./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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-collitem-subst.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'e60e484eb5ab810972130a1d83dccbab591b96ac9007b9b56059ed6674807329'] 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-collitem-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e60e484eb5ab810972130a1d83dccbab591b96ac9007b9b56059ed6674807329 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:35:52,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:35:52,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:35:52,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:35:52,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:35:52,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:35:52,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:35:52,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:35:52,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:35:52,303 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:35:52,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:35:52,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:35:52,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:35:52,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:35:52,303 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:35:52,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:35:52,304 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:35:52,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:35:52,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:35:52,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:35:52,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:35:52,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:35:52,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:35:52,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:35:52,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:35:52,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:35:52,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:35:52,306 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 ! overflow) ) 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 -> e60e484eb5ab810972130a1d83dccbab591b96ac9007b9b56059ed6674807329 [2024-11-07 23:35:52,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:35:52,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:35:52,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:35:52,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:35:52,539 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:35:52,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2024-11-07 23:35:53,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:35:53,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:35:53,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2024-11-07 23:35:53,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d1defdc43/54f6a4ab79334c3a800aa596dcd5ccc3/FLAGce7173dfd [2024-11-07 23:35:54,246 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d1defdc43/54f6a4ab79334c3a800aa596dcd5ccc3 [2024-11-07 23:35:54,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:35:54,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:35:54,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:35:54,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:35:54,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:35:54,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297ab43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54, skipping insertion in model container [2024-11-07 23:35:54,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:35:54,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:35:54,392 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:35:54,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:35:54,416 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:35:54,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54 WrapperNode [2024-11-07 23:35:54,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:35:54,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:35:54,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:35:54,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:35:54,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,454 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 19, calls inlined = 41, statements flattened = 519 [2024-11-07 23:35:54,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:35:54,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:35:54,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:35:54,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:35:54,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,485 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 23:35:54,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,494 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:35:54,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:35:54,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:35:54,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:35:54,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (1/1) ... [2024-11-07 23:35:54,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:35:54,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:54,532 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 23:35:54,542 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 23:35:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:35:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:35:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:35:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:35:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:35:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:35:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:35:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:35:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:35:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:35:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:35:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:35:54,559 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 23:35:54,656 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:35:54,658 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:35:55,301 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:35:55,302 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:35:56,975 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:35:56,975 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 23:35:56,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:35:56 BoogieIcfgContainer [2024-11-07 23:35:56,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:35:56,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:35:56,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:35:56,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:35:56,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:35:54" (1/3) ... [2024-11-07 23:35:56,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5b2f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:35:56, skipping insertion in model container [2024-11-07 23:35:56,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:54" (2/3) ... [2024-11-07 23:35:56,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5b2f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:35:56, skipping insertion in model container [2024-11-07 23:35:56,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:35:56" (3/3) ... [2024-11-07 23:35:56,982 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2024-11-07 23:35:56,993 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:35:56,994 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2024-11-07 23:35:56,994 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:35:57,727 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:35:57,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 211 flow [2024-11-07 23:35:57,847 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2024-11-07 23:35:57,848 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:35:57,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 92 events. 0/92 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 507 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-07 23:35:57,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 95 transitions, 211 flow [2024-11-07 23:35:57,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 90 transitions, 195 flow [2024-11-07 23:35:57,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:35:57,865 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;@65abb0fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:35:57,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2024-11-07 23:35:57,870 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:35:57,870 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-07 23:35:57,870 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:35:57,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:57,871 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:35:57,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:35:57,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:57,874 INFO L85 PathProgramCache]: Analyzing trace with hash 70088442, now seen corresponding path program 1 times [2024-11-07 23:35:57,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:57,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466406262] [2024-11-07 23:35:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:58,017 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 23:35:58,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:58,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466406262] [2024-11-07 23:35:58,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466406262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:58,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:58,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:35:58,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731969713] [2024-11-07 23:35:58,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:58,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 23:35:58,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:58,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 23:35:58,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 23:35:58,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:35:58,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 195 flow. Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 23:35:58,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:58,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:35:58,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:12,344 INFO L124 PetriNetUnfolderBase]: 34236/49456 cut-off events. [2024-11-07 23:36:12,345 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-07 23:36:12,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99698 conditions, 49456 events. 34236/49456 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 11172. Compared 430611 event pairs, 34236 based on Foata normal form. 0/12567 useless extension candidates. Maximal degree in co-relation 97143. Up to 49096 conditions per place. [2024-11-07 23:36:12,557 INFO L140 encePairwiseOnDemand]: 71/95 looper letters, 63 selfloop transitions, 0 changer transitions 0/66 dead transitions. [2024-11-07 23:36:12,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 66 transitions, 273 flow [2024-11-07 23:36:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 23:36:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-07 23:36:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 99 transitions. [2024-11-07 23:36:12,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5210526315789473 [2024-11-07 23:36:12,570 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 195 flow. Second operand 2 states and 99 transitions. [2024-11-07 23:36:12,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 66 transitions, 273 flow [2024-11-07 23:36:12,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 66 transitions, 264 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 23:36:12,609 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 138 flow [2024-11-07 23:36:12,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=138, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2024-11-07 23:36:12,621 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -28 predicate places. [2024-11-07 23:36:12,621 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 138 flow [2024-11-07 23:36:12,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 23:36:12,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:12,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:36:12,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:36:12,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:36:12,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash 70088443, now seen corresponding path program 1 times [2024-11-07 23:36:12,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:12,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686428468] [2024-11-07 23:36:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:12,758 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 23:36:12,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:12,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686428468] [2024-11-07 23:36:12,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686428468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:12,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:12,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:36:12,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064609841] [2024-11-07 23:36:12,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:12,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:36:12,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:12,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:36:12,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:36:12,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:36:12,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:12,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:12,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:36:12,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:24,676 INFO L124 PetriNetUnfolderBase]: 30757/44492 cut-off events. [2024-11-07 23:36:24,677 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-07 23:36:24,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89348 conditions, 44492 events. 30757/44492 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 9959. Compared 383093 event pairs, 30757 based on Foata normal form. 0/11498 useless extension candidates. Maximal degree in co-relation 89345. Up to 44150 conditions per place. [2024-11-07 23:36:24,905 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 60 selfloop transitions, 1 changer transitions 0/64 dead transitions. [2024-11-07 23:36:24,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 256 flow [2024-11-07 23:36:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:36:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:36:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-11-07 23:36:24,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28421052631578947 [2024-11-07 23:36:24,908 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 138 flow. Second operand 3 states and 81 transitions. [2024-11-07 23:36:24,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 256 flow [2024-11-07 23:36:24,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 64 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:36:24,911 INFO L231 Difference]: Finished difference. Result has 72 places, 64 transitions, 136 flow [2024-11-07 23:36:24,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=72, PETRI_TRANSITIONS=64} [2024-11-07 23:36:24,912 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -28 predicate places. [2024-11-07 23:36:24,912 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 64 transitions, 136 flow [2024-11-07 23:36:24,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:24,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:24,913 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:36:24,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:36:24,913 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:36:24,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:24,913 INFO L85 PathProgramCache]: Analyzing trace with hash 70088444, now seen corresponding path program 1 times [2024-11-07 23:36:24,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:24,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566995168] [2024-11-07 23:36:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:24,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:24,994 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 23:36:24,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:24,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566995168] [2024-11-07 23:36:24,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566995168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:24,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:24,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:36:24,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134746407] [2024-11-07 23:36:24,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:24,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:36:24,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:36:24,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:36:24,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:36:24,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 64 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:24,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:24,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:36:24,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:34,785 INFO L124 PetriNetUnfolderBase]: 27464/39790 cut-off events. [2024-11-07 23:36:34,786 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-07 23:36:34,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79926 conditions, 39790 events. 27464/39790 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 8817. Compared 339538 event pairs, 27464 based on Foata normal form. 0/10475 useless extension candidates. Maximal degree in co-relation 79922. Up to 39467 conditions per place. [2024-11-07 23:36:34,950 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 58 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2024-11-07 23:36:34,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 62 transitions, 250 flow [2024-11-07 23:36:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:36:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:36:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-11-07 23:36:34,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2771929824561403 [2024-11-07 23:36:34,956 INFO L175 Difference]: Start difference. First operand has 72 places, 64 transitions, 136 flow. Second operand 3 states and 79 transitions. [2024-11-07 23:36:34,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 62 transitions, 250 flow [2024-11-07 23:36:34,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 62 transitions, 249 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:34,957 INFO L231 Difference]: Finished difference. Result has 71 places, 62 transitions, 133 flow [2024-11-07 23:36:34,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2024-11-07 23:36:34,958 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -29 predicate places. [2024-11-07 23:36:34,958 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 133 flow [2024-11-07 23:36:34,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:34,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:34,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:36:34,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:36:34,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:36:34,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:34,959 INFO L85 PathProgramCache]: Analyzing trace with hash 70088446, now seen corresponding path program 1 times [2024-11-07 23:36:34,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:34,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913852741] [2024-11-07 23:36:34,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:34,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:35,042 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 23:36:35,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:35,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913852741] [2024-11-07 23:36:35,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913852741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:35,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:35,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:36:35,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757030315] [2024-11-07 23:36:35,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:35,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:36:35,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:35,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:36:35,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:36:35,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:36:35,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:35,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:35,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:36:35,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:43,939 INFO L124 PetriNetUnfolderBase]: 24456/35468 cut-off events. [2024-11-07 23:36:43,939 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-07 23:36:43,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71247 conditions, 35468 events. 24456/35468 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 7804. Compared 298965 event pairs, 24456 based on Foata normal form. 0/9505 useless extension candidates. Maximal degree in co-relation 71243. Up to 35180 conditions per place. [2024-11-07 23:36:44,070 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 56 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2024-11-07 23:36:44,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 60 transitions, 243 flow [2024-11-07 23:36:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:36:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:36:44,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-07 23:36:44,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27017543859649124 [2024-11-07 23:36:44,075 INFO L175 Difference]: Start difference. First operand has 71 places, 62 transitions, 133 flow. Second operand 3 states and 77 transitions. [2024-11-07 23:36:44,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 60 transitions, 243 flow [2024-11-07 23:36:44,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 60 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:44,076 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 130 flow [2024-11-07 23:36:44,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-07 23:36:44,077 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -30 predicate places. [2024-11-07 23:36:44,077 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 130 flow [2024-11-07 23:36:44,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:44,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:44,077 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:36:44,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:36:44,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:36:44,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash 70088447, now seen corresponding path program 1 times [2024-11-07 23:36:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711640009] [2024-11-07 23:36:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:44,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:44,184 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 23:36:44,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:44,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711640009] [2024-11-07 23:36:44,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711640009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:44,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:44,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:36:44,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903693805] [2024-11-07 23:36:44,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:44,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:36:44,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:44,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:36:44,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:36:44,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:36:44,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:44,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:44,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:36:44,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:52,252 INFO L124 PetriNetUnfolderBase]: 21622/31394 cut-off events. [2024-11-07 23:36:52,252 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-07 23:36:52,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63066 conditions, 31394 events. 21622/31394 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 6854. Compared 261726 event pairs, 21622 based on Foata normal form. 0/8581 useless extension candidates. Maximal degree in co-relation 63062. Up to 31139 conditions per place. [2024-11-07 23:36:52,352 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 54 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2024-11-07 23:36:52,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 58 transitions, 236 flow [2024-11-07 23:36:52,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:36:52,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:36:52,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-07 23:36:52,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2631578947368421 [2024-11-07 23:36:52,354 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 130 flow. Second operand 3 states and 75 transitions. [2024-11-07 23:36:52,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 58 transitions, 236 flow [2024-11-07 23:36:52,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 58 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:52,355 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 127 flow [2024-11-07 23:36:52,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2024-11-07 23:36:52,356 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -31 predicate places. [2024-11-07 23:36:52,356 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 127 flow [2024-11-07 23:36:52,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:52,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:52,356 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:36:52,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:36:52,356 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:36:52,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:52,357 INFO L85 PathProgramCache]: Analyzing trace with hash 70088449, now seen corresponding path program 1 times [2024-11-07 23:36:52,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:52,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539246578] [2024-11-07 23:36:52,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:52,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:52,405 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 23:36:52,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:52,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539246578] [2024-11-07 23:36:52,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539246578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:52,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:52,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:36:52,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923106428] [2024-11-07 23:36:52,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:52,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:36:52,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:52,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:36:52,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:36:52,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:36:52,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:52,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:52,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:36:52,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:59,485 INFO L124 PetriNetUnfolderBase]: 19015/27662 cut-off events. [2024-11-07 23:36:59,485 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-07 23:36:59,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55585 conditions, 27662 events. 19015/27662 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5965. Compared 228618 event pairs, 19015 based on Foata normal form. 0/7734 useless extension candidates. Maximal degree in co-relation 55581. Up to 27424 conditions per place. [2024-11-07 23:36:59,596 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 52 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2024-11-07 23:36:59,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 56 transitions, 229 flow [2024-11-07 23:36:59,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:36:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:36:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-07 23:36:59,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.256140350877193 [2024-11-07 23:36:59,598 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 127 flow. Second operand 3 states and 73 transitions. [2024-11-07 23:36:59,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 56 transitions, 229 flow [2024-11-07 23:36:59,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 56 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:59,599 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 124 flow [2024-11-07 23:36:59,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-11-07 23:36:59,600 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -32 predicate places. [2024-11-07 23:36:59,600 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 124 flow [2024-11-07 23:36:59,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:59,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:59,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:36:59,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:36:59,601 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:36:59,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:59,601 INFO L85 PathProgramCache]: Analyzing trace with hash 70088450, now seen corresponding path program 1 times [2024-11-07 23:36:59,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:59,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395420904] [2024-11-07 23:36:59,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:59,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:59,663 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 23:36:59,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:59,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395420904] [2024-11-07 23:36:59,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395420904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:59,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:59,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:36:59,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515830371] [2024-11-07 23:36:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:59,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:36:59,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:59,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:36:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:36:59,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:36:59,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:36:59,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:59,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:36:59,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:06,130 INFO L124 PetriNetUnfolderBase]: 16574/24164 cut-off events. [2024-11-07 23:37:06,130 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-07 23:37:06,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48572 conditions, 24164 events. 16574/24164 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5139. Compared 198156 event pairs, 16574 based on Foata normal form. 0/6929 useless extension candidates. Maximal degree in co-relation 48568. Up to 23943 conditions per place. [2024-11-07 23:37:06,223 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 50 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2024-11-07 23:37:06,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 54 transitions, 222 flow [2024-11-07 23:37:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:06,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:06,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-07 23:37:06,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24912280701754386 [2024-11-07 23:37:06,224 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 124 flow. Second operand 3 states and 71 transitions. [2024-11-07 23:37:06,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 54 transitions, 222 flow [2024-11-07 23:37:06,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 54 transitions, 221 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:06,225 INFO L231 Difference]: Finished difference. Result has 67 places, 54 transitions, 121 flow [2024-11-07 23:37:06,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=67, PETRI_TRANSITIONS=54} [2024-11-07 23:37:06,226 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -33 predicate places. [2024-11-07 23:37:06,226 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 54 transitions, 121 flow [2024-11-07 23:37:06,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:06,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:06,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:06,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:37:06,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:06,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:06,227 INFO L85 PathProgramCache]: Analyzing trace with hash 70088452, now seen corresponding path program 1 times [2024-11-07 23:37:06,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:06,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247433481] [2024-11-07 23:37:06,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:06,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:06,308 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 23:37:06,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:06,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247433481] [2024-11-07 23:37:06,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247433481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:06,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:06,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:06,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746413646] [2024-11-07 23:37:06,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:06,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:06,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:06,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:06,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:06,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:06,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 54 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:06,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:06,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:06,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:11,878 INFO L124 PetriNetUnfolderBase]: 14374/20990 cut-off events. [2024-11-07 23:37:11,878 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-07 23:37:11,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42195 conditions, 20990 events. 14374/20990 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4418. Compared 170677 event pairs, 14374 based on Foata normal form. 0/6173 useless extension candidates. Maximal degree in co-relation 42191. Up to 20798 conditions per place. [2024-11-07 23:37:11,945 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 48 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2024-11-07 23:37:11,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 52 transitions, 215 flow [2024-11-07 23:37:11,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-07 23:37:11,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24210526315789474 [2024-11-07 23:37:11,946 INFO L175 Difference]: Start difference. First operand has 67 places, 54 transitions, 121 flow. Second operand 3 states and 69 transitions. [2024-11-07 23:37:11,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 52 transitions, 215 flow [2024-11-07 23:37:11,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 52 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:11,947 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 118 flow [2024-11-07 23:37:11,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-11-07 23:37:11,948 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -34 predicate places. [2024-11-07 23:37:11,948 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 118 flow [2024-11-07 23:37:11,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:11,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:11,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:11,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:37:11,948 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:11,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash 70088453, now seen corresponding path program 1 times [2024-11-07 23:37:11,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:11,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437368594] [2024-11-07 23:37:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:11,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:12,000 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 23:37:12,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:12,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437368594] [2024-11-07 23:37:12,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437368594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:12,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:12,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:12,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009377555] [2024-11-07 23:37:12,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:12,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:12,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:12,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:12,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:12,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:12,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:12,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:12,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:12,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:17,077 INFO L124 PetriNetUnfolderBase]: 12328/18036 cut-off events. [2024-11-07 23:37:17,077 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-07 23:37:17,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36260 conditions, 18036 events. 12328/18036 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 3752. Compared 143971 event pairs, 12328 based on Foata normal form. 0/5459 useless extension candidates. Maximal degree in co-relation 36256. Up to 17871 conditions per place. [2024-11-07 23:37:17,126 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 46 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2024-11-07 23:37:17,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 50 transitions, 208 flow [2024-11-07 23:37:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:17,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-07 23:37:17,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23508771929824562 [2024-11-07 23:37:17,127 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 118 flow. Second operand 3 states and 67 transitions. [2024-11-07 23:37:17,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 50 transitions, 208 flow [2024-11-07 23:37:17,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 50 transitions, 207 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:17,131 INFO L231 Difference]: Finished difference. Result has 65 places, 50 transitions, 115 flow [2024-11-07 23:37:17,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=65, PETRI_TRANSITIONS=50} [2024-11-07 23:37:17,132 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -35 predicate places. [2024-11-07 23:37:17,132 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 50 transitions, 115 flow [2024-11-07 23:37:17,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:17,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:17,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:17,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:37:17,132 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:17,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash 70088455, now seen corresponding path program 1 times [2024-11-07 23:37:17,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:17,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455038913] [2024-11-07 23:37:17,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:17,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:17,170 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 23:37:17,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:17,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455038913] [2024-11-07 23:37:17,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455038913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:17,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:17,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:17,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247041889] [2024-11-07 23:37:17,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:17,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:17,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:17,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:17,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:17,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:17,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 50 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:17,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:17,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:17,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:21,522 INFO L124 PetriNetUnfolderBase]: 10473/15368 cut-off events. [2024-11-07 23:37:21,522 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-07 23:37:21,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30909 conditions, 15368 events. 10473/15368 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 3139. Compared 121214 event pairs, 10473 based on Foata normal form. 0/4810 useless extension candidates. Maximal degree in co-relation 30905. Up to 15218 conditions per place. [2024-11-07 23:37:21,580 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 44 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2024-11-07 23:37:21,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 48 transitions, 201 flow [2024-11-07 23:37:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:21,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:21,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-07 23:37:21,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.22807017543859648 [2024-11-07 23:37:21,581 INFO L175 Difference]: Start difference. First operand has 65 places, 50 transitions, 115 flow. Second operand 3 states and 65 transitions. [2024-11-07 23:37:21,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 48 transitions, 201 flow [2024-11-07 23:37:21,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 48 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:21,582 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 112 flow [2024-11-07 23:37:21,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2024-11-07 23:37:21,583 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -36 predicate places. [2024-11-07 23:37:21,583 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 112 flow [2024-11-07 23:37:21,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:21,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:21,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:21,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:37:21,583 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:21,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:21,583 INFO L85 PathProgramCache]: Analyzing trace with hash 70088456, now seen corresponding path program 1 times [2024-11-07 23:37:21,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:21,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266061074] [2024-11-07 23:37:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:21,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:21,693 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 23:37:21,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:21,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266061074] [2024-11-07 23:37:21,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266061074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:21,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:21,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:21,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601518681] [2024-11-07 23:37:21,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:21,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:21,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:21,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:21,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:21,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:21,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:21,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:21,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:21,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:25,443 INFO L124 PetriNetUnfolderBase]: 8764/12906 cut-off events. [2024-11-07 23:37:25,444 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-07 23:37:25,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25970 conditions, 12906 events. 8764/12906 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 2581. Compared 100079 event pairs, 8764 based on Foata normal form. 0/4199 useless extension candidates. Maximal degree in co-relation 25966. Up to 12771 conditions per place. [2024-11-07 23:37:25,485 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 42 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2024-11-07 23:37:25,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 46 transitions, 194 flow [2024-11-07 23:37:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:25,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-11-07 23:37:25,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.22105263157894736 [2024-11-07 23:37:25,488 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 112 flow. Second operand 3 states and 63 transitions. [2024-11-07 23:37:25,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 46 transitions, 194 flow [2024-11-07 23:37:25,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 46 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:25,489 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 109 flow [2024-11-07 23:37:25,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-11-07 23:37:25,491 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -37 predicate places. [2024-11-07 23:37:25,491 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 109 flow [2024-11-07 23:37:25,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:25,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:25,491 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:25,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:37:25,491 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:25,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 70088458, now seen corresponding path program 1 times [2024-11-07 23:37:25,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:25,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997003152] [2024-11-07 23:37:25,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:25,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:25,549 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 23:37:25,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997003152] [2024-11-07 23:37:25,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997003152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:25,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:25,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:25,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458667456] [2024-11-07 23:37:25,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:25,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:25,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:25,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:25,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:25,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:25,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:25,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:25,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:25,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:28,682 INFO L124 PetriNetUnfolderBase]: 7252/10712 cut-off events. [2024-11-07 23:37:28,682 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-07 23:37:28,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21559 conditions, 10712 events. 7252/10712 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 2104. Compared 81363 event pairs, 7252 based on Foata normal form. 0/3633 useless extension candidates. Maximal degree in co-relation 21555. Up to 10600 conditions per place. [2024-11-07 23:37:28,716 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 40 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2024-11-07 23:37:28,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 44 transitions, 187 flow [2024-11-07 23:37:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2024-11-07 23:37:28,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.21403508771929824 [2024-11-07 23:37:28,717 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 109 flow. Second operand 3 states and 61 transitions. [2024-11-07 23:37:28,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 44 transitions, 187 flow [2024-11-07 23:37:28,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 44 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:28,718 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 106 flow [2024-11-07 23:37:28,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2024-11-07 23:37:28,719 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -38 predicate places. [2024-11-07 23:37:28,719 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 106 flow [2024-11-07 23:37:28,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:28,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:28,719 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:28,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 23:37:28,720 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:28,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:28,720 INFO L85 PathProgramCache]: Analyzing trace with hash 70088459, now seen corresponding path program 1 times [2024-11-07 23:37:28,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:28,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829205214] [2024-11-07 23:37:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:28,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:28,772 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 23:37:28,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:28,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829205214] [2024-11-07 23:37:28,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829205214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:28,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:28,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:28,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789918325] [2024-11-07 23:37:28,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:28,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:28,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:28,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:28,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:28,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:28,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:28,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:28,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:28,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:31,369 INFO L124 PetriNetUnfolderBase]: 5874/8710 cut-off events. [2024-11-07 23:37:31,370 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-07 23:37:31,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17534 conditions, 8710 events. 5874/8710 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 1674. Compared 64709 event pairs, 5874 based on Foata normal form. 0/3105 useless extension candidates. Maximal degree in co-relation 17530. Up to 8619 conditions per place. [2024-11-07 23:37:31,391 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 38 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2024-11-07 23:37:31,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 42 transitions, 180 flow [2024-11-07 23:37:31,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:31,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-07 23:37:31,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.20701754385964913 [2024-11-07 23:37:31,392 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 106 flow. Second operand 3 states and 59 transitions. [2024-11-07 23:37:31,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 42 transitions, 180 flow [2024-11-07 23:37:31,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 42 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:31,393 INFO L231 Difference]: Finished difference. Result has 61 places, 42 transitions, 103 flow [2024-11-07 23:37:31,393 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=61, PETRI_TRANSITIONS=42} [2024-11-07 23:37:31,394 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -39 predicate places. [2024-11-07 23:37:31,394 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 103 flow [2024-11-07 23:37:31,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:31,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:31,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:31,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:37:31,394 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:31,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:31,395 INFO L85 PathProgramCache]: Analyzing trace with hash 70088461, now seen corresponding path program 1 times [2024-11-07 23:37:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:31,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23484715] [2024-11-07 23:37:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:31,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:31,432 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 23:37:31,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:31,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23484715] [2024-11-07 23:37:31,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23484715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:31,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:31,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923943142] [2024-11-07 23:37:31,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:31,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:31,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:31,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:31,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:31,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:31,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:31,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:33,429 INFO L124 PetriNetUnfolderBase]: 4651/6938 cut-off events. [2024-11-07 23:37:33,430 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-07 23:37:33,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13977 conditions, 6938 events. 4651/6938 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 1289. Compared 50623 event pairs, 4651 based on Foata normal form. 0/2630 useless extension candidates. Maximal degree in co-relation 13973. Up to 6860 conditions per place. [2024-11-07 23:37:33,449 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 36 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2024-11-07 23:37:33,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 40 transitions, 173 flow [2024-11-07 23:37:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-11-07 23:37:33,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2 [2024-11-07 23:37:33,450 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 103 flow. Second operand 3 states and 57 transitions. [2024-11-07 23:37:33,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 40 transitions, 173 flow [2024-11-07 23:37:33,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 40 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:33,450 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 100 flow [2024-11-07 23:37:33,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2024-11-07 23:37:33,451 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, -40 predicate places. [2024-11-07 23:37:33,451 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 100 flow [2024-11-07 23:37:33,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:33,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:33,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:33,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 23:37:33,451 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2024-11-07 23:37:33,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:33,451 INFO L85 PathProgramCache]: Analyzing trace with hash 70088462, now seen corresponding path program 1 times [2024-11-07 23:37:33,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:33,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072315156] [2024-11-07 23:37:33,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:33,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:33,497 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 23:37:33,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:33,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072315156] [2024-11-07 23:37:33,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072315156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:33,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:33,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:33,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229445909] [2024-11-07 23:37:33,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:33,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:33,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:33,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:33,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:33,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 95 [2024-11-07 23:37:33,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:33,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:33,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 95 [2024-11-07 23:37:33,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand