./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/weaver/chl-word-trans.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:24:13,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:24:13,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:24:13,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:24:13,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:24:13,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:24:13,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:24:13,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:24:13,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:24:13,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:24:13,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:24:13,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:24:13,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:24:13,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:24:13,557 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:24:13,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:24:13,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:24:13,558 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:24:13,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:24:13,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:24:13,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:24:13,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:24:13,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:24:13,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:24:13,559 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:24:13,559 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:24:13,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:24:13,559 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:24:13,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:24:13,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:24:13,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:24:13,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:24:13,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:24:13,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:24:13,561 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 [2024-11-07 11:24:13,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:24:13,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:24:13,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:24:13,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:24:13,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:24:13,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-07 11:24:15,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:24:15,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:24:15,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-07 11:24:15,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/be0af54b0/64135e63359c481a82ffa928a4a83aab/FLAG51fd6c581 [2024-11-07 11:24:15,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/be0af54b0/64135e63359c481a82ffa928a4a83aab [2024-11-07 11:24:15,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:24:15,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:24:15,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:24:15,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:24:15,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:24:15,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f567460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15, skipping insertion in model container [2024-11-07 11:24:15,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:24:15,718 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3331,3344] [2024-11-07 11:24:15,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:24:15,740 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:24:15,771 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3331,3344] [2024-11-07 11:24:15,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:24:15,798 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:24:15,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15 WrapperNode [2024-11-07 11:24:15,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:24:15,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:24:15,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:24:15,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:24:15,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,840 INFO L138 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 165 [2024-11-07 11:24:15,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:24:15,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:24:15,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:24:15,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:24:15,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,881 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-07 11:24:15,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:24:15,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:24:15,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:24:15,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:24:15,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (1/1) ... [2024-11-07 11:24:15,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:24:15,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:24:15,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 11:24:15,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 11:24:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:24:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 11:24:15,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 11:24:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 11:24:15,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 11:24:15,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:24:15,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:24:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:24:15,968 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 11:24:16,057 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:24:16,059 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:24:16,475 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:24:16,476 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:24:16,791 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:24:16,791 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-07 11:24:16,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:24:16 BoogieIcfgContainer [2024-11-07 11:24:16,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:24:16,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:24:16,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:24:16,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:24:16,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:24:15" (1/3) ... [2024-11-07 11:24:16,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4a795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:24:16, skipping insertion in model container [2024-11-07 11:24:16,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:15" (2/3) ... [2024-11-07 11:24:16,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4a795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:24:16, skipping insertion in model container [2024-11-07 11:24:16,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:24:16" (3/3) ... [2024-11-07 11:24:16,802 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2024-11-07 11:24:16,815 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:24:16,815 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:24:16,816 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:24:16,906 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 11:24:16,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 49 transitions, 119 flow [2024-11-07 11:24:16,980 INFO L124 PetriNetUnfolderBase]: 12/46 cut-off events. [2024-11-07 11:24:16,983 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 11:24:16,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 12/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-11-07 11:24:16,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 49 transitions, 119 flow [2024-11-07 11:24:16,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 45 transitions, 108 flow [2024-11-07 11:24:17,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:24:17,016 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@53c65140, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:24:17,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 11:24:17,043 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:24:17,044 INFO L124 PetriNetUnfolderBase]: 12/44 cut-off events. [2024-11-07 11:24:17,044 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 11:24:17,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:17,045 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:17,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:17,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:17,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2139187037, now seen corresponding path program 1 times [2024-11-07 11:24:17,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:17,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169906920] [2024-11-07 11:24:17,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:17,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:17,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:17,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169906920] [2024-11-07 11:24:17,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169906920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:17,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:17,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:17,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006707591] [2024-11-07 11:24:17,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:17,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:17,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:17,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:17,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:17,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:17,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:17,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:17,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:17,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:18,777 INFO L124 PetriNetUnfolderBase]: 4194/5650 cut-off events. [2024-11-07 11:24:18,777 INFO L125 PetriNetUnfolderBase]: For 329/329 co-relation queries the response was YES. [2024-11-07 11:24:18,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11530 conditions, 5650 events. 4194/5650 cut-off events. For 329/329 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 23579 event pairs, 1230 based on Foata normal form. 1/4162 useless extension candidates. Maximal degree in co-relation 10708. Up to 2621 conditions per place. [2024-11-07 11:24:18,813 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 93 selfloop transitions, 13 changer transitions 1/108 dead transitions. [2024-11-07 11:24:18,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 108 transitions, 475 flow [2024-11-07 11:24:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:18,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:18,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-07 11:24:18,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5224489795918368 [2024-11-07 11:24:18,832 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 108 flow. Second operand 5 states and 128 transitions. [2024-11-07 11:24:18,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 108 transitions, 475 flow [2024-11-07 11:24:18,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 108 transitions, 445 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-07 11:24:18,849 INFO L231 Difference]: Finished difference. Result has 44 places, 55 transitions, 174 flow [2024-11-07 11:24:18,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=174, PETRI_PLACES=44, PETRI_TRANSITIONS=55} [2024-11-07 11:24:18,855 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-11-07 11:24:18,856 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 55 transitions, 174 flow [2024-11-07 11:24:18,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:18,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:18,857 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:18,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:24:18,858 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:18,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash -251997727, now seen corresponding path program 2 times [2024-11-07 11:24:18,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528659211] [2024-11-07 11:24:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:18,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:19,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528659211] [2024-11-07 11:24:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528659211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:19,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:19,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:19,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153794545] [2024-11-07 11:24:19,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:19,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:19,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:19,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:19,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:19,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:19,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 55 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:19,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:19,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:19,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:19,981 INFO L124 PetriNetUnfolderBase]: 5362/7396 cut-off events. [2024-11-07 11:24:19,981 INFO L125 PetriNetUnfolderBase]: For 1555/1555 co-relation queries the response was YES. [2024-11-07 11:24:19,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17348 conditions, 7396 events. 5362/7396 cut-off events. For 1555/1555 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 34845 event pairs, 2679 based on Foata normal form. 1/6215 useless extension candidates. Maximal degree in co-relation 11899. Up to 5325 conditions per place. [2024-11-07 11:24:20,032 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 107 selfloop transitions, 7 changer transitions 3/118 dead transitions. [2024-11-07 11:24:20,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 118 transitions, 596 flow [2024-11-07 11:24:20,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:20,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2024-11-07 11:24:20,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5020408163265306 [2024-11-07 11:24:20,034 INFO L175 Difference]: Start difference. First operand has 44 places, 55 transitions, 174 flow. Second operand 5 states and 123 transitions. [2024-11-07 11:24:20,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 118 transitions, 596 flow [2024-11-07 11:24:20,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 118 transitions, 596 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 11:24:20,048 INFO L231 Difference]: Finished difference. Result has 51 places, 60 transitions, 239 flow [2024-11-07 11:24:20,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=239, PETRI_PLACES=51, PETRI_TRANSITIONS=60} [2024-11-07 11:24:20,048 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2024-11-07 11:24:20,049 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 60 transitions, 239 flow [2024-11-07 11:24:20,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:20,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:20,049 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:20,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:24:20,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:20,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:20,050 INFO L85 PathProgramCache]: Analyzing trace with hash -864762781, now seen corresponding path program 3 times [2024-11-07 11:24:20,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:20,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213015409] [2024-11-07 11:24:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:20,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:20,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:20,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213015409] [2024-11-07 11:24:20,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213015409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:20,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:20,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234123511] [2024-11-07 11:24:20,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:20,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:20,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:20,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:20,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:20,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:20,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 60 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:20,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:20,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:20,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:21,219 INFO L124 PetriNetUnfolderBase]: 6533/9128 cut-off events. [2024-11-07 11:24:21,219 INFO L125 PetriNetUnfolderBase]: For 4945/4945 co-relation queries the response was YES. [2024-11-07 11:24:21,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22776 conditions, 9128 events. 6533/9128 cut-off events. For 4945/4945 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 44925 event pairs, 3289 based on Foata normal form. 1/7963 useless extension candidates. Maximal degree in co-relation 16270. Up to 5817 conditions per place. [2024-11-07 11:24:21,282 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 104 selfloop transitions, 17 changer transitions 1/123 dead transitions. [2024-11-07 11:24:21,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 123 transitions, 685 flow [2024-11-07 11:24:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:21,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-11-07 11:24:21,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5265306122448979 [2024-11-07 11:24:21,288 INFO L175 Difference]: Start difference. First operand has 51 places, 60 transitions, 239 flow. Second operand 5 states and 129 transitions. [2024-11-07 11:24:21,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 123 transitions, 685 flow [2024-11-07 11:24:21,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 123 transitions, 675 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:21,310 INFO L231 Difference]: Finished difference. Result has 57 places, 70 transitions, 377 flow [2024-11-07 11:24:21,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=377, PETRI_PLACES=57, PETRI_TRANSITIONS=70} [2024-11-07 11:24:21,311 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-11-07 11:24:21,311 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 70 transitions, 377 flow [2024-11-07 11:24:21,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:21,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:21,312 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:21,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:24:21,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:21,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash 357230847, now seen corresponding path program 4 times [2024-11-07 11:24:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:21,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728424388] [2024-11-07 11:24:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:21,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:21,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:21,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728424388] [2024-11-07 11:24:21,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728424388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:21,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:21,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:21,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64889644] [2024-11-07 11:24:21,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:21,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:21,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:21,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:21,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:21,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 70 transitions, 377 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:21,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:21,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:21,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:22,663 INFO L124 PetriNetUnfolderBase]: 7280/10189 cut-off events. [2024-11-07 11:24:22,663 INFO L125 PetriNetUnfolderBase]: For 11173/11173 co-relation queries the response was YES. [2024-11-07 11:24:22,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27719 conditions, 10189 events. 7280/10189 cut-off events. For 11173/11173 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 52283 event pairs, 3488 based on Foata normal form. 1/8862 useless extension candidates. Maximal degree in co-relation 20100. Up to 6616 conditions per place. [2024-11-07 11:24:22,724 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 124 selfloop transitions, 22 changer transitions 1/148 dead transitions. [2024-11-07 11:24:22,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 148 transitions, 987 flow [2024-11-07 11:24:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-07 11:24:22,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5346938775510204 [2024-11-07 11:24:22,726 INFO L175 Difference]: Start difference. First operand has 57 places, 70 transitions, 377 flow. Second operand 5 states and 131 transitions. [2024-11-07 11:24:22,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 148 transitions, 987 flow [2024-11-07 11:24:22,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 148 transitions, 947 flow, removed 20 selfloop flow, removed 0 redundant places. [2024-11-07 11:24:22,784 INFO L231 Difference]: Finished difference. Result has 64 places, 86 transitions, 591 flow [2024-11-07 11:24:22,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=591, PETRI_PLACES=64, PETRI_TRANSITIONS=86} [2024-11-07 11:24:22,785 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-11-07 11:24:22,785 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 86 transitions, 591 flow [2024-11-07 11:24:22,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:22,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:22,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:22,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 11:24:22,786 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:22,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:22,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2126149539, now seen corresponding path program 5 times [2024-11-07 11:24:22,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:22,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142596122] [2024-11-07 11:24:22,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:22,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:22,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:22,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142596122] [2024-11-07 11:24:22,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142596122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:22,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:22,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:22,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662889693] [2024-11-07 11:24:22,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:22,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:22,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:22,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:22,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 86 transitions, 591 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:22,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:22,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:22,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:23,891 INFO L124 PetriNetUnfolderBase]: 7280/10187 cut-off events. [2024-11-07 11:24:23,892 INFO L125 PetriNetUnfolderBase]: For 16282/16282 co-relation queries the response was YES. [2024-11-07 11:24:23,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29616 conditions, 10187 events. 7280/10187 cut-off events. For 16282/16282 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 51714 event pairs, 3752 based on Foata normal form. 1/9128 useless extension candidates. Maximal degree in co-relation 28424. Up to 6705 conditions per place. [2024-11-07 11:24:23,945 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 123 selfloop transitions, 11 changer transitions 3/138 dead transitions. [2024-11-07 11:24:23,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 138 transitions, 1037 flow [2024-11-07 11:24:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:23,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-11-07 11:24:23,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49387755102040815 [2024-11-07 11:24:23,948 INFO L175 Difference]: Start difference. First operand has 64 places, 86 transitions, 591 flow. Second operand 5 states and 121 transitions. [2024-11-07 11:24:23,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 138 transitions, 1037 flow [2024-11-07 11:24:24,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 138 transitions, 1029 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:24,004 INFO L231 Difference]: Finished difference. Result has 69 places, 86 transitions, 616 flow [2024-11-07 11:24:24,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=616, PETRI_PLACES=69, PETRI_TRANSITIONS=86} [2024-11-07 11:24:24,006 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 26 predicate places. [2024-11-07 11:24:24,006 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 86 transitions, 616 flow [2024-11-07 11:24:24,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:24,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:24,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:24,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 11:24:24,007 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:24,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1870528389, now seen corresponding path program 6 times [2024-11-07 11:24:24,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:24,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676801649] [2024-11-07 11:24:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:24,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:24,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:24,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:24,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676801649] [2024-11-07 11:24:24,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676801649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:24,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:24,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:24,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333848642] [2024-11-07 11:24:24,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:24,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:24,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:24,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:24,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:24,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:24,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 86 transitions, 616 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:24,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:24,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:24,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:25,188 INFO L124 PetriNetUnfolderBase]: 7463/10420 cut-off events. [2024-11-07 11:24:25,189 INFO L125 PetriNetUnfolderBase]: For 19317/19317 co-relation queries the response was YES. [2024-11-07 11:24:25,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30746 conditions, 10420 events. 7463/10420 cut-off events. For 19317/19317 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 52850 event pairs, 2328 based on Foata normal form. 1/9332 useless extension candidates. Maximal degree in co-relation 30154. Up to 4720 conditions per place. [2024-11-07 11:24:25,266 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 105 selfloop transitions, 45 changer transitions 1/152 dead transitions. [2024-11-07 11:24:25,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 152 transitions, 1179 flow [2024-11-07 11:24:25,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-07 11:24:25,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5224489795918368 [2024-11-07 11:24:25,268 INFO L175 Difference]: Start difference. First operand has 69 places, 86 transitions, 616 flow. Second operand 5 states and 128 transitions. [2024-11-07 11:24:25,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 152 transitions, 1179 flow [2024-11-07 11:24:25,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 152 transitions, 1156 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-07 11:24:25,333 INFO L231 Difference]: Finished difference. Result has 73 places, 100 transitions, 859 flow [2024-11-07 11:24:25,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=859, PETRI_PLACES=73, PETRI_TRANSITIONS=100} [2024-11-07 11:24:25,335 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2024-11-07 11:24:25,336 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 100 transitions, 859 flow [2024-11-07 11:24:25,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-07 11:24:25,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:25,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:25,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 11:24:25,337 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:25,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:25,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1888763971, now seen corresponding path program 1 times [2024-11-07 11:24:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:25,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040251495] [2024-11-07 11:24:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:25,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:25,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:25,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040251495] [2024-11-07 11:24:25,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040251495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:25,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:25,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:25,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025976019] [2024-11-07 11:24:25,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:25,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:24:25,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:25,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:24:25,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:24:25,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:25,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 100 transitions, 859 flow. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2024-11-07 11:24:25,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:25,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:25,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:26,605 INFO L124 PetriNetUnfolderBase]: 13070/18041 cut-off events. [2024-11-07 11:24:26,606 INFO L125 PetriNetUnfolderBase]: For 44989/44989 co-relation queries the response was YES. [2024-11-07 11:24:26,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58616 conditions, 18041 events. 13070/18041 cut-off events. For 44989/44989 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 98471 event pairs, 5015 based on Foata normal form. 5/16139 useless extension candidates. Maximal degree in co-relation 49617. Up to 7331 conditions per place. [2024-11-07 11:24:26,700 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 164 selfloop transitions, 23 changer transitions 8/196 dead transitions. [2024-11-07 11:24:26,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 196 transitions, 1880 flow [2024-11-07 11:24:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:24:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:24:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2024-11-07 11:24:26,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45918367346938777 [2024-11-07 11:24:26,701 INFO L175 Difference]: Start difference. First operand has 73 places, 100 transitions, 859 flow. Second operand 6 states and 135 transitions. [2024-11-07 11:24:26,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 196 transitions, 1880 flow [2024-11-07 11:24:26,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 196 transitions, 1794 flow, removed 12 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:26,905 INFO L231 Difference]: Finished difference. Result has 81 places, 112 transitions, 988 flow [2024-11-07 11:24:26,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=988, PETRI_PLACES=81, PETRI_TRANSITIONS=112} [2024-11-07 11:24:26,906 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 38 predicate places. [2024-11-07 11:24:26,906 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 112 transitions, 988 flow [2024-11-07 11:24:26,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2024-11-07 11:24:26,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:26,907 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:26,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 11:24:26,907 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:26,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:26,908 INFO L85 PathProgramCache]: Analyzing trace with hash 428945330, now seen corresponding path program 1 times [2024-11-07 11:24:26,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:26,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104845870] [2024-11-07 11:24:26,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:26,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:27,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:27,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104845870] [2024-11-07 11:24:27,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104845870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:27,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:27,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:27,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388969360] [2024-11-07 11:24:27,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:27,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:24:27,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:27,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:24:27,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:24:27,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:27,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 112 transitions, 988 flow. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2024-11-07 11:24:27,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:27,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:27,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:28,579 INFO L124 PetriNetUnfolderBase]: 20914/28531 cut-off events. [2024-11-07 11:24:28,579 INFO L125 PetriNetUnfolderBase]: For 80443/80443 co-relation queries the response was YES. [2024-11-07 11:24:28,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96856 conditions, 28531 events. 20914/28531 cut-off events. For 80443/80443 co-relation queries the response was YES. Maximal size of possible extension queue 1186. Compared 158238 event pairs, 8224 based on Foata normal form. 5/25421 useless extension candidates. Maximal degree in co-relation 87865. Up to 10761 conditions per place. [2024-11-07 11:24:28,735 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 181 selfloop transitions, 25 changer transitions 41/248 dead transitions. [2024-11-07 11:24:28,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 248 transitions, 2514 flow [2024-11-07 11:24:28,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:24:28,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:24:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 154 transitions. [2024-11-07 11:24:28,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-07 11:24:28,738 INFO L175 Difference]: Start difference. First operand has 81 places, 112 transitions, 988 flow. Second operand 6 states and 154 transitions. [2024-11-07 11:24:28,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 248 transitions, 2514 flow [2024-11-07 11:24:29,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 248 transitions, 2469 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:29,004 INFO L231 Difference]: Finished difference. Result has 89 places, 124 transitions, 1167 flow [2024-11-07 11:24:29,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1167, PETRI_PLACES=89, PETRI_TRANSITIONS=124} [2024-11-07 11:24:29,006 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 46 predicate places. [2024-11-07 11:24:29,006 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 124 transitions, 1167 flow [2024-11-07 11:24:29,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2024-11-07 11:24:29,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:29,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:29,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 11:24:29,006 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:29,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash -526697336, now seen corresponding path program 1 times [2024-11-07 11:24:29,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:29,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610111037] [2024-11-07 11:24:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:29,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:29,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:29,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610111037] [2024-11-07 11:24:29,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610111037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:29,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:29,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:29,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491483686] [2024-11-07 11:24:29,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:29,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:29,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:29,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:29,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:29,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:29,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 124 transitions, 1167 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:29,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:29,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:29,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:31,259 INFO L124 PetriNetUnfolderBase]: 19486/26684 cut-off events. [2024-11-07 11:24:31,260 INFO L125 PetriNetUnfolderBase]: For 82185/82185 co-relation queries the response was YES. [2024-11-07 11:24:31,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92886 conditions, 26684 events. 19486/26684 cut-off events. For 82185/82185 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 145791 event pairs, 5820 based on Foata normal form. 1/23742 useless extension candidates. Maximal degree in co-relation 92762. Up to 13657 conditions per place. [2024-11-07 11:24:31,454 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 185 selfloop transitions, 23 changer transitions 17/226 dead transitions. [2024-11-07 11:24:31,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 226 transitions, 2407 flow [2024-11-07 11:24:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:31,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-11-07 11:24:31,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5183673469387755 [2024-11-07 11:24:31,455 INFO L175 Difference]: Start difference. First operand has 89 places, 124 transitions, 1167 flow. Second operand 5 states and 127 transitions. [2024-11-07 11:24:31,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 226 transitions, 2407 flow [2024-11-07 11:24:31,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 226 transitions, 2352 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-07 11:24:31,831 INFO L231 Difference]: Finished difference. Result has 93 places, 134 transitions, 1366 flow [2024-11-07 11:24:31,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1143, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1366, PETRI_PLACES=93, PETRI_TRANSITIONS=134} [2024-11-07 11:24:31,832 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 50 predicate places. [2024-11-07 11:24:31,832 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 134 transitions, 1366 flow [2024-11-07 11:24:31,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:31,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:31,832 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:31,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 11:24:31,833 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:31,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:31,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1684842140, now seen corresponding path program 2 times [2024-11-07 11:24:31,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:31,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074999332] [2024-11-07 11:24:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:31,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:31,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074999332] [2024-11-07 11:24:31,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074999332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:31,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:31,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:31,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332923596] [2024-11-07 11:24:31,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:31,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:31,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:31,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:31,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:31,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:31,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 134 transitions, 1366 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:31,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:31,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:31,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:33,942 INFO L124 PetriNetUnfolderBase]: 19241/26337 cut-off events. [2024-11-07 11:24:33,943 INFO L125 PetriNetUnfolderBase]: For 108085/108085 co-relation queries the response was YES. [2024-11-07 11:24:34,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92846 conditions, 26337 events. 19241/26337 cut-off events. For 108085/108085 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 144446 event pairs, 10629 based on Foata normal form. 1/23879 useless extension candidates. Maximal degree in co-relation 84700. Up to 19211 conditions per place. [2024-11-07 11:24:34,110 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 148 selfloop transitions, 20 changer transitions 17/186 dead transitions. [2024-11-07 11:24:34,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 186 transitions, 1916 flow [2024-11-07 11:24:34,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:34,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-11-07 11:24:34,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49795918367346936 [2024-11-07 11:24:34,111 INFO L175 Difference]: Start difference. First operand has 93 places, 134 transitions, 1366 flow. Second operand 5 states and 122 transitions. [2024-11-07 11:24:34,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 186 transitions, 1916 flow [2024-11-07 11:24:34,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 186 transitions, 1875 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:34,488 INFO L231 Difference]: Finished difference. Result has 97 places, 131 transitions, 1327 flow [2024-11-07 11:24:34,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1341, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1327, PETRI_PLACES=97, PETRI_TRANSITIONS=131} [2024-11-07 11:24:34,488 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 54 predicate places. [2024-11-07 11:24:34,488 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 131 transitions, 1327 flow [2024-11-07 11:24:34,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:34,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:34,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:34,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 11:24:34,489 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:34,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:34,489 INFO L85 PathProgramCache]: Analyzing trace with hash 668742952, now seen corresponding path program 3 times [2024-11-07 11:24:34,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:34,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352017512] [2024-11-07 11:24:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:34,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:34,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:34,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352017512] [2024-11-07 11:24:34,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352017512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:34,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:34,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:34,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777411533] [2024-11-07 11:24:34,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:34,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:34,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:34,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:34,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:34,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:34,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 131 transitions, 1327 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:34,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:34,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:34,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:36,773 INFO L124 PetriNetUnfolderBase]: 19318/26435 cut-off events. [2024-11-07 11:24:36,773 INFO L125 PetriNetUnfolderBase]: For 110540/110540 co-relation queries the response was YES. [2024-11-07 11:24:36,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93579 conditions, 26435 events. 19318/26435 cut-off events. For 110540/110540 co-relation queries the response was YES. Maximal size of possible extension queue 1124. Compared 145010 event pairs, 10350 based on Foata normal form. 1/23958 useless extension candidates. Maximal degree in co-relation 93493. Up to 19211 conditions per place. [2024-11-07 11:24:36,936 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 163 selfloop transitions, 26 changer transitions 13/203 dead transitions. [2024-11-07 11:24:36,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 203 transitions, 2098 flow [2024-11-07 11:24:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-07 11:24:36,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5346938775510204 [2024-11-07 11:24:36,937 INFO L175 Difference]: Start difference. First operand has 97 places, 131 transitions, 1327 flow. Second operand 5 states and 131 transitions. [2024-11-07 11:24:36,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 203 transitions, 2098 flow [2024-11-07 11:24:37,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 203 transitions, 2052 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-07 11:24:37,208 INFO L231 Difference]: Finished difference. Result has 98 places, 133 transitions, 1343 flow [2024-11-07 11:24:37,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1289, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1343, PETRI_PLACES=98, PETRI_TRANSITIONS=133} [2024-11-07 11:24:37,208 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 55 predicate places. [2024-11-07 11:24:37,208 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 133 transitions, 1343 flow [2024-11-07 11:24:37,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:37,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:37,209 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:37,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 11:24:37,209 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2097724826, now seen corresponding path program 4 times [2024-11-07 11:24:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:37,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949505240] [2024-11-07 11:24:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:37,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:37,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949505240] [2024-11-07 11:24:37,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949505240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:37,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:37,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:37,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91241392] [2024-11-07 11:24:37,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:37,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:37,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:37,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:37,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:37,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:37,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 133 transitions, 1343 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:37,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:37,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:37,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:39,494 INFO L124 PetriNetUnfolderBase]: 19053/26048 cut-off events. [2024-11-07 11:24:39,494 INFO L125 PetriNetUnfolderBase]: For 115844/115844 co-relation queries the response was YES. [2024-11-07 11:24:39,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93933 conditions, 26048 events. 19053/26048 cut-off events. For 115844/115844 co-relation queries the response was YES. Maximal size of possible extension queue 1102. Compared 141807 event pairs, 11146 based on Foata normal form. 1/23582 useless extension candidates. Maximal degree in co-relation 88179. Up to 21122 conditions per place. [2024-11-07 11:24:39,757 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 153 selfloop transitions, 10 changer transitions 19/183 dead transitions. [2024-11-07 11:24:39,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 183 transitions, 1862 flow [2024-11-07 11:24:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:39,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-07 11:24:39,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4897959183673469 [2024-11-07 11:24:39,759 INFO L175 Difference]: Start difference. First operand has 98 places, 133 transitions, 1343 flow. Second operand 5 states and 120 transitions. [2024-11-07 11:24:39,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 183 transitions, 1862 flow [2024-11-07 11:24:40,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 183 transitions, 1810 flow, removed 18 selfloop flow, removed 2 redundant places. [2024-11-07 11:24:40,154 INFO L231 Difference]: Finished difference. Result has 99 places, 128 transitions, 1229 flow [2024-11-07 11:24:40,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1299, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1229, PETRI_PLACES=99, PETRI_TRANSITIONS=128} [2024-11-07 11:24:40,155 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 56 predicate places. [2024-11-07 11:24:40,155 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 128 transitions, 1229 flow [2024-11-07 11:24:40,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:40,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:40,155 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:40,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 11:24:40,156 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:40,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash 817982174, now seen corresponding path program 5 times [2024-11-07 11:24:40,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:40,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125203408] [2024-11-07 11:24:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:40,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:40,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:40,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125203408] [2024-11-07 11:24:40,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125203408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:40,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:40,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:40,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152331132] [2024-11-07 11:24:40,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:40,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:40,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:40,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:40,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:40,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:40,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 128 transitions, 1229 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:40,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:40,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:40,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:42,154 INFO L124 PetriNetUnfolderBase]: 19392/26564 cut-off events. [2024-11-07 11:24:42,154 INFO L125 PetriNetUnfolderBase]: For 111963/111963 co-relation queries the response was YES. [2024-11-07 11:24:42,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95459 conditions, 26564 events. 19392/26564 cut-off events. For 111963/111963 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 145015 event pairs, 5939 based on Foata normal form. 1/24061 useless extension candidates. Maximal degree in co-relation 95383. Up to 14665 conditions per place. [2024-11-07 11:24:42,349 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 180 selfloop transitions, 15 changer transitions 10/206 dead transitions. [2024-11-07 11:24:42,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 206 transitions, 2076 flow [2024-11-07 11:24:42,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:42,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-11-07 11:24:42,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5183673469387755 [2024-11-07 11:24:42,351 INFO L175 Difference]: Start difference. First operand has 99 places, 128 transitions, 1229 flow. Second operand 5 states and 127 transitions. [2024-11-07 11:24:42,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 206 transitions, 2076 flow [2024-11-07 11:24:42,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 206 transitions, 2034 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-11-07 11:24:42,819 INFO L231 Difference]: Finished difference. Result has 101 places, 136 transitions, 1340 flow [2024-11-07 11:24:42,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1340, PETRI_PLACES=101, PETRI_TRANSITIONS=136} [2024-11-07 11:24:42,820 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 58 predicate places. [2024-11-07 11:24:42,820 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 136 transitions, 1340 flow [2024-11-07 11:24:42,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:42,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:42,820 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:42,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 11:24:42,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:42,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:42,821 INFO L85 PathProgramCache]: Analyzing trace with hash -353221696, now seen corresponding path program 6 times [2024-11-07 11:24:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:42,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827280922] [2024-11-07 11:24:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:42,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:42,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827280922] [2024-11-07 11:24:42,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827280922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:42,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:42,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:42,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466802420] [2024-11-07 11:24:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:42,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:42,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:42,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:42,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:42,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:42,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 136 transitions, 1340 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:42,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:42,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:42,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:44,934 INFO L124 PetriNetUnfolderBase]: 19393/26568 cut-off events. [2024-11-07 11:24:44,935 INFO L125 PetriNetUnfolderBase]: For 124989/124989 co-relation queries the response was YES. [2024-11-07 11:24:45,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97459 conditions, 26568 events. 19393/26568 cut-off events. For 124989/124989 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 145505 event pairs, 11171 based on Foata normal form. 1/24052 useless extension candidates. Maximal degree in co-relation 72860. Up to 21122 conditions per place. [2024-11-07 11:24:45,103 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 174 selfloop transitions, 17 changer transitions 10/202 dead transitions. [2024-11-07 11:24:45,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 202 transitions, 2016 flow [2024-11-07 11:24:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-07 11:24:45,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5224489795918368 [2024-11-07 11:24:45,105 INFO L175 Difference]: Start difference. First operand has 101 places, 136 transitions, 1340 flow. Second operand 5 states and 128 transitions. [2024-11-07 11:24:45,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 202 transitions, 2016 flow [2024-11-07 11:24:45,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 202 transitions, 1999 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:45,354 INFO L231 Difference]: Finished difference. Result has 106 places, 138 transitions, 1346 flow [2024-11-07 11:24:45,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1327, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1346, PETRI_PLACES=106, PETRI_TRANSITIONS=138} [2024-11-07 11:24:45,355 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 63 predicate places. [2024-11-07 11:24:45,355 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 138 transitions, 1346 flow [2024-11-07 11:24:45,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-11-07 11:24:45,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:45,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:45,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 11:24:45,355 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:45,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash -254441475, now seen corresponding path program 1 times [2024-11-07 11:24:45,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:45,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760241092] [2024-11-07 11:24:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:24:45,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:45,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760241092] [2024-11-07 11:24:45,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760241092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:45,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:45,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:45,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834516197] [2024-11-07 11:24:45,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:45,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:45,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:45,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:45,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:45,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:45,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 138 transitions, 1346 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:24:45,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:45,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:45,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:47,811 INFO L124 PetriNetUnfolderBase]: 20371/28035 cut-off events. [2024-11-07 11:24:47,811 INFO L125 PetriNetUnfolderBase]: For 140437/140437 co-relation queries the response was YES. [2024-11-07 11:24:47,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104266 conditions, 28035 events. 20371/28035 cut-off events. For 140437/140437 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 161994 event pairs, 5690 based on Foata normal form. 1/25388 useless extension candidates. Maximal degree in co-relation 78562. Up to 14385 conditions per place. [2024-11-07 11:24:48,019 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 205 selfloop transitions, 18 changer transitions 3/227 dead transitions. [2024-11-07 11:24:48,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 227 transitions, 2412 flow [2024-11-07 11:24:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-11-07 11:24:48,020 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2024-11-07 11:24:48,020 INFO L175 Difference]: Start difference. First operand has 106 places, 138 transitions, 1346 flow. Second operand 5 states and 133 transitions. [2024-11-07 11:24:48,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 227 transitions, 2412 flow [2024-11-07 11:24:48,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 227 transitions, 2354 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:48,235 INFO L231 Difference]: Finished difference. Result has 110 places, 149 transitions, 1583 flow [2024-11-07 11:24:48,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1583, PETRI_PLACES=110, PETRI_TRANSITIONS=149} [2024-11-07 11:24:48,236 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 67 predicate places. [2024-11-07 11:24:48,236 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 149 transitions, 1583 flow [2024-11-07 11:24:48,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:24:48,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:48,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:48,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 11:24:48,236 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:48,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash -456908967, now seen corresponding path program 2 times [2024-11-07 11:24:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:48,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603720953] [2024-11-07 11:24:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:48,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:24:48,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:48,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603720953] [2024-11-07 11:24:48,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603720953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:48,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:48,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:48,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647686008] [2024-11-07 11:24:48,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:48,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:48,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:48,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:48,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 149 transitions, 1583 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:24:48,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:48,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:48,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:50,681 INFO L124 PetriNetUnfolderBase]: 20338/27999 cut-off events. [2024-11-07 11:24:50,682 INFO L125 PetriNetUnfolderBase]: For 148837/148837 co-relation queries the response was YES. [2024-11-07 11:24:50,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105771 conditions, 27999 events. 20338/27999 cut-off events. For 148837/148837 co-relation queries the response was YES. Maximal size of possible extension queue 1202. Compared 156330 event pairs, 11171 based on Foata normal form. 1/25353 useless extension candidates. Maximal degree in co-relation 100069. Up to 21122 conditions per place. [2024-11-07 11:24:50,914 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 190 selfloop transitions, 26 changer transitions 3/220 dead transitions. [2024-11-07 11:24:50,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 220 transitions, 2390 flow [2024-11-07 11:24:50,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-11-07 11:24:50,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5306122448979592 [2024-11-07 11:24:50,916 INFO L175 Difference]: Start difference. First operand has 110 places, 149 transitions, 1583 flow. Second operand 5 states and 130 transitions. [2024-11-07 11:24:50,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 220 transitions, 2390 flow [2024-11-07 11:24:51,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 220 transitions, 2360 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:51,224 INFO L231 Difference]: Finished difference. Result has 116 places, 153 transitions, 1716 flow [2024-11-07 11:24:51,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1558, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1716, PETRI_PLACES=116, PETRI_TRANSITIONS=153} [2024-11-07 11:24:51,224 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 73 predicate places. [2024-11-07 11:24:51,224 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 153 transitions, 1716 flow [2024-11-07 11:24:51,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:24:51,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:51,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:51,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 11:24:51,225 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:51,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash 623244311, now seen corresponding path program 3 times [2024-11-07 11:24:51,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:51,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099552849] [2024-11-07 11:24:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:51,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:24:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099552849] [2024-11-07 11:24:51,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099552849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:51,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:51,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:51,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282422936] [2024-11-07 11:24:51,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:51,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:51,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:51,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:51,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:51,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:51,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 153 transitions, 1716 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:24:51,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:51,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:51,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:54,574 INFO L124 PetriNetUnfolderBase]: 25978/35864 cut-off events. [2024-11-07 11:24:54,574 INFO L125 PetriNetUnfolderBase]: For 199528/199528 co-relation queries the response was YES. [2024-11-07 11:24:54,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136061 conditions, 35864 events. 25978/35864 cut-off events. For 199528/199528 co-relation queries the response was YES. Maximal size of possible extension queue 1543. Compared 214598 event pairs, 3467 based on Foata normal form. 1/32439 useless extension candidates. Maximal degree in co-relation 131658. Up to 11598 conditions per place. [2024-11-07 11:24:54,841 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 243 selfloop transitions, 45 changer transitions 4/293 dead transitions. [2024-11-07 11:24:54,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 293 transitions, 3349 flow [2024-11-07 11:24:54,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:24:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:24:54,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-11-07 11:24:54,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5816326530612245 [2024-11-07 11:24:54,842 INFO L175 Difference]: Start difference. First operand has 116 places, 153 transitions, 1716 flow. Second operand 6 states and 171 transitions. [2024-11-07 11:24:54,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 293 transitions, 3349 flow [2024-11-07 11:24:55,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 293 transitions, 3315 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:55,164 INFO L231 Difference]: Finished difference. Result has 124 places, 174 transitions, 2132 flow [2024-11-07 11:24:55,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1692, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2132, PETRI_PLACES=124, PETRI_TRANSITIONS=174} [2024-11-07 11:24:55,165 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 81 predicate places. [2024-11-07 11:24:55,165 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 174 transitions, 2132 flow [2024-11-07 11:24:55,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:24:55,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:55,165 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:24:55,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 11:24:55,165 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:24:55,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1326802223, now seen corresponding path program 4 times [2024-11-07 11:24:55,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:55,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469183840] [2024-11-07 11:24:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:55,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:24:55,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:55,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469183840] [2024-11-07 11:24:55,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469183840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:55,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:55,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:55,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406534933] [2024-11-07 11:24:55,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:55,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:55,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:55,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:55,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:55,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:24:55,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 174 transitions, 2132 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:24:55,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:55,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:24:55,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:58,577 INFO L124 PetriNetUnfolderBase]: 26597/36749 cut-off events. [2024-11-07 11:24:58,577 INFO L125 PetriNetUnfolderBase]: For 237749/237749 co-relation queries the response was YES. [2024-11-07 11:24:58,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147976 conditions, 36749 events. 26597/36749 cut-off events. For 237749/237749 co-relation queries the response was YES. Maximal size of possible extension queue 1603. Compared 218550 event pairs, 6793 based on Foata normal form. 1/33192 useless extension candidates. Maximal degree in co-relation 143558. Up to 16510 conditions per place. [2024-11-07 11:24:58,851 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 237 selfloop transitions, 35 changer transitions 16/289 dead transitions. [2024-11-07 11:24:58,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 289 transitions, 3561 flow [2024-11-07 11:24:58,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:24:58,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:24:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-11-07 11:24:58,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54421768707483 [2024-11-07 11:24:58,853 INFO L175 Difference]: Start difference. First operand has 124 places, 174 transitions, 2132 flow. Second operand 6 states and 160 transitions. [2024-11-07 11:24:58,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 289 transitions, 3561 flow [2024-11-07 11:25:00,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 289 transitions, 3497 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-07 11:25:00,056 INFO L231 Difference]: Finished difference. Result has 133 places, 179 transitions, 2280 flow [2024-11-07 11:25:00,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2098, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2280, PETRI_PLACES=133, PETRI_TRANSITIONS=179} [2024-11-07 11:25:00,057 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 90 predicate places. [2024-11-07 11:25:00,057 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 179 transitions, 2280 flow [2024-11-07 11:25:00,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:25:00,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:25:00,057 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:25:00,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 11:25:00,057 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:25:00,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:25:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1128182105, now seen corresponding path program 5 times [2024-11-07 11:25:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:25:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125113516] [2024-11-07 11:25:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:25:00,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:25:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:25:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:25:00,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:25:00,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125113516] [2024-11-07 11:25:00,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125113516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:25:00,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:25:00,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:25:00,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87999172] [2024-11-07 11:25:00,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:25:00,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:25:00,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:25:00,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:25:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:25:00,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:25:00,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 179 transitions, 2280 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:25:00,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:25:00,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:25:00,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:25:03,587 INFO L124 PetriNetUnfolderBase]: 26392/36463 cut-off events. [2024-11-07 11:25:03,587 INFO L125 PetriNetUnfolderBase]: For 242686/242686 co-relation queries the response was YES. [2024-11-07 11:25:03,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148164 conditions, 36463 events. 26392/36463 cut-off events. For 242686/242686 co-relation queries the response was YES. Maximal size of possible extension queue 1584. Compared 215827 event pairs, 14218 based on Foata normal form. 1/32922 useless extension candidates. Maximal degree in co-relation 148042. Up to 29553 conditions per place. [2024-11-07 11:25:03,912 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 196 selfloop transitions, 30 changer transitions 8/235 dead transitions. [2024-11-07 11:25:03,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 235 transitions, 2987 flow [2024-11-07 11:25:03,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:25:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:25:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions. [2024-11-07 11:25:03,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-07 11:25:03,913 INFO L175 Difference]: Start difference. First operand has 133 places, 179 transitions, 2280 flow. Second operand 5 states and 125 transitions. [2024-11-07 11:25:03,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 235 transitions, 2987 flow [2024-11-07 11:25:04,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 235 transitions, 2963 flow, removed 12 selfloop flow, removed 1 redundant places. [2024-11-07 11:25:04,559 INFO L231 Difference]: Finished difference. Result has 136 places, 176 transitions, 2288 flow [2024-11-07 11:25:04,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2258, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2288, PETRI_PLACES=136, PETRI_TRANSITIONS=176} [2024-11-07 11:25:04,560 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 93 predicate places. [2024-11-07 11:25:04,560 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 176 transitions, 2288 flow [2024-11-07 11:25:04,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:25:04,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:25:04,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:25:04,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 11:25:04,560 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:25:04,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:25:04,560 INFO L85 PathProgramCache]: Analyzing trace with hash 674864337, now seen corresponding path program 6 times [2024-11-07 11:25:04,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:25:04,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540782568] [2024-11-07 11:25:04,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:25:04,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:25:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:25:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:25:04,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:25:04,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540782568] [2024-11-07 11:25:04,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540782568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:25:04,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:25:04,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:25:04,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894570476] [2024-11-07 11:25:04,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:25:04,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:25:04,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:25:04,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:25:04,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:25:04,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 49 [2024-11-07 11:25:04,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 176 transitions, 2288 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-07 11:25:04,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:25:04,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 49 [2024-11-07 11:25:04,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand