./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/array-eq-symm.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/array-eq-symm.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', '6897befed0dbbae24492a1e82d50fcd0be6b3857b241d882a904d02a513d7a6d'] 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/array-eq-symm.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 6897befed0dbbae24492a1e82d50fcd0be6b3857b241d882a904d02a513d7a6d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:35:28,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:35:28,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:35:28,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:35:28,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:35:28,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:35:28,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:35:28,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:35:28,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:35:28,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:35:28,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:35:28,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:35:28,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:35:28,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:35:28,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:35:28,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:35:28,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:35:28,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:35:28,386 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 -> 6897befed0dbbae24492a1e82d50fcd0be6b3857b241d882a904d02a513d7a6d [2024-11-07 23:35:28,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:35:28,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:35:28,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:35:28,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:35:28,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:35:28,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2024-11-07 23:35:29,731 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:35:29,950 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:35:29,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2024-11-07 23:35:29,962 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4799771c5/e02632cca60c4ebea74dad384c19feb0/FLAGd882a9bd9 [2024-11-07 23:35:29,977 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4799771c5/e02632cca60c4ebea74dad384c19feb0 [2024-11-07 23:35:29,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:35:29,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:35:29,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:35:29,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:35:29,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:35:29,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:35:29" (1/1) ... [2024-11-07 23:35:29,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc55cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:29, skipping insertion in model container [2024-11-07 23:35:29,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:35:29" (1/1) ... [2024-11-07 23:35:30,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:35:30,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:35:30,149 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:35:30,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:35:30,181 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:35:30,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30 WrapperNode [2024-11-07 23:35:30,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:35:30,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:35:30,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:35:30,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:35:30,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,211 INFO L138 Inliner]: procedures = 22, calls = 20, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 111 [2024-11-07 23:35:30,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:35:30,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:35:30,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:35:30,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:35:30,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,229 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-07 23:35:30,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:35:30,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:35:30,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:35:30,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:35:30,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (1/1) ... [2024-11-07 23:35:30,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:35:30,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:30,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:35:30,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:35:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:35:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:35:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:35:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:35:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:35:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:35:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:35:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:35:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:35:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:35:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:35:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:35:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:35:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:35:30,294 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:35:30,368 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:35:30,369 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:35:30,551 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:35:30,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:35:30,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:35:30,715 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-07 23:35:30,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:35:30 BoogieIcfgContainer [2024-11-07 23:35:30,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:35:30,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:35:30,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:35:30,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:35:30,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:35:29" (1/3) ... [2024-11-07 23:35:30,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a44670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:35:30, skipping insertion in model container [2024-11-07 23:35:30,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:35:30" (2/3) ... [2024-11-07 23:35:30,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a44670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:35:30, skipping insertion in model container [2024-11-07 23:35:30,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:35:30" (3/3) ... [2024-11-07 23:35:30,721 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2024-11-07 23:35:30,731 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:35:30,731 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-07 23:35:30,731 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:35:30,773 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:35:30,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 42 transitions, 98 flow [2024-11-07 23:35:30,815 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2024-11-07 23:35:30,818 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 23:35:30,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 6/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-07 23:35:30,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 42 transitions, 98 flow [2024-11-07 23:35:30,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 38 transitions, 85 flow [2024-11-07 23:35:30,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:35:30,840 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;@2815457b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:35:30,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-07 23:35:30,843 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:35:30,843 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:35:30,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:35:30,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:30,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:35:30,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:30,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:30,847 INFO L85 PathProgramCache]: Analyzing trace with hash 466594, now seen corresponding path program 1 times [2024-11-07 23:35:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:30,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808269399] [2024-11-07 23:35:30,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:30,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:31,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:31,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808269399] [2024-11-07 23:35:31,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808269399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:31,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:31,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:31,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32925252] [2024-11-07 23:35:31,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:31,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:31,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:31,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:31,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:31,072 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-07 23:35:31,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:31,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:31,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-07 23:35:31,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:31,229 INFO L124 PetriNetUnfolderBase]: 170/329 cut-off events. [2024-11-07 23:35:31,229 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-07 23:35:31,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 329 events. 170/329 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1413 event pairs, 92 based on Foata normal form. 2/231 useless extension candidates. Maximal degree in co-relation 554. Up to 256 conditions per place. [2024-11-07 23:35:31,235 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 20 selfloop transitions, 6 changer transitions 0/36 dead transitions. [2024-11-07 23:35:31,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 133 flow [2024-11-07 23:35:31,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-07 23:35:31,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-11-07 23:35:31,247 INFO L175 Difference]: Start difference. First operand has 39 places, 38 transitions, 85 flow. Second operand 4 states and 76 transitions. [2024-11-07 23:35:31,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 133 flow [2024-11-07 23:35:31,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 128 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:35:31,255 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 88 flow [2024-11-07 23:35:31,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2024-11-07 23:35:31,260 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2024-11-07 23:35:31,260 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 88 flow [2024-11-07 23:35:31,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:31,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:31,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:35:31,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:35:31,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:31,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:31,263 INFO L85 PathProgramCache]: Analyzing trace with hash 14464846, now seen corresponding path program 1 times [2024-11-07 23:35:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:31,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283456634] [2024-11-07 23:35:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:31,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:31,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:31,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283456634] [2024-11-07 23:35:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283456634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:31,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:31,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:31,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732589546] [2024-11-07 23:35:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:31,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:31,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:31,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-07 23:35:31,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:31,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:31,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-07 23:35:31,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:31,490 INFO L124 PetriNetUnfolderBase]: 172/337 cut-off events. [2024-11-07 23:35:31,490 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 23:35:31,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 337 events. 172/337 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1444 event pairs, 92 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 585. Up to 265 conditions per place. [2024-11-07 23:35:31,497 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 25 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2024-11-07 23:35:31,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 174 flow [2024-11-07 23:35:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:31,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:31,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-11-07 23:35:31,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-11-07 23:35:31,499 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 88 flow. Second operand 4 states and 82 transitions. [2024-11-07 23:35:31,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 174 flow [2024-11-07 23:35:31,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 152 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:35:31,502 INFO L231 Difference]: Finished difference. Result has 40 places, 42 transitions, 132 flow [2024-11-07 23:35:31,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=40, PETRI_TRANSITIONS=42} [2024-11-07 23:35:31,503 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2024-11-07 23:35:31,503 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 42 transitions, 132 flow [2024-11-07 23:35:31,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:31,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:31,504 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:35:31,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:35:31,504 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:31,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:31,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1425960662, now seen corresponding path program 1 times [2024-11-07 23:35:31,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:31,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688351991] [2024-11-07 23:35:31,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:31,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:31,635 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 23:35:31,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688351991] [2024-11-07 23:35:31,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688351991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224772578] [2024-11-07 23:35:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:31,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:31,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:31,637 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 23:35:31,639 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 23:35:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:31,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:35:31,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:31,723 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 23:35:31,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:31,765 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 23:35:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224772578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:31,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:31,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-07 23:35:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787083642] [2024-11-07 23:35:31,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:31,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 23:35:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 23:35:31,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-07 23:35:31,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-07 23:35:31,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 132 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:31,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:31,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-07 23:35:31,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:31,970 INFO L124 PetriNetUnfolderBase]: 178/361 cut-off events. [2024-11-07 23:35:31,970 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-07 23:35:31,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 361 events. 178/361 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1631 event pairs, 92 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 596. Up to 268 conditions per place. [2024-11-07 23:35:31,972 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 25 selfloop transitions, 25 changer transitions 0/60 dead transitions. [2024-11-07 23:35:31,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 310 flow [2024-11-07 23:35:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:35:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:35:31,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2024-11-07 23:35:31,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-11-07 23:35:31,974 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 132 flow. Second operand 10 states and 176 transitions. [2024-11-07 23:35:31,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 310 flow [2024-11-07 23:35:31,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 310 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:35:31,976 INFO L231 Difference]: Finished difference. Result has 52 places, 60 transitions, 294 flow [2024-11-07 23:35:31,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=52, PETRI_TRANSITIONS=60} [2024-11-07 23:35:31,976 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2024-11-07 23:35:31,976 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 60 transitions, 294 flow [2024-11-07 23:35:31,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:31,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:31,977 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:31,994 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 23:35:32,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:32,178 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:32,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:32,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1837290423, now seen corresponding path program 1 times [2024-11-07 23:35:32,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:32,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69126596] [2024-11-07 23:35:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:32,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:32,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:32,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69126596] [2024-11-07 23:35:32,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69126596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:32,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:32,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:32,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433602499] [2024-11-07 23:35:32,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:32,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:32,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:32,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:32,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:32,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-07 23:35:32,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 60 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:32,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:32,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-07 23:35:32,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:32,359 INFO L124 PetriNetUnfolderBase]: 202/382 cut-off events. [2024-11-07 23:35:32,360 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-07 23:35:32,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 382 events. 202/382 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1651 event pairs, 75 based on Foata normal form. 14/289 useless extension candidates. Maximal degree in co-relation 748. Up to 248 conditions per place. [2024-11-07 23:35:32,362 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 55 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-11-07 23:35:32,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 428 flow [2024-11-07 23:35:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:32,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:32,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-07 23:35:32,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-07 23:35:32,366 INFO L175 Difference]: Start difference. First operand has 52 places, 60 transitions, 294 flow. Second operand 4 states and 91 transitions. [2024-11-07 23:35:32,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 428 flow [2024-11-07 23:35:32,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 68 transitions, 364 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-07 23:35:32,369 INFO L231 Difference]: Finished difference. Result has 50 places, 59 transitions, 234 flow [2024-11-07 23:35:32,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=50, PETRI_TRANSITIONS=59} [2024-11-07 23:35:32,370 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 11 predicate places. [2024-11-07 23:35:32,370 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 59 transitions, 234 flow [2024-11-07 23:35:32,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:32,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:32,370 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:32,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:35:32,371 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:32,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1121427785, now seen corresponding path program 1 times [2024-11-07 23:35:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:32,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665266594] [2024-11-07 23:35:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:32,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:32,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665266594] [2024-11-07 23:35:32,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665266594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:32,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:32,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:32,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28981150] [2024-11-07 23:35:32,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:32,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:32,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:32,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:32,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-07 23:35:32,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 59 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:32,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:32,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-07 23:35:32,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:32,569 INFO L124 PetriNetUnfolderBase]: 308/559 cut-off events. [2024-11-07 23:35:32,570 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-07 23:35:32,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 559 events. 308/559 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2444 event pairs, 58 based on Foata normal form. 14/466 useless extension candidates. Maximal degree in co-relation 1135. Up to 271 conditions per place. [2024-11-07 23:35:32,576 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 71 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2024-11-07 23:35:32,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 84 transitions, 441 flow [2024-11-07 23:35:32,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:32,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-07 23:35:32,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2024-11-07 23:35:32,578 INFO L175 Difference]: Start difference. First operand has 50 places, 59 transitions, 234 flow. Second operand 4 states and 107 transitions. [2024-11-07 23:35:32,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 84 transitions, 441 flow [2024-11-07 23:35:32,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 84 transitions, 431 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:35:32,584 INFO L231 Difference]: Finished difference. Result has 52 places, 61 transitions, 248 flow [2024-11-07 23:35:32,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=52, PETRI_TRANSITIONS=61} [2024-11-07 23:35:32,585 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2024-11-07 23:35:32,585 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 61 transitions, 248 flow [2024-11-07 23:35:32,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:32,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:32,585 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:32,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:35:32,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:32,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:32,588 INFO L85 PathProgramCache]: Analyzing trace with hash -586243611, now seen corresponding path program 1 times [2024-11-07 23:35:32,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:32,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834209439] [2024-11-07 23:35:32,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:32,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:32,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:32,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834209439] [2024-11-07 23:35:32,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834209439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:32,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:32,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:35:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351685915] [2024-11-07 23:35:32,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:32,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:32,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:32,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-07 23:35:32,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 61 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:32,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:32,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-07 23:35:32,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:32,794 INFO L124 PetriNetUnfolderBase]: 511/904 cut-off events. [2024-11-07 23:35:32,794 INFO L125 PetriNetUnfolderBase]: For 195/209 co-relation queries the response was YES. [2024-11-07 23:35:32,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 904 events. 511/904 cut-off events. For 195/209 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4207 event pairs, 117 based on Foata normal form. 22/761 useless extension candidates. Maximal degree in co-relation 1913. Up to 451 conditions per place. [2024-11-07 23:35:32,799 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 75 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2024-11-07 23:35:32,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 480 flow [2024-11-07 23:35:32,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:32,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-11-07 23:35:32,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-11-07 23:35:32,801 INFO L175 Difference]: Start difference. First operand has 52 places, 61 transitions, 248 flow. Second operand 4 states and 106 transitions. [2024-11-07 23:35:32,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 480 flow [2024-11-07 23:35:32,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 87 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:35:32,803 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 268 flow [2024-11-07 23:35:32,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2024-11-07 23:35:32,804 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 17 predicate places. [2024-11-07 23:35:32,804 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 268 flow [2024-11-07 23:35:32,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:32,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:32,807 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:32,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:35:32,807 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:32,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash 549054843, now seen corresponding path program 1 times [2024-11-07 23:35:32,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:32,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126020982] [2024-11-07 23:35:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:32,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:35:32,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:32,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126020982] [2024-11-07 23:35:32,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126020982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:32,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:32,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:35:32,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193162714] [2024-11-07 23:35:32,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:32,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:32,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:32,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-07 23:35:32,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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 23:35:32,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:32,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-07 23:35:32,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:33,005 INFO L124 PetriNetUnfolderBase]: 542/1071 cut-off events. [2024-11-07 23:35:33,006 INFO L125 PetriNetUnfolderBase]: For 332/332 co-relation queries the response was YES. [2024-11-07 23:35:33,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2443 conditions, 1071 events. 542/1071 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5594 event pairs, 375 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 2358. Up to 698 conditions per place. [2024-11-07 23:35:33,012 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 66 selfloop transitions, 13 changer transitions 3/93 dead transitions. [2024-11-07 23:35:33,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 93 transitions, 549 flow [2024-11-07 23:35:33,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:35:33,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:35:33,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-11-07 23:35:33,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-07 23:35:33,015 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 268 flow. Second operand 5 states and 126 transitions. [2024-11-07 23:35:33,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 93 transitions, 549 flow [2024-11-07 23:35:33,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 93 transitions, 546 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:35:33,020 INFO L231 Difference]: Finished difference. Result has 61 places, 73 transitions, 386 flow [2024-11-07 23:35:33,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=386, PETRI_PLACES=61, PETRI_TRANSITIONS=73} [2024-11-07 23:35:33,021 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 22 predicate places. [2024-11-07 23:35:33,022 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 73 transitions, 386 flow [2024-11-07 23:35:33,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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 23:35:33,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:33,023 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:33,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:35:33,023 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:33,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:33,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1873333471, now seen corresponding path program 1 times [2024-11-07 23:35:33,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:33,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389717609] [2024-11-07 23:35:33,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:33,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:33,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:35:33,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:33,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389717609] [2024-11-07 23:35:33,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389717609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:33,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:33,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:35:33,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451698760] [2024-11-07 23:35:33,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:33,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:35:33,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:33,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:35:33,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:35:33,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-07 23:35:33,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 73 transitions, 386 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:33,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:33,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-07 23:35:33,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:33,267 INFO L124 PetriNetUnfolderBase]: 465/918 cut-off events. [2024-11-07 23:35:33,267 INFO L125 PetriNetUnfolderBase]: For 381/381 co-relation queries the response was YES. [2024-11-07 23:35:33,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2165 conditions, 918 events. 465/918 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4557 event pairs, 319 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 2066. Up to 698 conditions per place. [2024-11-07 23:35:33,271 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 50 selfloop transitions, 12 changer transitions 14/87 dead transitions. [2024-11-07 23:35:33,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 87 transitions, 581 flow [2024-11-07 23:35:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:35:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:35:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-11-07 23:35:33,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.580952380952381 [2024-11-07 23:35:33,272 INFO L175 Difference]: Start difference. First operand has 61 places, 73 transitions, 386 flow. Second operand 5 states and 122 transitions. [2024-11-07 23:35:33,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 87 transitions, 581 flow [2024-11-07 23:35:33,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 87 transitions, 577 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 23:35:33,275 INFO L231 Difference]: Finished difference. Result has 65 places, 72 transitions, 408 flow [2024-11-07 23:35:33,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=65, PETRI_TRANSITIONS=72} [2024-11-07 23:35:33,276 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 26 predicate places. [2024-11-07 23:35:33,276 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 72 transitions, 408 flow [2024-11-07 23:35:33,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:33,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:33,276 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-07 23:35:33,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:35:33,276 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:33,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:33,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2104009394, now seen corresponding path program 2 times [2024-11-07 23:35:33,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:33,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21633278] [2024-11-07 23:35:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:33,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:33,388 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 23:35:33,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21633278] [2024-11-07 23:35:33,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21633278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219949389] [2024-11-07 23:35:33,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:35:33,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:33,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:33,391 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 23:35:33,393 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 23:35:33,440 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:35:33,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:35:33,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:35:33,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:33,485 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 23:35:33,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:33,515 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 23:35:33,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219949389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:33,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:33,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-07 23:35:33,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192232588] [2024-11-07 23:35:33,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:33,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:35:33,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:33,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:35:33,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:35:33,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-07 23:35:33,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 72 transitions, 408 flow. Second operand has 14 states, 14 states have (on average 13.142857142857142) internal successors, (184), 14 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:33,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:33,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-07 23:35:33,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:33,847 INFO L124 PetriNetUnfolderBase]: 467/931 cut-off events. [2024-11-07 23:35:33,847 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-07 23:35:33,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 931 events. 467/931 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4782 event pairs, 319 based on Foata normal form. 4/930 useless extension candidates. Maximal degree in co-relation 2116. Up to 738 conditions per place. [2024-11-07 23:35:33,852 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 27 selfloop transitions, 43 changer transitions 0/79 dead transitions. [2024-11-07 23:35:33,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 79 transitions, 595 flow [2024-11-07 23:35:33,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 23:35:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 23:35:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 346 transitions. [2024-11-07 23:35:33,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34325396825396826 [2024-11-07 23:35:33,855 INFO L175 Difference]: Start difference. First operand has 65 places, 72 transitions, 408 flow. Second operand 24 states and 346 transitions. [2024-11-07 23:35:33,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 79 transitions, 595 flow [2024-11-07 23:35:33,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 557 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 23:35:33,859 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 524 flow [2024-11-07 23:35:33,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=524, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-11-07 23:35:33,860 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 45 predicate places. [2024-11-07 23:35:33,860 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 524 flow [2024-11-07 23:35:33,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.142857142857142) internal successors, (184), 14 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:33,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:33,861 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:33,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 23:35:34,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:34,062 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:34,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:34,063 INFO L85 PathProgramCache]: Analyzing trace with hash 681192179, now seen corresponding path program 1 times [2024-11-07 23:35:34,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:34,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029908909] [2024-11-07 23:35:34,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:34,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:35:34,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:34,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029908909] [2024-11-07 23:35:34,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029908909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:34,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:34,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:35:34,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793165320] [2024-11-07 23:35:34,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:34,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:35:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:34,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:35:34,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:35:34,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-07 23:35:34,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 524 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:34,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:34,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-07 23:35:34,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:34,307 INFO L124 PetriNetUnfolderBase]: 565/1102 cut-off events. [2024-11-07 23:35:34,307 INFO L125 PetriNetUnfolderBase]: For 564/586 co-relation queries the response was YES. [2024-11-07 23:35:34,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2700 conditions, 1102 events. 565/1102 cut-off events. For 564/586 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5695 event pairs, 238 based on Foata normal form. 22/1119 useless extension candidates. Maximal degree in co-relation 2605. Up to 407 conditions per place. [2024-11-07 23:35:34,312 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 86 selfloop transitions, 11 changer transitions 3/110 dead transitions. [2024-11-07 23:35:34,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 110 transitions, 819 flow [2024-11-07 23:35:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:35:34,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:35:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2024-11-07 23:35:34,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523809523809524 [2024-11-07 23:35:34,314 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 524 flow. Second operand 5 states and 137 transitions. [2024-11-07 23:35:34,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 110 transitions, 819 flow [2024-11-07 23:35:34,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 110 transitions, 707 flow, removed 13 selfloop flow, removed 11 redundant places. [2024-11-07 23:35:34,321 INFO L231 Difference]: Finished difference. Result has 78 places, 79 transitions, 437 flow [2024-11-07 23:35:34,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=437, PETRI_PLACES=78, PETRI_TRANSITIONS=79} [2024-11-07 23:35:34,321 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 39 predicate places. [2024-11-07 23:35:34,321 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 79 transitions, 437 flow [2024-11-07 23:35:34,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:34,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:34,322 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:34,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:35:34,322 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:34,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:34,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2072043351, now seen corresponding path program 1 times [2024-11-07 23:35:34,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:34,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081192952] [2024-11-07 23:35:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:34,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:35:34,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:34,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081192952] [2024-11-07 23:35:34,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081192952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:35:34,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:35:34,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:35:34,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718604530] [2024-11-07 23:35:34,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:35:34,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:35:34,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:34,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:35:34,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:35:34,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-07 23:35:34,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 79 transitions, 437 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:34,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:34,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-07 23:35:34,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:34,514 INFO L124 PetriNetUnfolderBase]: 488/971 cut-off events. [2024-11-07 23:35:34,514 INFO L125 PetriNetUnfolderBase]: For 574/584 co-relation queries the response was YES. [2024-11-07 23:35:34,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 971 events. 488/971 cut-off events. For 574/584 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4866 event pairs, 191 based on Foata normal form. 7/977 useless extension candidates. Maximal degree in co-relation 2321. Up to 429 conditions per place. [2024-11-07 23:35:34,525 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 72 selfloop transitions, 10 changer transitions 10/102 dead transitions. [2024-11-07 23:35:34,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 102 transitions, 690 flow [2024-11-07 23:35:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:35:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:35:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-07 23:35:34,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2024-11-07 23:35:34,526 INFO L175 Difference]: Start difference. First operand has 78 places, 79 transitions, 437 flow. Second operand 5 states and 131 transitions. [2024-11-07 23:35:34,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 102 transitions, 690 flow [2024-11-07 23:35:34,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 102 transitions, 667 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:35:34,530 INFO L231 Difference]: Finished difference. Result has 80 places, 78 transitions, 430 flow [2024-11-07 23:35:34,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=430, PETRI_PLACES=80, PETRI_TRANSITIONS=78} [2024-11-07 23:35:34,531 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 41 predicate places. [2024-11-07 23:35:34,531 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 78 transitions, 430 flow [2024-11-07 23:35:34,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:34,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:34,531 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:34,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:35:34,531 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:34,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1665728021, now seen corresponding path program 1 times [2024-11-07 23:35:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:34,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592050942] [2024-11-07 23:35:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:34,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:35:34,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:34,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592050942] [2024-11-07 23:35:34,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592050942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:34,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357384685] [2024-11-07 23:35:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:34,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:34,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:34,653 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 23:35:34,654 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 23:35:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:34,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:35:34,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:35:34,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:35:34,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357384685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:34,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:34,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2024-11-07 23:35:34,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325039307] [2024-11-07 23:35:34,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:34,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 23:35:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 23:35:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-07 23:35:35,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-07 23:35:35,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 78 transitions, 430 flow. Second operand has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 21 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:35,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:35,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-07 23:35:35,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:35,863 INFO L124 PetriNetUnfolderBase]: 1464/2712 cut-off events. [2024-11-07 23:35:35,863 INFO L125 PetriNetUnfolderBase]: For 1927/1993 co-relation queries the response was YES. [2024-11-07 23:35:35,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6825 conditions, 2712 events. 1464/2712 cut-off events. For 1927/1993 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 16692 event pairs, 506 based on Foata normal form. 66/2755 useless extension candidates. Maximal degree in co-relation 6701. Up to 415 conditions per place. [2024-11-07 23:35:35,875 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 166 selfloop transitions, 45 changer transitions 50/269 dead transitions. [2024-11-07 23:35:35,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 269 transitions, 1679 flow [2024-11-07 23:35:35,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 23:35:35,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-07 23:35:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 486 transitions. [2024-11-07 23:35:35,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.413265306122449 [2024-11-07 23:35:35,877 INFO L175 Difference]: Start difference. First operand has 80 places, 78 transitions, 430 flow. Second operand 28 states and 486 transitions. [2024-11-07 23:35:35,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 269 transitions, 1679 flow [2024-11-07 23:35:35,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 269 transitions, 1605 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-07 23:35:35,885 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 694 flow [2024-11-07 23:35:35,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=694, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2024-11-07 23:35:35,887 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 67 predicate places. [2024-11-07 23:35:35,887 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 694 flow [2024-11-07 23:35:35,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 21 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:35,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:35,887 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:35,900 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 23:35:36,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:36,088 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:36,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:36,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1616203321, now seen corresponding path program 1 times [2024-11-07 23:35:36,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:36,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47695749] [2024-11-07 23:35:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:35:36,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:36,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47695749] [2024-11-07 23:35:36,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47695749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:36,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264204153] [2024-11-07 23:35:36,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:36,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:36,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:36,152 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 23:35:36,153 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 23:35:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:36,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:35:36,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:35:36,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:35:36,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264204153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:36,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:36,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2024-11-07 23:35:36,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690226571] [2024-11-07 23:35:36,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:36,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:35:36,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:36,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:35:36,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:35:36,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-07 23:35:36,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 694 flow. Second operand has 19 states, 19 states have (on average 12.263157894736842) internal successors, (233), 19 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:36,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:36,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-07 23:35:36,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:36,998 INFO L124 PetriNetUnfolderBase]: 1292/2388 cut-off events. [2024-11-07 23:35:36,998 INFO L125 PetriNetUnfolderBase]: For 2769/2781 co-relation queries the response was YES. [2024-11-07 23:35:37,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6292 conditions, 2388 events. 1292/2388 cut-off events. For 2769/2781 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 14252 event pairs, 418 based on Foata normal form. 76/2420 useless extension candidates. Maximal degree in co-relation 6152. Up to 569 conditions per place. [2024-11-07 23:35:37,010 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 68 selfloop transitions, 56 changer transitions 43/174 dead transitions. [2024-11-07 23:35:37,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 174 transitions, 1367 flow [2024-11-07 23:35:37,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 23:35:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 23:35:37,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 228 transitions. [2024-11-07 23:35:37,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4175824175824176 [2024-11-07 23:35:37,012 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 694 flow. Second operand 13 states and 228 transitions. [2024-11-07 23:35:37,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 174 transitions, 1367 flow [2024-11-07 23:35:37,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 174 transitions, 1321 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-07 23:35:37,018 INFO L231 Difference]: Finished difference. Result has 111 places, 91 transitions, 718 flow [2024-11-07 23:35:37,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=718, PETRI_PLACES=111, PETRI_TRANSITIONS=91} [2024-11-07 23:35:37,019 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 72 predicate places. [2024-11-07 23:35:37,019 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 91 transitions, 718 flow [2024-11-07 23:35:37,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.263157894736842) internal successors, (233), 19 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:37,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:37,020 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1] [2024-11-07 23:35:37,033 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 23:35:37,220 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,SelfDestructingSolverStorable12 [2024-11-07 23:35:37,220 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:37,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash 209643134, now seen corresponding path program 1 times [2024-11-07 23:35:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:37,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167779887] [2024-11-07 23:35:37,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:37,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:37,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:37,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167779887] [2024-11-07 23:35:37,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167779887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:37,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114709661] [2024-11-07 23:35:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:37,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:37,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:37,404 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 23:35:37,405 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 23:35:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:37,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 23:35:37,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:37,508 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:37,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114709661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:37,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:37,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-07 23:35:37,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153714315] [2024-11-07 23:35:37,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:37,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 23:35:37,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:37,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 23:35:37,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-07 23:35:37,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-07 23:35:37,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 91 transitions, 718 flow. Second operand has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:37,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:37,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-07 23:35:37,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:38,080 INFO L124 PetriNetUnfolderBase]: 808/1621 cut-off events. [2024-11-07 23:35:38,080 INFO L125 PetriNetUnfolderBase]: For 3076/3076 co-relation queries the response was YES. [2024-11-07 23:35:38,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4795 conditions, 1621 events. 808/1621 cut-off events. For 3076/3076 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8988 event pairs, 556 based on Foata normal form. 21/1635 useless extension candidates. Maximal degree in co-relation 4210. Up to 1276 conditions per place. [2024-11-07 23:35:38,088 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 34 selfloop transitions, 119 changer transitions 0/161 dead transitions. [2024-11-07 23:35:38,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 161 transitions, 1822 flow [2024-11-07 23:35:38,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 23:35:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-07 23:35:38,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 414 transitions. [2024-11-07 23:35:38,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3791208791208791 [2024-11-07 23:35:38,092 INFO L175 Difference]: Start difference. First operand has 111 places, 91 transitions, 718 flow. Second operand 26 states and 414 transitions. [2024-11-07 23:35:38,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 161 transitions, 1822 flow [2024-11-07 23:35:38,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 161 transitions, 1779 flow, removed 4 selfloop flow, removed 10 redundant places. [2024-11-07 23:35:38,103 INFO L231 Difference]: Finished difference. Result has 124 places, 161 transitions, 1799 flow [2024-11-07 23:35:38,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1799, PETRI_PLACES=124, PETRI_TRANSITIONS=161} [2024-11-07 23:35:38,104 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 85 predicate places. [2024-11-07 23:35:38,104 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 161 transitions, 1799 flow [2024-11-07 23:35:38,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:38,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:38,105 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:38,118 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 23:35:38,306 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,SelfDestructingSolverStorable13 [2024-11-07 23:35:38,306 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:38,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:38,306 INFO L85 PathProgramCache]: Analyzing trace with hash -531801311, now seen corresponding path program 1 times [2024-11-07 23:35:38,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:38,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713775113] [2024-11-07 23:35:38,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:38,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 23:35:38,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713775113] [2024-11-07 23:35:38,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713775113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502702429] [2024-11-07 23:35:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:38,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:38,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:38,380 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 23:35:38,381 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 23:35:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:38,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:35:38,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:35:38,550 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:35:38,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502702429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:38,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:38,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17 [2024-11-07 23:35:38,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330573079] [2024-11-07 23:35:38,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:38,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 23:35:38,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:38,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 23:35:38,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-07 23:35:38,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-07 23:35:38,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 161 transitions, 1799 flow. Second operand has 18 states, 18 states have (on average 12.555555555555555) internal successors, (226), 18 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:38,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:38,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-07 23:35:38,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:39,227 INFO L124 PetriNetUnfolderBase]: 958/1804 cut-off events. [2024-11-07 23:35:39,227 INFO L125 PetriNetUnfolderBase]: For 2717/2739 co-relation queries the response was YES. [2024-11-07 23:35:39,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5166 conditions, 1804 events. 958/1804 cut-off events. For 2717/2739 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9301 event pairs, 232 based on Foata normal form. 40/1840 useless extension candidates. Maximal degree in co-relation 4933. Up to 393 conditions per place. [2024-11-07 23:35:39,237 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 143 selfloop transitions, 61 changer transitions 66/277 dead transitions. [2024-11-07 23:35:39,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 277 transitions, 2877 flow [2024-11-07 23:35:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 23:35:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 23:35:39,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 304 transitions. [2024-11-07 23:35:39,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4257703081232493 [2024-11-07 23:35:39,238 INFO L175 Difference]: Start difference. First operand has 124 places, 161 transitions, 1799 flow. Second operand 17 states and 304 transitions. [2024-11-07 23:35:39,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 277 transitions, 2877 flow [2024-11-07 23:35:39,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 277 transitions, 2422 flow, removed 162 selfloop flow, removed 12 redundant places. [2024-11-07 23:35:39,249 INFO L231 Difference]: Finished difference. Result has 131 places, 161 transitions, 1549 flow [2024-11-07 23:35:39,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1420, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1549, PETRI_PLACES=131, PETRI_TRANSITIONS=161} [2024-11-07 23:35:39,250 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 92 predicate places. [2024-11-07 23:35:39,250 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 161 transitions, 1549 flow [2024-11-07 23:35:39,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.555555555555555) internal successors, (226), 18 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:39,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:39,250 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:39,263 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 23:35:39,451 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,SelfDestructingSolverStorable14 [2024-11-07 23:35:39,451 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:39,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:39,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1578804539, now seen corresponding path program 2 times [2024-11-07 23:35:39,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:39,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403960321] [2024-11-07 23:35:39,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:39,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 23:35:39,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403960321] [2024-11-07 23:35:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403960321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713204412] [2024-11-07 23:35:39,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:35:39,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:39,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:39,514 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 23:35:39,516 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 23:35:39,567 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:35:39,567 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:35:39,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:35:39,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 23:35:39,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 23:35:39,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713204412] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:39,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:39,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-07 23:35:39,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938924778] [2024-11-07 23:35:39,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:39,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 23:35:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 23:35:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:35:39,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-07 23:35:39,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 161 transitions, 1549 flow. Second operand has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:39,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:39,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-07 23:35:39,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:39,949 INFO L124 PetriNetUnfolderBase]: 1250/2262 cut-off events. [2024-11-07 23:35:39,950 INFO L125 PetriNetUnfolderBase]: For 3248/3335 co-relation queries the response was YES. [2024-11-07 23:35:39,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6553 conditions, 2262 events. 1250/2262 cut-off events. For 3248/3335 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 11384 event pairs, 227 based on Foata normal form. 0/2257 useless extension candidates. Maximal degree in co-relation 6344. Up to 679 conditions per place. [2024-11-07 23:35:39,962 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 217 selfloop transitions, 8 changer transitions 21/254 dead transitions. [2024-11-07 23:35:39,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 254 transitions, 2484 flow [2024-11-07 23:35:39,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 23:35:39,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 23:35:39,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 224 transitions. [2024-11-07 23:35:39,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-07 23:35:39,963 INFO L175 Difference]: Start difference. First operand has 131 places, 161 transitions, 1549 flow. Second operand 9 states and 224 transitions. [2024-11-07 23:35:39,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 254 transitions, 2484 flow [2024-11-07 23:35:39,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 254 transitions, 2364 flow, removed 18 selfloop flow, removed 11 redundant places. [2024-11-07 23:35:39,976 INFO L231 Difference]: Finished difference. Result has 124 places, 160 transitions, 1499 flow [2024-11-07 23:35:39,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1473, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1499, PETRI_PLACES=124, PETRI_TRANSITIONS=160} [2024-11-07 23:35:39,976 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 85 predicate places. [2024-11-07 23:35:39,977 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 160 transitions, 1499 flow [2024-11-07 23:35:39,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:39,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:39,977 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:39,998 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 23:35:40,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:40,182 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:40,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:40,182 INFO L85 PathProgramCache]: Analyzing trace with hash -122621203, now seen corresponding path program 2 times [2024-11-07 23:35:40,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:40,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685333399] [2024-11-07 23:35:40,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:40,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:40,355 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:35:40,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:40,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685333399] [2024-11-07 23:35:40,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685333399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:40,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100903744] [2024-11-07 23:35:40,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:35:40,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:40,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:40,358 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 23:35:40,359 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 23:35:40,421 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:35:40,421 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:35:40,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:35:40,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-07 23:35:40,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-07 23:35:40,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100903744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:40,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:40,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2024-11-07 23:35:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593479156] [2024-11-07 23:35:40,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:40,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 23:35:40,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:40,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 23:35:40,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-07 23:35:40,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-07 23:35:40,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 160 transitions, 1499 flow. Second operand has 15 states, 15 states have (on average 16.466666666666665) internal successors, (247), 15 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:40,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:40,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-07 23:35:40,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:41,176 INFO L124 PetriNetUnfolderBase]: 1156/2363 cut-off events. [2024-11-07 23:35:41,176 INFO L125 PetriNetUnfolderBase]: For 4294/4294 co-relation queries the response was YES. [2024-11-07 23:35:41,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7281 conditions, 2363 events. 1156/2363 cut-off events. For 4294/4294 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13657 event pairs, 352 based on Foata normal form. 80/2440 useless extension candidates. Maximal degree in co-relation 7028. Up to 523 conditions per place. [2024-11-07 23:35:41,184 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 57 selfloop transitions, 87 changer transitions 189/336 dead transitions. [2024-11-07 23:35:41,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 336 transitions, 3169 flow [2024-11-07 23:35:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 23:35:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 23:35:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 461 transitions. [2024-11-07 23:35:41,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4573412698412698 [2024-11-07 23:35:41,185 INFO L175 Difference]: Start difference. First operand has 124 places, 160 transitions, 1499 flow. Second operand 24 states and 461 transitions. [2024-11-07 23:35:41,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 336 transitions, 3169 flow [2024-11-07 23:35:41,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 336 transitions, 3032 flow, removed 41 selfloop flow, removed 6 redundant places. [2024-11-07 23:35:41,201 INFO L231 Difference]: Finished difference. Result has 140 places, 147 transitions, 1917 flow [2024-11-07 23:35:41,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1470, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1917, PETRI_PLACES=140, PETRI_TRANSITIONS=147} [2024-11-07 23:35:41,202 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 101 predicate places. [2024-11-07 23:35:41,202 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 147 transitions, 1917 flow [2024-11-07 23:35:41,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.466666666666665) internal successors, (247), 15 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:41,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:41,202 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 1, 1, 1] [2024-11-07 23:35:41,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 23:35:41,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 23:35:41,403 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:35:41,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1446661780, now seen corresponding path program 2 times [2024-11-07 23:35:41,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:41,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814379336] [2024-11-07 23:35:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:41,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:35:41,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:41,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814379336] [2024-11-07 23:35:41,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814379336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:41,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468454725] [2024-11-07 23:35:41,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:35:41,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:41,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:41,798 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 23:35:41,800 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 23:35:41,859 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:35:41,859 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:35:41,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:35:41,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-07 23:35:41,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-07 23:35:41,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468454725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:41,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:41,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 3, 3] total 30 [2024-11-07 23:35:41,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140809111] [2024-11-07 23:35:41,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:41,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-07 23:35:41,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:41,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-07 23:35:41,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-07 23:35:42,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-07 23:35:42,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 147 transitions, 1917 flow. Second operand has 31 states, 31 states have (on average 13.096774193548388) internal successors, (406), 31 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:42,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:42,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-07 23:35:42,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:35:42,468 INFO L124 PetriNetUnfolderBase]: 15/225 cut-off events. [2024-11-07 23:35:42,469 INFO L125 PetriNetUnfolderBase]: For 1962/1962 co-relation queries the response was YES. [2024-11-07 23:35:42,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 225 events. 15/225 cut-off events. For 1962/1962 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 700 event pairs, 0 based on Foata normal form. 8/233 useless extension candidates. Maximal degree in co-relation 1247. Up to 70 conditions per place. [2024-11-07 23:35:42,469 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 0 selfloop transitions, 0 changer transitions 157/157 dead transitions. [2024-11-07 23:35:42,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 157 transitions, 2358 flow [2024-11-07 23:35:42,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-07 23:35:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-07 23:35:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 433 transitions. [2024-11-07 23:35:42,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34365079365079365 [2024-11-07 23:35:42,470 INFO L175 Difference]: Start difference. First operand has 140 places, 147 transitions, 1917 flow. Second operand 30 states and 433 transitions. [2024-11-07 23:35:42,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 157 transitions, 2358 flow [2024-11-07 23:35:42,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 157 transitions, 1663 flow, removed 90 selfloop flow, removed 28 redundant places. [2024-11-07 23:35:42,477 INFO L231 Difference]: Finished difference. Result has 101 places, 0 transitions, 0 flow [2024-11-07 23:35:42,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1253, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=0, PETRI_PLACES=101, PETRI_TRANSITIONS=0} [2024-11-07 23:35:42,477 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 62 predicate places. [2024-11-07 23:35:42,477 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 0 transitions, 0 flow [2024-11-07 23:35:42,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 13.096774193548388) internal successors, (406), 31 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2024-11-07 23:35:42,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2024-11-07 23:35:42,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-07 23:35:42,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-07 23:35:42,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-07 23:35:42,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-07 23:35:42,500 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 23:35:42,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 23:35:42,689 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:42,692 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:35:42,693 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:35:42,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:35:42 BasicIcfg [2024-11-07 23:35:42,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:35:42,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:35:42,699 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:35:42,699 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:35:42,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:35:30" (3/4) ... [2024-11-07 23:35:42,701 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:35:42,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 23:35:42,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 23:35:42,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 112 nodes and edges [2024-11-07 23:35:42,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-07 23:35:42,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-07 23:35:42,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:35:42,779 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:35:42,779 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:35:42,779 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:35:42,780 INFO L158 Benchmark]: Toolchain (without parser) took 12798.91ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 92.4MB in the beginning and 184.1MB in the end (delta: -91.7MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-11-07 23:35:42,780 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 81.4MB in the end (delta: 82.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:35:42,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.04ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 80.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:35:42,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.12ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:35:42,780 INFO L158 Benchmark]: Boogie Preprocessor took 38.52ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:35:42,781 INFO L158 Benchmark]: RCFGBuilder took 463.57ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 84.4MB in the end (delta: -7.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-07 23:35:42,781 INFO L158 Benchmark]: TraceAbstraction took 11982.57ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 83.9MB in the beginning and 189.4MB in the end (delta: -105.5MB). Peak memory consumption was 153.1MB. Max. memory is 16.1GB. [2024-11-07 23:35:42,781 INFO L158 Benchmark]: Witness Printer took 80.11ms. Allocated memory is still 243.3MB. Free memory was 189.4MB in the beginning and 184.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:35:42,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 81.4MB in the end (delta: 82.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.04ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 80.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.12ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.52ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 463.57ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 84.4MB in the end (delta: -7.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 11982.57ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 83.9MB in the beginning and 189.4MB in the end (delta: -105.5MB). Peak memory consumption was 153.1MB. Max. memory is 16.1GB. * Witness Printer took 80.11ms. Allocated memory is still 243.3MB. Free memory was 189.4MB in the beginning and 184.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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 5 procedures, 57 locations, 14 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: 11.9s, OverallIterations: 18, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2033 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1938 mSDsluCounter, 1695 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1608 mSDsCounter, 276 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4747 IncrementalHoareTripleChecker+Invalid, 5023 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 276 mSolverCounterUnsat, 87 mSDtfsCounter, 4747 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 637 GetRequests, 325 SyntacticMatches, 8 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2049 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1917occurred in iteration=17, InterpolantAutomatonStates: 221, 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, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 500 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 667 ConstructedInterpolants, 0 QuantifiedInterpolants, 2501 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1149 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 36 InterpolantComputations, 9 PerfectInterpolantSequences, 605/1123 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 23:35:42,803 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