./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/loop-tiling-eq.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/loop-tiling-eq.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', '2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56'] 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/loop-tiling-eq.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 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:38:01,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:38:02,011 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:38:02,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:38:02,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:38:02,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:38:02,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:38:02,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:38:02,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:38:02,048 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:38:02,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:38:02,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:38:02,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:38:02,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:38:02,049 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:38:02,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:38:02,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:38:02,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:38:02,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:38:02,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:38:02,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:38:02,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:38:02,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:38:02,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:38:02,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:38:02,052 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:38:02,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:38:02,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:38:02,052 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 -> 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 [2024-11-07 23:38:02,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:38:02,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:38:02,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:38:02,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:38:02,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:38:02,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-07 23:38:03,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:38:03,803 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:38:03,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-07 23:38:03,810 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89f606a74/e001d43e10da49fb8c7e42f6eb35ce67/FLAG27862e05f [2024-11-07 23:38:04,168 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89f606a74/e001d43e10da49fb8c7e42f6eb35ce67 [2024-11-07 23:38:04,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:38:04,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:38:04,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:38:04,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:38:04,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:38:04,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12de3e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04, skipping insertion in model container [2024-11-07 23:38:04,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,200 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:38:04,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:38:04,373 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:38:04,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:38:04,405 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:38:04,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04 WrapperNode [2024-11-07 23:38:04,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:38:04,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:38:04,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:38:04,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:38:04,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,451 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 206 [2024-11-07 23:38:04,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:38:04,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:38:04,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:38:04,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:38:04,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,501 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 9, 3]. 64 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, 5, 1]. [2024-11-07 23:38:04,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:38:04,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:38:04,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:38:04,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:38:04,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (1/1) ... [2024-11-07 23:38:04,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:38:04,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:04,569 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 23:38:04,572 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 23:38:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 23:38:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 23:38:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 23:38:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:38:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:38:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:38:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:38:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:38:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:38:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:38:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:38:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 23:38:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 23:38:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 23:38:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:38:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:38:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:38:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:38:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:38:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:38:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:38:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:38:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:38:04,600 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 23:38:04,743 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:38:04,746 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:38:05,314 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:38:05,315 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:38:05,668 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:38:05,670 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-07 23:38:05,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:38:05 BoogieIcfgContainer [2024-11-07 23:38:05,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:38:05,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:38:05,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:38:05,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:38:05,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:38:04" (1/3) ... [2024-11-07 23:38:05,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a3f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:38:05, skipping insertion in model container [2024-11-07 23:38:05,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:04" (2/3) ... [2024-11-07 23:38:05,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a3f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:38:05, skipping insertion in model container [2024-11-07 23:38:05,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:38:05" (3/3) ... [2024-11-07 23:38:05,679 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2024-11-07 23:38:05,693 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:38:05,694 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-11-07 23:38:05,694 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:38:05,770 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:38:05,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 81 transitions, 176 flow [2024-11-07 23:38:05,882 INFO L124 PetriNetUnfolderBase]: 8/79 cut-off events. [2024-11-07 23:38:05,884 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 23:38:05,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 79 events. 8/79 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 170 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-11-07 23:38:05,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 81 transitions, 176 flow [2024-11-07 23:38:05,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 78 transitions, 168 flow [2024-11-07 23:38:05,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:38:05,916 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;@2c199037, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:38:05,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-07 23:38:05,920 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:38:05,921 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-07 23:38:05,921 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:38:05,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:05,922 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:38:05,922 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:05,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:05,927 INFO L85 PathProgramCache]: Analyzing trace with hash 776698, now seen corresponding path program 1 times [2024-11-07 23:38:05,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:05,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022961503] [2024-11-07 23:38:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:05,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 23:38:06,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230497237] [2024-11-07 23:38:06,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:06,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:06,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:06,018 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 23:38:06,020 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 23:38:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:06,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:06,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:06,211 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:38:06,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:06,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022961503] [2024-11-07 23:38:06,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 23:38:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230497237] [2024-11-07 23:38:06,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230497237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:06,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:38:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064359902] [2024-11-07 23:38:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:06,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:06,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:06,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:06,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:06,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 81 [2024-11-07 23:38:06,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 23:38:06,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:06,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 81 [2024-11-07 23:38:06,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:06,646 INFO L124 PetriNetUnfolderBase]: 226/661 cut-off events. [2024-11-07 23:38:06,646 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-07 23:38:06,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1100 conditions, 661 events. 226/661 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3866 event pairs, 150 based on Foata normal form. 1/480 useless extension candidates. Maximal degree in co-relation 446. Up to 199 conditions per place. [2024-11-07 23:38:06,654 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 69 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2024-11-07 23:38:06,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 111 transitions, 392 flow [2024-11-07 23:38:06,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:06,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2024-11-07 23:38:06,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2024-11-07 23:38:06,667 INFO L175 Difference]: Start difference. First operand has 77 places, 78 transitions, 168 flow. Second operand 5 states and 275 transitions. [2024-11-07 23:38:06,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 111 transitions, 392 flow [2024-11-07 23:38:06,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 111 transitions, 376 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:38:06,677 INFO L231 Difference]: Finished difference. Result has 76 places, 77 transitions, 171 flow [2024-11-07 23:38:06,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=76, PETRI_TRANSITIONS=77} [2024-11-07 23:38:06,682 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2024-11-07 23:38:06,682 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 77 transitions, 171 flow [2024-11-07 23:38:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 23:38:06,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:06,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 23:38:06,700 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 23:38:06,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-07 23:38:06,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:06,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash 24076230, now seen corresponding path program 1 times [2024-11-07 23:38:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:06,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180271919] [2024-11-07 23:38:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:06,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 23:38:06,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433879216] [2024-11-07 23:38:06,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:06,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:06,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:06,906 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 23:38:06,908 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 23:38:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:06,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:38:06,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:07,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:38:07,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:07,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180271919] [2024-11-07 23:38:07,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 23:38:07,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433879216] [2024-11-07 23:38:07,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433879216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:07,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:07,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:38:07,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520430814] [2024-11-07 23:38:07,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:07,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:07,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:07,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:07,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:07,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 81 [2024-11-07 23:38:07,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 77 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:07,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:07,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 81 [2024-11-07 23:38:07,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:07,250 INFO L124 PetriNetUnfolderBase]: 226/651 cut-off events. [2024-11-07 23:38:07,250 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 23:38:07,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 651 events. 226/651 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3821 event pairs, 150 based on Foata normal form. 2/475 useless extension candidates. Maximal degree in co-relation 532. Up to 200 conditions per place. [2024-11-07 23:38:07,257 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 65 selfloop transitions, 4 changer transitions 1/108 dead transitions. [2024-11-07 23:38:07,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 108 transitions, 377 flow [2024-11-07 23:38:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 273 transitions. [2024-11-07 23:38:07,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-11-07 23:38:07,262 INFO L175 Difference]: Start difference. First operand has 76 places, 77 transitions, 171 flow. Second operand 5 states and 273 transitions. [2024-11-07 23:38:07,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 108 transitions, 377 flow [2024-11-07 23:38:07,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 108 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:07,266 INFO L231 Difference]: Finished difference. Result has 79 places, 77 transitions, 182 flow [2024-11-07 23:38:07,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=79, PETRI_TRANSITIONS=77} [2024-11-07 23:38:07,268 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 2 predicate places. [2024-11-07 23:38:07,268 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 77 transitions, 182 flow [2024-11-07 23:38:07,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:07,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:07,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 23:38:07,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 23:38:07,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:07,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:07,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:07,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1664522554, now seen corresponding path program 1 times [2024-11-07 23:38:07,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:07,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460158530] [2024-11-07 23:38:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:07,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 23:38:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554199155] [2024-11-07 23:38:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:07,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:07,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:07,500 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 23:38:07,502 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 23:38:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:07,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:38:07,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:07,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:38:07,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:07,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460158530] [2024-11-07 23:38:07,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 23:38:07,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554199155] [2024-11-07 23:38:07,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554199155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:07,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:07,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:38:07,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594559497] [2024-11-07 23:38:07,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:07,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:07,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:07,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 81 [2024-11-07 23:38:07,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 77 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:07,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:07,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 81 [2024-11-07 23:38:07,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:08,114 INFO L124 PetriNetUnfolderBase]: 226/650 cut-off events. [2024-11-07 23:38:08,114 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-07 23:38:08,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 650 events. 226/650 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3808 event pairs, 150 based on Foata normal form. 1/474 useless extension candidates. Maximal degree in co-relation 533. Up to 198 conditions per place. [2024-11-07 23:38:08,121 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 64 selfloop transitions, 4 changer transitions 1/107 dead transitions. [2024-11-07 23:38:08,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 107 transitions, 382 flow [2024-11-07 23:38:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 270 transitions. [2024-11-07 23:38:08,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-07 23:38:08,124 INFO L175 Difference]: Start difference. First operand has 79 places, 77 transitions, 182 flow. Second operand 5 states and 270 transitions. [2024-11-07 23:38:08,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 107 transitions, 382 flow [2024-11-07 23:38:08,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 107 transitions, 374 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:38:08,126 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 178 flow [2024-11-07 23:38:08,127 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2024-11-07 23:38:08,127 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 2 predicate places. [2024-11-07 23:38:08,127 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 178 flow [2024-11-07 23:38:08,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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 23:38:08,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:08,128 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:08,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:08,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:08,333 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:08,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:08,333 INFO L85 PathProgramCache]: Analyzing trace with hash 60592401, now seen corresponding path program 1 times [2024-11-07 23:38:08,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:08,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484417696] [2024-11-07 23:38:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:08,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 23:38:08,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380258785] [2024-11-07 23:38:08,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:08,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:08,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:08,355 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 23:38:08,358 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 23:38:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:08,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:38:08,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:08,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:38:08,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:08,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484417696] [2024-11-07 23:38:08,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 23:38:08,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380258785] [2024-11-07 23:38:08,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380258785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:08,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:08,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:38:08,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020228112] [2024-11-07 23:38:08,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:08,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:38:08,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:38:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:38:08,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:08,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 76 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:08,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:08,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:08,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:09,107 INFO L124 PetriNetUnfolderBase]: 226/649 cut-off events. [2024-11-07 23:38:09,108 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-07 23:38:09,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 649 events. 226/649 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3758 event pairs, 150 based on Foata normal form. 1/473 useless extension candidates. Maximal degree in co-relation 534. Up to 196 conditions per place. [2024-11-07 23:38:09,114 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 63 selfloop transitions, 5 changer transitions 1/106 dead transitions. [2024-11-07 23:38:09,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 106 transitions, 378 flow [2024-11-07 23:38:09,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:38:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:38:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 304 transitions. [2024-11-07 23:38:09,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6255144032921811 [2024-11-07 23:38:09,118 INFO L175 Difference]: Start difference. First operand has 79 places, 76 transitions, 178 flow. Second operand 6 states and 304 transitions. [2024-11-07 23:38:09,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 106 transitions, 378 flow [2024-11-07 23:38:09,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 106 transitions, 371 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:38:09,122 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 177 flow [2024-11-07 23:38:09,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=177, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2024-11-07 23:38:09,124 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2024-11-07 23:38:09,124 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 177 flow [2024-11-07 23:38:09,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:09,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:09,125 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:09,141 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 23:38:09,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:09,326 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:09,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash -3795885, now seen corresponding path program 1 times [2024-11-07 23:38:09,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:09,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417979679] [2024-11-07 23:38:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:09,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:09,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417979679] [2024-11-07 23:38:09,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417979679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:09,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:09,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:09,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216631704] [2024-11-07 23:38:09,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:09,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:09,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:09,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:09,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:09,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:09,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 23:38:09,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:09,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:09,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:09,693 INFO L124 PetriNetUnfolderBase]: 232/673 cut-off events. [2024-11-07 23:38:09,693 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-07 23:38:09,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 673 events. 232/673 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3942 event pairs, 150 based on Foata normal form. 6/494 useless extension candidates. Maximal degree in co-relation 561. Up to 410 conditions per place. [2024-11-07 23:38:09,696 INFO L140 encePairwiseOnDemand]: 64/81 looper letters, 40 selfloop transitions, 11 changer transitions 0/84 dead transitions. [2024-11-07 23:38:09,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 84 transitions, 297 flow [2024-11-07 23:38:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:09,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2024-11-07 23:38:09,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2024-11-07 23:38:09,698 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 177 flow. Second operand 4 states and 212 transitions. [2024-11-07 23:38:09,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 84 transitions, 297 flow [2024-11-07 23:38:09,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 84 transitions, 281 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-07 23:38:09,701 INFO L231 Difference]: Finished difference. Result has 81 places, 84 transitions, 253 flow [2024-11-07 23:38:09,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=81, PETRI_TRANSITIONS=84} [2024-11-07 23:38:09,703 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2024-11-07 23:38:09,703 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 84 transitions, 253 flow [2024-11-07 23:38:09,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 23:38:09,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:09,704 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:09,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:38:09,704 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:09,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1413294371, now seen corresponding path program 1 times [2024-11-07 23:38:09,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:09,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976127944] [2024-11-07 23:38:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:09,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:09,864 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 23:38:09,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:09,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976127944] [2024-11-07 23:38:09,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976127944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:09,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054170281] [2024-11-07 23:38:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:09,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:09,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:09,868 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 23:38:09,870 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 23:38:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:09,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:09,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:09,966 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 23:38:09,967 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:38:09,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054170281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:09,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:38:09,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:38:09,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042960435] [2024-11-07 23:38:09,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:09,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:38:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:38:09,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:38:09,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:09,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 84 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:09,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:09,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:09,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:10,155 INFO L124 PetriNetUnfolderBase]: 232/667 cut-off events. [2024-11-07 23:38:10,155 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-07 23:38:10,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 667 events. 232/667 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3890 event pairs, 150 based on Foata normal form. 6/497 useless extension candidates. Maximal degree in co-relation 1033. Up to 380 conditions per place. [2024-11-07 23:38:10,159 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 29 selfloop transitions, 19 changer transitions 0/81 dead transitions. [2024-11-07 23:38:10,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 81 transitions, 337 flow [2024-11-07 23:38:10,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:38:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:38:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 284 transitions. [2024-11-07 23:38:10,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5843621399176955 [2024-11-07 23:38:10,161 INFO L175 Difference]: Start difference. First operand has 81 places, 84 transitions, 253 flow. Second operand 6 states and 284 transitions. [2024-11-07 23:38:10,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 81 transitions, 337 flow [2024-11-07 23:38:10,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 81 transitions, 337 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:38:10,164 INFO L231 Difference]: Finished difference. Result has 83 places, 81 transitions, 279 flow [2024-11-07 23:38:10,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=83, PETRI_TRANSITIONS=81} [2024-11-07 23:38:10,165 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2024-11-07 23:38:10,165 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 81 transitions, 279 flow [2024-11-07 23:38:10,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:10,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:10,166 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:10,183 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 23:38:10,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:10,366 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:10,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:10,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1410682909, now seen corresponding path program 1 times [2024-11-07 23:38:10,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:10,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241573071] [2024-11-07 23:38:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:10,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:10,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241573071] [2024-11-07 23:38:10,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241573071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:10,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:10,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:38:10,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540122965] [2024-11-07 23:38:10,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:10,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:10,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:10,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:10,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 81 [2024-11-07 23:38:10,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 81 transitions, 279 flow. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 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 23:38:10,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:10,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 81 [2024-11-07 23:38:10,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:10,728 INFO L124 PetriNetUnfolderBase]: 229/653 cut-off events. [2024-11-07 23:38:10,729 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-11-07 23:38:10,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 653 events. 229/653 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3784 event pairs, 150 based on Foata normal form. 1/488 useless extension candidates. Maximal degree in co-relation 1028. Up to 207 conditions per place. [2024-11-07 23:38:10,734 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 72 selfloop transitions, 6 changer transitions 1/113 dead transitions. [2024-11-07 23:38:10,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 113 transitions, 569 flow [2024-11-07 23:38:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 270 transitions. [2024-11-07 23:38:10,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-07 23:38:10,735 INFO L175 Difference]: Start difference. First operand has 83 places, 81 transitions, 279 flow. Second operand 5 states and 270 transitions. [2024-11-07 23:38:10,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 113 transitions, 569 flow [2024-11-07 23:38:10,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 113 transitions, 495 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-07 23:38:10,741 INFO L231 Difference]: Finished difference. Result has 84 places, 84 transitions, 269 flow [2024-11-07 23:38:10,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=269, PETRI_PLACES=84, PETRI_TRANSITIONS=84} [2024-11-07 23:38:10,742 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 7 predicate places. [2024-11-07 23:38:10,742 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 84 transitions, 269 flow [2024-11-07 23:38:10,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 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 23:38:10,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:10,743 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:10,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:38:10,743 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:10,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash -862451771, now seen corresponding path program 1 times [2024-11-07 23:38:10,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:10,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484972456] [2024-11-07 23:38:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:10,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:10,857 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 23:38:10,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:10,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484972456] [2024-11-07 23:38:10,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484972456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:10,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247892715] [2024-11-07 23:38:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:10,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:10,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:10,861 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 23:38:10,862 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 23:38:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:10,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:10,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:10,965 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 23:38:10,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:11,007 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 23:38:11,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247892715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:11,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:11,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:38:11,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983193324] [2024-11-07 23:38:11,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:11,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:38:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:11,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:38:11,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:38:11,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:11,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 269 flow. Second operand has 12 states, 12 states have (on average 40.25) internal successors, (483), 12 states have internal predecessors, (483), 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 23:38:11,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:11,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:11,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:11,288 INFO L124 PetriNetUnfolderBase]: 244/713 cut-off events. [2024-11-07 23:38:11,288 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-07 23:38:11,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 713 events. 244/713 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4335 event pairs, 150 based on Foata normal form. 15/551 useless extension candidates. Maximal degree in co-relation 1024. Up to 406 conditions per place. [2024-11-07 23:38:11,291 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 39 selfloop transitions, 42 changer transitions 0/114 dead transitions. [2024-11-07 23:38:11,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 114 transitions, 581 flow [2024-11-07 23:38:11,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:38:11,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:38:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 473 transitions. [2024-11-07 23:38:11,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5839506172839506 [2024-11-07 23:38:11,295 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 269 flow. Second operand 10 states and 473 transitions. [2024-11-07 23:38:11,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 114 transitions, 581 flow [2024-11-07 23:38:11,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 114 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:11,299 INFO L231 Difference]: Finished difference. Result has 94 places, 114 transitions, 552 flow [2024-11-07 23:38:11,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=552, PETRI_PLACES=94, PETRI_TRANSITIONS=114} [2024-11-07 23:38:11,300 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 17 predicate places. [2024-11-07 23:38:11,301 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 114 transitions, 552 flow [2024-11-07 23:38:11,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.25) internal successors, (483), 12 states have internal predecessors, (483), 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 23:38:11,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:11,302 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:11,319 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 23:38:11,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-07 23:38:11,507 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:11,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1544502544, now seen corresponding path program 1 times [2024-11-07 23:38:11,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:11,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411351472] [2024-11-07 23:38:11,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:11,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:11,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:11,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411351472] [2024-11-07 23:38:11,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411351472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:11,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:11,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:11,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051568136] [2024-11-07 23:38:11,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:11,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:11,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:11,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:11,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:11,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2024-11-07 23:38:11,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 552 flow. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 23:38:11,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:11,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2024-11-07 23:38:11,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:11,802 INFO L124 PetriNetUnfolderBase]: 476/1165 cut-off events. [2024-11-07 23:38:11,802 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-11-07 23:38:11,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 1165 events. 476/1165 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7243 event pairs, 234 based on Foata normal form. 32/908 useless extension candidates. Maximal degree in co-relation 2074. Up to 645 conditions per place. [2024-11-07 23:38:11,809 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 101 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2024-11-07 23:38:11,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 139 transitions, 814 flow [2024-11-07 23:38:11,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:11,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2024-11-07 23:38:11,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7283950617283951 [2024-11-07 23:38:11,811 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 552 flow. Second operand 4 states and 236 transitions. [2024-11-07 23:38:11,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 139 transitions, 814 flow [2024-11-07 23:38:11,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 139 transitions, 778 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:11,816 INFO L231 Difference]: Finished difference. Result has 97 places, 117 transitions, 545 flow [2024-11-07 23:38:11,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=545, PETRI_PLACES=97, PETRI_TRANSITIONS=117} [2024-11-07 23:38:11,818 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 20 predicate places. [2024-11-07 23:38:11,818 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 117 transitions, 545 flow [2024-11-07 23:38:11,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 23:38:11,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:11,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:11,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:38:11,819 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:11,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:11,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1745485225, now seen corresponding path program 1 times [2024-11-07 23:38:11,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:11,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399267204] [2024-11-07 23:38:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:11,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:11,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:11,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399267204] [2024-11-07 23:38:11,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399267204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:11,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:11,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:11,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421122091] [2024-11-07 23:38:11,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:11,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:11,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:11,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:11,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:11,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2024-11-07 23:38:11,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 117 transitions, 545 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 23:38:11,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:11,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2024-11-07 23:38:11,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:12,092 INFO L124 PetriNetUnfolderBase]: 382/1090 cut-off events. [2024-11-07 23:38:12,092 INFO L125 PetriNetUnfolderBase]: For 472/480 co-relation queries the response was YES. [2024-11-07 23:38:12,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 1090 events. 382/1090 cut-off events. For 472/480 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7501 event pairs, 234 based on Foata normal form. 1/871 useless extension candidates. Maximal degree in co-relation 2196. Up to 639 conditions per place. [2024-11-07 23:38:12,099 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 83 selfloop transitions, 18 changer transitions 0/135 dead transitions. [2024-11-07 23:38:12,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 135 transitions, 853 flow [2024-11-07 23:38:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2024-11-07 23:38:12,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6697530864197531 [2024-11-07 23:38:12,101 INFO L175 Difference]: Start difference. First operand has 97 places, 117 transitions, 545 flow. Second operand 4 states and 217 transitions. [2024-11-07 23:38:12,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 135 transitions, 853 flow [2024-11-07 23:38:12,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 135 transitions, 850 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:12,106 INFO L231 Difference]: Finished difference. Result has 101 places, 124 transitions, 650 flow [2024-11-07 23:38:12,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=650, PETRI_PLACES=101, PETRI_TRANSITIONS=124} [2024-11-07 23:38:12,107 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 24 predicate places. [2024-11-07 23:38:12,107 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 124 transitions, 650 flow [2024-11-07 23:38:12,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 23:38:12,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:12,108 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:12,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:38:12,108 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:12,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash 291477240, now seen corresponding path program 1 times [2024-11-07 23:38:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:12,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297086988] [2024-11-07 23:38:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:12,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:38:12,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:12,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297086988] [2024-11-07 23:38:12,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297086988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:12,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:12,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:38:12,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250323020] [2024-11-07 23:38:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:12,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:12,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:12,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:12,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:12,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 81 [2024-11-07 23:38:12,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 124 transitions, 650 flow. Second operand has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 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 23:38:12,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:12,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 81 [2024-11-07 23:38:12,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:12,526 INFO L124 PetriNetUnfolderBase]: 538/1545 cut-off events. [2024-11-07 23:38:12,527 INFO L125 PetriNetUnfolderBase]: For 666/674 co-relation queries the response was YES. [2024-11-07 23:38:12,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3389 conditions, 1545 events. 538/1545 cut-off events. For 666/674 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 10899 event pairs, 294 based on Foata normal form. 32/1289 useless extension candidates. Maximal degree in co-relation 3132. Up to 641 conditions per place. [2024-11-07 23:38:12,537 INFO L140 encePairwiseOnDemand]: 69/81 looper letters, 142 selfloop transitions, 20 changer transitions 0/198 dead transitions. [2024-11-07 23:38:12,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 198 transitions, 1405 flow [2024-11-07 23:38:12,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:38:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:38:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 355 transitions. [2024-11-07 23:38:12,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7304526748971193 [2024-11-07 23:38:12,540 INFO L175 Difference]: Start difference. First operand has 101 places, 124 transitions, 650 flow. Second operand 6 states and 355 transitions. [2024-11-07 23:38:12,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 198 transitions, 1405 flow [2024-11-07 23:38:12,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 198 transitions, 1379 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:12,548 INFO L231 Difference]: Finished difference. Result has 108 places, 133 transitions, 779 flow [2024-11-07 23:38:12,548 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=779, PETRI_PLACES=108, PETRI_TRANSITIONS=133} [2024-11-07 23:38:12,549 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 31 predicate places. [2024-11-07 23:38:12,549 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 133 transitions, 779 flow [2024-11-07 23:38:12,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 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 23:38:12,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:12,550 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:12,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:38:12,550 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:12,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash -398301331, now seen corresponding path program 1 times [2024-11-07 23:38:12,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:12,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828628123] [2024-11-07 23:38:12,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:12,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:12,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:12,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:12,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828628123] [2024-11-07 23:38:12,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828628123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:12,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:12,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:38:12,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278724784] [2024-11-07 23:38:12,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:12,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:12,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:12,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:12,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:12,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:12,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 133 transitions, 779 flow. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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 23:38:12,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:12,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:12,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:12,915 INFO L124 PetriNetUnfolderBase]: 440/1119 cut-off events. [2024-11-07 23:38:12,916 INFO L125 PetriNetUnfolderBase]: For 889/889 co-relation queries the response was YES. [2024-11-07 23:38:12,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3039 conditions, 1119 events. 440/1119 cut-off events. For 889/889 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6600 event pairs, 267 based on Foata normal form. 0/1008 useless extension candidates. Maximal degree in co-relation 2769. Up to 624 conditions per place. [2024-11-07 23:38:12,923 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 138 selfloop transitions, 5 changer transitions 13/188 dead transitions. [2024-11-07 23:38:12,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 188 transitions, 1418 flow [2024-11-07 23:38:12,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 262 transitions. [2024-11-07 23:38:12,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6469135802469136 [2024-11-07 23:38:12,925 INFO L175 Difference]: Start difference. First operand has 108 places, 133 transitions, 779 flow. Second operand 5 states and 262 transitions. [2024-11-07 23:38:12,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 188 transitions, 1418 flow [2024-11-07 23:38:12,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 188 transitions, 1414 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-07 23:38:12,933 INFO L231 Difference]: Finished difference. Result has 114 places, 133 transitions, 773 flow [2024-11-07 23:38:12,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=777, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=773, PETRI_PLACES=114, PETRI_TRANSITIONS=133} [2024-11-07 23:38:12,934 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 37 predicate places. [2024-11-07 23:38:12,935 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 133 transitions, 773 flow [2024-11-07 23:38:12,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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 23:38:12,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:12,936 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:12,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 23:38:12,936 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:12,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:12,937 INFO L85 PathProgramCache]: Analyzing trace with hash -815446169, now seen corresponding path program 1 times [2024-11-07 23:38:12,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:12,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539283363] [2024-11-07 23:38:12,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:12,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:13,032 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 23:38:13,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539283363] [2024-11-07 23:38:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539283363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434437499] [2024-11-07 23:38:13,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:13,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:13,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:13,035 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 23:38:13,037 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 23:38:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:13,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:13,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:13,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:38:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434437499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:13,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:38:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:38:13,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774999932] [2024-11-07 23:38:13,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:13,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:38:13,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:13,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:38:13,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:38:13,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2024-11-07 23:38:13,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 133 transitions, 773 flow. Second operand has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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 23:38:13,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:13,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2024-11-07 23:38:13,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:13,373 INFO L124 PetriNetUnfolderBase]: 380/1051 cut-off events. [2024-11-07 23:38:13,373 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-07 23:38:13,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2930 conditions, 1051 events. 380/1051 cut-off events. For 953/953 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6364 event pairs, 242 based on Foata normal form. 2/913 useless extension candidates. Maximal degree in co-relation 2659. Up to 655 conditions per place. [2024-11-07 23:38:13,381 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 84 selfloop transitions, 27 changer transitions 0/145 dead transitions. [2024-11-07 23:38:13,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 145 transitions, 1092 flow [2024-11-07 23:38:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:38:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:38:13,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 301 transitions. [2024-11-07 23:38:13,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6193415637860082 [2024-11-07 23:38:13,383 INFO L175 Difference]: Start difference. First operand has 114 places, 133 transitions, 773 flow. Second operand 6 states and 301 transitions. [2024-11-07 23:38:13,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 145 transitions, 1092 flow [2024-11-07 23:38:13,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 145 transitions, 1065 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:38:13,391 INFO L231 Difference]: Finished difference. Result has 115 places, 132 transitions, 800 flow [2024-11-07 23:38:13,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=115, PETRI_TRANSITIONS=132} [2024-11-07 23:38:13,392 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 38 predicate places. [2024-11-07 23:38:13,392 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 132 transitions, 800 flow [2024-11-07 23:38:13,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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 23:38:13,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:13,392 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:13,410 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 23:38:13,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:13,593 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:13,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:13,593 INFO L85 PathProgramCache]: Analyzing trace with hash 490973334, now seen corresponding path program 1 times [2024-11-07 23:38:13,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:13,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245920787] [2024-11-07 23:38:13,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:13,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245920787] [2024-11-07 23:38:13,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245920787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190299592] [2024-11-07 23:38:13,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:13,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:13,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:13,688 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 23:38:13,689 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 23:38:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:13,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:13,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:13,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:13,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190299592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:13,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:13,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:38:13,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445099776] [2024-11-07 23:38:13,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:13,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:38:13,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:13,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:38:13,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:38:13,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2024-11-07 23:38:13,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 132 transitions, 800 flow. Second operand has 12 states, 12 states have (on average 44.916666666666664) internal successors, (539), 12 states have internal predecessors, (539), 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 23:38:13,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:13,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2024-11-07 23:38:13,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:14,161 INFO L124 PetriNetUnfolderBase]: 416/1175 cut-off events. [2024-11-07 23:38:14,162 INFO L125 PetriNetUnfolderBase]: For 1201/1201 co-relation queries the response was YES. [2024-11-07 23:38:14,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 1175 events. 416/1175 cut-off events. For 1201/1201 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7065 event pairs, 242 based on Foata normal form. 6/1057 useless extension candidates. Maximal degree in co-relation 3014. Up to 699 conditions per place. [2024-11-07 23:38:14,170 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 131 selfloop transitions, 43 changer transitions 0/208 dead transitions. [2024-11-07 23:38:14,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 208 transitions, 1752 flow [2024-11-07 23:38:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:38:14,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:38:14,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 493 transitions. [2024-11-07 23:38:14,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.608641975308642 [2024-11-07 23:38:14,172 INFO L175 Difference]: Start difference. First operand has 115 places, 132 transitions, 800 flow. Second operand 10 states and 493 transitions. [2024-11-07 23:38:14,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 208 transitions, 1752 flow [2024-11-07 23:38:14,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 208 transitions, 1637 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-11-07 23:38:14,182 INFO L231 Difference]: Finished difference. Result has 123 places, 156 transitions, 1030 flow [2024-11-07 23:38:14,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1030, PETRI_PLACES=123, PETRI_TRANSITIONS=156} [2024-11-07 23:38:14,183 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 46 predicate places. [2024-11-07 23:38:14,183 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 156 transitions, 1030 flow [2024-11-07 23:38:14,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 44.916666666666664) internal successors, (539), 12 states have internal predecessors, (539), 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 23:38:14,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:14,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:14,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 23:38:14,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:14,388 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:14,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:14,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2121039192, now seen corresponding path program 1 times [2024-11-07 23:38:14,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:14,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457004891] [2024-11-07 23:38:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:14,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:14,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:14,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457004891] [2024-11-07 23:38:14,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457004891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:14,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:14,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:38:14,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924857534] [2024-11-07 23:38:14,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:14,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:14,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:14,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:14,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:14,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 81 [2024-11-07 23:38:14,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 156 transitions, 1030 flow. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 23:38:14,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:14,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 81 [2024-11-07 23:38:14,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:14,750 INFO L124 PetriNetUnfolderBase]: 414/1173 cut-off events. [2024-11-07 23:38:14,751 INFO L125 PetriNetUnfolderBase]: For 1236/1236 co-relation queries the response was YES. [2024-11-07 23:38:14,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3515 conditions, 1173 events. 414/1173 cut-off events. For 1236/1236 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6955 event pairs, 242 based on Foata normal form. 2/1053 useless extension candidates. Maximal degree in co-relation 3220. Up to 590 conditions per place. [2024-11-07 23:38:14,759 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 161 selfloop transitions, 10 changer transitions 6/210 dead transitions. [2024-11-07 23:38:14,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 210 transitions, 1730 flow [2024-11-07 23:38:14,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 269 transitions. [2024-11-07 23:38:14,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6641975308641975 [2024-11-07 23:38:14,761 INFO L175 Difference]: Start difference. First operand has 123 places, 156 transitions, 1030 flow. Second operand 5 states and 269 transitions. [2024-11-07 23:38:14,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 210 transitions, 1730 flow [2024-11-07 23:38:14,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 210 transitions, 1700 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:14,771 INFO L231 Difference]: Finished difference. Result has 125 places, 155 transitions, 1013 flow [2024-11-07 23:38:14,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1013, PETRI_PLACES=125, PETRI_TRANSITIONS=155} [2024-11-07 23:38:14,772 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2024-11-07 23:38:14,772 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 155 transitions, 1013 flow [2024-11-07 23:38:14,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 23:38:14,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:14,772 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:14,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 23:38:14,772 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:14,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:14,773 INFO L85 PathProgramCache]: Analyzing trace with hash 127811983, now seen corresponding path program 2 times [2024-11-07 23:38:14,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:14,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083541946] [2024-11-07 23:38:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:14,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:14,949 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 23:38:14,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:14,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083541946] [2024-11-07 23:38:14,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083541946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:14,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388544883] [2024-11-07 23:38:14,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:38:14,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:14,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:14,951 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:38:14,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 23:38:15,028 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:38:15,029 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:38:15,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 23:38:15,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:25,320 WARN L873 $PredicateComparison]: unable to prove that (exists ((~M~0 Int) (~N~0 Int)) (let ((.cse0 (* ~N~0 ~M~0))) (and (<= .cse0 2147483647) (<= (+ |c_ULTIMATE.start_create_fresh_int_array_#t~post26#1| 1) .cse0)))) is different from true [2024-11-07 23:38:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 8 not checked. [2024-11-07 23:38:25,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:27,553 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 23:38:27,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388544883] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:27,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:27,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 15 [2024-11-07 23:38:27,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248784689] [2024-11-07 23:38:27,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:27,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 23:38:27,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:27,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 23:38:27,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=146, Unknown=13, NotChecked=26, Total=240 [2024-11-07 23:38:27,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 81 [2024-11-07 23:38:27,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 155 transitions, 1013 flow. Second operand has 16 states, 16 states have (on average 38.0) internal successors, (608), 16 states have internal predecessors, (608), 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 23:38:27,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:27,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 81 [2024-11-07 23:38:27,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:34,171 INFO L124 PetriNetUnfolderBase]: 430/1353 cut-off events. [2024-11-07 23:38:34,171 INFO L125 PetriNetUnfolderBase]: For 1324/1324 co-relation queries the response was YES. [2024-11-07 23:38:34,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3953 conditions, 1353 events. 430/1353 cut-off events. For 1324/1324 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8778 event pairs, 242 based on Foata normal form. 18/1203 useless extension candidates. Maximal degree in co-relation 3605. Up to 749 conditions per place. [2024-11-07 23:38:34,190 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 71 selfloop transitions, 83 changer transitions 0/183 dead transitions. [2024-11-07 23:38:34,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 183 transitions, 1459 flow [2024-11-07 23:38:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 23:38:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 23:38:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 968 transitions. [2024-11-07 23:38:34,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49794238683127573 [2024-11-07 23:38:34,218 INFO L175 Difference]: Start difference. First operand has 125 places, 155 transitions, 1013 flow. Second operand 24 states and 968 transitions. [2024-11-07 23:38:34,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 183 transitions, 1459 flow [2024-11-07 23:38:34,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 183 transitions, 1425 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-07 23:38:34,232 INFO L231 Difference]: Finished difference. Result has 145 places, 168 transitions, 1294 flow [2024-11-07 23:38:34,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1294, PETRI_PLACES=145, PETRI_TRANSITIONS=168} [2024-11-07 23:38:34,233 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 68 predicate places. [2024-11-07 23:38:34,234 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 168 transitions, 1294 flow [2024-11-07 23:38:34,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 38.0) internal successors, (608), 16 states have internal predecessors, (608), 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 23:38:34,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:34,234 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] [2024-11-07 23:38:34,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 23:38:34,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:34,439 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:34,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:34,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1846403656, now seen corresponding path program 1 times [2024-11-07 23:38:34,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:34,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064930440] [2024-11-07 23:38:34,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:34,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:34,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:34,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:34,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064930440] [2024-11-07 23:38:34,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064930440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:34,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:34,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:38:34,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597441066] [2024-11-07 23:38:34,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:34,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:34,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:34,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:34,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 81 [2024-11-07 23:38:34,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 168 transitions, 1294 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:34,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:34,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 81 [2024-11-07 23:38:34,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:35,010 INFO L124 PetriNetUnfolderBase]: 649/1930 cut-off events. [2024-11-07 23:38:35,010 INFO L125 PetriNetUnfolderBase]: For 2931/2951 co-relation queries the response was YES. [2024-11-07 23:38:35,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6165 conditions, 1930 events. 649/1930 cut-off events. For 2931/2951 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12774 event pairs, 338 based on Foata normal form. 2/1721 useless extension candidates. Maximal degree in co-relation 5400. Up to 865 conditions per place. [2024-11-07 23:38:35,024 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 188 selfloop transitions, 28 changer transitions 1/251 dead transitions. [2024-11-07 23:38:35,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 251 transitions, 2427 flow [2024-11-07 23:38:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:38:35,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:38:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 340 transitions. [2024-11-07 23:38:35,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6995884773662552 [2024-11-07 23:38:35,028 INFO L175 Difference]: Start difference. First operand has 145 places, 168 transitions, 1294 flow. Second operand 6 states and 340 transitions. [2024-11-07 23:38:35,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 251 transitions, 2427 flow [2024-11-07 23:38:35,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 251 transitions, 2144 flow, removed 26 selfloop flow, removed 11 redundant places. [2024-11-07 23:38:35,046 INFO L231 Difference]: Finished difference. Result has 141 places, 182 transitions, 1317 flow [2024-11-07 23:38:35,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1091, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1317, PETRI_PLACES=141, PETRI_TRANSITIONS=182} [2024-11-07 23:38:35,046 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 64 predicate places. [2024-11-07 23:38:35,046 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 182 transitions, 1317 flow [2024-11-07 23:38:35,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:35,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:35,047 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] [2024-11-07 23:38:35,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 23:38:35,047 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:35,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:35,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1846403689, now seen corresponding path program 1 times [2024-11-07 23:38:35,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:35,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810688402] [2024-11-07 23:38:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:35,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:38:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810688402] [2024-11-07 23:38:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810688402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:35,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:35,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996817908] [2024-11-07 23:38:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:35,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:35,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:35,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 81 [2024-11-07 23:38:35,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 182 transitions, 1317 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 23:38:35,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:35,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 81 [2024-11-07 23:38:35,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:35,505 INFO L124 PetriNetUnfolderBase]: 1115/2784 cut-off events. [2024-11-07 23:38:35,505 INFO L125 PetriNetUnfolderBase]: For 3638/3702 co-relation queries the response was YES. [2024-11-07 23:38:35,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8220 conditions, 2784 events. 1115/2784 cut-off events. For 3638/3702 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 18514 event pairs, 488 based on Foata normal form. 80/2634 useless extension candidates. Maximal degree in co-relation 7532. Up to 1635 conditions per place. [2024-11-07 23:38:35,520 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 176 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2024-11-07 23:38:35,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 213 transitions, 1835 flow [2024-11-07 23:38:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2024-11-07 23:38:35,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6975308641975309 [2024-11-07 23:38:35,521 INFO L175 Difference]: Start difference. First operand has 141 places, 182 transitions, 1317 flow. Second operand 4 states and 226 transitions. [2024-11-07 23:38:35,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 213 transitions, 1835 flow [2024-11-07 23:38:35,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 213 transitions, 1835 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:38:35,539 INFO L231 Difference]: Finished difference. Result has 146 places, 186 transitions, 1372 flow [2024-11-07 23:38:35,540 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1372, PETRI_PLACES=146, PETRI_TRANSITIONS=186} [2024-11-07 23:38:35,540 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 69 predicate places. [2024-11-07 23:38:35,540 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 186 transitions, 1372 flow [2024-11-07 23:38:35,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 23:38:35,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:35,540 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] [2024-11-07 23:38:35,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 23:38:35,541 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:35,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:35,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1644240363, now seen corresponding path program 1 times [2024-11-07 23:38:35,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:35,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641456028] [2024-11-07 23:38:35,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:35,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:38:35,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641456028] [2024-11-07 23:38:35,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641456028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823276008] [2024-11-07 23:38:35,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:35,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:35,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:35,636 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:38:35,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 23:38:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:35,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:38:35,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:38:35,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:38:35,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823276008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:35,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:35,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-07 23:38:35,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212586818] [2024-11-07 23:38:35,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:35,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:38:35,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:38:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:38:36,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 81 [2024-11-07 23:38:36,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 186 transitions, 1372 flow. Second operand has 19 states, 19 states have (on average 39.0) internal successors, (741), 19 states have internal predecessors, (741), 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 23:38:36,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:36,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 81 [2024-11-07 23:38:36,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:37,242 INFO L124 PetriNetUnfolderBase]: 1526/3739 cut-off events. [2024-11-07 23:38:37,243 INFO L125 PetriNetUnfolderBase]: For 6044/6088 co-relation queries the response was YES. [2024-11-07 23:38:37,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12241 conditions, 3739 events. 1526/3739 cut-off events. For 6044/6088 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 26114 event pairs, 279 based on Foata normal form. 52/3614 useless extension candidates. Maximal degree in co-relation 11217. Up to 1111 conditions per place. [2024-11-07 23:38:37,264 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 319 selfloop transitions, 66 changer transitions 15/430 dead transitions. [2024-11-07 23:38:37,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 430 transitions, 3852 flow [2024-11-07 23:38:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 23:38:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 23:38:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 798 transitions. [2024-11-07 23:38:37,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.579520697167756 [2024-11-07 23:38:37,268 INFO L175 Difference]: Start difference. First operand has 146 places, 186 transitions, 1372 flow. Second operand 17 states and 798 transitions. [2024-11-07 23:38:37,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 430 transitions, 3852 flow [2024-11-07 23:38:37,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 430 transitions, 3807 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:37,298 INFO L231 Difference]: Finished difference. Result has 162 places, 215 transitions, 1823 flow [2024-11-07 23:38:37,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1363, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1823, PETRI_PLACES=162, PETRI_TRANSITIONS=215} [2024-11-07 23:38:37,299 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 85 predicate places. [2024-11-07 23:38:37,300 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 215 transitions, 1823 flow [2024-11-07 23:38:37,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 39.0) internal successors, (741), 19 states have internal predecessors, (741), 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 23:38:37,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:37,301 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:37,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:37,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:37,506 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:37,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:37,506 INFO L85 PathProgramCache]: Analyzing trace with hash -331478038, now seen corresponding path program 1 times [2024-11-07 23:38:37,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:37,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826810132] [2024-11-07 23:38:37,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:37,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 23:38:37,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:37,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826810132] [2024-11-07 23:38:37,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826810132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:37,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:37,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:38:37,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322077193] [2024-11-07 23:38:37,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:37,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:37,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:37,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:37,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:37,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 81 [2024-11-07 23:38:37,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 215 transitions, 1823 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 23:38:37,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:37,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 81 [2024-11-07 23:38:37,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:38,046 INFO L124 PetriNetUnfolderBase]: 1410/3728 cut-off events. [2024-11-07 23:38:38,046 INFO L125 PetriNetUnfolderBase]: For 8315/8320 co-relation queries the response was YES. [2024-11-07 23:38:38,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12890 conditions, 3728 events. 1410/3728 cut-off events. For 8315/8320 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 27640 event pairs, 857 based on Foata normal form. 2/3614 useless extension candidates. Maximal degree in co-relation 11777. Up to 2641 conditions per place. [2024-11-07 23:38:38,066 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 168 selfloop transitions, 13 changer transitions 0/214 dead transitions. [2024-11-07 23:38:38,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 214 transitions, 2173 flow [2024-11-07 23:38:38,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 223 transitions. [2024-11-07 23:38:38,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882716049382716 [2024-11-07 23:38:38,068 INFO L175 Difference]: Start difference. First operand has 162 places, 215 transitions, 1823 flow. Second operand 4 states and 223 transitions. [2024-11-07 23:38:38,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 214 transitions, 2173 flow [2024-11-07 23:38:38,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 214 transitions, 2125 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-07 23:38:38,103 INFO L231 Difference]: Finished difference. Result has 162 places, 214 transitions, 1793 flow [2024-11-07 23:38:38,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1763, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1793, PETRI_PLACES=162, PETRI_TRANSITIONS=214} [2024-11-07 23:38:38,104 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 85 predicate places. [2024-11-07 23:38:38,104 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 214 transitions, 1793 flow [2024-11-07 23:38:38,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 23:38:38,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:38,104 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] [2024-11-07 23:38:38,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 23:38:38,105 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:38,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 396599330, now seen corresponding path program 1 times [2024-11-07 23:38:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:38,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240174458] [2024-11-07 23:38:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:38:38,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:38,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240174458] [2024-11-07 23:38:38,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240174458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:38,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230789129] [2024-11-07 23:38:38,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:38,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:38,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:38,197 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:38:38,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 23:38:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:38,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 23:38:38,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:38,390 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:38,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230789129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:38,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:38,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2024-11-07 23:38:38,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8398851] [2024-11-07 23:38:38,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:38,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 23:38:38,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:38,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 23:38:38,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-07 23:38:38,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 81 [2024-11-07 23:38:38,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 214 transitions, 1793 flow. Second operand has 16 states, 16 states have (on average 39.5) internal successors, (632), 16 states have internal predecessors, (632), 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 23:38:38,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:38,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 81 [2024-11-07 23:38:38,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:39,725 INFO L124 PetriNetUnfolderBase]: 2307/5546 cut-off events. [2024-11-07 23:38:39,725 INFO L125 PetriNetUnfolderBase]: For 7484/7532 co-relation queries the response was YES. [2024-11-07 23:38:39,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16813 conditions, 5546 events. 2307/5546 cut-off events. For 7484/7532 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 41561 event pairs, 346 based on Foata normal form. 124/5404 useless extension candidates. Maximal degree in co-relation 15701. Up to 850 conditions per place. [2024-11-07 23:38:39,757 INFO L140 encePairwiseOnDemand]: 71/81 looper letters, 352 selfloop transitions, 41 changer transitions 0/421 dead transitions. [2024-11-07 23:38:39,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 421 transitions, 3879 flow [2024-11-07 23:38:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 23:38:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 23:38:39,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 603 transitions. [2024-11-07 23:38:39,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5726495726495726 [2024-11-07 23:38:39,759 INFO L175 Difference]: Start difference. First operand has 162 places, 214 transitions, 1793 flow. Second operand 13 states and 603 transitions. [2024-11-07 23:38:39,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 421 transitions, 3879 flow [2024-11-07 23:38:39,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 421 transitions, 3855 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:39,801 INFO L231 Difference]: Finished difference. Result has 172 places, 219 transitions, 1893 flow [2024-11-07 23:38:39,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1765, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1893, PETRI_PLACES=172, PETRI_TRANSITIONS=219} [2024-11-07 23:38:39,802 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 95 predicate places. [2024-11-07 23:38:39,802 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 219 transitions, 1893 flow [2024-11-07 23:38:39,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 39.5) internal successors, (632), 16 states have internal predecessors, (632), 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 23:38:39,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:39,803 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] [2024-11-07 23:38:39,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:40,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-07 23:38:40,004 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:40,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:40,004 INFO L85 PathProgramCache]: Analyzing trace with hash 813241376, now seen corresponding path program 1 times [2024-11-07 23:38:40,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:40,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746507462] [2024-11-07 23:38:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:40,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:40,076 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 23:38:40,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:40,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746507462] [2024-11-07 23:38:40,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746507462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:40,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:40,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:40,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772808464] [2024-11-07 23:38:40,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:40,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:40,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:40,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:40,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:40,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:40,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 219 transitions, 1893 flow. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 23:38:40,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:40,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:40,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:41,009 INFO L124 PetriNetUnfolderBase]: 3750/7983 cut-off events. [2024-11-07 23:38:41,009 INFO L125 PetriNetUnfolderBase]: For 12541/12627 co-relation queries the response was YES. [2024-11-07 23:38:41,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24402 conditions, 7983 events. 3750/7983 cut-off events. For 12541/12627 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 57300 event pairs, 1820 based on Foata normal form. 0/7495 useless extension candidates. Maximal degree in co-relation 23289. Up to 4812 conditions per place. [2024-11-07 23:38:41,038 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 226 selfloop transitions, 10 changer transitions 0/262 dead transitions. [2024-11-07 23:38:41,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 262 transitions, 2557 flow [2024-11-07 23:38:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-11-07 23:38:41,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6759259259259259 [2024-11-07 23:38:41,040 INFO L175 Difference]: Start difference. First operand has 172 places, 219 transitions, 1893 flow. Second operand 4 states and 219 transitions. [2024-11-07 23:38:41,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 262 transitions, 2557 flow [2024-11-07 23:38:41,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 262 transitions, 2501 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-07 23:38:41,068 INFO L231 Difference]: Finished difference. Result has 172 places, 224 transitions, 1912 flow [2024-11-07 23:38:41,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1841, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1912, PETRI_PLACES=172, PETRI_TRANSITIONS=224} [2024-11-07 23:38:41,069 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 95 predicate places. [2024-11-07 23:38:41,069 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 224 transitions, 1912 flow [2024-11-07 23:38:41,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 23:38:41,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:41,069 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] [2024-11-07 23:38:41,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 23:38:41,069 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:41,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:41,070 INFO L85 PathProgramCache]: Analyzing trace with hash -559320266, now seen corresponding path program 1 times [2024-11-07 23:38:41,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:41,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883366225] [2024-11-07 23:38:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:41,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:41,224 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 23:38:41,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:41,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883366225] [2024-11-07 23:38:41,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883366225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:41,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:41,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:41,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059469684] [2024-11-07 23:38:41,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:41,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:41,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:41,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:41,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:41,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 81 [2024-11-07 23:38:41,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 224 transitions, 1912 flow. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 23:38:41,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:41,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 81 [2024-11-07 23:38:41,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:42,350 INFO L124 PetriNetUnfolderBase]: 3345/7485 cut-off events. [2024-11-07 23:38:42,351 INFO L125 PetriNetUnfolderBase]: For 13028/13096 co-relation queries the response was YES. [2024-11-07 23:38:42,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23662 conditions, 7485 events. 3345/7485 cut-off events. For 13028/13096 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 55222 event pairs, 1703 based on Foata normal form. 0/7183 useless extension candidates. Maximal degree in co-relation 22546. Up to 4584 conditions per place. [2024-11-07 23:38:42,410 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 222 selfloop transitions, 11 changer transitions 0/261 dead transitions. [2024-11-07 23:38:42,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 261 transitions, 2536 flow [2024-11-07 23:38:42,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:42,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 220 transitions. [2024-11-07 23:38:42,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2024-11-07 23:38:42,411 INFO L175 Difference]: Start difference. First operand has 172 places, 224 transitions, 1912 flow. Second operand 4 states and 220 transitions. [2024-11-07 23:38:42,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 261 transitions, 2536 flow [2024-11-07 23:38:42,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 261 transitions, 2527 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:42,457 INFO L231 Difference]: Finished difference. Result has 176 places, 226 transitions, 1950 flow [2024-11-07 23:38:42,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1950, PETRI_PLACES=176, PETRI_TRANSITIONS=226} [2024-11-07 23:38:42,458 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 99 predicate places. [2024-11-07 23:38:42,458 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 226 transitions, 1950 flow [2024-11-07 23:38:42,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 23:38:42,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:42,458 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:42,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 23:38:42,459 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:42,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:42,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1144951136, now seen corresponding path program 1 times [2024-11-07 23:38:42,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:42,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616940508] [2024-11-07 23:38:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:38:42,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:42,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616940508] [2024-11-07 23:38:42,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616940508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:42,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756961183] [2024-11-07 23:38:42,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:42,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:42,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:42,657 INFO L229 MonitoredProcess]: Starting monitored process 13 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 23:38:42,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 23:38:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:42,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 23:38:42,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-07 23:38:42,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-07 23:38:42,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756961183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:42,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:42,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-07 23:38:42,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383121083] [2024-11-07 23:38:42,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:42,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 23:38:42,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:42,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 23:38:42,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-11-07 23:38:43,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:43,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 226 transitions, 1950 flow. Second operand has 21 states, 21 states have (on average 40.38095238095238) internal successors, (848), 21 states have internal predecessors, (848), 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 23:38:43,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:43,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:43,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:43,832 INFO L124 PetriNetUnfolderBase]: 2571/6325 cut-off events. [2024-11-07 23:38:43,832 INFO L125 PetriNetUnfolderBase]: For 14695/14713 co-relation queries the response was YES. [2024-11-07 23:38:43,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21056 conditions, 6325 events. 2571/6325 cut-off events. For 14695/14713 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 48671 event pairs, 1713 based on Foata normal form. 2/6114 useless extension candidates. Maximal degree in co-relation 20286. Up to 4310 conditions per place. [2024-11-07 23:38:43,872 INFO L140 encePairwiseOnDemand]: 69/81 looper letters, 95 selfloop transitions, 91 changer transitions 0/219 dead transitions. [2024-11-07 23:38:43,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 219 transitions, 2257 flow [2024-11-07 23:38:43,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:38:43,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:38:43,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 605 transitions. [2024-11-07 23:38:43,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5335097001763669 [2024-11-07 23:38:43,875 INFO L175 Difference]: Start difference. First operand has 176 places, 226 transitions, 1950 flow. Second operand 14 states and 605 transitions. [2024-11-07 23:38:43,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 219 transitions, 2257 flow [2024-11-07 23:38:43,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 219 transitions, 2248 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:43,921 INFO L231 Difference]: Finished difference. Result has 188 places, 219 transitions, 2058 flow [2024-11-07 23:38:43,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1854, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2058, PETRI_PLACES=188, PETRI_TRANSITIONS=219} [2024-11-07 23:38:43,922 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 111 predicate places. [2024-11-07 23:38:43,922 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 219 transitions, 2058 flow [2024-11-07 23:38:43,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 40.38095238095238) internal successors, (848), 21 states have internal predecessors, (848), 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 23:38:43,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:43,923 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:43,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 23:38:44,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:44,123 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:44,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:44,123 INFO L85 PathProgramCache]: Analyzing trace with hash 454948001, now seen corresponding path program 1 times [2024-11-07 23:38:44,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:44,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462411257] [2024-11-07 23:38:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:44,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:44,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:44,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462411257] [2024-11-07 23:38:44,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462411257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:44,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299239373] [2024-11-07 23:38:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:44,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:44,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:44,324 INFO L229 MonitoredProcess]: Starting monitored process 14 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 23:38:44,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-07 23:38:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:44,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 23:38:44,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:44,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:44,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299239373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:44,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:44,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-07 23:38:44,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193581867] [2024-11-07 23:38:44,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:44,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 23:38:44,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:44,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 23:38:44,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-07 23:38:44,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:44,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 219 transitions, 2058 flow. Second operand has 28 states, 28 states have (on average 40.25) internal successors, (1127), 28 states have internal predecessors, (1127), 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 23:38:44,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:44,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:44,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:45,736 INFO L124 PetriNetUnfolderBase]: 2788/7193 cut-off events. [2024-11-07 23:38:45,736 INFO L125 PetriNetUnfolderBase]: For 23883/23901 co-relation queries the response was YES. [2024-11-07 23:38:45,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26113 conditions, 7193 events. 2788/7193 cut-off events. For 23883/23901 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 56993 event pairs, 1713 based on Foata normal form. 203/7183 useless extension candidates. Maximal degree in co-relation 24994. Up to 4462 conditions per place. [2024-11-07 23:38:45,768 INFO L140 encePairwiseOnDemand]: 68/81 looper letters, 79 selfloop transitions, 219 changer transitions 0/331 dead transitions. [2024-11-07 23:38:45,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 331 transitions, 4054 flow [2024-11-07 23:38:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 23:38:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-07 23:38:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1173 transitions. [2024-11-07 23:38:45,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5569800569800569 [2024-11-07 23:38:45,770 INFO L175 Difference]: Start difference. First operand has 188 places, 219 transitions, 2058 flow. Second operand 26 states and 1173 transitions. [2024-11-07 23:38:45,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 331 transitions, 4054 flow [2024-11-07 23:38:45,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 331 transitions, 3894 flow, removed 3 selfloop flow, removed 10 redundant places. [2024-11-07 23:38:45,830 INFO L231 Difference]: Finished difference. Result has 210 places, 331 transitions, 3850 flow [2024-11-07 23:38:45,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1968, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=3850, PETRI_PLACES=210, PETRI_TRANSITIONS=331} [2024-11-07 23:38:45,831 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 133 predicate places. [2024-11-07 23:38:45,831 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 331 transitions, 3850 flow [2024-11-07 23:38:45,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 40.25) internal successors, (1127), 28 states have internal predecessors, (1127), 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 23:38:45,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:45,831 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] [2024-11-07 23:38:45,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 23:38:46,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:46,032 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:46,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:46,032 INFO L85 PathProgramCache]: Analyzing trace with hash -159058206, now seen corresponding path program 1 times [2024-11-07 23:38:46,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:46,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801475869] [2024-11-07 23:38:46,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:46,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:46,090 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 23:38:46,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:46,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801475869] [2024-11-07 23:38:46,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801475869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:46,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:46,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:46,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9550442] [2024-11-07 23:38:46,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:46,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:46,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:46,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2024-11-07 23:38:46,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 331 transitions, 3850 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 23:38:46,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:46,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2024-11-07 23:38:46,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:46,979 INFO L124 PetriNetUnfolderBase]: 3058/7568 cut-off events. [2024-11-07 23:38:46,979 INFO L125 PetriNetUnfolderBase]: For 22362/22408 co-relation queries the response was YES. [2024-11-07 23:38:47,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28582 conditions, 7568 events. 3058/7568 cut-off events. For 22362/22408 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 58936 event pairs, 1479 based on Foata normal form. 186/7735 useless extension candidates. Maximal degree in co-relation 27417. Up to 4749 conditions per place. [2024-11-07 23:38:47,026 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 322 selfloop transitions, 10 changer transitions 0/365 dead transitions. [2024-11-07 23:38:47,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 365 transitions, 4662 flow [2024-11-07 23:38:47,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 227 transitions. [2024-11-07 23:38:47,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7006172839506173 [2024-11-07 23:38:47,028 INFO L175 Difference]: Start difference. First operand has 210 places, 331 transitions, 3850 flow. Second operand 4 states and 227 transitions. [2024-11-07 23:38:47,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 365 transitions, 4662 flow [2024-11-07 23:38:47,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 365 transitions, 3975 flow, removed 226 selfloop flow, removed 12 redundant places. [2024-11-07 23:38:47,113 INFO L231 Difference]: Finished difference. Result has 203 places, 332 transitions, 3202 flow [2024-11-07 23:38:47,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=3163, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3202, PETRI_PLACES=203, PETRI_TRANSITIONS=332} [2024-11-07 23:38:47,114 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 126 predicate places. [2024-11-07 23:38:47,114 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 332 transitions, 3202 flow [2024-11-07 23:38:47,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 23:38:47,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:47,114 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:47,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 23:38:47,114 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:47,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash 450201837, now seen corresponding path program 1 times [2024-11-07 23:38:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:47,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942080255] [2024-11-07 23:38:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:47,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 23:38:47,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:47,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942080255] [2024-11-07 23:38:47,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942080255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:47,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756988082] [2024-11-07 23:38:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:47,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:47,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:47,198 INFO L229 MonitoredProcess]: Starting monitored process 15 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 23:38:47,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-07 23:38:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:47,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:47,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 23:38:47,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 23:38:47,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756988082] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:47,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:47,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:38:47,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649693576] [2024-11-07 23:38:47,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:47,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:38:47,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:47,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:38:47,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:38:47,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2024-11-07 23:38:47,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 332 transitions, 3202 flow. Second operand has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 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 23:38:47,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:47,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2024-11-07 23:38:47,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:48,869 INFO L124 PetriNetUnfolderBase]: 4228/9336 cut-off events. [2024-11-07 23:38:48,869 INFO L125 PetriNetUnfolderBase]: For 30017/30057 co-relation queries the response was YES. [2024-11-07 23:38:48,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33879 conditions, 9336 events. 4228/9336 cut-off events. For 30017/30057 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 70285 event pairs, 833 based on Foata normal form. 306/9605 useless extension candidates. Maximal degree in co-relation 32417. Up to 4259 conditions per place. [2024-11-07 23:38:48,913 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 527 selfloop transitions, 20 changer transitions 0/581 dead transitions. [2024-11-07 23:38:48,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 581 transitions, 6476 flow [2024-11-07 23:38:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:38:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:38:48,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 569 transitions. [2024-11-07 23:38:48,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7024691358024692 [2024-11-07 23:38:48,914 INFO L175 Difference]: Start difference. First operand has 203 places, 332 transitions, 3202 flow. Second operand 10 states and 569 transitions. [2024-11-07 23:38:48,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 581 transitions, 6476 flow [2024-11-07 23:38:48,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 581 transitions, 6374 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:38:48,989 INFO L231 Difference]: Finished difference. Result has 212 places, 341 transitions, 3282 flow [2024-11-07 23:38:48,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=3188, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3282, PETRI_PLACES=212, PETRI_TRANSITIONS=341} [2024-11-07 23:38:48,989 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 135 predicate places. [2024-11-07 23:38:48,989 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 341 transitions, 3282 flow [2024-11-07 23:38:48,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 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 23:38:48,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:48,990 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] [2024-11-07 23:38:49,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 23:38:49,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-07 23:38:49,190 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:49,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:49,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2050307041, now seen corresponding path program 1 times [2024-11-07 23:38:49,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343346480] [2024-11-07 23:38:49,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:49,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:49,276 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 23:38:49,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343346480] [2024-11-07 23:38:49,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343346480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:49,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:49,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:38:49,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210215629] [2024-11-07 23:38:49,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:49,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:49,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:49,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:49,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:38:49,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 81 [2024-11-07 23:38:49,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 341 transitions, 3282 flow. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 23:38:49,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:49,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 81 [2024-11-07 23:38:49,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:50,811 INFO L124 PetriNetUnfolderBase]: 4170/9957 cut-off events. [2024-11-07 23:38:50,811 INFO L125 PetriNetUnfolderBase]: For 27347/27418 co-relation queries the response was YES. [2024-11-07 23:38:50,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37015 conditions, 9957 events. 4170/9957 cut-off events. For 27347/27418 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 80869 event pairs, 1515 based on Foata normal form. 180/10106 useless extension candidates. Maximal degree in co-relation 35550. Up to 4395 conditions per place. [2024-11-07 23:38:50,876 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 413 selfloop transitions, 7 changer transitions 11/461 dead transitions. [2024-11-07 23:38:50,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 461 transitions, 5193 flow [2024-11-07 23:38:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 268 transitions. [2024-11-07 23:38:50,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6617283950617284 [2024-11-07 23:38:50,877 INFO L175 Difference]: Start difference. First operand has 212 places, 341 transitions, 3282 flow. Second operand 5 states and 268 transitions. [2024-11-07 23:38:50,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 461 transitions, 5193 flow [2024-11-07 23:38:51,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 461 transitions, 5146 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:51,019 INFO L231 Difference]: Finished difference. Result has 214 places, 339 transitions, 3264 flow [2024-11-07 23:38:51,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=3250, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3264, PETRI_PLACES=214, PETRI_TRANSITIONS=339} [2024-11-07 23:38:51,020 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 137 predicate places. [2024-11-07 23:38:51,020 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 339 transitions, 3264 flow [2024-11-07 23:38:51,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 23:38:51,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:51,020 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:51,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 23:38:51,021 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:51,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:51,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1284501350, now seen corresponding path program 2 times [2024-11-07 23:38:51,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444835186] [2024-11-07 23:38:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:51,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:51,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:51,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444835186] [2024-11-07 23:38:51,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444835186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:51,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754255966] [2024-11-07 23:38:51,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:38:51,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:51,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:51,197 INFO L229 MonitoredProcess]: Starting monitored process 16 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 23:38:51,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-07 23:38:51,316 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:38:51,317 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:38:51,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:38:51,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:51,362 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-07 23:38:51,362 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-07 23:38:51,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754255966] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:51,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:51,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2024-11-07 23:38:51,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348844160] [2024-11-07 23:38:51,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:51,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 23:38:51,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:51,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 23:38:51,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-07 23:38:51,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 81 [2024-11-07 23:38:51,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 339 transitions, 3264 flow. Second operand has 15 states, 15 states have (on average 43.2) internal successors, (648), 15 states have internal predecessors, (648), 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 23:38:51,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:51,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 81 [2024-11-07 23:38:51,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:52,601 INFO L124 PetriNetUnfolderBase]: 3984/9571 cut-off events. [2024-11-07 23:38:52,601 INFO L125 PetriNetUnfolderBase]: For 29593/29601 co-relation queries the response was YES. [2024-11-07 23:38:52,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36384 conditions, 9571 events. 3984/9571 cut-off events. For 29593/29601 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 76466 event pairs, 2541 based on Foata normal form. 12/9486 useless extension candidates. Maximal degree in co-relation 34730. Up to 5803 conditions per place. [2024-11-07 23:38:52,675 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 483 selfloop transitions, 138 changer transitions 0/655 dead transitions. [2024-11-07 23:38:52,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 655 transitions, 8122 flow [2024-11-07 23:38:52,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 23:38:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 23:38:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 684 transitions. [2024-11-07 23:38:52,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.562962962962963 [2024-11-07 23:38:52,676 INFO L175 Difference]: Start difference. First operand has 214 places, 339 transitions, 3264 flow. Second operand 15 states and 684 transitions. [2024-11-07 23:38:52,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 655 transitions, 8122 flow [2024-11-07 23:38:52,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 655 transitions, 8036 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-11-07 23:38:52,785 INFO L231 Difference]: Finished difference. Result has 220 places, 361 transitions, 3741 flow [2024-11-07 23:38:52,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=3170, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3741, PETRI_PLACES=220, PETRI_TRANSITIONS=361} [2024-11-07 23:38:52,786 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 143 predicate places. [2024-11-07 23:38:52,786 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 361 transitions, 3741 flow [2024-11-07 23:38:52,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 43.2) internal successors, (648), 15 states have internal predecessors, (648), 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 23:38:52,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:52,787 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:52,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-07 23:38:52,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-07 23:38:52,987 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:52,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1487302528, now seen corresponding path program 1 times [2024-11-07 23:38:52,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:52,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384305114] [2024-11-07 23:38:52,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:52,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 23:38:53,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:53,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384305114] [2024-11-07 23:38:53,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384305114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689196520] [2024-11-07 23:38:53,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:53,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:53,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:53,061 INFO L229 MonitoredProcess]: Starting monitored process 17 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 23:38:53,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-07 23:38:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:53,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:53,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 23:38:53,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 23:38:53,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689196520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:53,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:53,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:38:53,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741917227] [2024-11-07 23:38:53,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:53,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:38:53,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:53,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:38:53,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:38:53,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 81 [2024-11-07 23:38:53,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 361 transitions, 3741 flow. Second operand has 12 states, 12 states have (on average 43.583333333333336) internal successors, (523), 12 states have internal predecessors, (523), 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 23:38:53,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:53,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 81 [2024-11-07 23:38:53,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:55,536 INFO L124 PetriNetUnfolderBase]: 8019/17857 cut-off events. [2024-11-07 23:38:55,537 INFO L125 PetriNetUnfolderBase]: For 42191/42339 co-relation queries the response was YES. [2024-11-07 23:38:55,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64277 conditions, 17857 events. 8019/17857 cut-off events. For 42191/42339 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 150379 event pairs, 1476 based on Foata normal form. 258/18096 useless extension candidates. Maximal degree in co-relation 62651. Up to 5182 conditions per place. [2024-11-07 23:38:55,654 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 555 selfloop transitions, 28 changer transitions 0/613 dead transitions. [2024-11-07 23:38:55,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 613 transitions, 6464 flow [2024-11-07 23:38:55,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:38:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:38:55,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 533 transitions. [2024-11-07 23:38:55,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6580246913580247 [2024-11-07 23:38:55,656 INFO L175 Difference]: Start difference. First operand has 220 places, 361 transitions, 3741 flow. Second operand 10 states and 533 transitions. [2024-11-07 23:38:55,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 613 transitions, 6464 flow [2024-11-07 23:38:55,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 613 transitions, 6100 flow, removed 42 selfloop flow, removed 11 redundant places. [2024-11-07 23:38:55,836 INFO L231 Difference]: Finished difference. Result has 221 places, 376 transitions, 3623 flow [2024-11-07 23:38:55,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=3377, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3623, PETRI_PLACES=221, PETRI_TRANSITIONS=376} [2024-11-07 23:38:55,837 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 144 predicate places. [2024-11-07 23:38:55,837 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 376 transitions, 3623 flow [2024-11-07 23:38:55,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 43.583333333333336) internal successors, (523), 12 states have internal predecessors, (523), 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 23:38:55,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:55,838 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 23:38:55,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-07 23:38:56,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:56,038 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:56,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1330563944, now seen corresponding path program 1 times [2024-11-07 23:38:56,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:56,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357198940] [2024-11-07 23:38:56,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:56,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:56,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:56,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357198940] [2024-11-07 23:38:56,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357198940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:56,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775104147] [2024-11-07 23:38:56,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:56,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:56,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:56,114 INFO L229 MonitoredProcess]: Starting monitored process 18 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 23:38:56,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-07 23:38:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:56,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:38:56,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:56,283 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:56,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775104147] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:56,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 23:38:56,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2024-11-07 23:38:56,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091242648] [2024-11-07 23:38:56,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:56,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:38:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:38:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:38:56,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 81 [2024-11-07 23:38:56,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 376 transitions, 3623 flow. Second operand has 5 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 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 23:38:56,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:56,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 81 [2024-11-07 23:38:56,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:58,868 INFO L124 PetriNetUnfolderBase]: 6756/16990 cut-off events. [2024-11-07 23:38:58,869 INFO L125 PetriNetUnfolderBase]: For 51333/51399 co-relation queries the response was YES. [2024-11-07 23:38:58,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60892 conditions, 16990 events. 6756/16990 cut-off events. For 51333/51399 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 143837 event pairs, 2820 based on Foata normal form. 301/17267 useless extension candidates. Maximal degree in co-relation 59202. Up to 4772 conditions per place. [2024-11-07 23:38:58,997 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 405 selfloop transitions, 26 changer transitions 1/466 dead transitions. [2024-11-07 23:38:58,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 466 transitions, 5111 flow [2024-11-07 23:38:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:38:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:38:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2024-11-07 23:38:58,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-11-07 23:38:58,998 INFO L175 Difference]: Start difference. First operand has 221 places, 376 transitions, 3623 flow. Second operand 5 states and 288 transitions. [2024-11-07 23:38:58,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 466 transitions, 5111 flow [2024-11-07 23:38:59,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 466 transitions, 5081 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:59,174 INFO L231 Difference]: Finished difference. Result has 227 places, 387 transitions, 3880 flow [2024-11-07 23:38:59,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=3504, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3880, PETRI_PLACES=227, PETRI_TRANSITIONS=387} [2024-11-07 23:38:59,175 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 150 predicate places. [2024-11-07 23:38:59,175 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 387 transitions, 3880 flow [2024-11-07 23:38:59,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 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 23:38:59,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:59,175 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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, 1, 1, 1, 1] [2024-11-07 23:38:59,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-07 23:38:59,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:59,376 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:38:59,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash -158211297, now seen corresponding path program 1 times [2024-11-07 23:38:59,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:59,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711779347] [2024-11-07 23:38:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:59,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:38:59,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:59,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711779347] [2024-11-07 23:38:59,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711779347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:59,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538731842] [2024-11-07 23:38:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:59,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:59,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:59,487 INFO L229 MonitoredProcess]: Starting monitored process 19 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 23:38:59,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-07 23:38:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:59,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:38:59,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:59,769 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:59,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:59,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538731842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:59,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:59,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-07 23:38:59,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729392049] [2024-11-07 23:38:59,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:59,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:38:59,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:59,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:38:59,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:39:00,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 81 [2024-11-07 23:39:00,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 387 transitions, 3880 flow. Second operand has 19 states, 19 states have (on average 33.89473684210526) internal successors, (644), 19 states have internal predecessors, (644), 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 23:39:00,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:00,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 81 [2024-11-07 23:39:00,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:39:06,515 INFO L124 PetriNetUnfolderBase]: 19738/36762 cut-off events. [2024-11-07 23:39:06,515 INFO L125 PetriNetUnfolderBase]: For 105793/106177 co-relation queries the response was YES. [2024-11-07 23:39:06,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136535 conditions, 36762 events. 19738/36762 cut-off events. For 105793/106177 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 274556 event pairs, 6285 based on Foata normal form. 516/37236 useless extension candidates. Maximal degree in co-relation 134869. Up to 9791 conditions per place. [2024-11-07 23:39:06,838 INFO L140 encePairwiseOnDemand]: 64/81 looper letters, 611 selfloop transitions, 221 changer transitions 0/854 dead transitions. [2024-11-07 23:39:06,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 854 transitions, 8892 flow [2024-11-07 23:39:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 23:39:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-07 23:39:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 788 transitions. [2024-11-07 23:39:06,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48641975308641977 [2024-11-07 23:39:06,840 INFO L175 Difference]: Start difference. First operand has 227 places, 387 transitions, 3880 flow. Second operand 20 states and 788 transitions. [2024-11-07 23:39:06,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 854 transitions, 8892 flow [2024-11-07 23:39:07,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 854 transitions, 8883 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:39:07,221 INFO L231 Difference]: Finished difference. Result has 251 places, 479 transitions, 5717 flow [2024-11-07 23:39:07,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=3875, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5717, PETRI_PLACES=251, PETRI_TRANSITIONS=479} [2024-11-07 23:39:07,221 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 174 predicate places. [2024-11-07 23:39:07,221 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 479 transitions, 5717 flow [2024-11-07 23:39:07,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 33.89473684210526) internal successors, (644), 19 states have internal predecessors, (644), 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 23:39:07,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:07,222 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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 23:39:07,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-07 23:39:07,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:39:07,422 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2024-11-07 23:39:07,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:07,423 INFO L85 PathProgramCache]: Analyzing trace with hash 503291331, now seen corresponding path program 1 times [2024-11-07 23:39:07,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:07,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973937636] [2024-11-07 23:39:07,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:07,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 23:39:07,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963031340] [2024-11-07 23:39:07,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:07,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:39:07,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:39:07,449 INFO L229 MonitoredProcess]: Starting monitored process 20 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 23:39:07,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-07 23:39:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:07,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:39:07,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:39:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 23:39:07,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:39:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 23:39:17,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:17,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973937636] [2024-11-07 23:39:17,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 23:39:17,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963031340] [2024-11-07 23:39:17,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963031340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:39:17,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 23:39:17,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-07 23:39:17,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539360891] [2024-11-07 23:39:17,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 23:39:17,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 23:39:17,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 23:39:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=44, Unknown=3, NotChecked=0, Total=72 [2024-11-07 23:39:21,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-07 23:39:25,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-07 23:39:28,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-07 23:39:32,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]