./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-word-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-word-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', '1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-word-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 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:37:52,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:37:52,340 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:37:52,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:37:52,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:37:52,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:37:52,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:37:52,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:37:52,370 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:37:52,371 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:37:52,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:37:52,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:37:52,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:37:52,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:37:52,372 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:37:52,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:37:52,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:37:52,372 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:37:52,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:37:52,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:37:52,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:37:52,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:37:52,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:37:52,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:37:52,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:37:52,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:37:52,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:37:52,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:37:52,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:37:52,375 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 -> 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 [2024-11-07 23:37:52,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:37:52,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:37:52,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:37:52,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:37:52,647 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:37:52,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2024-11-07 23:37:53,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:37:54,208 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:37:54,210 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2024-11-07 23:37:54,217 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c759956ea/19abad1619eb4e80bfcee823acb61b2c/FLAG05246546a [2024-11-07 23:37:54,518 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c759956ea/19abad1619eb4e80bfcee823acb61b2c [2024-11-07 23:37:54,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:37:54,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:37:54,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:37:54,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:37:54,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:37:54,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1ea073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54, skipping insertion in model container [2024-11-07 23:37:54,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:37:54,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:37:54,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:37:54,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:37:54,738 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:37:54,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54 WrapperNode [2024-11-07 23:37:54,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:37:54,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:37:54,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:37:54,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:37:54,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,773 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 177 [2024-11-07 23:37:54,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:37:54,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:37:54,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:37:54,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:37:54,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,814 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-07 23:37:54,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:37:54,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:37:54,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:37:54,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:37:54,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (1/1) ... [2024-11-07 23:37:54,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:37:54,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:54,873 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 23:37:54,875 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 23:37:54,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:37:54,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:37:54,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:37:54,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:37:54,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:37:54,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:37:54,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:37:54,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:37:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:37:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:37:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:37:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:37:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:37:54,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:37:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:37:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:37:54,910 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 23:37:54,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:37:54,992 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:37:55,274 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:37:55,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:37:55,466 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:37:55,467 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-07 23:37:55,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:55 BoogieIcfgContainer [2024-11-07 23:37:55,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:37:55,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:37:55,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:37:55,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:37:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:37:54" (1/3) ... [2024-11-07 23:37:55,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308eb6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:55, skipping insertion in model container [2024-11-07 23:37:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:54" (2/3) ... [2024-11-07 23:37:55,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308eb6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:55, skipping insertion in model container [2024-11-07 23:37:55,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:55" (3/3) ... [2024-11-07 23:37:55,474 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2024-11-07 23:37:55,484 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:37:55,485 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-07 23:37:55,485 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:37:55,570 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:37:55,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 199 flow [2024-11-07 23:37:55,622 INFO L124 PetriNetUnfolderBase]: 15/86 cut-off events. [2024-11-07 23:37:55,627 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:37:55,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 15/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 262 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2024-11-07 23:37:55,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 89 transitions, 199 flow [2024-11-07 23:37:55,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 84 transitions, 183 flow [2024-11-07 23:37:55,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:37:55,656 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;@215a83a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:37:55,657 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-07 23:37:55,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:37:55,659 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:37:55,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:37:55,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:55,660 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:37:55,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:37:55,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash 803296, now seen corresponding path program 1 times [2024-11-07 23:37:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:55,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197019315] [2024-11-07 23:37:55,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:55,812 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 23:37:55,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:55,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197019315] [2024-11-07 23:37:55,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197019315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:55,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:55,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:37:55,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771498070] [2024-11-07 23:37:55,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:55,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:55,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:55,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:55,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-07 23:37:55,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:37:55,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:55,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-07 23:37:55,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:56,644 INFO L124 PetriNetUnfolderBase]: 4000/6613 cut-off events. [2024-11-07 23:37:56,645 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-07 23:37:56,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11928 conditions, 6613 events. 4000/6613 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 42000 event pairs, 2534 based on Foata normal form. 3/4618 useless extension candidates. Maximal degree in co-relation 11334. Up to 5081 conditions per place. [2024-11-07 23:37:56,694 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 43 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2024-11-07 23:37:56,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 81 transitions, 279 flow [2024-11-07 23:37:56,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:56,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions. [2024-11-07 23:37:56,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5224719101123596 [2024-11-07 23:37:56,705 INFO L175 Difference]: Start difference. First operand has 79 places, 84 transitions, 183 flow. Second operand 4 states and 186 transitions. [2024-11-07 23:37:56,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 81 transitions, 279 flow [2024-11-07 23:37:56,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 270 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 23:37:56,717 INFO L231 Difference]: Finished difference. Result has 74 places, 81 transitions, 184 flow [2024-11-07 23:37:56,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=74, PETRI_TRANSITIONS=81} [2024-11-07 23:37:56,721 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -5 predicate places. [2024-11-07 23:37:56,722 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 81 transitions, 184 flow [2024-11-07 23:37:56,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:37:56,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:56,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:37:56,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:37:56,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:37:56,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:56,725 INFO L85 PathProgramCache]: Analyzing trace with hash 24902940, now seen corresponding path program 1 times [2024-11-07 23:37:56,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:56,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690019204] [2024-11-07 23:37:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:56,818 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 23:37:56,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:56,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690019204] [2024-11-07 23:37:56,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690019204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:56,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:56,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:37:56,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116911413] [2024-11-07 23:37:56,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:56,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:56,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:56,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:56,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:56,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-07 23:37:56,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 81 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:37:56,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:56,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-07 23:37:56,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:57,324 INFO L124 PetriNetUnfolderBase]: 4003/6625 cut-off events. [2024-11-07 23:37:57,324 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-07 23:37:57,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11881 conditions, 6625 events. 4003/6625 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 42108 event pairs, 2534 based on Foata normal form. 3/4634 useless extension candidates. Maximal degree in co-relation 11813. Up to 5094 conditions per place. [2024-11-07 23:37:57,359 INFO L140 encePairwiseOnDemand]: 76/89 looper letters, 50 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-07 23:37:57,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 90 transitions, 336 flow [2024-11-07 23:37:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:57,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2024-11-07 23:37:57,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.547752808988764 [2024-11-07 23:37:57,364 INFO L175 Difference]: Start difference. First operand has 74 places, 81 transitions, 184 flow. Second operand 4 states and 195 transitions. [2024-11-07 23:37:57,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 90 transitions, 336 flow [2024-11-07 23:37:57,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 90 transitions, 306 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:37:57,370 INFO L231 Difference]: Finished difference. Result has 77 places, 90 transitions, 250 flow [2024-11-07 23:37:57,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=77, PETRI_TRANSITIONS=90} [2024-11-07 23:37:57,371 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2024-11-07 23:37:57,371 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 90 transitions, 250 flow [2024-11-07 23:37:57,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:37:57,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:57,371 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:37:57,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:37:57,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:37:57,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:57,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1145084438, now seen corresponding path program 1 times [2024-11-07 23:37:57,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:57,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463861] [2024-11-07 23:37:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:57,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:57,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:57,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463861] [2024-11-07 23:37:57,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:57,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187051622] [2024-11-07 23:37:57,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:57,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:57,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:57,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:37:57,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:37:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:57,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:37:57,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:57,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:37:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:57,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187051622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:37:57,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:37:57,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-07 23:37:57,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290692133] [2024-11-07 23:37:57,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:37:57,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 23:37:57,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:57,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 23:37:57,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-07 23:37:57,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-07 23:37:57,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 90 transitions, 250 flow. Second operand has 10 states, 10 states have (on average 34.0) internal successors, (340), 10 states have internal predecessors, (340), 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 23:37:57,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:57,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-07 23:37:57,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:58,227 INFO L124 PetriNetUnfolderBase]: 4012/6661 cut-off events. [2024-11-07 23:37:58,228 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-11-07 23:37:58,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11996 conditions, 6661 events. 4012/6661 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 42534 event pairs, 2534 based on Foata normal form. 0/4662 useless extension candidates. Maximal degree in co-relation 11827. Up to 5097 conditions per place. [2024-11-07 23:37:58,273 INFO L140 encePairwiseOnDemand]: 76/89 looper letters, 50 selfloop transitions, 37 changer transitions 0/117 dead transitions. [2024-11-07 23:37:58,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 544 flow [2024-11-07 23:37:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:37:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:37:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 426 transitions. [2024-11-07 23:37:58,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4786516853932584 [2024-11-07 23:37:58,280 INFO L175 Difference]: Start difference. First operand has 77 places, 90 transitions, 250 flow. Second operand 10 states and 426 transitions. [2024-11-07 23:37:58,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 117 transitions, 544 flow [2024-11-07 23:37:58,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 117 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:37:58,283 INFO L231 Difference]: Finished difference. Result has 89 places, 117 transitions, 494 flow [2024-11-07 23:37:58,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=494, PETRI_PLACES=89, PETRI_TRANSITIONS=117} [2024-11-07 23:37:58,283 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2024-11-07 23:37:58,284 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 117 transitions, 494 flow [2024-11-07 23:37:58,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.0) internal successors, (340), 10 states have internal predecessors, (340), 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 23:37:58,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:58,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:58,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:37:58,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:58,488 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:37:58,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash -687557227, now seen corresponding path program 1 times [2024-11-07 23:37:58,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:58,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691754434] [2024-11-07 23:37:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:58,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:58,609 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 23:37:58,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:58,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691754434] [2024-11-07 23:37:58,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691754434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:58,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:58,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:58,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454932079] [2024-11-07 23:37:58,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:58,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:58,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:58,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89 [2024-11-07 23:37:58,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 117 transitions, 494 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 23:37:58,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:58,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89 [2024-11-07 23:37:58,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:59,350 INFO L124 PetriNetUnfolderBase]: 7217/10894 cut-off events. [2024-11-07 23:37:59,351 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2024-11-07 23:37:59,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20679 conditions, 10894 events. 7217/10894 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 63689 event pairs, 3494 based on Foata normal form. 146/7927 useless extension candidates. Maximal degree in co-relation 20584. Up to 6976 conditions per place. [2024-11-07 23:37:59,397 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 139 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2024-11-07 23:37:59,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 173 transitions, 898 flow [2024-11-07 23:37:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:59,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2024-11-07 23:37:59,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2024-11-07 23:37:59,399 INFO L175 Difference]: Start difference. First operand has 89 places, 117 transitions, 494 flow. Second operand 4 states and 253 transitions. [2024-11-07 23:37:59,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 173 transitions, 898 flow [2024-11-07 23:37:59,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 173 transitions, 803 flow, removed 25 selfloop flow, removed 4 redundant places. [2024-11-07 23:37:59,405 INFO L231 Difference]: Finished difference. Result has 90 places, 120 transitions, 428 flow [2024-11-07 23:37:59,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=90, PETRI_TRANSITIONS=120} [2024-11-07 23:37:59,407 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-11-07 23:37:59,407 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 120 transitions, 428 flow [2024-11-07 23:37:59,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 23:37:59,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:59,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:59,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:37:59,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:37:59,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 160595052, now seen corresponding path program 1 times [2024-11-07 23:37:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:59,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268526479] [2024-11-07 23:37:59,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:59,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:59,516 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 23:37:59,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:59,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268526479] [2024-11-07 23:37:59,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268526479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:59,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:59,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:59,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060731457] [2024-11-07 23:37:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:59,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:37:59,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:59,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:37:59,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:37:59,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-07 23:37:59,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 120 transitions, 428 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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 23:37:59,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:59,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-07 23:37:59,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:00,858 INFO L124 PetriNetUnfolderBase]: 13551/22409 cut-off events. [2024-11-07 23:38:00,859 INFO L125 PetriNetUnfolderBase]: For 2730/2730 co-relation queries the response was YES. [2024-11-07 23:38:00,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42686 conditions, 22409 events. 13551/22409 cut-off events. For 2730/2730 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 170560 event pairs, 8268 based on Foata normal form. 230/16741 useless extension candidates. Maximal degree in co-relation 42578. Up to 8645 conditions per place. [2024-11-07 23:38:01,049 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 133 selfloop transitions, 11 changer transitions 0/176 dead transitions. [2024-11-07 23:38:01,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 176 transitions, 890 flow [2024-11-07 23:38:01,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:38:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:38:01,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 321 transitions. [2024-11-07 23:38:01,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.601123595505618 [2024-11-07 23:38:01,051 INFO L175 Difference]: Start difference. First operand has 90 places, 120 transitions, 428 flow. Second operand 6 states and 321 transitions. [2024-11-07 23:38:01,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 176 transitions, 890 flow [2024-11-07 23:38:01,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 176 transitions, 885 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:01,058 INFO L231 Difference]: Finished difference. Result has 97 places, 123 transitions, 482 flow [2024-11-07 23:38:01,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=482, PETRI_PLACES=97, PETRI_TRANSITIONS=123} [2024-11-07 23:38:01,059 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2024-11-07 23:38:01,059 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 123 transitions, 482 flow [2024-11-07 23:38:01,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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 23:38:01,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:01,059 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:01,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:38:01,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:38:01,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:01,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1245841916, now seen corresponding path program 1 times [2024-11-07 23:38:01,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:01,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456637675] [2024-11-07 23:38:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:01,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:01,123 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 23:38:01,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456637675] [2024-11-07 23:38:01,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456637675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:01,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:01,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:01,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770727165] [2024-11-07 23:38:01,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:01,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:01,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:01,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:01,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:01,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89 [2024-11-07 23:38:01,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 123 transitions, 482 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 23:38:01,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:01,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89 [2024-11-07 23:38:01,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:02,838 INFO L124 PetriNetUnfolderBase]: 22204/33004 cut-off events. [2024-11-07 23:38:02,838 INFO L125 PetriNetUnfolderBase]: For 4059/4419 co-relation queries the response was YES. [2024-11-07 23:38:02,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66381 conditions, 33004 events. 22204/33004 cut-off events. For 4059/4419 co-relation queries the response was YES. Maximal size of possible extension queue 1021. Compared 216692 event pairs, 10634 based on Foata normal form. 448/25807 useless extension candidates. Maximal degree in co-relation 66268. Up to 21124 conditions per place. [2024-11-07 23:38:03,054 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 145 selfloop transitions, 4 changer transitions 0/181 dead transitions. [2024-11-07 23:38:03,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 181 transitions, 926 flow [2024-11-07 23:38:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:03,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:03,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-07 23:38:03,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2024-11-07 23:38:03,056 INFO L175 Difference]: Start difference. First operand has 97 places, 123 transitions, 482 flow. Second operand 4 states and 251 transitions. [2024-11-07 23:38:03,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 181 transitions, 926 flow [2024-11-07 23:38:03,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 181 transitions, 923 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:03,060 INFO L231 Difference]: Finished difference. Result has 101 places, 126 transitions, 508 flow [2024-11-07 23:38:03,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=508, PETRI_PLACES=101, PETRI_TRANSITIONS=126} [2024-11-07 23:38:03,061 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-11-07 23:38:03,061 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 126 transitions, 508 flow [2024-11-07 23:38:03,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 23:38:03,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:03,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:03,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:38:03,062 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:38:03,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:03,062 INFO L85 PathProgramCache]: Analyzing trace with hash 683480183, now seen corresponding path program 1 times [2024-11-07 23:38:03,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:03,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769139535] [2024-11-07 23:38:03,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:03,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:03,156 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 23:38:03,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:03,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769139535] [2024-11-07 23:38:03,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769139535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:03,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:03,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:38:03,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421285780] [2024-11-07 23:38:03,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:03,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:03,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:03,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:03,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:03,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-07 23:38:03,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 126 transitions, 508 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 23:38:03,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:03,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-07 23:38:03,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:06,582 INFO L124 PetriNetUnfolderBase]: 39672/66276 cut-off events. [2024-11-07 23:38:06,582 INFO L125 PetriNetUnfolderBase]: For 18572/18644 co-relation queries the response was YES. [2024-11-07 23:38:06,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135310 conditions, 66276 events. 39672/66276 cut-off events. For 18572/18644 co-relation queries the response was YES. Maximal size of possible extension queue 2549. Compared 580345 event pairs, 24248 based on Foata normal form. 656/54034 useless extension candidates. Maximal degree in co-relation 135122. Up to 24784 conditions per place. [2024-11-07 23:38:07,287 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 162 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2024-11-07 23:38:07,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 202 transitions, 1145 flow [2024-11-07 23:38:07,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 290 transitions. [2024-11-07 23:38:07,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.651685393258427 [2024-11-07 23:38:07,290 INFO L175 Difference]: Start difference. First operand has 101 places, 126 transitions, 508 flow. Second operand 5 states and 290 transitions. [2024-11-07 23:38:07,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 202 transitions, 1145 flow [2024-11-07 23:38:07,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 202 transitions, 1140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:07,316 INFO L231 Difference]: Finished difference. Result has 107 places, 130 transitions, 574 flow [2024-11-07 23:38:07,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=107, PETRI_TRANSITIONS=130} [2024-11-07 23:38:07,319 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2024-11-07 23:38:07,320 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 130 transitions, 574 flow [2024-11-07 23:38:07,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 23:38:07,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:07,320 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:07,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:38:07,320 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:38:07,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash 33638896, now seen corresponding path program 1 times [2024-11-07 23:38:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:07,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989615808] [2024-11-07 23:38:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:07,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:07,418 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 23:38:07,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:07,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989615808] [2024-11-07 23:38:07,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989615808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:07,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:07,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:07,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862946955] [2024-11-07 23:38:07,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:07,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:07,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:07,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-07 23:38:07,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 130 transitions, 574 flow. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 23:38:07,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:07,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-07 23:38:07,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:14,931 INFO L124 PetriNetUnfolderBase]: 82740/136532 cut-off events. [2024-11-07 23:38:14,932 INFO L125 PetriNetUnfolderBase]: For 25573/25717 co-relation queries the response was YES. [2024-11-07 23:38:15,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273003 conditions, 136532 events. 82740/136532 cut-off events. For 25573/25717 co-relation queries the response was YES. Maximal size of possible extension queue 5039. Compared 1281776 event pairs, 50552 based on Foata normal form. 920/108362 useless extension candidates. Maximal degree in co-relation 272813. Up to 52400 conditions per place. [2024-11-07 23:38:16,138 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 125 selfloop transitions, 13 changer transitions 0/173 dead transitions. [2024-11-07 23:38:16,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 173 transitions, 966 flow [2024-11-07 23:38:16,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:16,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:16,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 278 transitions. [2024-11-07 23:38:16,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6247191011235955 [2024-11-07 23:38:16,140 INFO L175 Difference]: Start difference. First operand has 107 places, 130 transitions, 574 flow. Second operand 5 states and 278 transitions. [2024-11-07 23:38:16,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 173 transitions, 966 flow [2024-11-07 23:38:16,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 173 transitions, 964 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-07 23:38:16,198 INFO L231 Difference]: Finished difference. Result has 113 places, 131 transitions, 618 flow [2024-11-07 23:38:16,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=618, PETRI_PLACES=113, PETRI_TRANSITIONS=131} [2024-11-07 23:38:16,202 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 34 predicate places. [2024-11-07 23:38:16,202 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 131 transitions, 618 flow [2024-11-07 23:38:16,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 23:38:16,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:16,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:16,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:38:16,203 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:38:16,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1042806662, now seen corresponding path program 1 times [2024-11-07 23:38:16,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:16,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283306380] [2024-11-07 23:38:16,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:16,286 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 23:38:16,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:16,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283306380] [2024-11-07 23:38:16,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283306380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:16,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:16,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:16,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951721707] [2024-11-07 23:38:16,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:16,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:16,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:16,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:16,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:16,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-07 23:38:16,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 131 transitions, 618 flow. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 23:38:16,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:16,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-07 23:38:16,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:23,518 INFO L124 PetriNetUnfolderBase]: 80092/132544 cut-off events. [2024-11-07 23:38:23,519 INFO L125 PetriNetUnfolderBase]: For 33612/33828 co-relation queries the response was YES. [2024-11-07 23:38:24,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269778 conditions, 132544 events. 80092/132544 cut-off events. For 33612/33828 co-relation queries the response was YES. Maximal size of possible extension queue 4881. Compared 1242285 event pairs, 48548 based on Foata normal form. 560/106872 useless extension candidates. Maximal degree in co-relation 269581. Up to 49475 conditions per place. [2024-11-07 23:38:24,687 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 164 selfloop transitions, 30 changer transitions 0/229 dead transitions. [2024-11-07 23:38:24,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 229 transitions, 1358 flow [2024-11-07 23:38:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 23:38:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 23:38:24,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 423 transitions. [2024-11-07 23:38:24,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5941011235955056 [2024-11-07 23:38:24,693 INFO L175 Difference]: Start difference. First operand has 113 places, 131 transitions, 618 flow. Second operand 8 states and 423 transitions. [2024-11-07 23:38:24,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 229 transitions, 1358 flow [2024-11-07 23:38:24,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 229 transitions, 1333 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:24,789 INFO L231 Difference]: Finished difference. Result has 123 places, 155 transitions, 906 flow [2024-11-07 23:38:24,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=906, PETRI_PLACES=123, PETRI_TRANSITIONS=155} [2024-11-07 23:38:24,789 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2024-11-07 23:38:24,790 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 155 transitions, 906 flow [2024-11-07 23:38:24,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 23:38:24,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:24,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:24,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:38:24,790 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-07 23:38:24,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1451039184, now seen corresponding path program 1 times [2024-11-07 23:38:24,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:24,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041603178] [2024-11-07 23:38:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:24,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:24,872 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 23:38:24,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:24,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041603178] [2024-11-07 23:38:24,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041603178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:24,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:24,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:24,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150968438] [2024-11-07 23:38:24,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:24,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:24,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:24,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:24,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:24,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89 [2024-11-07 23:38:24,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 155 transitions, 906 flow. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 23:38:24,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:24,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89 [2024-11-07 23:38:24,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand