 INFO L131 PetriNetUnfolder]: For 1173/1173 co-relation queries the response was YES. [2023-08-30 16:58:39,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1792 conditions, 390 events. 216/390 cut-off events. For 1173/1173 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1455 event pairs, 19 based on Foata normal form. 1/391 useless extension candidates. Maximal degree in co-relation 1776. Up to 256 conditions per place. [2023-08-30 16:58:39,821 INFO L137 encePairwiseOnDemand]: 157/164 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2023-08-30 16:58:39,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 74 transitions, 673 flow [2023-08-30 16:58:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 16:58:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 16:58:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2023-08-30 16:58:39,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5573170731707318 [2023-08-30 16:58:39,823 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2023-08-30 16:58:39,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2023-08-30 16:58:39,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 16:58:39,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2023-08-30 16:58:39,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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) [2023-08-30 16:58:39,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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) [2023-08-30 16:58:39,827 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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) [2023-08-30 16:58:39,828 INFO L175 Difference]: Start difference. First operand has 57 places, 40 transitions, 291 flow. Second operand 5 states and 457 transitions. [2023-08-30 16:58:39,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 74 transitions, 673 flow [2023-08-30 16:58:39,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 74 transitions, 541 flow, removed 30 selfloop flow, removed 7 redundant places. [2023-08-30 16:58:39,833 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2023-08-30 16:58:39,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2023-08-30 16:58:39,834 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2023-08-30 16:58:39,834 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2023-08-30 16:58:39,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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) [2023-08-30 16:58:39,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-08-30 16:58:39,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-08-30 16:58:39,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-30 16:58:39,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-30 16:58:39,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 16:58:39,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 16:58:39,838 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 16:58:39,841 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 16:58:39,841 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 16:58:39,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:58:39 BasicIcfg [2023-08-30 16:58:39,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 16:58:39,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 16:58:39,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 16:58:39,848 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 16:58:39,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:58:33" (3/4) ... [2023-08-30 16:58:39,851 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 16:58:39,857 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 16:58:39,857 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 16:58:39,857 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 16:58:39,857 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 16:58:39,863 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 16:58:39,863 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 16:58:39,864 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 16:58:39,864 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 16:58:39,896 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 16:58:39,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 16:58:39,897 INFO L158 Benchmark]: Toolchain (without parser) took 7912.15ms. Allocated memory was 71.3MB in the beginning and 176.2MB in the end (delta: 104.9MB). Free memory was 37.4MB in the beginning and 104.5MB in the end (delta: -67.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2023-08-30 16:58:39,897 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 16:58:39,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.93ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 34.4MB in the end (delta: 2.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-08-30 16:58:39,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.64ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 32.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 16:58:39,898 INFO L158 Benchmark]: Boogie Preprocessor took 52.95ms. Allocated memory is still 71.3MB. Free memory was 32.4MB in the beginning and 30.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 16:58:39,898 INFO L158 Benchmark]: RCFGBuilder took 461.50ms. Allocated memory is still 71.3MB. Free memory was 30.6MB in the beginning and 38.0MB in the end (delta: -7.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 16:58:39,899 INFO L158 Benchmark]: TraceAbstraction took 6843.24ms. Allocated memory was 71.3MB in the beginning and 176.2MB in the end (delta: 104.9MB). Free memory was 37.3MB in the beginning and 107.7MB in the end (delta: -70.4MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2023-08-30 16:58:39,899 INFO L158 Benchmark]: Witness Printer took 48.96ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 104.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 16:58:39,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.93ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 34.4MB in the end (delta: 2.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.64ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 32.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.95ms. Allocated memory is still 71.3MB. Free memory was 32.4MB in the beginning and 30.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.50ms. Allocated memory is still 71.3MB. Free memory was 30.6MB in the beginning and 38.0MB in the end (delta: -7.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6843.24ms. Allocated memory was 71.3MB in the beginning and 176.2MB in the end (delta: 104.9MB). Free memory was 37.3MB in the beginning and 107.7MB in the end (delta: -70.4MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * Witness Printer took 48.96ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 104.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 94 PlacesBefore, 33 PlacesAfterwards, 82 TransitionsBefore, 20 TransitionsAfterwards, 1542 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2647 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1627, independent: 1537, independent conditional: 0, independent unconditional: 1537, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 816, independent: 783, independent conditional: 0, independent unconditional: 783, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1627, independent: 754, independent conditional: 0, independent unconditional: 754, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 816, unknown conditional: 0, unknown unconditional: 816] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 129 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 378 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 858 IncrementalHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 46 mSDtfsCounter, 858 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=10, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 16:58:39,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE