./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/weaver/chl-node-subst.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:36:58,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:36:58,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:36:58,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:36:58,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:36:58,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:36:58,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:36:58,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:36:58,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:36:58,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:36:58,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:36:58,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:36:58,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:36:58,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:36:58,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:36:58,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:36:58,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:36:58,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:36:58,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:36:58,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:36:58,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:36:58,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:36:58,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:36:58,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:36:58,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:36:58,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:36:58,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:36:58,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:36:58,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:36:58,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:36:58,312 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 -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2024-11-07 23:36:58,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:36:58,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:36:58,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:36:58,621 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:36:58,622 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:36:58,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-11-07 23:36:59,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:37:00,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:37:00,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-11-07 23:37:00,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/37bb4eb53/3afab9dc89f74dcc90aef7c178b18e14/FLAG94d75e45a [2024-11-07 23:37:00,497 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/37bb4eb53/3afab9dc89f74dcc90aef7c178b18e14 [2024-11-07 23:37:00,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:37:00,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:37:00,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:37:00,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:37:00,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:37:00,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65f3bf28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00, skipping insertion in model container [2024-11-07 23:37:00,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:37:00,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:37:00,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:37:00,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:37:00,739 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:37:00,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00 WrapperNode [2024-11-07 23:37:00,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:37:00,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:37:00,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:37:00,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:37:00,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,804 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 492 [2024-11-07 23:37:00,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:37:00,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:37:00,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:37:00,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:37:00,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,826 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,861 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 15, 9]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-11-07 23:37:00,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:37:00,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:37:00,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:37:00,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:37:00,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (1/1) ... [2024-11-07 23:37:00,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:37:00,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:00,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:37:00,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:37:00,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:37:00,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:37:00,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:37:00,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:37:00,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:37:00,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:37:00,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:37:00,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:37:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:37:00,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:37:00,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:37:00,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:37:00,983 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:37:01,097 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:37:01,099 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:37:01,804 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:37:01,804 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:37:02,247 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:37:02,248 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-07 23:37:02,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:02 BoogieIcfgContainer [2024-11-07 23:37:02,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:37:02,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:37:02,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:37:02,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:37:02,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:37:00" (1/3) ... [2024-11-07 23:37:02,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8e05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:02, skipping insertion in model container [2024-11-07 23:37:02,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:00" (2/3) ... [2024-11-07 23:37:02,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8e05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:37:02, skipping insertion in model container [2024-11-07 23:37:02,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:37:02" (3/3) ... [2024-11-07 23:37:02,262 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2024-11-07 23:37:02,279 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:37:02,279 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-07 23:37:02,279 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:37:02,379 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:37:02,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2024-11-07 23:37:02,496 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2024-11-07 23:37:02,498 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:37:02,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 404 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-11-07 23:37:02,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2024-11-07 23:37:02,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2024-11-07 23:37:02,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:37:02,532 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;@38c7eb51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:37:02,533 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-07 23:37:02,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:37:02,537 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-07 23:37:02,537 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:37:02,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:02,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-07 23:37:02,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:02,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:02,543 INFO L85 PathProgramCache]: Analyzing trace with hash 46888, now seen corresponding path program 1 times [2024-11-07 23:37:02,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:02,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129220094] [2024-11-07 23:37:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:02,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129220094] [2024-11-07 23:37:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129220094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:02,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:02,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:02,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715626985] [2024-11-07 23:37:02,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:02,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:02,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:02,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:02,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:02,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:02,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:02,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:02,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:03,943 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2024-11-07 23:37:03,943 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-11-07 23:37:03,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65987 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2024-11-07 23:37:04,019 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2024-11-07 23:37:04,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2024-11-07 23:37:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:04,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-07 23:37:04,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-07 23:37:04,040 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2024-11-07 23:37:04,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2024-11-07 23:37:04,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 23:37:04,054 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2024-11-07 23:37:04,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-11-07 23:37:04,061 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-11-07 23:37:04,062 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2024-11-07 23:37:04,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:04,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:04,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:37:04,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:37:04,064 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:04,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:04,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1455072, now seen corresponding path program 1 times [2024-11-07 23:37:04,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:04,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409707235] [2024-11-07 23:37:04,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:04,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:04,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:04,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409707235] [2024-11-07 23:37:04,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409707235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:04,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:04,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:04,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053879324] [2024-11-07 23:37:04,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:04,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:04,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:04,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:04,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:04,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:04,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:04,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:04,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:05,037 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2024-11-07 23:37:05,037 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-07 23:37:05,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66088 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2024-11-07 23:37:05,091 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-07 23:37:05,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2024-11-07 23:37:05,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-07 23:37:05,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-07 23:37:05,099 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2024-11-07 23:37:05,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2024-11-07 23:37:05,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:05,102 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2024-11-07 23:37:05,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2024-11-07 23:37:05,103 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2024-11-07 23:37:05,103 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2024-11-07 23:37:05,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:05,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:05,104 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:37:05,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:37:05,104 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:05,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:05,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373587, now seen corresponding path program 1 times [2024-11-07 23:37:05,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:05,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846968868] [2024-11-07 23:37:05,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:05,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:05,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:05,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846968868] [2024-11-07 23:37:05,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846968868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:05,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:05,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:05,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519185395] [2024-11-07 23:37:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:05,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:05,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:05,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:05,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:05,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:05,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:05,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:05,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:06,082 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2024-11-07 23:37:06,082 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-07 23:37:06,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66179 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2024-11-07 23:37:06,127 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2024-11-07 23:37:06,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2024-11-07 23:37:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-07 23:37:06,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-07 23:37:06,130 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2024-11-07 23:37:06,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2024-11-07 23:37:06,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:06,134 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2024-11-07 23:37:06,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-11-07 23:37:06,137 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-11-07 23:37:06,137 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2024-11-07 23:37:06,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:06,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:06,138 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:37:06,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:37:06,138 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:06,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373678, now seen corresponding path program 1 times [2024-11-07 23:37:06,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:06,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398337859] [2024-11-07 23:37:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:06,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:06,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398337859] [2024-11-07 23:37:06,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398337859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:06,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:06,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:06,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110168864] [2024-11-07 23:37:06,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:06,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:06,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:06,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:06,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:06,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:06,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 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 23:37:06,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:06,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:06,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:07,059 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2024-11-07 23:37:07,059 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-07 23:37:07,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66112 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2024-11-07 23:37:07,212 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-11-07 23:37:07,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2024-11-07 23:37:07,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-07 23:37:07,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-07 23:37:07,214 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2024-11-07 23:37:07,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2024-11-07 23:37:07,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:07,217 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2024-11-07 23:37:07,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-11-07 23:37:07,218 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-07 23:37:07,218 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2024-11-07 23:37:07,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 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 23:37:07,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:07,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 23:37:07,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:37:07,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:07,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:07,219 INFO L85 PathProgramCache]: Analyzing trace with hash 399912571, now seen corresponding path program 1 times [2024-11-07 23:37:07,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:07,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021362838] [2024-11-07 23:37:07,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:07,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:07,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:07,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:07,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021362838] [2024-11-07 23:37:07,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021362838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:07,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:07,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:07,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698322093] [2024-11-07 23:37:07,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:07,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:07,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:07,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:07,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:07,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:07,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 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 23:37:07,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:07,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:07,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:07,879 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2024-11-07 23:37:07,879 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-07 23:37:07,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66163 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2024-11-07 23:37:08,034 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2024-11-07 23:37:08,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2024-11-07 23:37:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:08,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-07 23:37:08,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-07 23:37:08,036 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2024-11-07 23:37:08,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2024-11-07 23:37:08,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:08,039 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2024-11-07 23:37:08,039 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-11-07 23:37:08,040 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-11-07 23:37:08,040 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2024-11-07 23:37:08,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 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 23:37:08,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:08,040 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:08,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:37:08,041 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:08,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:08,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2061233645, now seen corresponding path program 1 times [2024-11-07 23:37:08,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:08,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990143793] [2024-11-07 23:37:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:08,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:08,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990143793] [2024-11-07 23:37:08,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990143793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:08,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854207204] [2024-11-07 23:37:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:08,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:37:08,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:37:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:08,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:37:08,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:08,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:08,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:37:08,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854207204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:08,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:37:08,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:37:08,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452174868] [2024-11-07 23:37:08,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:08,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:37:08,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:08,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:37:08,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:37:08,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:08,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:08,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:08,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:08,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:09,061 INFO L124 PetriNetUnfolderBase]: 4140/8022 cut-off events. [2024-11-07 23:37:09,061 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-07 23:37:09,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13706 conditions, 8022 events. 4140/8022 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65806 event pairs, 2736 based on Foata normal form. 3/6399 useless extension candidates. Maximal degree in co-relation 13695. Up to 5497 conditions per place. [2024-11-07 23:37:09,100 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/133 dead transitions. [2024-11-07 23:37:09,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 133 transitions, 475 flow [2024-11-07 23:37:09,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:37:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:37:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-07 23:37:09,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-07 23:37:09,105 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 6 states and 507 transitions. [2024-11-07 23:37:09,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 133 transitions, 475 flow [2024-11-07 23:37:09,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 133 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:09,108 INFO L231 Difference]: Finished difference. Result has 127 places, 133 transitions, 372 flow [2024-11-07 23:37:09,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=127, PETRI_TRANSITIONS=133} [2024-11-07 23:37:09,109 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-07 23:37:09,110 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 133 transitions, 372 flow [2024-11-07 23:37:09,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:09,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:09,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:09,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:37:09,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:09,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:09,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2063938383, now seen corresponding path program 1 times [2024-11-07 23:37:09,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:09,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634996428] [2024-11-07 23:37:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:09,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:09,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634996428] [2024-11-07 23:37:09,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634996428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:09,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:09,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:09,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289601001] [2024-11-07 23:37:09,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:09,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:09,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:09,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:09,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:09,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 133 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:09,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:09,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:09,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:09,996 INFO L124 PetriNetUnfolderBase]: 4140/8020 cut-off events. [2024-11-07 23:37:09,997 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-07 23:37:10,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 8020 events. 4140/8020 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65808 event pairs, 2736 based on Foata normal form. 2/6400 useless extension candidates. Maximal degree in co-relation 13713. Up to 5513 conditions per place. [2024-11-07 23:37:10,046 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-07 23:37:10,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 510 flow [2024-11-07 23:37:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:10,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:10,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-07 23:37:10,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-07 23:37:10,048 INFO L175 Difference]: Start difference. First operand has 127 places, 133 transitions, 372 flow. Second operand 3 states and 286 transitions. [2024-11-07 23:37:10,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 510 flow [2024-11-07 23:37:10,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 465 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-07 23:37:10,052 INFO L231 Difference]: Finished difference. Result has 123 places, 131 transitions, 325 flow [2024-11-07 23:37:10,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=123, PETRI_TRANSITIONS=131} [2024-11-07 23:37:10,053 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -7 predicate places. [2024-11-07 23:37:10,053 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 131 transitions, 325 flow [2024-11-07 23:37:10,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:10,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:10,053 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-07 23:37:10,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:37:10,054 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:10,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:10,054 INFO L85 PathProgramCache]: Analyzing trace with hash -526264928, now seen corresponding path program 1 times [2024-11-07 23:37:10,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:10,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255161469] [2024-11-07 23:37:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:10,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:10,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:10,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255161469] [2024-11-07 23:37:10,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255161469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:10,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589084257] [2024-11-07 23:37:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:10,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:10,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:10,167 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 23:37:10,168 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 23:37:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:10,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:37:10,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:10,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:37:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:10,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589084257] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:37:10,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:37:10,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:37:10,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22492063] [2024-11-07 23:37:10,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:37:10,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:37:10,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:10,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:37:10,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:37:10,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:10,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 131 transitions, 325 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:10,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:10,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:10,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:11,220 INFO L124 PetriNetUnfolderBase]: 4149/8056 cut-off events. [2024-11-07 23:37:11,220 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-11-07 23:37:11,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13791 conditions, 8056 events. 4149/8056 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65984 event pairs, 2736 based on Foata normal form. 9/6435 useless extension candidates. Maximal degree in co-relation 13780. Up to 5518 conditions per place. [2024-11-07 23:37:11,267 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/158 dead transitions. [2024-11-07 23:37:11,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 158 transitions, 640 flow [2024-11-07 23:37:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:37:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:37:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-07 23:37:11,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-07 23:37:11,271 INFO L175 Difference]: Start difference. First operand has 123 places, 131 transitions, 325 flow. Second operand 10 states and 828 transitions. [2024-11-07 23:37:11,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 158 transitions, 640 flow [2024-11-07 23:37:11,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 158 transitions, 639 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:11,275 INFO L231 Difference]: Finished difference. Result has 134 places, 158 transitions, 573 flow [2024-11-07 23:37:11,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=573, PETRI_PLACES=134, PETRI_TRANSITIONS=158} [2024-11-07 23:37:11,276 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-07 23:37:11,276 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 158 transitions, 573 flow [2024-11-07 23:37:11,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:11,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:11,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:11,294 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 23:37:11,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:11,482 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:11,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:11,482 INFO L85 PathProgramCache]: Analyzing trace with hash -442418035, now seen corresponding path program 1 times [2024-11-07 23:37:11,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:11,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954273241] [2024-11-07 23:37:11,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:11,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:11,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:11,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954273241] [2024-11-07 23:37:11,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954273241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:11,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:11,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:37:11,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591668167] [2024-11-07 23:37:11,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:11,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:37:11,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:37:11,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:37:11,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:11,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 158 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:11,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:11,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:11,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:12,137 INFO L124 PetriNetUnfolderBase]: 4149/8054 cut-off events. [2024-11-07 23:37:12,137 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-07 23:37:12,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13855 conditions, 8054 events. 4149/8054 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65915 event pairs, 2736 based on Foata normal form. 1/6434 useless extension candidates. Maximal degree in co-relation 13841. Up to 5538 conditions per place. [2024-11-07 23:37:12,168 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 95 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2024-11-07 23:37:12,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 156 transitions, 761 flow [2024-11-07 23:37:12,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:37:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:37:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-07 23:37:12,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-07 23:37:12,170 INFO L175 Difference]: Start difference. First operand has 134 places, 158 transitions, 573 flow. Second operand 3 states and 284 transitions. [2024-11-07 23:37:12,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 156 transitions, 761 flow [2024-11-07 23:37:12,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 156 transitions, 728 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:12,174 INFO L231 Difference]: Finished difference. Result has 132 places, 156 transitions, 538 flow [2024-11-07 23:37:12,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=132, PETRI_TRANSITIONS=156} [2024-11-07 23:37:12,175 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-11-07 23:37:12,175 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 156 transitions, 538 flow [2024-11-07 23:37:12,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:12,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:12,175 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:12,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:37:12,176 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:12,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash 577326466, now seen corresponding path program 1 times [2024-11-07 23:37:12,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:12,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742376290] [2024-11-07 23:37:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:12,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:37:12,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:12,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742376290] [2024-11-07 23:37:12,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742376290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:12,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:12,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:12,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689586368] [2024-11-07 23:37:12,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:12,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:12,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:12,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:12,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:12,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:12,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 156 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:12,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:12,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:12,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:12,863 INFO L124 PetriNetUnfolderBase]: 4152/8066 cut-off events. [2024-11-07 23:37:12,863 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-07 23:37:12,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13869 conditions, 8066 events. 4152/8066 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66051 event pairs, 2736 based on Foata normal form. 3/6445 useless extension candidates. Maximal degree in co-relation 13853. Up to 5548 conditions per place. [2024-11-07 23:37:12,905 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2024-11-07 23:37:12,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 778 flow [2024-11-07 23:37:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-07 23:37:12,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-07 23:37:12,907 INFO L175 Difference]: Start difference. First operand has 132 places, 156 transitions, 538 flow. Second operand 4 states and 369 transitions. [2024-11-07 23:37:12,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 165 transitions, 778 flow [2024-11-07 23:37:12,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:12,911 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2024-11-07 23:37:12,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-11-07 23:37:12,912 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-11-07 23:37:12,912 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2024-11-07 23:37:12,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:12,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:12,912 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:12,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:37:12,912 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:12,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2085231517, now seen corresponding path program 1 times [2024-11-07 23:37:12,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:12,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892797887] [2024-11-07 23:37:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:12,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:37:13,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:13,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892797887] [2024-11-07 23:37:13,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892797887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:13,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:13,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:13,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459355371] [2024-11-07 23:37:13,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:13,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:13,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:13,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:13,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:13,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:13,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:13,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:13,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:13,700 INFO L124 PetriNetUnfolderBase]: 4151/8065 cut-off events. [2024-11-07 23:37:13,700 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-07 23:37:13,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 8065 events. 4151/8065 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66014 event pairs, 2736 based on Foata normal form. 1/6448 useless extension candidates. Maximal degree in co-relation 13880. Up to 5544 conditions per place. [2024-11-07 23:37:13,724 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2024-11-07 23:37:13,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2024-11-07 23:37:13,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-07 23:37:13,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-07 23:37:13,726 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2024-11-07 23:37:13,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2024-11-07 23:37:13,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:37:13,731 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2024-11-07 23:37:13,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-11-07 23:37:13,733 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-11-07 23:37:13,733 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2024-11-07 23:37:13,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:13,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:13,733 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2024-11-07 23:37:13,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:37:13,733 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:13,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:13,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1543471110, now seen corresponding path program 2 times [2024-11-07 23:37:13,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:13,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822436887] [2024-11-07 23:37:13,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:13,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:13,906 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 23:37:13,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:13,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822436887] [2024-11-07 23:37:13,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822436887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:13,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088027570] [2024-11-07 23:37:13,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:37:13,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:13,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:13,910 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 23:37:13,911 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 23:37:13,999 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:37:13,999 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:37:14,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:37:14,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:14,041 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 23:37:14,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:37:14,080 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 23:37:14,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088027570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:37:14,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:37:14,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2024-11-07 23:37:14,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539142372] [2024-11-07 23:37:14,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:37:14,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:37:14,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:14,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:37:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:37:14,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:14,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:14,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:14,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:14,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:14,836 INFO L124 PetriNetUnfolderBase]: 4154/8074 cut-off events. [2024-11-07 23:37:14,836 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-11-07 23:37:14,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13919 conditions, 8074 events. 4154/8074 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66126 event pairs, 2736 based on Foata normal form. 6/6459 useless extension candidates. Maximal degree in co-relation 13900. Up to 5517 conditions per place. [2024-11-07 23:37:14,869 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 57 selfloop transitions, 56 changer transitions 0/170 dead transitions. [2024-11-07 23:37:14,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 170 transitions, 870 flow [2024-11-07 23:37:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:37:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:37:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1118 transitions. [2024-11-07 23:37:14,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5704081632653061 [2024-11-07 23:37:14,873 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 14 states and 1118 transitions. [2024-11-07 23:37:14,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 170 transitions, 870 flow [2024-11-07 23:37:14,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 170 transitions, 830 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-07 23:37:14,877 INFO L231 Difference]: Finished difference. Result has 142 places, 170 transitions, 716 flow [2024-11-07 23:37:14,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=716, PETRI_PLACES=142, PETRI_TRANSITIONS=170} [2024-11-07 23:37:14,878 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-07 23:37:14,878 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 170 transitions, 716 flow [2024-11-07 23:37:14,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:14,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:14,879 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:14,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 23:37:15,082 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 23:37:15,083 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:15,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:15,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2147071415, now seen corresponding path program 1 times [2024-11-07 23:37:15,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:15,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791266105] [2024-11-07 23:37:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:15,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:15,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:15,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:15,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791266105] [2024-11-07 23:37:15,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791266105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:15,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:15,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:15,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150361466] [2024-11-07 23:37:15,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:15,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:15,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:15,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:15,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:15,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:15,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 170 transitions, 716 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:15,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:15,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:15,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:15,771 INFO L124 PetriNetUnfolderBase]: 4153/8073 cut-off events. [2024-11-07 23:37:15,772 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-11-07 23:37:15,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13947 conditions, 8073 events. 4153/8073 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66036 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13933. Up to 5552 conditions per place. [2024-11-07 23:37:15,800 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 109 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2024-11-07 23:37:15,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 169 transitions, 934 flow [2024-11-07 23:37:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-07 23:37:15,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-07 23:37:15,801 INFO L175 Difference]: Start difference. First operand has 142 places, 170 transitions, 716 flow. Second operand 4 states and 359 transitions. [2024-11-07 23:37:15,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 169 transitions, 934 flow [2024-11-07 23:37:15,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 169 transitions, 727 flow, removed 18 selfloop flow, removed 12 redundant places. [2024-11-07 23:37:15,805 INFO L231 Difference]: Finished difference. Result has 133 places, 169 transitions, 509 flow [2024-11-07 23:37:15,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=133, PETRI_TRANSITIONS=169} [2024-11-07 23:37:15,806 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-07 23:37:15,806 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 169 transitions, 509 flow [2024-11-07 23:37:15,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:15,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:15,806 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:15,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:37:15,807 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:15,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1056073208, now seen corresponding path program 1 times [2024-11-07 23:37:15,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:15,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500399024] [2024-11-07 23:37:15,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:15,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:37:15,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500399024] [2024-11-07 23:37:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500399024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:15,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:15,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700010723] [2024-11-07 23:37:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:15,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:15,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:15,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:15,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 169 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:15,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:15,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:15,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:16,377 INFO L124 PetriNetUnfolderBase]: 4152/8072 cut-off events. [2024-11-07 23:37:16,377 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-07 23:37:16,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13843 conditions, 8072 events. 4152/8072 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66042 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13829. Up to 5551 conditions per place. [2024-11-07 23:37:16,410 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 108 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2024-11-07 23:37:16,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 728 flow [2024-11-07 23:37:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:16,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:16,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-07 23:37:16,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-07 23:37:16,411 INFO L175 Difference]: Start difference. First operand has 133 places, 169 transitions, 509 flow. Second operand 4 states and 359 transitions. [2024-11-07 23:37:16,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 728 flow [2024-11-07 23:37:16,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:16,414 INFO L231 Difference]: Finished difference. Result has 134 places, 168 transitions, 508 flow [2024-11-07 23:37:16,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=508, PETRI_PLACES=134, PETRI_TRANSITIONS=168} [2024-11-07 23:37:16,415 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-07 23:37:16,415 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 168 transitions, 508 flow [2024-11-07 23:37:16,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:16,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:16,416 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:16,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 23:37:16,416 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:16,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:16,416 INFO L85 PathProgramCache]: Analyzing trace with hash -852712849, now seen corresponding path program 1 times [2024-11-07 23:37:16,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:16,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145762390] [2024-11-07 23:37:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:16,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:16,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:16,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:16,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145762390] [2024-11-07 23:37:16,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145762390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:16,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591577688] [2024-11-07 23:37:16,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:16,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:16,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:16,546 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 23:37:16,548 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 23:37:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:16,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:37:16,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:16,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:37:16,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591577688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:16,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:37:16,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:37:16,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407185074] [2024-11-07 23:37:16,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:16,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:37:16,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:37:16,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:37:16,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:16,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 168 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:16,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:16,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:16,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:17,463 INFO L124 PetriNetUnfolderBase]: 4152/8069 cut-off events. [2024-11-07 23:37:17,463 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-07 23:37:17,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13841 conditions, 8069 events. 4152/8069 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65975 event pairs, 2736 based on Foata normal form. 3/6439 useless extension candidates. Maximal degree in co-relation 13827. Up to 5539 conditions per place. [2024-11-07 23:37:17,497 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 93 selfloop transitions, 21 changer transitions 0/165 dead transitions. [2024-11-07 23:37:17,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 724 flow [2024-11-07 23:37:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:37:17,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:37:17,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-07 23:37:17,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-07 23:37:17,499 INFO L175 Difference]: Start difference. First operand has 134 places, 168 transitions, 508 flow. Second operand 6 states and 507 transitions. [2024-11-07 23:37:17,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 724 flow [2024-11-07 23:37:17,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:17,503 INFO L231 Difference]: Finished difference. Result has 134 places, 165 transitions, 534 flow [2024-11-07 23:37:17,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=134, PETRI_TRANSITIONS=165} [2024-11-07 23:37:17,504 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-07 23:37:17,504 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 165 transitions, 534 flow [2024-11-07 23:37:17,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:17,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:17,504 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:17,520 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 23:37:17,705 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,SelfDestructingSolverStorable14 [2024-11-07 23:37:17,705 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:17,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:17,705 INFO L85 PathProgramCache]: Analyzing trace with hash -664292993, now seen corresponding path program 1 times [2024-11-07 23:37:17,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:17,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549555408] [2024-11-07 23:37:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:17,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:17,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:17,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549555408] [2024-11-07 23:37:17,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549555408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:17,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467410978] [2024-11-07 23:37:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:17,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:17,819 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 23:37:17,821 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 23:37:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:17,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:37:17,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:17,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:37:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:18,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467410978] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:37:18,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:37:18,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:37:18,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847578761] [2024-11-07 23:37:18,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:37:18,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:37:18,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:18,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:37:18,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:37:18,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:18,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 534 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:18,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:18,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:18,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:18,780 INFO L124 PetriNetUnfolderBase]: 4161/8105 cut-off events. [2024-11-07 23:37:18,780 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-07 23:37:18,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13977 conditions, 8105 events. 4161/8105 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66343 event pairs, 2736 based on Foata normal form. 9/6475 useless extension candidates. Maximal degree in co-relation 13964. Up to 5560 conditions per place. [2024-11-07 23:37:18,810 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 102 selfloop transitions, 39 changer transitions 0/192 dead transitions. [2024-11-07 23:37:18,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 192 transitions, 978 flow [2024-11-07 23:37:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:37:18,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:37:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-07 23:37:18,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-07 23:37:18,812 INFO L175 Difference]: Start difference. First operand has 134 places, 165 transitions, 534 flow. Second operand 10 states and 828 transitions. [2024-11-07 23:37:18,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 192 transitions, 978 flow [2024-11-07 23:37:18,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 192 transitions, 888 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-07 23:37:18,816 INFO L231 Difference]: Finished difference. Result has 142 places, 192 transitions, 738 flow [2024-11-07 23:37:18,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=738, PETRI_PLACES=142, PETRI_TRANSITIONS=192} [2024-11-07 23:37:18,817 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-07 23:37:18,817 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 192 transitions, 738 flow [2024-11-07 23:37:18,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:18,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:18,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:18,830 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 23:37:19,018 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,SelfDestructingSolverStorable15 [2024-11-07 23:37:19,019 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:19,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:19,019 INFO L85 PathProgramCache]: Analyzing trace with hash -90376987, now seen corresponding path program 1 times [2024-11-07 23:37:19,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:19,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294217051] [2024-11-07 23:37:19,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:19,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:19,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:19,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294217051] [2024-11-07 23:37:19,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294217051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:19,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:19,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:19,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899119335] [2024-11-07 23:37:19,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:19,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:19,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:19,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:19,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:19,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:37:19,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 192 transitions, 738 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:19,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:19,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:37:19,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:20,022 INFO L124 PetriNetUnfolderBase]: 8090/14045 cut-off events. [2024-11-07 23:37:20,022 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2024-11-07 23:37:20,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25316 conditions, 14045 events. 8090/14045 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 112659 event pairs, 2643 based on Foata normal form. 364/11809 useless extension candidates. Maximal degree in co-relation 25301. Up to 5122 conditions per place. [2024-11-07 23:37:20,082 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 188 selfloop transitions, 5 changer transitions 0/241 dead transitions. [2024-11-07 23:37:20,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 241 transitions, 1228 flow [2024-11-07 23:37:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:20,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2024-11-07 23:37:20,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-07 23:37:20,084 INFO L175 Difference]: Start difference. First operand has 142 places, 192 transitions, 738 flow. Second operand 4 states and 406 transitions. [2024-11-07 23:37:20,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 241 transitions, 1228 flow [2024-11-07 23:37:20,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 241 transitions, 1195 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:20,089 INFO L231 Difference]: Finished difference. Result has 145 places, 194 transitions, 739 flow [2024-11-07 23:37:20,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=145, PETRI_TRANSITIONS=194} [2024-11-07 23:37:20,090 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 15 predicate places. [2024-11-07 23:37:20,090 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 194 transitions, 739 flow [2024-11-07 23:37:20,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:20,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:20,091 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:20,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 23:37:20,091 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:20,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1493282289, now seen corresponding path program 1 times [2024-11-07 23:37:20,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:20,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005378991] [2024-11-07 23:37:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:20,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:37:20,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005378991] [2024-11-07 23:37:20,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005378991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:20,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:20,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454357172] [2024-11-07 23:37:20,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:20,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:20,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:20,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:20,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:20,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:20,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 194 transitions, 739 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:20,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:20,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:20,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:20,766 INFO L124 PetriNetUnfolderBase]: 5006/10058 cut-off events. [2024-11-07 23:37:20,766 INFO L125 PetriNetUnfolderBase]: For 1840/2112 co-relation queries the response was YES. [2024-11-07 23:37:20,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18439 conditions, 10058 events. 5006/10058 cut-off events. For 1840/2112 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 87873 event pairs, 3370 based on Foata normal form. 138/8312 useless extension candidates. Maximal degree in co-relation 18421. Up to 6715 conditions per place. [2024-11-07 23:37:20,820 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 136 selfloop transitions, 3 changer transitions 0/193 dead transitions. [2024-11-07 23:37:20,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 193 transitions, 1013 flow [2024-11-07 23:37:20,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-07 23:37:20,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-07 23:37:20,822 INFO L175 Difference]: Start difference. First operand has 145 places, 194 transitions, 739 flow. Second operand 4 states and 359 transitions. [2024-11-07 23:37:20,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 193 transitions, 1013 flow [2024-11-07 23:37:20,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 193 transitions, 1013 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:37:20,831 INFO L231 Difference]: Finished difference. Result has 148 places, 193 transitions, 741 flow [2024-11-07 23:37:20,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=741, PETRI_PLACES=148, PETRI_TRANSITIONS=193} [2024-11-07 23:37:20,832 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 18 predicate places. [2024-11-07 23:37:20,832 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 193 transitions, 741 flow [2024-11-07 23:37:20,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:20,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:20,832 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:20,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 23:37:20,832 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:20,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:20,832 INFO L85 PathProgramCache]: Analyzing trace with hash -174152482, now seen corresponding path program 2 times [2024-11-07 23:37:20,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:20,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587116790] [2024-11-07 23:37:20,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:20,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-07 23:37:21,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:21,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587116790] [2024-11-07 23:37:21,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587116790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:21,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367445484] [2024-11-07 23:37:21,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:37:21,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:21,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:21,094 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 23:37:21,096 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 23:37:21,204 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:37:21,204 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:37:21,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:37:21,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-07 23:37:21,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:37:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-07 23:37:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367445484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:37:21,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:37:21,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2024-11-07 23:37:21,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453446346] [2024-11-07 23:37:21,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:37:21,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:37:21,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:21,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:37:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:37:21,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 140 [2024-11-07 23:37:21,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 193 transitions, 741 flow. Second operand has 12 states, 12 states have (on average 65.08333333333333) internal successors, (781), 12 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:21,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:21,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 140 [2024-11-07 23:37:21,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:22,761 INFO L124 PetriNetUnfolderBase]: 10002/20069 cut-off events. [2024-11-07 23:37:22,761 INFO L125 PetriNetUnfolderBase]: For 3679/4224 co-relation queries the response was YES. [2024-11-07 23:37:22,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36730 conditions, 20069 events. 10002/20069 cut-off events. For 3679/4224 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 194062 event pairs, 6740 based on Foata normal form. 281/16745 useless extension candidates. Maximal degree in co-relation 36710. Up to 6679 conditions per place. [2024-11-07 23:37:22,910 INFO L140 encePairwiseOnDemand]: 120/140 looper letters, 159 selfloop transitions, 89 changer transitions 0/299 dead transitions. [2024-11-07 23:37:22,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 299 transitions, 1655 flow [2024-11-07 23:37:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:37:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:37:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 994 transitions. [2024-11-07 23:37:22,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571 [2024-11-07 23:37:22,913 INFO L175 Difference]: Start difference. First operand has 148 places, 193 transitions, 741 flow. Second operand 14 states and 994 transitions. [2024-11-07 23:37:22,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 299 transitions, 1655 flow [2024-11-07 23:37:22,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 299 transitions, 1597 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-07 23:37:22,926 INFO L231 Difference]: Finished difference. Result has 152 places, 226 transitions, 1045 flow [2024-11-07 23:37:22,926 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1045, PETRI_PLACES=152, PETRI_TRANSITIONS=226} [2024-11-07 23:37:22,927 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 22 predicate places. [2024-11-07 23:37:22,927 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 226 transitions, 1045 flow [2024-11-07 23:37:22,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.08333333333333) internal successors, (781), 12 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:22,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:22,928 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:22,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 23:37:23,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:23,129 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:23,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:23,129 INFO L85 PathProgramCache]: Analyzing trace with hash 251158034, now seen corresponding path program 1 times [2024-11-07 23:37:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:23,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446863888] [2024-11-07 23:37:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:37:23,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:23,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446863888] [2024-11-07 23:37:23,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446863888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:23,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:23,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085532127] [2024-11-07 23:37:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:23,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:23,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:23,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:23,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:23,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:23,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 226 transitions, 1045 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:23,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:23,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:23,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:24,258 INFO L124 PetriNetUnfolderBase]: 10000/20067 cut-off events. [2024-11-07 23:37:24,258 INFO L125 PetriNetUnfolderBase]: For 3702/4246 co-relation queries the response was YES. [2024-11-07 23:37:24,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36778 conditions, 20067 events. 10000/20067 cut-off events. For 3702/4246 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 194041 event pairs, 6740 based on Foata normal form. 274/16563 useless extension candidates. Maximal degree in co-relation 36762. Up to 13398 conditions per place. [2024-11-07 23:37:24,360 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 168 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2024-11-07 23:37:24,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 224 transitions, 1379 flow [2024-11-07 23:37:24,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:24,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-07 23:37:24,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-07 23:37:24,361 INFO L175 Difference]: Start difference. First operand has 152 places, 226 transitions, 1045 flow. Second operand 4 states and 359 transitions. [2024-11-07 23:37:24,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 224 transitions, 1379 flow [2024-11-07 23:37:24,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 224 transitions, 1376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:24,370 INFO L231 Difference]: Finished difference. Result has 153 places, 224 transitions, 1040 flow [2024-11-07 23:37:24,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1040, PETRI_PLACES=153, PETRI_TRANSITIONS=224} [2024-11-07 23:37:24,371 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 23 predicate places. [2024-11-07 23:37:24,371 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 224 transitions, 1040 flow [2024-11-07 23:37:24,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:24,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:24,371 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:24,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 23:37:24,372 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:24,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1363619158, now seen corresponding path program 1 times [2024-11-07 23:37:24,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:24,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355912240] [2024-11-07 23:37:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:24,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:37:24,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:24,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355912240] [2024-11-07 23:37:24,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355912240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:24,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:24,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:24,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962561096] [2024-11-07 23:37:24,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:24,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:24,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:24,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:24,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-07 23:37:24,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 224 transitions, 1040 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:24,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:24,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-07 23:37:24,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:25,792 INFO L124 PetriNetUnfolderBase]: 9998/20065 cut-off events. [2024-11-07 23:37:25,793 INFO L125 PetriNetUnfolderBase]: For 3711/4255 co-relation queries the response was YES. [2024-11-07 23:37:25,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36774 conditions, 20065 events. 9998/20065 cut-off events. For 3711/4255 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 193874 event pairs, 6740 based on Foata normal form. 274/16563 useless extension candidates. Maximal degree in co-relation 36757. Up to 13396 conditions per place. [2024-11-07 23:37:25,896 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 166 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2024-11-07 23:37:25,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 222 transitions, 1370 flow [2024-11-07 23:37:25,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-07 23:37:25,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-07 23:37:25,898 INFO L175 Difference]: Start difference. First operand has 153 places, 224 transitions, 1040 flow. Second operand 4 states and 359 transitions. [2024-11-07 23:37:25,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 222 transitions, 1370 flow [2024-11-07 23:37:25,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 222 transitions, 1364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:25,911 INFO L231 Difference]: Finished difference. Result has 154 places, 222 transitions, 1032 flow [2024-11-07 23:37:25,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1032, PETRI_PLACES=154, PETRI_TRANSITIONS=222} [2024-11-07 23:37:25,911 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 24 predicate places. [2024-11-07 23:37:25,911 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 222 transitions, 1032 flow [2024-11-07 23:37:25,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:25,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:25,912 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:25,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 23:37:25,912 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:25,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:25,913 INFO L85 PathProgramCache]: Analyzing trace with hash -409634365, now seen corresponding path program 1 times [2024-11-07 23:37:25,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:25,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131631022] [2024-11-07 23:37:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:37:26,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:26,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131631022] [2024-11-07 23:37:26,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131631022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:26,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764792370] [2024-11-07 23:37:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:26,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:26,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:26,672 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 23:37:26,674 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 23:37:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:26,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-07 23:37:26,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:26,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 23:37:26,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 23:37:26,998 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-07 23:37:26,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-07 23:37:27,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-07 23:37:27,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-07 23:37:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:37:27,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:37:27,234 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 9223372039002259456)) is different from false [2024-11-07 23:37:27,395 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 23:37:27,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2024-11-07 23:37:27,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 23:37:27,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2024-11-07 23:37:27,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-11-07 23:37:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-07 23:37:27,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764792370] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:37:27,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:37:27,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-07 23:37:27,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801006556] [2024-11-07 23:37:27,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:37:27,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:37:27,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:27,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:37:27,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=251, Unknown=1, NotChecked=32, Total=342 [2024-11-07 23:37:27,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-07 23:37:27,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 222 transitions, 1032 flow. Second operand has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:27,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:27,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-07 23:37:27,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:32,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-07 23:37:41,445 INFO L124 PetriNetUnfolderBase]: 77802/118539 cut-off events. [2024-11-07 23:37:41,445 INFO L125 PetriNetUnfolderBase]: For 11861/12305 co-relation queries the response was YES. [2024-11-07 23:37:41,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241680 conditions, 118539 events. 77802/118539 cut-off events. For 11861/12305 co-relation queries the response was YES. Maximal size of possible extension queue 4973. Compared 1015611 event pairs, 17482 based on Foata normal form. 444/104181 useless extension candidates. Maximal degree in co-relation 241663. Up to 24786 conditions per place. [2024-11-07 23:37:42,380 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 523 selfloop transitions, 83 changer transitions 0/643 dead transitions. [2024-11-07 23:37:42,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 643 transitions, 4111 flow [2024-11-07 23:37:42,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 23:37:42,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 23:37:42,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1531 transitions. [2024-11-07 23:37:42,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49707792207792206 [2024-11-07 23:37:42,383 INFO L175 Difference]: Start difference. First operand has 154 places, 222 transitions, 1032 flow. Second operand 22 states and 1531 transitions. [2024-11-07 23:37:42,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 643 transitions, 4111 flow [2024-11-07 23:37:42,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 643 transitions, 4097 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:42,818 INFO L231 Difference]: Finished difference. Result has 178 places, 266 transitions, 1469 flow [2024-11-07 23:37:42,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1469, PETRI_PLACES=178, PETRI_TRANSITIONS=266} [2024-11-07 23:37:42,818 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 48 predicate places. [2024-11-07 23:37:42,819 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 266 transitions, 1469 flow [2024-11-07 23:37:42,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:42,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:42,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:42,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 23:37:43,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:43,020 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:37:43,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:43,020 INFO L85 PathProgramCache]: Analyzing trace with hash 186206391, now seen corresponding path program 1 times [2024-11-07 23:37:43,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:43,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629582673] [2024-11-07 23:37:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:43,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:37:43,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:43,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629582673] [2024-11-07 23:37:43,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629582673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:37:43,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000519314] [2024-11-07 23:37:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:43,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:37:43,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:37:43,777 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 23:37:43,778 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 23:37:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:43,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-07 23:37:43,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:37:43,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 23:37:43,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-07 23:37:44,191 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-07 23:37:44,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-07 23:37:44,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-07 23:37:44,634 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-07 23:37:44,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-11-07 23:37:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:37:44,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:37:44,743 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_417 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_417) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) is different from false [2024-11-07 23:37:44,892 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 23:37:44,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2024-11-07 23:37:44,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 23:37:44,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2024-11-07 23:37:44,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-11-07 23:37:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-07 23:37:44,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000519314] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:37:44,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:37:44,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-07 23:37:44,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671392905] [2024-11-07 23:37:44,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:37:44,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 23:37:44,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:44,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 23:37:44,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=390, Unknown=1, NotChecked=40, Total=506 [2024-11-07 23:37:45,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-07 23:37:45,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 266 transitions, 1469 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:45,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:45,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-07 23:37:45,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:46,964 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((v_ArrVal_417 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_417) c_~get_5~0.base) .cse0) 4294967296))) (<= 0 c_~id_3~0) (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_178| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_178|) 0)) (forall ((v_ArrVal_417 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_178| v_ArrVal_417) c_~get_5~0.base) .cse0) 4294967296))))))) is different from false [2024-11-07 23:37:51,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-07 23:37:55,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-07 23:38:04,906 INFO L124 PetriNetUnfolderBase]: 75286/115583 cut-off events. [2024-11-07 23:38:04,906 INFO L125 PetriNetUnfolderBase]: For 28009/28453 co-relation queries the response was YES. [2024-11-07 23:38:05,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244349 conditions, 115583 events. 75286/115583 cut-off events. For 28009/28453 co-relation queries the response was YES. Maximal size of possible extension queue 4870. Compared 998222 event pairs, 20066 based on Foata normal form. 1172/102345 useless extension candidates. Maximal degree in co-relation 244327. Up to 27956 conditions per place. [2024-11-07 23:38:05,672 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 514 selfloop transitions, 82 changer transitions 0/633 dead transitions. [2024-11-07 23:38:05,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 633 transitions, 4324 flow [2024-11-07 23:38:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 23:38:05,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 23:38:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1518 transitions. [2024-11-07 23:38:05,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2024-11-07 23:38:05,674 INFO L175 Difference]: Start difference. First operand has 178 places, 266 transitions, 1469 flow. Second operand 22 states and 1518 transitions. [2024-11-07 23:38:05,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 633 transitions, 4324 flow [2024-11-07 23:38:06,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 633 transitions, 4317 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:06,029 INFO L231 Difference]: Finished difference. Result has 198 places, 269 transitions, 1677 flow [2024-11-07 23:38:06,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1449, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1677, PETRI_PLACES=198, PETRI_TRANSITIONS=269} [2024-11-07 23:38:06,030 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 68 predicate places. [2024-11-07 23:38:06,030 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 269 transitions, 1677 flow [2024-11-07 23:38:06,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:06,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:06,031 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:06,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:06,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:06,231 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:38:06,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:06,232 INFO L85 PathProgramCache]: Analyzing trace with hash 623257027, now seen corresponding path program 1 times [2024-11-07 23:38:06,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:06,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113017149] [2024-11-07 23:38:06,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:06,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 23:38:06,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:06,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113017149] [2024-11-07 23:38:06,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113017149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:06,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:06,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:06,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840156278] [2024-11-07 23:38:06,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:06,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:06,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:06,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:06,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-07 23:38:06,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 269 transitions, 1677 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:06,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:06,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-07 23:38:06,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:15,245 INFO L124 PetriNetUnfolderBase]: 64652/114459 cut-off events. [2024-11-07 23:38:15,245 INFO L125 PetriNetUnfolderBase]: For 73454/75246 co-relation queries the response was YES. [2024-11-07 23:38:15,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244979 conditions, 114459 events. 64652/114459 cut-off events. For 73454/75246 co-relation queries the response was YES. Maximal size of possible extension queue 5562. Compared 1209165 event pairs, 21738 based on Foata normal form. 4406/101067 useless extension candidates. Maximal degree in co-relation 244955. Up to 41375 conditions per place. [2024-11-07 23:38:16,083 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 287 selfloop transitions, 5 changer transitions 0/342 dead transitions. [2024-11-07 23:38:16,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 342 transitions, 2617 flow [2024-11-07 23:38:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:16,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:16,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2024-11-07 23:38:16,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7214285714285714 [2024-11-07 23:38:16,085 INFO L175 Difference]: Start difference. First operand has 198 places, 269 transitions, 1677 flow. Second operand 4 states and 404 transitions. [2024-11-07 23:38:16,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 342 transitions, 2617 flow [2024-11-07 23:38:16,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 342 transitions, 2478 flow, removed 2 selfloop flow, removed 16 redundant places. [2024-11-07 23:38:16,334 INFO L231 Difference]: Finished difference. Result has 187 places, 271 transitions, 1600 flow [2024-11-07 23:38:16,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1564, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1600, PETRI_PLACES=187, PETRI_TRANSITIONS=271} [2024-11-07 23:38:16,335 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 57 predicate places. [2024-11-07 23:38:16,335 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 271 transitions, 1600 flow [2024-11-07 23:38:16,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:16,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:16,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:16,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 23:38:16,335 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-07 23:38:16,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:16,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1477431397, now seen corresponding path program 1 times [2024-11-07 23:38:16,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:16,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649030994] [2024-11-07 23:38:16,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:16,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat