./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-array.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/popl20-more-min-array.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', '2261d9b3f7623cbd5155b35c39657066d179b87a48a9848bd1f196c713477a75'] 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/popl20-more-min-array.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 2261d9b3f7623cbd5155b35c39657066d179b87a48a9848bd1f196c713477a75 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:41:30,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:41:31,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:41:31,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:41:31,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:41:31,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:41:31,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:41:31,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:41:31,078 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:41:31,079 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:41:31,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:41:31,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:41:31,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:41:31,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:41:31,080 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:41:31,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:41:31,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:41:31,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:41:31,081 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:41:31,082 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:41:31,082 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:41:31,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:41:31,082 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:41:31,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:41:31,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:41:31,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:41:31,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:41:31,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:41:31,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:41:31,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:41:31,084 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 -> 2261d9b3f7623cbd5155b35c39657066d179b87a48a9848bd1f196c713477a75 [2024-11-07 23:41:31,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:41:31,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:41:31,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:41:31,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:41:31,296 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:41:31,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2024-11-07 23:41:32,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:41:32,575 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:41:32,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2024-11-07 23:41:32,581 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3a0539d4e/b814ae386bc44573a05fd7d4d7a43d49/FLAG3b611afdc [2024-11-07 23:41:32,590 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3a0539d4e/b814ae386bc44573a05fd7d4d7a43d49 [2024-11-07 23:41:32,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:41:32,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:41:32,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:41:32,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:41:32,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:41:32,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6caefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32, skipping insertion in model container [2024-11-07 23:41:32,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:41:32,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:41:32,725 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:41:32,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:41:32,753 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:41:32,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32 WrapperNode [2024-11-07 23:41:32,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:41:32,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:41:32,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:41:32,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:41:32,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,774 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-07 23:41:32,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:41:32,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:41:32,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:41:32,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:41:32,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,790 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-07 23:41:32,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:41:32,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:41:32,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:41:32,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:41:32,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (1/1) ... [2024-11-07 23:41:32,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:41:32,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:32,838 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 23:41:32,841 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 23:41:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:41:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:41:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:41:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:41:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:41:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:41:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:41:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:41:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:41:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:41:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:41:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:41:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:41:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:41:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:41:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:41:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:41:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:41:32,863 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 23:41:32,951 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:41:32,953 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:41:33,163 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:41:33,163 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:41:33,353 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:41:33,354 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-07 23:41:33,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:41:33 BoogieIcfgContainer [2024-11-07 23:41:33,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:41:33,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:41:33,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:41:33,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:41:33,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:41:32" (1/3) ... [2024-11-07 23:41:33,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561a05eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:41:33, skipping insertion in model container [2024-11-07 23:41:33,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:41:32" (2/3) ... [2024-11-07 23:41:33,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561a05eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:41:33, skipping insertion in model container [2024-11-07 23:41:33,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:41:33" (3/3) ... [2024-11-07 23:41:33,362 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array.wvr.c [2024-11-07 23:41:33,372 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:41:33,373 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-07 23:41:33,373 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:41:33,418 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:41:33,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 47 transitions, 115 flow [2024-11-07 23:41:33,466 INFO L124 PetriNetUnfolderBase]: 4/44 cut-off events. [2024-11-07 23:41:33,468 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:41:33,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 4/44 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-11-07 23:41:33,470 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 47 transitions, 115 flow [2024-11-07 23:41:33,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 42 transitions, 99 flow [2024-11-07 23:41:33,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:41:33,485 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;@3012814b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:41:33,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-07 23:41:33,487 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:41:33,487 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:41:33,487 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:41:33,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:33,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:41:33,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:33,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:33,493 INFO L85 PathProgramCache]: Analyzing trace with hash 463819, now seen corresponding path program 1 times [2024-11-07 23:41:33,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:33,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447621804] [2024-11-07 23:41:33,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:33,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:33,671 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 23:41:33,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:33,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447621804] [2024-11-07 23:41:33,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447621804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:33,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:41:33,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:41:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492959026] [2024-11-07 23:41:33,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:33,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:41:33,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:41:33,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:41:33,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 23:41:33,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 23:41:33,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:33,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 23:41:33,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:33,942 INFO L124 PetriNetUnfolderBase]: 431/838 cut-off events. [2024-11-07 23:41:33,942 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-07 23:41:33,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 838 events. 431/838 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4400 event pairs, 306 based on Foata normal form. 1/769 useless extension candidates. Maximal degree in co-relation 1370. Up to 625 conditions per place. [2024-11-07 23:41:33,954 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 25 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2024-11-07 23:41:33,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 163 flow [2024-11-07 23:41:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:41:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:41:33,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-07 23:41:33,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5691489361702128 [2024-11-07 23:41:33,966 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 99 flow. Second operand 4 states and 107 transitions. [2024-11-07 23:41:33,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 163 flow [2024-11-07 23:41:33,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 45 transitions, 154 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 23:41:33,971 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 119 flow [2024-11-07 23:41:33,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-07 23:41:33,976 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2024-11-07 23:41:33,976 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 119 flow [2024-11-07 23:41:33,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 23:41:33,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:33,977 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-07 23:41:33,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:41:33,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:33,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash 933185111, now seen corresponding path program 1 times [2024-11-07 23:41:33,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:33,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426920698] [2024-11-07 23:41:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:34,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426920698] [2024-11-07 23:41:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426920698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620791595] [2024-11-07 23:41:34,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:34,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:34,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:34,121 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 23:41:34,123 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 23:41:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:34,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:41:34,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:34,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:41:34,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620791595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:34,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:41:34,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:41:34,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245650328] [2024-11-07 23:41:34,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:34,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:41:34,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:34,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:41:34,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:41:34,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 23:41:34,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 119 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 23:41:34,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:34,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 23:41:34,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:34,384 INFO L124 PetriNetUnfolderBase]: 431/837 cut-off events. [2024-11-07 23:41:34,385 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-07 23:41:34,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 837 events. 431/837 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4413 event pairs, 306 based on Foata normal form. 1/769 useless extension candidates. Maximal degree in co-relation 1488. Up to 620 conditions per place. [2024-11-07 23:41:34,389 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 21 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2024-11-07 23:41:34,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 44 transitions, 171 flow [2024-11-07 23:41:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:41:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:41:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2024-11-07 23:41:34,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5070921985815603 [2024-11-07 23:41:34,391 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 119 flow. Second operand 6 states and 143 transitions. [2024-11-07 23:41:34,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 44 transitions, 171 flow [2024-11-07 23:41:34,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 44 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:41:34,392 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 126 flow [2024-11-07 23:41:34,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2024-11-07 23:41:34,395 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2024-11-07 23:41:34,395 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 126 flow [2024-11-07 23:41:34,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 23:41:34,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:34,395 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:41:34,408 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 23:41:34,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:34,600 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:34,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:34,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1136032173, now seen corresponding path program 1 times [2024-11-07 23:41:34,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:34,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440497579] [2024-11-07 23:41:34,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:34,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:34,691 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 23:41:34,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:34,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440497579] [2024-11-07 23:41:34,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440497579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:34,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126020982] [2024-11-07 23:41:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:34,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:34,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:34,694 INFO L229 MonitoredProcess]: Starting monitored process 3 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 23:41:34,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 23:41:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:34,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:41:34,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:34,769 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 23:41:34,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:34,805 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 23:41:34,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126020982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:34,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:34,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-07 23:41:34,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434370206] [2024-11-07 23:41:34,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:34,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:41:34,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:34,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:41:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:41:34,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 23:41:34,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 126 flow. Second operand has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 12 states have internal predecessors, (241), 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 23:41:34,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:34,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 23:41:34,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:34,961 INFO L124 PetriNetUnfolderBase]: 434/849 cut-off events. [2024-11-07 23:41:34,961 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-07 23:41:34,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 849 events. 434/849 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4507 event pairs, 306 based on Foata normal form. 3/781 useless extension candidates. Maximal degree in co-relation 1489. Up to 627 conditions per place. [2024-11-07 23:41:34,965 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 24 selfloop transitions, 13 changer transitions 0/53 dead transitions. [2024-11-07 23:41:34,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 254 flow [2024-11-07 23:41:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:41:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:41:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 230 transitions. [2024-11-07 23:41:34,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48936170212765956 [2024-11-07 23:41:34,967 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 126 flow. Second operand 10 states and 230 transitions. [2024-11-07 23:41:34,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 254 flow [2024-11-07 23:41:34,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 208 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-07 23:41:34,968 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 178 flow [2024-11-07 23:41:34,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=178, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2024-11-07 23:41:34,969 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2024-11-07 23:41:34,969 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 178 flow [2024-11-07 23:41:34,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 12 states have internal predecessors, (241), 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 23:41:34,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:34,969 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:34,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 23:41:35,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:35,174 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:35,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1306776746, now seen corresponding path program 1 times [2024-11-07 23:41:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:35,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667796236] [2024-11-07 23:41:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:35,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:35,222 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 23:41:35,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:35,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667796236] [2024-11-07 23:41:35,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667796236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:35,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:41:35,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:41:35,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334747235] [2024-11-07 23:41:35,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:35,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:41:35,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:41:35,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:41:35,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-07 23:41:35,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 23:41:35,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:35,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-07 23:41:35,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:35,411 INFO L124 PetriNetUnfolderBase]: 1064/1851 cut-off events. [2024-11-07 23:41:35,412 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-07 23:41:35,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3497 conditions, 1851 events. 1064/1851 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10212 event pairs, 449 based on Foata normal form. 42/1791 useless extension candidates. Maximal degree in co-relation 3463. Up to 1096 conditions per place. [2024-11-07 23:41:35,418 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 65 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2024-11-07 23:41:35,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 83 transitions, 382 flow [2024-11-07 23:41:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:41:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:41:35,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-11-07 23:41:35,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6968085106382979 [2024-11-07 23:41:35,420 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 178 flow. Second operand 4 states and 131 transitions. [2024-11-07 23:41:35,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 83 transitions, 382 flow [2024-11-07 23:41:35,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 371 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-07 23:41:35,421 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 196 flow [2024-11-07 23:41:35,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2024-11-07 23:41:35,422 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 13 predicate places. [2024-11-07 23:41:35,422 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 196 flow [2024-11-07 23:41:35,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 23:41:35,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:35,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:35,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:41:35,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:35,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:35,423 INFO L85 PathProgramCache]: Analyzing trace with hash -800019145, now seen corresponding path program 1 times [2024-11-07 23:41:35,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:35,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907638778] [2024-11-07 23:41:35,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:35,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:35,470 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 23:41:35,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:35,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907638778] [2024-11-07 23:41:35,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907638778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:35,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:41:35,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:41:35,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219949389] [2024-11-07 23:41:35,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:35,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:41:35,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:35,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:41:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:41:35,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-07 23:41:35,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:41:35,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:35,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-07 23:41:35,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:35,694 INFO L124 PetriNetUnfolderBase]: 1708/2800 cut-off events. [2024-11-07 23:41:35,694 INFO L125 PetriNetUnfolderBase]: For 768/1056 co-relation queries the response was YES. [2024-11-07 23:41:35,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6064 conditions, 2800 events. 1708/2800 cut-off events. For 768/1056 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 15501 event pairs, 787 based on Foata normal form. 161/2844 useless extension candidates. Maximal degree in co-relation 6028. Up to 1698 conditions per place. [2024-11-07 23:41:35,707 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 69 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2024-11-07 23:41:35,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 88 transitions, 438 flow [2024-11-07 23:41:35,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:41:35,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:41:35,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2024-11-07 23:41:35,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6861702127659575 [2024-11-07 23:41:35,709 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 196 flow. Second operand 4 states and 129 transitions. [2024-11-07 23:41:35,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 88 transitions, 438 flow [2024-11-07 23:41:35,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 88 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:41:35,711 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 222 flow [2024-11-07 23:41:35,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2024-11-07 23:41:35,711 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-07 23:41:35,711 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 222 flow [2024-11-07 23:41:35,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:41:35,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:35,712 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:35,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:41:35,712 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:35,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:35,712 INFO L85 PathProgramCache]: Analyzing trace with hash 391459851, now seen corresponding path program 1 times [2024-11-07 23:41:35,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:35,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435645986] [2024-11-07 23:41:35,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:35,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:35,761 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 23:41:35,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:35,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435645986] [2024-11-07 23:41:35,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435645986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:35,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:41:35,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:41:35,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978823183] [2024-11-07 23:41:35,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:35,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:41:35,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:35,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:41:35,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:41:35,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-07 23:41:35,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 23:41:35,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:35,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-07 23:41:35,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:35,904 INFO L124 PetriNetUnfolderBase]: 1059/1900 cut-off events. [2024-11-07 23:41:35,905 INFO L125 PetriNetUnfolderBase]: For 779/1073 co-relation queries the response was YES. [2024-11-07 23:41:35,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4286 conditions, 1900 events. 1059/1900 cut-off events. For 779/1073 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 10945 event pairs, 724 based on Foata normal form. 104/1880 useless extension candidates. Maximal degree in co-relation 4255. Up to 1469 conditions per place. [2024-11-07 23:41:35,915 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 37 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-11-07 23:41:35,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 58 transitions, 297 flow [2024-11-07 23:41:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:41:35,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:41:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2024-11-07 23:41:35,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2024-11-07 23:41:35,915 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 222 flow. Second operand 3 states and 90 transitions. [2024-11-07 23:41:35,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 58 transitions, 297 flow [2024-11-07 23:41:35,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 58 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:41:35,920 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 220 flow [2024-11-07 23:41:35,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-11-07 23:41:35,921 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-07 23:41:35,921 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 220 flow [2024-11-07 23:41:35,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 23:41:35,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:35,922 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:35,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:41:35,922 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:35,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:35,922 INFO L85 PathProgramCache]: Analyzing trace with hash -620814593, now seen corresponding path program 1 times [2024-11-07 23:41:35,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:35,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756792577] [2024-11-07 23:41:35,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:35,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:35,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:41:35,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:35,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756792577] [2024-11-07 23:41:35,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756792577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:35,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:41:35,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:41:35,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718604530] [2024-11-07 23:41:35,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:35,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:41:35,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:35,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:41:35,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:41:36,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-07 23:41:36,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 220 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 23:41:36,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:36,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-07 23:41:36,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:36,221 INFO L124 PetriNetUnfolderBase]: 1495/2292 cut-off events. [2024-11-07 23:41:36,221 INFO L125 PetriNetUnfolderBase]: For 924/1368 co-relation queries the response was YES. [2024-11-07 23:41:36,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5396 conditions, 2292 events. 1495/2292 cut-off events. For 924/1368 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 11475 event pairs, 388 based on Foata normal form. 232/2400 useless extension candidates. Maximal degree in co-relation 5372. Up to 786 conditions per place. [2024-11-07 23:41:36,235 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 63 selfloop transitions, 8 changer transitions 0/87 dead transitions. [2024-11-07 23:41:36,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 87 transitions, 464 flow [2024-11-07 23:41:36,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:41:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:41:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-11-07 23:41:36,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914893617021276 [2024-11-07 23:41:36,237 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 220 flow. Second operand 5 states and 139 transitions. [2024-11-07 23:41:36,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 87 transitions, 464 flow [2024-11-07 23:41:36,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 87 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:41:36,239 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 230 flow [2024-11-07 23:41:36,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2024-11-07 23:41:36,240 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2024-11-07 23:41:36,240 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 230 flow [2024-11-07 23:41:36,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 23:41:36,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:36,241 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-07 23:41:36,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:41:36,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:36,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:36,241 INFO L85 PathProgramCache]: Analyzing trace with hash 957423199, now seen corresponding path program 2 times [2024-11-07 23:41:36,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:36,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592050942] [2024-11-07 23:41:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:36,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:36,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:36,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592050942] [2024-11-07 23:41:36,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592050942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:36,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876753105] [2024-11-07 23:41:36,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:41:36,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:36,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:36,404 INFO L229 MonitoredProcess]: Starting monitored process 4 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 23:41:36,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 23:41:36,453 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:41:36,454 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:41:36,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:41:36,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:41:36,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:41:36,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876753105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:36,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:36,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-07 23:41:36,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195116934] [2024-11-07 23:41:36,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:36,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:41:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:36,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:41:36,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:41:36,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 23:41:36,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 57 transitions, 230 flow. Second operand has 14 states, 14 states have (on average 20.142857142857142) internal successors, (282), 14 states have internal predecessors, (282), 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 23:41:36,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:36,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 23:41:36,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:36,793 INFO L124 PetriNetUnfolderBase]: 1060/1831 cut-off events. [2024-11-07 23:41:36,794 INFO L125 PetriNetUnfolderBase]: For 805/1099 co-relation queries the response was YES. [2024-11-07 23:41:36,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4407 conditions, 1831 events. 1060/1831 cut-off events. For 805/1099 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 10048 event pairs, 724 based on Foata normal form. 105/1885 useless extension candidates. Maximal degree in co-relation 4368. Up to 1461 conditions per place. [2024-11-07 23:41:36,803 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 24 selfloop transitions, 18 changer transitions 0/59 dead transitions. [2024-11-07 23:41:36,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 59 transitions, 322 flow [2024-11-07 23:41:36,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:41:36,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:41:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 306 transitions. [2024-11-07 23:41:36,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46504559270516715 [2024-11-07 23:41:36,805 INFO L175 Difference]: Start difference. First operand has 67 places, 57 transitions, 230 flow. Second operand 14 states and 306 transitions. [2024-11-07 23:41:36,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 59 transitions, 322 flow [2024-11-07 23:41:36,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 59 transitions, 292 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-07 23:41:36,808 INFO L231 Difference]: Finished difference. Result has 71 places, 59 transitions, 244 flow [2024-11-07 23:41:36,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=244, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2024-11-07 23:41:36,809 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 23 predicate places. [2024-11-07 23:41:36,809 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 244 flow [2024-11-07 23:41:36,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.142857142857142) internal successors, (282), 14 states have internal predecessors, (282), 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 23:41:36,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:36,809 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:36,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 23:41:37,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:37,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:37,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:37,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2065382697, now seen corresponding path program 1 times [2024-11-07 23:41:37,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:37,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658682632] [2024-11-07 23:41:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:37,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:37,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:37,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658682632] [2024-11-07 23:41:37,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658682632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:37,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690226571] [2024-11-07 23:41:37,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:37,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:37,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:37,100 INFO L229 MonitoredProcess]: Starting monitored process 5 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 23:41:37,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 23:41:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:37,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:41:37,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:41:37,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:41:37,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690226571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:37,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:41:37,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-11-07 23:41:37,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298388720] [2024-11-07 23:41:37,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:37,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:41:37,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:37,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:41:37,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:41:37,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-07 23:41:37,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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 23:41:37,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:37,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-07 23:41:37,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:37,458 INFO L124 PetriNetUnfolderBase]: 1793/2592 cut-off events. [2024-11-07 23:41:37,458 INFO L125 PetriNetUnfolderBase]: For 1064/1583 co-relation queries the response was YES. [2024-11-07 23:41:37,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6207 conditions, 2592 events. 1793/2592 cut-off events. For 1064/1583 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 12167 event pairs, 556 based on Foata normal form. 178/2563 useless extension candidates. Maximal degree in co-relation 6117. Up to 1163 conditions per place. [2024-11-07 23:41:37,471 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 62 selfloop transitions, 11 changer transitions 3/90 dead transitions. [2024-11-07 23:41:37,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 90 transitions, 502 flow [2024-11-07 23:41:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:41:37,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:41:37,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-11-07 23:41:37,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5425531914893617 [2024-11-07 23:41:37,473 INFO L175 Difference]: Start difference. First operand has 71 places, 59 transitions, 244 flow. Second operand 6 states and 153 transitions. [2024-11-07 23:41:37,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 90 transitions, 502 flow [2024-11-07 23:41:37,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 434 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-07 23:41:37,477 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 214 flow [2024-11-07 23:41:37,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2024-11-07 23:41:37,477 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-07 23:41:37,477 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 214 flow [2024-11-07 23:41:37,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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 23:41:37,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:37,477 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:37,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 23:41:37,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 23:41:37,678 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:37,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:37,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1701806038, now seen corresponding path program 1 times [2024-11-07 23:41:37,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:37,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012505837] [2024-11-07 23:41:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:37,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:41:37,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:37,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012505837] [2024-11-07 23:41:37,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012505837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:37,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575671463] [2024-11-07 23:41:37,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:37,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:37,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:37,733 INFO L229 MonitoredProcess]: Starting monitored process 6 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 23:41:37,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 23:41:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:37,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:41:37,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:37,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:37,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575671463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:37,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:37,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-07 23:41:37,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713775113] [2024-11-07 23:41:37,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:37,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:41:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:37,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:41:37,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:41:38,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-07 23:41:38,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 214 flow. Second operand has 19 states, 19 states have (on average 17.0) internal successors, (323), 19 states have internal predecessors, (323), 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 23:41:38,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:38,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-07 23:41:38,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:38,769 INFO L124 PetriNetUnfolderBase]: 3700/5762 cut-off events. [2024-11-07 23:41:38,769 INFO L125 PetriNetUnfolderBase]: For 4009/4689 co-relation queries the response was YES. [2024-11-07 23:41:38,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15178 conditions, 5762 events. 3700/5762 cut-off events. For 4009/4689 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 33959 event pairs, 618 based on Foata normal form. 340/5977 useless extension candidates. Maximal degree in co-relation 8930. Up to 860 conditions per place. [2024-11-07 23:41:38,792 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 154 selfloop transitions, 25 changer transitions 6/197 dead transitions. [2024-11-07 23:41:38,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 197 transitions, 1080 flow [2024-11-07 23:41:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:41:38,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:41:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 361 transitions. [2024-11-07 23:41:38,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5486322188449848 [2024-11-07 23:41:38,794 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 214 flow. Second operand 14 states and 361 transitions. [2024-11-07 23:41:38,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 197 transitions, 1080 flow [2024-11-07 23:41:38,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 197 transitions, 1063 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:41:38,806 INFO L231 Difference]: Finished difference. Result has 74 places, 63 transitions, 277 flow [2024-11-07 23:41:38,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=277, PETRI_PLACES=74, PETRI_TRANSITIONS=63} [2024-11-07 23:41:38,807 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-07 23:41:38,807 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 63 transitions, 277 flow [2024-11-07 23:41:38,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.0) internal successors, (323), 19 states have internal predecessors, (323), 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 23:41:38,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:38,808 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:38,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 23:41:39,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 23:41:39,012 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:39,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:39,012 INFO L85 PathProgramCache]: Analyzing trace with hash 746214022, now seen corresponding path program 1 times [2024-11-07 23:41:39,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:39,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745098662] [2024-11-07 23:41:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:39,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:41:39,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:39,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745098662] [2024-11-07 23:41:39,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745098662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:39,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452833461] [2024-11-07 23:41:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:39,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:39,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:39,088 INFO L229 MonitoredProcess]: Starting monitored process 7 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 23:41:39,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 23:41:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:39,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 23:41:39,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:39,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:41:39,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:39,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:41:39,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452833461] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:39,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:39,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-07 23:41:39,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076449533] [2024-11-07 23:41:39,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:39,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 23:41:39,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:39,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 23:41:39,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-07 23:41:39,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-07 23:41:39,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 63 transitions, 277 flow. Second operand has 16 states, 16 states have (on average 19.6875) internal successors, (315), 16 states have internal predecessors, (315), 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 23:41:39,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:39,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-07 23:41:39,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:39,676 INFO L124 PetriNetUnfolderBase]: 2424/3884 cut-off events. [2024-11-07 23:41:39,676 INFO L125 PetriNetUnfolderBase]: For 3401/3651 co-relation queries the response was YES. [2024-11-07 23:41:39,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10825 conditions, 3884 events. 2424/3884 cut-off events. For 3401/3651 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 21603 event pairs, 1687 based on Foata normal form. 111/3901 useless extension candidates. Maximal degree in co-relation 7079. Up to 2669 conditions per place. [2024-11-07 23:41:39,693 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 30 selfloop transitions, 12 changer transitions 35/92 dead transitions. [2024-11-07 23:41:39,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 92 transitions, 541 flow [2024-11-07 23:41:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 23:41:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 23:41:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 203 transitions. [2024-11-07 23:41:39,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5398936170212766 [2024-11-07 23:41:39,695 INFO L175 Difference]: Start difference. First operand has 74 places, 63 transitions, 277 flow. Second operand 8 states and 203 transitions. [2024-11-07 23:41:39,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 92 transitions, 541 flow [2024-11-07 23:41:39,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 92 transitions, 497 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-11-07 23:41:39,700 INFO L231 Difference]: Finished difference. Result has 76 places, 57 transitions, 241 flow [2024-11-07 23:41:39,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=241, PETRI_PLACES=76, PETRI_TRANSITIONS=57} [2024-11-07 23:41:39,701 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 28 predicate places. [2024-11-07 23:41:39,701 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 57 transitions, 241 flow [2024-11-07 23:41:39,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.6875) internal successors, (315), 16 states have internal predecessors, (315), 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 23:41:39,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:39,701 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:39,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-07 23:41:39,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 23:41:39,906 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:39,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:39,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1009363834, now seen corresponding path program 1 times [2024-11-07 23:41:39,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:39,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713204412] [2024-11-07 23:41:39,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:39,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:41:39,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:39,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713204412] [2024-11-07 23:41:39,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713204412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:39,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353656805] [2024-11-07 23:41:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:39,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:39,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:39,958 INFO L229 MonitoredProcess]: Starting monitored process 8 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 23:41:39,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 23:41:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:40,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:41:40,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:41:40,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:41:40,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353656805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:40,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:40,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:41:40,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925280481] [2024-11-07 23:41:40,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:40,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:41:40,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:40,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:41:40,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:41:40,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-07 23:41:40,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 57 transitions, 241 flow. Second operand has 12 states, 12 states have (on average 19.916666666666668) internal successors, (239), 12 states have internal predecessors, (239), 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 23:41:40,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:40,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-07 23:41:40,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:40,599 INFO L124 PetriNetUnfolderBase]: 4141/6600 cut-off events. [2024-11-07 23:41:40,599 INFO L125 PetriNetUnfolderBase]: For 6142/7245 co-relation queries the response was YES. [2024-11-07 23:41:40,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17879 conditions, 6600 events. 4141/6600 cut-off events. For 6142/7245 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 37380 event pairs, 847 based on Foata normal form. 536/7107 useless extension candidates. Maximal degree in co-relation 17803. Up to 2281 conditions per place. [2024-11-07 23:41:40,630 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 172 selfloop transitions, 13 changer transitions 0/198 dead transitions. [2024-11-07 23:41:40,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 198 transitions, 1149 flow [2024-11-07 23:41:40,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:41:40,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:41:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 328 transitions. [2024-11-07 23:41:40,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6978723404255319 [2024-11-07 23:41:40,631 INFO L175 Difference]: Start difference. First operand has 76 places, 57 transitions, 241 flow. Second operand 10 states and 328 transitions. [2024-11-07 23:41:40,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 198 transitions, 1149 flow [2024-11-07 23:41:40,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 198 transitions, 1070 flow, removed 20 selfloop flow, removed 9 redundant places. [2024-11-07 23:41:40,687 INFO L231 Difference]: Finished difference. Result has 74 places, 66 transitions, 280 flow [2024-11-07 23:41:40,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=280, PETRI_PLACES=74, PETRI_TRANSITIONS=66} [2024-11-07 23:41:40,689 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-07 23:41:40,689 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 66 transitions, 280 flow [2024-11-07 23:41:40,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.916666666666668) internal successors, (239), 12 states have internal predecessors, (239), 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 23:41:40,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:40,689 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:40,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-07 23:41:40,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:40,890 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:40,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1426246022, now seen corresponding path program 2 times [2024-11-07 23:41:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:40,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021302229] [2024-11-07 23:41:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:41:40,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:40,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021302229] [2024-11-07 23:41:40,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021302229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:40,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83729190] [2024-11-07 23:41:40,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:41:40,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:40,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:40,963 INFO L229 MonitoredProcess]: Starting monitored process 9 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 23:41:40,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 23:41:41,018 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 23:41:41,018 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:41:41,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:41:41,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:41,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:41:41,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:41:41,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83729190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:41:41,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:41:41,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-07 23:41:41,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190668320] [2024-11-07 23:41:41,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:41:41,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:41:41,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:41,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:41:41,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:41:41,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-07 23:41:41,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 66 transitions, 280 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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 23:41:41,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:41,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-07 23:41:41,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:41,452 INFO L124 PetriNetUnfolderBase]: 5266/7805 cut-off events. [2024-11-07 23:41:41,452 INFO L125 PetriNetUnfolderBase]: For 9032/9612 co-relation queries the response was YES. [2024-11-07 23:41:41,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22553 conditions, 7805 events. 5266/7805 cut-off events. For 9032/9612 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 42922 event pairs, 685 based on Foata normal form. 250/7811 useless extension candidates. Maximal degree in co-relation 18274. Up to 3135 conditions per place. [2024-11-07 23:41:41,488 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 86 selfloop transitions, 7 changer transitions 0/107 dead transitions. [2024-11-07 23:41:41,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 107 transitions, 678 flow [2024-11-07 23:41:41,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:41:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:41:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-11-07 23:41:41,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6329787234042553 [2024-11-07 23:41:41,490 INFO L175 Difference]: Start difference. First operand has 74 places, 66 transitions, 280 flow. Second operand 4 states and 119 transitions. [2024-11-07 23:41:41,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 107 transitions, 678 flow [2024-11-07 23:41:41,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 107 transitions, 649 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-07 23:41:41,501 INFO L231 Difference]: Finished difference. Result has 74 places, 65 transitions, 279 flow [2024-11-07 23:41:41,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2024-11-07 23:41:41,502 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-07 23:41:41,502 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 279 flow [2024-11-07 23:41:41,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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 23:41:41,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:41,502 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:41,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 23:41:41,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:41,703 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:41,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:41,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1263953229, now seen corresponding path program 1 times [2024-11-07 23:41:41,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:41,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757310514] [2024-11-07 23:41:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:41,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:41:41,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:41,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757310514] [2024-11-07 23:41:41,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757310514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:41,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623787026] [2024-11-07 23:41:41,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:41,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:41,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:41,765 INFO L229 MonitoredProcess]: Starting monitored process 10 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 23:41:41,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 23:41:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:41,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 23:41:41,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:41,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:42,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623787026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:42,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:42,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 24 [2024-11-07 23:41:42,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74397854] [2024-11-07 23:41:42,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:42,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 23:41:42,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:42,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 23:41:42,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-11-07 23:41:42,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-07 23:41:42,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 279 flow. Second operand has 24 states, 24 states have (on average 17.041666666666668) internal successors, (409), 24 states have internal predecessors, (409), 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 23:41:42,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:42,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-07 23:41:42,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:43,401 INFO L124 PetriNetUnfolderBase]: 10706/15992 cut-off events. [2024-11-07 23:41:43,401 INFO L125 PetriNetUnfolderBase]: For 19679/20883 co-relation queries the response was YES. [2024-11-07 23:41:43,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47510 conditions, 15992 events. 10706/15992 cut-off events. For 19679/20883 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 98983 event pairs, 2903 based on Foata normal form. 492/16449 useless extension candidates. Maximal degree in co-relation 38642. Up to 4284 conditions per place. [2024-11-07 23:41:43,481 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 223 selfloop transitions, 25 changer transitions 9/271 dead transitions. [2024-11-07 23:41:43,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 271 transitions, 1754 flow [2024-11-07 23:41:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 23:41:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 23:41:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 418 transitions. [2024-11-07 23:41:43,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.523153942428035 [2024-11-07 23:41:43,482 INFO L175 Difference]: Start difference. First operand has 74 places, 65 transitions, 279 flow. Second operand 17 states and 418 transitions. [2024-11-07 23:41:43,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 271 transitions, 1754 flow [2024-11-07 23:41:43,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 271 transitions, 1724 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:41:43,517 INFO L231 Difference]: Finished difference. Result has 90 places, 73 transitions, 366 flow [2024-11-07 23:41:43,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=366, PETRI_PLACES=90, PETRI_TRANSITIONS=73} [2024-11-07 23:41:43,517 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 42 predicate places. [2024-11-07 23:41:43,517 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 73 transitions, 366 flow [2024-11-07 23:41:43,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 17.041666666666668) internal successors, (409), 24 states have internal predecessors, (409), 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 23:41:43,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:43,518 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:43,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 23:41:43,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:43,722 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:43,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:43,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1922283326, now seen corresponding path program 2 times [2024-11-07 23:41:43,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:43,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819160857] [2024-11-07 23:41:43,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:43,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:41:43,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:43,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819160857] [2024-11-07 23:41:43,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819160857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:43,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967397300] [2024-11-07 23:41:43,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:41:43,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:43,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:43,978 INFO L229 MonitoredProcess]: Starting monitored process 11 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 23:41:43,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 23:41:44,036 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:41:44,036 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:41:44,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:41:44,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-07 23:41:44,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-07 23:41:44,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967397300] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:44,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:44,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 3, 3] total 17 [2024-11-07 23:41:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693258970] [2024-11-07 23:41:44,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:44,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 23:41:44,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 23:41:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-07 23:41:44,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-07 23:41:44,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 73 transitions, 366 flow. Second operand has 18 states, 18 states have (on average 17.22222222222222) internal successors, (310), 18 states have internal predecessors, (310), 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 23:41:44,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:44,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-07 23:41:44,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:45,986 INFO L124 PetriNetUnfolderBase]: 15477/22764 cut-off events. [2024-11-07 23:41:45,986 INFO L125 PetriNetUnfolderBase]: For 30203/32022 co-relation queries the response was YES. [2024-11-07 23:41:46,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70613 conditions, 22764 events. 15477/22764 cut-off events. For 30203/32022 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 146748 event pairs, 3203 based on Foata normal form. 418/23000 useless extension candidates. Maximal degree in co-relation 57436. Up to 4389 conditions per place. [2024-11-07 23:41:46,075 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 198 selfloop transitions, 32 changer transitions 12/256 dead transitions. [2024-11-07 23:41:46,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 256 transitions, 1715 flow [2024-11-07 23:41:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 23:41:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-07 23:41:46,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 420 transitions. [2024-11-07 23:41:46,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49645390070921985 [2024-11-07 23:41:46,076 INFO L175 Difference]: Start difference. First operand has 90 places, 73 transitions, 366 flow. Second operand 18 states and 420 transitions. [2024-11-07 23:41:46,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 256 transitions, 1715 flow [2024-11-07 23:41:46,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 256 transitions, 1669 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-07 23:41:46,190 INFO L231 Difference]: Finished difference. Result has 101 places, 81 transitions, 459 flow [2024-11-07 23:41:46,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=459, PETRI_PLACES=101, PETRI_TRANSITIONS=81} [2024-11-07 23:41:46,190 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 53 predicate places. [2024-11-07 23:41:46,191 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 81 transitions, 459 flow [2024-11-07 23:41:46,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 17.22222222222222) internal successors, (310), 18 states have internal predecessors, (310), 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 23:41:46,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:41:46,191 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-07 23:41:46,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 23:41:46,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 23:41:46,391 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:41:46,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:41:46,392 INFO L85 PathProgramCache]: Analyzing trace with hash -796289542, now seen corresponding path program 2 times [2024-11-07 23:41:46,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:41:46,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369430760] [2024-11-07 23:41:46,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:41:46,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:41:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:41:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-07 23:41:46,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:41:46,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369430760] [2024-11-07 23:41:46,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369430760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:41:46,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822951885] [2024-11-07 23:41:46,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:41:46,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:41:46,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:41:46,487 INFO L229 MonitoredProcess]: Starting monitored process 12 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 23:41:46,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 23:41:46,536 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:41:46,537 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:41:46,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:41:46,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:41:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-07 23:41:46,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:41:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-07 23:41:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822951885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:41:46,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:41:46,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-07 23:41:46,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079908117] [2024-11-07 23:41:46,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:41:46,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 23:41:46,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:41:46,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 23:41:46,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-07 23:41:46,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-07 23:41:46,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 81 transitions, 459 flow. Second operand has 13 states, 13 states have (on average 17.307692307692307) internal successors, (225), 13 states have internal predecessors, (225), 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 23:41:46,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:41:46,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-07 23:41:46,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:41:48,164 INFO L124 PetriNetUnfolderBase]: 16641/25323 cut-off events. [2024-11-07 23:41:48,165 INFO L125 PetriNetUnfolderBase]: For 51577/53294 co-relation queries the response was YES. [2024-11-07 23:41:48,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80589 conditions, 25323 events. 16641/25323 cut-off events. For 51577/53294 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 170334 event pairs, 3142 based on Foata normal form. 808/25948 useless extension candidates. Maximal degree in co-relation 61945. Up to 6453 conditions per place. [2024-11-07 23:41:48,240 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 0 selfloop transitions, 0 changer transitions 269/269 dead transitions. [2024-11-07 23:41:48,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 269 transitions, 1985 flow [2024-11-07 23:41:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 23:41:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 23:41:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 395 transitions. [2024-11-07 23:41:48,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5252659574468085 [2024-11-07 23:41:48,241 INFO L175 Difference]: Start difference. First operand has 101 places, 81 transitions, 459 flow. Second operand 16 states and 395 transitions. [2024-11-07 23:41:48,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 269 transitions, 1985 flow [2024-11-07 23:41:48,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 269 transitions, 1922 flow, removed 15 selfloop flow, removed 12 redundant places. [2024-11-07 23:41:48,369 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2024-11-07 23:41:48,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2024-11-07 23:41:48,370 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 55 predicate places. [2024-11-07 23:41:48,370 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2024-11-07 23:41:48,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.307692307692307) internal successors, (225), 13 states have internal predecessors, (225), 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 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 17 remaining) [2024-11-07 23:41:48,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-07 23:41:48,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-07 23:41:48,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-07 23:41:48,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-07 23:41:48,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-07 23:41:48,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-07 23:41:48,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 23:41:48,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 23:41:48,574 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:41:48,577 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:41:48,577 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:41:48,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:41:48 BasicIcfg [2024-11-07 23:41:48,580 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:41:48,580 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:41:48,580 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:41:48,580 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:41:48,581 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:41:33" (3/4) ... [2024-11-07 23:41:48,582 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:41:48,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 23:41:48,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 23:41:48,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-07 23:41:48,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2024-11-07 23:41:48,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-07 23:41:48,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-07 23:41:48,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:41:48,631 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:41:48,632 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:41:48,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:41:48,632 INFO L158 Benchmark]: Toolchain (without parser) took 16040.18ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 956.3MB). Free memory was 92.8MB in the beginning and 195.5MB in the end (delta: -102.7MB). Peak memory consumption was 850.9MB. Max. memory is 16.1GB. [2024-11-07 23:41:48,632 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 117.4MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:41:48,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.32ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:41:48,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.54ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:41:48,633 INFO L158 Benchmark]: Boogie Preprocessor took 35.53ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:41:48,633 INFO L158 Benchmark]: RCFGBuilder took 543.99ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 86.7MB in the end (delta: -9.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2024-11-07 23:41:48,633 INFO L158 Benchmark]: TraceAbstraction took 15223.92ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 956.3MB). Free memory was 86.2MB in the beginning and 199.9MB in the end (delta: -113.7MB). Peak memory consumption was 964.1MB. Max. memory is 16.1GB. [2024-11-07 23:41:48,634 INFO L158 Benchmark]: Witness Printer took 51.41ms. Allocated memory is still 1.1GB. Free memory was 199.9MB in the beginning and 195.5MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:41:48,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 117.4MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.32ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.54ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.53ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 543.99ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 86.7MB in the end (delta: -9.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15223.92ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 956.3MB). Free memory was 86.2MB in the beginning and 199.9MB in the end (delta: -113.7MB). Peak memory consumption was 964.1MB. Max. memory is 16.1GB. * Witness Printer took 51.41ms. Allocated memory is still 1.1GB. Free memory was 199.9MB in the beginning and 195.5MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 74 locations, 17 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.1s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1861 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1773 mSDsluCounter, 1234 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1211 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6107 IncrementalHoareTripleChecker+Invalid, 6162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 23 mSDtfsCounter, 6107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 512 GetRequests, 289 SyntacticMatches, 7 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=459occurred in iteration=15, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 462 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 591 ConstructedInterpolants, 0 QuantifiedInterpolants, 1927 SizeOfPredicates, 38 NumberOfNonLiveVariables, 1137 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 35 InterpolantComputations, 8 PerfectInterpolantSequences, 272/460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:41:48,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE