./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-min-max-1.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/parallel-min-max-1.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', 'bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35'] 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/parallel-min-max-1.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 bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:38:17,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:38:17,778 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:38:17,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:38:17,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:38:17,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:38:17,804 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:38:17,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:38:17,805 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:38:17,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:38:17,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:38:17,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:38:17,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:38:17,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:38:17,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:38:17,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:38:17,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:38:17,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:38:17,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:38:17,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:38:17,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:38:17,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:38:17,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:38:17,807 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 -> bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 [2024-11-07 23:38:18,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:38:18,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:38:18,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:38:18,043 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:38:18,044 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:38:18,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-11-07 23:38:19,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:38:19,314 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:38:19,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-11-07 23:38:19,320 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5510f0d33/beaab1c6c4604cafb1974e31ccee803e/FLAGea7ea663b [2024-11-07 23:38:19,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5510f0d33/beaab1c6c4604cafb1974e31ccee803e [2024-11-07 23:38:19,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:38:19,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:38:19,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:38:19,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:38:19,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:38:19,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23639432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19, skipping insertion in model container [2024-11-07 23:38:19,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:38:19,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:38:19,475 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:38:19,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:38:19,510 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:38:19,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19 WrapperNode [2024-11-07 23:38:19,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:38:19,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:38:19,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:38:19,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:38:19,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,538 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 124 [2024-11-07 23:38:19,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:38:19,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:38:19,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:38:19,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:38:19,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,557 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-07 23:38:19,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:38:19,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:38:19,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:38:19,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:38:19,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (1/1) ... [2024-11-07 23:38:19,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:38:19,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:19,598 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 23:38:19,601 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 23:38:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:38:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:38:19,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:38:19,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:38:19,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:38:19,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:38:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:38:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:38:19,620 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 23:38:19,697 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:38:19,699 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:38:19,940 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:38:19,940 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:38:20,081 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:38:20,081 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 23:38:20,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:38:20 BoogieIcfgContainer [2024-11-07 23:38:20,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:38:20,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:38:20,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:38:20,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:38:20,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:38:19" (1/3) ... [2024-11-07 23:38:20,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ba6d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:38:20, skipping insertion in model container [2024-11-07 23:38:20,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:38:19" (2/3) ... [2024-11-07 23:38:20,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ba6d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:38:20, skipping insertion in model container [2024-11-07 23:38:20,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:38:20" (3/3) ... [2024-11-07 23:38:20,087 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2024-11-07 23:38:20,096 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:38:20,096 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-07 23:38:20,096 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:38:20,141 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:38:20,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 65 transitions, 151 flow [2024-11-07 23:38:20,205 INFO L124 PetriNetUnfolderBase]: 5/62 cut-off events. [2024-11-07 23:38:20,207 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:38:20,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 62 events. 5/62 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 106 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-07 23:38:20,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 65 transitions, 151 flow [2024-11-07 23:38:20,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 59 transitions, 130 flow [2024-11-07 23:38:20,222 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:38:20,232 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;@7f9db869, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:38:20,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-07 23:38:20,241 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:38:20,241 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-07 23:38:20,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:38:20,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:20,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:20,242 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:20,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2081239604, now seen corresponding path program 1 times [2024-11-07 23:38:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:20,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31858564] [2024-11-07 23:38:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:20,495 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 23:38:20,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:20,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31858564] [2024-11-07 23:38:20,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31858564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:20,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:20,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:20,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376650138] [2024-11-07 23:38:20,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:20,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:20,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:20,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:20,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:20,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-07 23:38:20,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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 23:38:20,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:20,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-07 23:38:20,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:20,793 INFO L124 PetriNetUnfolderBase]: 767/1429 cut-off events. [2024-11-07 23:38:20,794 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-07 23:38:20,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 1429 events. 767/1429 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8532 event pairs, 526 based on Foata normal form. 1/1029 useless extension candidates. Maximal degree in co-relation 2456. Up to 1028 conditions per place. [2024-11-07 23:38:20,807 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 31 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-11-07 23:38:20,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 206 flow [2024-11-07 23:38:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-11-07 23:38:20,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6038461538461538 [2024-11-07 23:38:20,821 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 130 flow. Second operand 4 states and 157 transitions. [2024-11-07 23:38:20,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 206 flow [2024-11-07 23:38:20,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:38:20,831 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 153 flow [2024-11-07 23:38:20,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2024-11-07 23:38:20,836 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2024-11-07 23:38:20,837 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 153 flow [2024-11-07 23:38:20,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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 23:38:20,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:20,837 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:20,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:38:20,838 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:20,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:20,839 INFO L85 PathProgramCache]: Analyzing trace with hash 61605412, now seen corresponding path program 1 times [2024-11-07 23:38:20,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:20,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999933046] [2024-11-07 23:38:20,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:20,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:20,980 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 23:38:20,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:20,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999933046] [2024-11-07 23:38:20,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999933046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:20,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321363031] [2024-11-07 23:38:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:20,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:20,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:20,984 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 23:38:20,985 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 23:38:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:21,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:21,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:21,099 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 23:38:21,099 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:38:21,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321363031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:21,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:38:21,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:38:21,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685101643] [2024-11-07 23:38:21,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:21,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:38:21,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:21,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:38:21,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:38:21,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-07 23:38:21,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 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 23:38:21,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:21,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-07 23:38:21,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:21,309 INFO L124 PetriNetUnfolderBase]: 767/1428 cut-off events. [2024-11-07 23:38:21,309 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 23:38:21,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 1428 events. 767/1428 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8492 event pairs, 526 based on Foata normal form. 1/1029 useless extension candidates. Maximal degree in co-relation 2558. Up to 1023 conditions per place. [2024-11-07 23:38:21,320 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 27 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2024-11-07 23:38:21,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 217 flow [2024-11-07 23:38:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:38:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:38:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 215 transitions. [2024-11-07 23:38:21,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-07 23:38:21,322 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 153 flow. Second operand 6 states and 215 transitions. [2024-11-07 23:38:21,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 217 flow [2024-11-07 23:38:21,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:21,324 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 160 flow [2024-11-07 23:38:21,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-11-07 23:38:21,324 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2024-11-07 23:38:21,325 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 160 flow [2024-11-07 23:38:21,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 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 23:38:21,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:21,326 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:21,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:21,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:21,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:21,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1909768223, now seen corresponding path program 1 times [2024-11-07 23:38:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:21,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100099460] [2024-11-07 23:38:21,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:21,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:21,618 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 23:38:21,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:21,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100099460] [2024-11-07 23:38:21,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100099460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:21,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944065293] [2024-11-07 23:38:21,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:21,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:21,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:21,621 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 23:38:21,622 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 23:38:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:21,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:21,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:21,712 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 23:38:21,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:21,750 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 23:38:21,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944065293] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:21,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:21,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:38:21,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166117340] [2024-11-07 23:38:21,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:21,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:38:21,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:38:21,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:38:21,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-07 23:38:21,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 160 flow. Second operand has 12 states, 12 states have (on average 31.583333333333332) internal successors, (379), 12 states have internal predecessors, (379), 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 23:38:21,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:21,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-07 23:38:21,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:21,982 INFO L124 PetriNetUnfolderBase]: 770/1440 cut-off events. [2024-11-07 23:38:21,983 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-07 23:38:21,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2629 conditions, 1440 events. 770/1440 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8628 event pairs, 526 based on Foata normal form. 3/1041 useless extension candidates. Maximal degree in co-relation 2559. Up to 1030 conditions per place. [2024-11-07 23:38:21,991 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 30 selfloop transitions, 13 changer transitions 0/70 dead transitions. [2024-11-07 23:38:21,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 300 flow [2024-11-07 23:38:21,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:38:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:38:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 346 transitions. [2024-11-07 23:38:21,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5323076923076923 [2024-11-07 23:38:21,993 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 160 flow. Second operand 10 states and 346 transitions. [2024-11-07 23:38:21,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 300 flow [2024-11-07 23:38:21,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 254 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-07 23:38:21,995 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 212 flow [2024-11-07 23:38:21,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=212, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2024-11-07 23:38:21,995 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 11 predicate places. [2024-11-07 23:38:21,995 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 212 flow [2024-11-07 23:38:21,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.583333333333332) internal successors, (379), 12 states have internal predecessors, (379), 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 23:38:21,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:21,996 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] [2024-11-07 23:38:22,008 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 23:38:22,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:22,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:22,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1897721702, now seen corresponding path program 1 times [2024-11-07 23:38:22,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:22,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660981713] [2024-11-07 23:38:22,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:22,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:22,281 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 23:38:22,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:22,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660981713] [2024-11-07 23:38:22,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660981713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:22,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:22,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060825274] [2024-11-07 23:38:22,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:22,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:22,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:22,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:22,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-07 23:38:22,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 23:38:22,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:22,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-07 23:38:22,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:22,532 INFO L124 PetriNetUnfolderBase]: 1553/2487 cut-off events. [2024-11-07 23:38:22,532 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-07 23:38:22,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4896 conditions, 2487 events. 1553/2487 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 13633 event pairs, 771 based on Foata normal form. 44/1950 useless extension candidates. Maximal degree in co-relation 4862. Up to 1450 conditions per place. [2024-11-07 23:38:22,546 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 72 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-11-07 23:38:22,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 100 transitions, 432 flow [2024-11-07 23:38:22,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:22,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 178 transitions. [2024-11-07 23:38:22,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6846153846153846 [2024-11-07 23:38:22,559 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 212 flow. Second operand 4 states and 178 transitions. [2024-11-07 23:38:22,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 100 transitions, 432 flow [2024-11-07 23:38:22,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 100 transitions, 421 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:22,564 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 230 flow [2024-11-07 23:38:22,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-07 23:38:22,565 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 14 predicate places. [2024-11-07 23:38:22,565 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 230 flow [2024-11-07 23:38:22,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 23:38:22,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:22,565 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 23:38:22,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:38:22,566 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:22,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2049891446, now seen corresponding path program 1 times [2024-11-07 23:38:22,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:22,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669319286] [2024-11-07 23:38:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:22,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:22,635 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 23:38:22,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:22,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669319286] [2024-11-07 23:38:22,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669319286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:22,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:22,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:38:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967588343] [2024-11-07 23:38:22,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:22,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:22,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:22,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-07 23:38:22,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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 23:38:22,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:22,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-07 23:38:22,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:22,949 INFO L124 PetriNetUnfolderBase]: 2201/3508 cut-off events. [2024-11-07 23:38:22,951 INFO L125 PetriNetUnfolderBase]: For 407/660 co-relation queries the response was YES. [2024-11-07 23:38:22,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7542 conditions, 3508 events. 2201/3508 cut-off events. For 407/660 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 19647 event pairs, 1127 based on Foata normal form. 207/3150 useless extension candidates. Maximal degree in co-relation 7506. Up to 2038 conditions per place. [2024-11-07 23:38:22,971 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 76 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-07 23:38:22,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 105 transitions, 480 flow [2024-11-07 23:38:22,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:22,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-11-07 23:38:22,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.676923076923077 [2024-11-07 23:38:22,973 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 230 flow. Second operand 4 states and 176 transitions. [2024-11-07 23:38:22,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 105 transitions, 480 flow [2024-11-07 23:38:22,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 473 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:38:22,977 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 256 flow [2024-11-07 23:38:22,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-11-07 23:38:22,978 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 18 predicate places. [2024-11-07 23:38:22,978 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 256 flow [2024-11-07 23:38:22,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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 23:38:22,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:22,979 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:22,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:38:22,979 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:22,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash 446341647, now seen corresponding path program 2 times [2024-11-07 23:38:22,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:22,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238325279] [2024-11-07 23:38:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:22,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:23,178 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 23:38:23,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:23,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238325279] [2024-11-07 23:38:23,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238325279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:23,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143061456] [2024-11-07 23:38:23,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:38:23,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:23,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:23,181 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 23:38:23,184 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 23:38:23,238 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:38:23,238 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:38:23,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 23:38:23,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:23,297 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 23:38:23,297 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:23,347 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 23:38:23,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143061456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:23,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:23,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2024-11-07 23:38:23,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350636458] [2024-11-07 23:38:23,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:23,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 23:38:23,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:23,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 23:38:23,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-07 23:38:23,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-07 23:38:23,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 256 flow. Second operand has 16 states, 16 states have (on average 30.75) internal successors, (492), 16 states have internal predecessors, (492), 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 23:38:23,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:23,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-07 23:38:23,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:23,764 INFO L124 PetriNetUnfolderBase]: 1553/2792 cut-off events. [2024-11-07 23:38:23,765 INFO L125 PetriNetUnfolderBase]: For 523/687 co-relation queries the response was YES. [2024-11-07 23:38:23,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6150 conditions, 2792 events. 1553/2792 cut-off events. For 523/687 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17281 event pairs, 1127 based on Foata normal form. 118/2546 useless extension candidates. Maximal degree in co-relation 6105. Up to 2026 conditions per place. [2024-11-07 23:38:23,780 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 28 selfloop transitions, 22 changer transitions 0/78 dead transitions. [2024-11-07 23:38:23,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 78 transitions, 362 flow [2024-11-07 23:38:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 23:38:23,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 23:38:23,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 512 transitions. [2024-11-07 23:38:23,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49230769230769234 [2024-11-07 23:38:23,783 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 256 flow. Second operand 16 states and 512 transitions. [2024-11-07 23:38:23,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 78 transitions, 362 flow [2024-11-07 23:38:23,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 78 transitions, 347 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-07 23:38:23,788 INFO L231 Difference]: Finished difference. Result has 91 places, 78 transitions, 291 flow [2024-11-07 23:38:23,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=291, PETRI_PLACES=91, PETRI_TRANSITIONS=78} [2024-11-07 23:38:23,789 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 27 predicate places. [2024-11-07 23:38:23,789 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 78 transitions, 291 flow [2024-11-07 23:38:23,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 30.75) internal successors, (492), 16 states have internal predecessors, (492), 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 23:38:23,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:23,790 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] [2024-11-07 23:38:23,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 23:38:23,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:23,991 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:23,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:23,992 INFO L85 PathProgramCache]: Analyzing trace with hash -2118417346, now seen corresponding path program 1 times [2024-11-07 23:38:23,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:23,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267240559] [2024-11-07 23:38:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:23,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:38:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267240559] [2024-11-07 23:38:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267240559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:38:24,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:38:24,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:38:24,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047778056] [2024-11-07 23:38:24,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:38:24,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:38:24,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:24,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:38:24,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:38:24,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 65 [2024-11-07 23:38:24,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 78 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:24,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:24,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 65 [2024-11-07 23:38:24,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:24,276 INFO L124 PetriNetUnfolderBase]: 1552/2791 cut-off events. [2024-11-07 23:38:24,276 INFO L125 PetriNetUnfolderBase]: For 513/677 co-relation queries the response was YES. [2024-11-07 23:38:24,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6034 conditions, 2791 events. 1552/2791 cut-off events. For 513/677 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17236 event pairs, 1127 based on Foata normal form. 116/2540 useless extension candidates. Maximal degree in co-relation 5922. Up to 2034 conditions per place. [2024-11-07 23:38:24,290 INFO L140 encePairwiseOnDemand]: 61/65 looper letters, 46 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2024-11-07 23:38:24,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 77 transitions, 384 flow [2024-11-07 23:38:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:38:24,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:38:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-11-07 23:38:24,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2024-11-07 23:38:24,292 INFO L175 Difference]: Start difference. First operand has 91 places, 78 transitions, 291 flow. Second operand 4 states and 158 transitions. [2024-11-07 23:38:24,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 77 transitions, 384 flow [2024-11-07 23:38:24,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 310 flow, removed 6 selfloop flow, removed 14 redundant places. [2024-11-07 23:38:24,296 INFO L231 Difference]: Finished difference. Result has 80 places, 77 transitions, 218 flow [2024-11-07 23:38:24,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=80, PETRI_TRANSITIONS=77} [2024-11-07 23:38:24,298 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 16 predicate places. [2024-11-07 23:38:24,300 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 77 transitions, 218 flow [2024-11-07 23:38:24,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:24,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:24,301 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] [2024-11-07 23:38:24,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:38:24,301 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:24,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:24,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1931523118, now seen corresponding path program 1 times [2024-11-07 23:38:24,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:24,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743930147] [2024-11-07 23:38:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:24,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:38:24,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:24,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743930147] [2024-11-07 23:38:24,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743930147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:24,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086236368] [2024-11-07 23:38:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:24,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:24,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:24,385 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 23:38:24,386 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 23:38:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:24,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:38:24,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:24,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:24,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086236368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:24,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:24,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-07 23:38:24,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598395701] [2024-11-07 23:38:24,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:24,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:38:24,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:24,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:38:24,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:38:24,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-07 23:38:24,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 218 flow. Second operand has 19 states, 19 states have (on average 27.473684210526315) internal successors, (522), 19 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:38:24,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:24,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-07 23:38:24,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:25,549 INFO L124 PetriNetUnfolderBase]: 3334/5312 cut-off events. [2024-11-07 23:38:25,549 INFO L125 PetriNetUnfolderBase]: For 1008/1429 co-relation queries the response was YES. [2024-11-07 23:38:25,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12083 conditions, 5312 events. 3334/5312 cut-off events. For 1008/1429 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 32192 event pairs, 630 based on Foata normal form. 341/5028 useless extension candidates. Maximal degree in co-relation 12046. Up to 822 conditions per place. [2024-11-07 23:38:25,569 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 148 selfloop transitions, 27 changer transitions 4/202 dead transitions. [2024-11-07 23:38:25,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 202 transitions, 934 flow [2024-11-07 23:38:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:38:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:38:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 504 transitions. [2024-11-07 23:38:25,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5538461538461539 [2024-11-07 23:38:25,571 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 218 flow. Second operand 14 states and 504 transitions. [2024-11-07 23:38:25,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 202 transitions, 934 flow [2024-11-07 23:38:25,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 202 transitions, 928 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:38:25,578 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 288 flow [2024-11-07 23:38:25,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=288, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2024-11-07 23:38:25,578 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 26 predicate places. [2024-11-07 23:38:25,578 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 288 flow [2024-11-07 23:38:25,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 27.473684210526315) internal successors, (522), 19 states have internal predecessors, (522), 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 23:38:25,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:25,579 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, 1] [2024-11-07 23:38:25,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:25,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-07 23:38:25,780 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:25,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1688838905, now seen corresponding path program 1 times [2024-11-07 23:38:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:25,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728186546] [2024-11-07 23:38:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:25,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:38:25,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:25,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728186546] [2024-11-07 23:38:25,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728186546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:25,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105941436] [2024-11-07 23:38:25,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:25,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:25,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:25,851 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 23:38:25,851 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 23:38:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:25,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:38:25,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:26,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:26,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:38:26,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105941436] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:26,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:26,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-07 23:38:26,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372851285] [2024-11-07 23:38:26,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:26,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:38:26,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:38:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:38:26,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-07 23:38:26,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 288 flow. Second operand has 19 states, 19 states have (on average 27.68421052631579) internal successors, (526), 19 states have internal predecessors, (526), 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 23:38:26,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:26,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-07 23:38:26,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:26,840 INFO L124 PetriNetUnfolderBase]: 3150/5100 cut-off events. [2024-11-07 23:38:26,840 INFO L125 PetriNetUnfolderBase]: For 2590/2656 co-relation queries the response was YES. [2024-11-07 23:38:26,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12494 conditions, 5100 events. 3150/5100 cut-off events. For 2590/2656 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 31259 event pairs, 615 based on Foata normal form. 114/4623 useless extension candidates. Maximal degree in co-relation 6988. Up to 902 conditions per place. [2024-11-07 23:38:26,857 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 96 selfloop transitions, 21 changer transitions 57/196 dead transitions. [2024-11-07 23:38:26,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 196 transitions, 1037 flow [2024-11-07 23:38:26,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:38:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:38:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 497 transitions. [2024-11-07 23:38:26,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5461538461538461 [2024-11-07 23:38:26,860 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 288 flow. Second operand 14 states and 497 transitions. [2024-11-07 23:38:26,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 196 transitions, 1037 flow [2024-11-07 23:38:26,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 196 transitions, 960 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-07 23:38:26,866 INFO L231 Difference]: Finished difference. Result has 96 places, 74 transitions, 264 flow [2024-11-07 23:38:26,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=264, PETRI_PLACES=96, PETRI_TRANSITIONS=74} [2024-11-07 23:38:26,867 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 32 predicate places. [2024-11-07 23:38:26,868 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 74 transitions, 264 flow [2024-11-07 23:38:26,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 27.68421052631579) internal successors, (526), 19 states have internal predecessors, (526), 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 23:38:26,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:26,868 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] [2024-11-07 23:38:26,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:27,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:27,072 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:27,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:27,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1264683905, now seen corresponding path program 1 times [2024-11-07 23:38:27,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:27,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763220470] [2024-11-07 23:38:27,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:27,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:38:27,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:27,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763220470] [2024-11-07 23:38:27,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763220470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:27,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756616209] [2024-11-07 23:38:27,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:27,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:27,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:27,152 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 23:38:27,153 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 23:38:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:27,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:27,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:38:27,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:38:27,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756616209] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:27,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:27,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:38:27,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834606620] [2024-11-07 23:38:27,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:27,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:38:27,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:27,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:38:27,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:38:27,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-07 23:38:27,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 74 transitions, 264 flow. Second operand has 12 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 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 23:38:27,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:27,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-07 23:38:27,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:27,930 INFO L124 PetriNetUnfolderBase]: 4695/7363 cut-off events. [2024-11-07 23:38:27,930 INFO L125 PetriNetUnfolderBase]: For 3952/4084 co-relation queries the response was YES. [2024-11-07 23:38:27,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18384 conditions, 7363 events. 4695/7363 cut-off events. For 3952/4084 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 43427 event pairs, 1275 based on Foata normal form. 204/6743 useless extension candidates. Maximal degree in co-relation 12575. Up to 2359 conditions per place. [2024-11-07 23:38:27,964 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 171 selfloop transitions, 13 changer transitions 0/207 dead transitions. [2024-11-07 23:38:27,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 207 transitions, 1106 flow [2024-11-07 23:38:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:38:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:38:27,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 436 transitions. [2024-11-07 23:38:27,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6707692307692308 [2024-11-07 23:38:27,969 INFO L175 Difference]: Start difference. First operand has 96 places, 74 transitions, 264 flow. Second operand 10 states and 436 transitions. [2024-11-07 23:38:27,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 207 transitions, 1106 flow [2024-11-07 23:38:27,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 207 transitions, 959 flow, removed 24 selfloop flow, removed 13 redundant places. [2024-11-07 23:38:27,975 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 283 flow [2024-11-07 23:38:27,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=283, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2024-11-07 23:38:27,975 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 25 predicate places. [2024-11-07 23:38:27,975 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 283 flow [2024-11-07 23:38:27,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 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 23:38:27,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:27,976 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, 1] [2024-11-07 23:38:27,987 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 23:38:28,176 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,SelfDestructingSolverStorable9 [2024-11-07 23:38:28,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:28,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1628947931, now seen corresponding path program 1 times [2024-11-07 23:38:28,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:28,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610011528] [2024-11-07 23:38:28,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:28,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:38:28,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:28,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610011528] [2024-11-07 23:38:28,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610011528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:28,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305012706] [2024-11-07 23:38:28,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:28,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:28,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:28,247 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 23:38:28,248 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 23:38:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:28,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:28,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:38:28,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:38:28,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305012706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:28,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:28,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:38:28,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041929713] [2024-11-07 23:38:28,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:28,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:38:28,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:28,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:38:28,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:38:28,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-07 23:38:28,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 283 flow. Second operand has 12 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 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 23:38:28,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:28,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-07 23:38:28,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:29,244 INFO L124 PetriNetUnfolderBase]: 9832/14797 cut-off events. [2024-11-07 23:38:29,244 INFO L125 PetriNetUnfolderBase]: For 10679/10955 co-relation queries the response was YES. [2024-11-07 23:38:29,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35805 conditions, 14797 events. 9832/14797 cut-off events. For 10679/10955 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 85986 event pairs, 2258 based on Foata normal form. 402/13557 useless extension candidates. Maximal degree in co-relation 30879. Up to 4482 conditions per place. [2024-11-07 23:38:29,312 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 217 selfloop transitions, 13 changer transitions 0/256 dead transitions. [2024-11-07 23:38:29,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 256 transitions, 1510 flow [2024-11-07 23:38:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:38:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:38:29,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 428 transitions. [2024-11-07 23:38:29,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6584615384615384 [2024-11-07 23:38:29,318 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 283 flow. Second operand 10 states and 428 transitions. [2024-11-07 23:38:29,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 256 transitions, 1510 flow [2024-11-07 23:38:29,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 256 transitions, 1435 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-07 23:38:29,333 INFO L231 Difference]: Finished difference. Result has 99 places, 92 transitions, 355 flow [2024-11-07 23:38:29,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=355, PETRI_PLACES=99, PETRI_TRANSITIONS=92} [2024-11-07 23:38:29,333 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 35 predicate places. [2024-11-07 23:38:29,334 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 355 flow [2024-11-07 23:38:29,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 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 23:38:29,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:29,334 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 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 23:38:29,348 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 23:38:29,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:29,535 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:29,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:29,535 INFO L85 PathProgramCache]: Analyzing trace with hash -709383335, now seen corresponding path program 2 times [2024-11-07 23:38:29,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:29,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003260490] [2024-11-07 23:38:29,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:29,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-07 23:38:29,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:29,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003260490] [2024-11-07 23:38:29,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003260490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:29,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783474020] [2024-11-07 23:38:29,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:38:29,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:29,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:29,694 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 23:38:29,695 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 23:38:29,759 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:38:29,759 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:38:29,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:29,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-07 23:38:29,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-07 23:38:29,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783474020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:29,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:29,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2024-11-07 23:38:29,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366999360] [2024-11-07 23:38:29,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:29,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:38:29,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:29,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:38:29,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:38:29,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-07 23:38:29,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 355 flow. Second operand has 14 states, 14 states have (on average 28.142857142857142) internal successors, (394), 14 states have internal predecessors, (394), 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 23:38:29,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:29,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-07 23:38:29,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:31,830 INFO L124 PetriNetUnfolderBase]: 19015/28531 cut-off events. [2024-11-07 23:38:31,830 INFO L125 PetriNetUnfolderBase]: For 25394/25958 co-relation queries the response was YES. [2024-11-07 23:38:31,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72667 conditions, 28531 events. 19015/28531 cut-off events. For 25394/25958 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 186570 event pairs, 2202 based on Foata normal form. 268/25631 useless extension candidates. Maximal degree in co-relation 57091. Up to 6784 conditions per place. [2024-11-07 23:38:31,983 INFO L140 encePairwiseOnDemand]: 51/65 looper letters, 211 selfloop transitions, 42 changer transitions 0/278 dead transitions. [2024-11-07 23:38:31,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 278 transitions, 1698 flow [2024-11-07 23:38:31,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 23:38:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-07 23:38:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 608 transitions. [2024-11-07 23:38:31,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5196581196581197 [2024-11-07 23:38:31,985 INFO L175 Difference]: Start difference. First operand has 99 places, 92 transitions, 355 flow. Second operand 18 states and 608 transitions. [2024-11-07 23:38:31,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 278 transitions, 1698 flow [2024-11-07 23:38:32,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 278 transitions, 1603 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-11-07 23:38:32,073 INFO L231 Difference]: Finished difference. Result has 111 places, 109 transitions, 527 flow [2024-11-07 23:38:32,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=527, PETRI_PLACES=111, PETRI_TRANSITIONS=109} [2024-11-07 23:38:32,073 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 47 predicate places. [2024-11-07 23:38:32,073 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 109 transitions, 527 flow [2024-11-07 23:38:32,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 28.142857142857142) internal successors, (394), 14 states have internal predecessors, (394), 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 23:38:32,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:38:32,074 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 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 23:38:32,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:32,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:32,274 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-07 23:38:32,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:38:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash 267610884, now seen corresponding path program 2 times [2024-11-07 23:38:32,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:38:32,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787946495] [2024-11-07 23:38:32,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:38:32,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:38:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:38:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-07 23:38:32,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:38:32,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787946495] [2024-11-07 23:38:32,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787946495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:38:32,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975164305] [2024-11-07 23:38:32,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:38:32,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:32,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:38:32,412 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 23:38:32,413 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 23:38:32,471 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:38:32,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:38:32,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:38:32,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:38:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-07 23:38:32,550 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:38:32,622 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-07 23:38:32,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975164305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:38:32,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:38:32,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2024-11-07 23:38:32,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689968596] [2024-11-07 23:38:32,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:38:32,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:38:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:38:32,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:38:32,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:38:32,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-07 23:38:32,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 109 transitions, 527 flow. Second operand has 14 states, 14 states have (on average 28.428571428571427) internal successors, (398), 14 states have internal predecessors, (398), 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 23:38:32,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:38:32,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-07 23:38:32,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:38:34,659 INFO L124 PetriNetUnfolderBase]: 19558/29540 cut-off events. [2024-11-07 23:38:34,660 INFO L125 PetriNetUnfolderBase]: For 38270/38725 co-relation queries the response was YES. [2024-11-07 23:38:34,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79922 conditions, 29540 events. 19558/29540 cut-off events. For 38270/38725 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 195558 event pairs, 2379 based on Foata normal form. 443/26767 useless extension candidates. Maximal degree in co-relation 61335. Up to 6800 conditions per place. [2024-11-07 23:38:34,732 INFO L140 encePairwiseOnDemand]: 51/65 looper letters, 0 selfloop transitions, 0 changer transitions 296/296 dead transitions. [2024-11-07 23:38:34,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 296 transitions, 2047 flow [2024-11-07 23:38:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 23:38:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-07 23:38:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 601 transitions. [2024-11-07 23:38:34,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5136752136752136 [2024-11-07 23:38:34,734 INFO L175 Difference]: Start difference. First operand has 111 places, 109 transitions, 527 flow. Second operand 18 states and 601 transitions. [2024-11-07 23:38:34,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 296 transitions, 2047 flow [2024-11-07 23:38:34,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 296 transitions, 2011 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-07 23:38:34,801 INFO L231 Difference]: Finished difference. Result has 115 places, 0 transitions, 0 flow [2024-11-07 23:38:34,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=115, PETRI_TRANSITIONS=0} [2024-11-07 23:38:34,802 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 51 predicate places. [2024-11-07 23:38:34,802 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 0 transitions, 0 flow [2024-11-07 23:38:34,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 28.428571428571427) internal successors, (398), 14 states have internal predecessors, (398), 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 23:38:34,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-07 23:38:34,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-07 23:38:34,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-07 23:38:34,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-07 23:38:34,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-07 23:38:34,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-07 23:38:34,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-07 23:38:35,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:38:35,007 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:38:35,012 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:38:35,012 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:38:35,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:38:35 BasicIcfg [2024-11-07 23:38:35,016 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:38:35,017 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:38:35,017 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:38:35,017 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:38:35,017 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:38:20" (3/4) ... [2024-11-07 23:38:35,019 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:38:35,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 23:38:35,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 23:38:35,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-07 23:38:35,024 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 106 nodes and edges [2024-11-07 23:38:35,025 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-07 23:38:35,025 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-07 23:38:35,025 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:38:35,076 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:38:35,077 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:38:35,077 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:38:35,077 INFO L158 Benchmark]: Toolchain (without parser) took 15736.61ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 77.0MB in the beginning and 595.6MB in the end (delta: -518.5MB). Peak memory consumption was 533.4MB. Max. memory is 16.1GB. [2024-11-07 23:38:35,077 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:38:35,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.83ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 64.9MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:38:35,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.41ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 63.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:38:35,078 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:38:35,078 INFO L158 Benchmark]: RCFGBuilder took 511.06ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 63.7MB in the end (delta: -2.4MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-11-07 23:38:35,078 INFO L158 Benchmark]: TraceAbstraction took 14933.40ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.3MB in the beginning and 599.9MB in the end (delta: -536.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-07 23:38:35,078 INFO L158 Benchmark]: Witness Printer took 59.91ms. Allocated memory is still 1.1GB. Free memory was 599.9MB in the beginning and 595.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:38:35,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.83ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 64.9MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.41ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 63.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 511.06ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 63.7MB in the end (delta: -2.4MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14933.40ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.3MB in the beginning and 599.9MB in the end (delta: -536.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 59.91ms. Allocated memory is still 1.1GB. Free memory was 599.9MB in the beginning and 595.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 96 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.8s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1457 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1410 mSDsluCounter, 1035 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 991 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5201 IncrementalHoareTripleChecker+Invalid, 5260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 44 mSDtfsCounter, 5201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 723 GetRequests, 528 SyntacticMatches, 11 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=527occurred in iteration=12, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 712 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 973 ConstructedInterpolants, 0 QuantifiedInterpolants, 2216 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1179 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 322/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:38:35,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE