./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i --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/goblint-regression/28-race_reach_73-funloop_hard_racefree.i', '-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', 'c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5'] 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/goblint-regression/28-race_reach_73-funloop_hard_racefree.i -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 c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:34:24,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:34:24,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:34:24,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:34:24,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:34:24,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:34:24,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:34:24,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:34:24,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:34:24,290 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:34:24,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:34:24,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:34:24,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:34:24,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:34:24,291 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:34:24,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:34:24,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:34:24,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:34:24,292 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 -> c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 [2024-11-07 23:34:24,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:34:24,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:34:24,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:34:24,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:34:24,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:34:24,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-11-07 23:34:25,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:34:25,965 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:34:25,966 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-11-07 23:34:25,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a68a6943c/f9d2cd9a1dde4beebe35a773cf2bf30c/FLAGd6b11e2d1 [2024-11-07 23:34:26,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a68a6943c/f9d2cd9a1dde4beebe35a773cf2bf30c [2024-11-07 23:34:26,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:34:26,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:34:26,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:34:26,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:34:26,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:34:26,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15da18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26, skipping insertion in model container [2024-11-07 23:34:26,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:34:26,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:34:26,585 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:34:26,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:34:26,685 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:34:26,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26 WrapperNode [2024-11-07 23:34:26,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:34:26,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:34:26,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:34:26,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:34:26,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,747 INFO L138 Inliner]: procedures = 272, calls = 110, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 372 [2024-11-07 23:34:26,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:34:26,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:34:26,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:34:26,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:34:26,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,768 INFO L175 MemorySlicer]: Split 84 memory accesses to 4 slices as follows [2, 5, 2, 75]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 0, 60]. The 7 writes are split as follows [0, 0, 1, 6]. [2024-11-07 23:34:26,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:34:26,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:34:26,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:34:26,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:34:26,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (1/1) ... [2024-11-07 23:34:26,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:34:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:26,812 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 23:34:26,814 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 23:34:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 23:34:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 23:34:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 23:34:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:34:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:34:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:34:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 23:34:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 23:34:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:34:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:34:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:34:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 23:34:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:34:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:34:26,833 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 23:34:26,976 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:34:26,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:34:27,321 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:34:27,321 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:34:27,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:34:27,714 INFO L316 CfgBuilder]: Removed 35 assume(true) statements. [2024-11-07 23:34:27,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:34:27 BoogieIcfgContainer [2024-11-07 23:34:27,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:34:27,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:34:27,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:34:27,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:34:27,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:34:26" (1/3) ... [2024-11-07 23:34:27,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177cd7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:34:27, skipping insertion in model container [2024-11-07 23:34:27,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:26" (2/3) ... [2024-11-07 23:34:27,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177cd7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:34:27, skipping insertion in model container [2024-11-07 23:34:27,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:34:27" (3/3) ... [2024-11-07 23:34:27,721 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_73-funloop_hard_racefree.i [2024-11-07 23:34:27,731 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:34:27,731 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-07 23:34:27,731 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:34:27,768 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 23:34:27,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 166 transitions, 339 flow [2024-11-07 23:34:27,845 INFO L124 PetriNetUnfolderBase]: 60/262 cut-off events. [2024-11-07 23:34:27,848 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:34:27,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 262 events. 60/262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1294 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 151. Up to 8 conditions per place. [2024-11-07 23:34:27,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 166 transitions, 339 flow [2024-11-07 23:34:27,857 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 165 transitions, 337 flow [2024-11-07 23:34:27,861 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:34:27,868 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;@11ab59e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:34:27,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-07 23:34:27,873 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:34:27,873 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:34:27,873 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:34:27,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:27,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:34:27,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:27,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:27,877 INFO L85 PathProgramCache]: Analyzing trace with hash 945102, now seen corresponding path program 1 times [2024-11-07 23:34:27,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:27,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418715032] [2024-11-07 23:34:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:27,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:28,099 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 23:34:28,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:28,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418715032] [2024-11-07 23:34:28,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418715032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:28,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:28,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:28,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637038690] [2024-11-07 23:34:28,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:28,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:28,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:28,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:28,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:28,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-07 23:34:28,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 165 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 23:34:28,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:28,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-07 23:34:28,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:28,783 INFO L124 PetriNetUnfolderBase]: 971/3020 cut-off events. [2024-11-07 23:34:28,783 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:34:28,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4877 conditions, 3020 events. 971/3020 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 24618 event pairs, 820 based on Foata normal form. 535/3140 useless extension candidates. Maximal degree in co-relation 4727. Up to 1850 conditions per place. [2024-11-07 23:34:28,798 INFO L140 encePairwiseOnDemand]: 130/166 looper letters, 70 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-07 23:34:28,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 137 transitions, 427 flow [2024-11-07 23:34:28,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:28,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2024-11-07 23:34:28,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5451807228915663 [2024-11-07 23:34:28,815 INFO L175 Difference]: Start difference. First operand has 132 places, 165 transitions, 337 flow. Second operand 4 states and 362 transitions. [2024-11-07 23:34:28,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 137 transitions, 427 flow [2024-11-07 23:34:28,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 137 transitions, 427 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:34:28,827 INFO L231 Difference]: Finished difference. Result has 137 places, 137 transitions, 301 flow [2024-11-07 23:34:28,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=137, PETRI_TRANSITIONS=137} [2024-11-07 23:34:28,832 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 5 predicate places. [2024-11-07 23:34:28,833 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 137 transitions, 301 flow [2024-11-07 23:34:28,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 23:34:28,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:28,834 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-07 23:34:28,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:34:28,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:28,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:28,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1908195227, now seen corresponding path program 1 times [2024-11-07 23:34:28,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:28,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730357406] [2024-11-07 23:34:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:28,938 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 23:34:28,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:28,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730357406] [2024-11-07 23:34:28,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730357406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:28,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881617299] [2024-11-07 23:34:28,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:28,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:28,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:28,945 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 23:34:28,946 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 23:34:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:29,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:34:29,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:29,060 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 23:34:29,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:34:29,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881617299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:29,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:34:29,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:34:29,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338389879] [2024-11-07 23:34:29,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:29,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:34:29,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:29,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:34:29,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:34:29,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-07 23:34:29,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 137 transitions, 301 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 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 23:34:29,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:29,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-07 23:34:29,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:29,428 INFO L124 PetriNetUnfolderBase]: 971/3019 cut-off events. [2024-11-07 23:34:29,428 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:34:29,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4887 conditions, 3019 events. 971/3019 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 24617 event pairs, 820 based on Foata normal form. 1/2605 useless extension candidates. Maximal degree in co-relation 4869. Up to 1845 conditions per place. [2024-11-07 23:34:29,439 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 66 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-07 23:34:29,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 136 transitions, 441 flow [2024-11-07 23:34:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:34:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:34:29,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 457 transitions. [2024-11-07 23:34:29,442 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45883534136546184 [2024-11-07 23:34:29,442 INFO L175 Difference]: Start difference. First operand has 137 places, 137 transitions, 301 flow. Second operand 6 states and 457 transitions. [2024-11-07 23:34:29,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 136 transitions, 441 flow [2024-11-07 23:34:29,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 136 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:34:29,444 INFO L231 Difference]: Finished difference. Result has 140 places, 136 transitions, 307 flow [2024-11-07 23:34:29,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=307, PETRI_PLACES=140, PETRI_TRANSITIONS=136} [2024-11-07 23:34:29,445 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 8 predicate places. [2024-11-07 23:34:29,445 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 136 transitions, 307 flow [2024-11-07 23:34:29,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 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 23:34:29,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:29,446 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:34:29,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:34:29,646 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 23:34:29,647 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:29,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash 975491157, now seen corresponding path program 1 times [2024-11-07 23:34:29,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:29,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21957348] [2024-11-07 23:34:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:29,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:34:29,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:29,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21957348] [2024-11-07 23:34:29,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21957348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:29,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:29,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:29,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573409153] [2024-11-07 23:34:29,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:29,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:34:29,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:29,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:34:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:34:29,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-07 23:34:29,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 136 transitions, 307 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 23:34:29,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:29,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-07 23:34:29,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:30,010 INFO L124 PetriNetUnfolderBase]: 971/3018 cut-off events. [2024-11-07 23:34:30,011 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 23:34:30,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4889 conditions, 3018 events. 971/3018 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 24572 event pairs, 820 based on Foata normal form. 1/2605 useless extension candidates. Maximal degree in co-relation 4865. Up to 1848 conditions per place. [2024-11-07 23:34:30,025 INFO L140 encePairwiseOnDemand]: 163/166 looper letters, 67 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-11-07 23:34:30,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 135 transitions, 445 flow [2024-11-07 23:34:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:34:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:34:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-07 23:34:30,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5261044176706827 [2024-11-07 23:34:30,027 INFO L175 Difference]: Start difference. First operand has 140 places, 136 transitions, 307 flow. Second operand 3 states and 262 transitions. [2024-11-07 23:34:30,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 135 transitions, 445 flow [2024-11-07 23:34:30,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 135 transitions, 423 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-07 23:34:30,030 INFO L231 Difference]: Finished difference. Result has 135 places, 135 transitions, 289 flow [2024-11-07 23:34:30,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=135, PETRI_TRANSITIONS=135} [2024-11-07 23:34:30,031 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 3 predicate places. [2024-11-07 23:34:30,031 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 135 transitions, 289 flow [2024-11-07 23:34:30,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 23:34:30,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:30,031 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:30,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:34:30,031 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:30,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:30,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1141375690, now seen corresponding path program 1 times [2024-11-07 23:34:30,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:30,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142563683] [2024-11-07 23:34:30,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:30,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:30,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:30,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142563683] [2024-11-07 23:34:30,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142563683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:30,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181314303] [2024-11-07 23:34:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:30,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:30,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:30,104 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 23:34:30,105 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 23:34:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:30,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:34:30,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:30,200 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:34:30,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:30,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181314303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:34:30,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:34:30,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-07 23:34:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170451121] [2024-11-07 23:34:30,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:34:30,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 23:34:30,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 23:34:30,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 23:34:30,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-07 23:34:30,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 135 transitions, 289 flow. Second operand has 10 states, 10 states have (on average 65.3) internal successors, (653), 10 states have internal predecessors, (653), 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 23:34:30,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:30,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-07 23:34:30,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:30,625 INFO L124 PetriNetUnfolderBase]: 971/3022 cut-off events. [2024-11-07 23:34:30,625 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-07 23:34:30,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4892 conditions, 3022 events. 971/3022 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 24604 event pairs, 820 based on Foata normal form. 2/2611 useless extension candidates. Maximal degree in co-relation 4858. Up to 1846 conditions per place. [2024-11-07 23:34:30,636 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 67 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2024-11-07 23:34:30,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 138 transitions, 452 flow [2024-11-07 23:34:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:34:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 23:34:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 524 transitions. [2024-11-07 23:34:30,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4509466437177281 [2024-11-07 23:34:30,638 INFO L175 Difference]: Start difference. First operand has 135 places, 135 transitions, 289 flow. Second operand 7 states and 524 transitions. [2024-11-07 23:34:30,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 138 transitions, 452 flow [2024-11-07 23:34:30,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 438 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:30,641 INFO L231 Difference]: Finished difference. Result has 141 places, 138 transitions, 315 flow [2024-11-07 23:34:30,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=315, PETRI_PLACES=141, PETRI_TRANSITIONS=138} [2024-11-07 23:34:30,642 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 9 predicate places. [2024-11-07 23:34:30,642 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 138 transitions, 315 flow [2024-11-07 23:34:30,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.3) internal successors, (653), 10 states have internal predecessors, (653), 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 23:34:30,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:30,642 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:30,656 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 23:34:30,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:30,843 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:30,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:30,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1298542442, now seen corresponding path program 2 times [2024-11-07 23:34:30,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:30,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782339523] [2024-11-07 23:34:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:30,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 23:34:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782339523] [2024-11-07 23:34:30,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782339523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:30,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:30,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:34:30,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44835770] [2024-11-07 23:34:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:30,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:30,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:30,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:30,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:30,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2024-11-07 23:34:30,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 23:34:30,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:30,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2024-11-07 23:34:30,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:31,195 INFO L124 PetriNetUnfolderBase]: 949/2623 cut-off events. [2024-11-07 23:34:31,196 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-07 23:34:31,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4466 conditions, 2623 events. 949/2623 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 20300 event pairs, 0 based on Foata normal form. 21/2339 useless extension candidates. Maximal degree in co-relation 4427. Up to 1753 conditions per place. [2024-11-07 23:34:31,205 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 115 selfloop transitions, 3 changer transitions 0/179 dead transitions. [2024-11-07 23:34:31,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 179 transitions, 633 flow [2024-11-07 23:34:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2024-11-07 23:34:31,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5542168674698795 [2024-11-07 23:34:31,207 INFO L175 Difference]: Start difference. First operand has 141 places, 138 transitions, 315 flow. Second operand 4 states and 368 transitions. [2024-11-07 23:34:31,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 179 transitions, 633 flow [2024-11-07 23:34:31,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 179 transitions, 629 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:31,210 INFO L231 Difference]: Finished difference. Result has 141 places, 136 transitions, 317 flow [2024-11-07 23:34:31,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=317, PETRI_PLACES=141, PETRI_TRANSITIONS=136} [2024-11-07 23:34:31,210 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 9 predicate places. [2024-11-07 23:34:31,210 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 136 transitions, 317 flow [2024-11-07 23:34:31,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 23:34:31,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:31,211 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:31,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:34:31,211 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:31,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:31,212 INFO L85 PathProgramCache]: Analyzing trace with hash 108466708, now seen corresponding path program 1 times [2024-11-07 23:34:31,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:31,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825167282] [2024-11-07 23:34:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:31,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:34:31,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825167282] [2024-11-07 23:34:31,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825167282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289049637] [2024-11-07 23:34:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:31,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:31,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:31,336 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 23:34:31,341 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 23:34:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:31,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 23:34:31,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:34:31,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:34:31,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:34:31,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289049637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:34:31,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:34:31,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-07 23:34:31,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919616156] [2024-11-07 23:34:31,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:34:31,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 23:34:31,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:31,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 23:34:31,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-07 23:34:31,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-07 23:34:31,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 136 transitions, 317 flow. Second operand has 18 states, 18 states have (on average 65.22222222222223) internal successors, (1174), 18 states have internal predecessors, (1174), 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 23:34:31,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:31,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-07 23:34:31,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:32,032 INFO L124 PetriNetUnfolderBase]: 968/2905 cut-off events. [2024-11-07 23:34:32,032 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-11-07 23:34:32,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4815 conditions, 2905 events. 968/2905 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 23119 event pairs, 820 based on Foata normal form. 4/2539 useless extension candidates. Maximal degree in co-relation 4740. Up to 1810 conditions per place. [2024-11-07 23:34:32,044 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 67 selfloop transitions, 15 changer transitions 0/144 dead transitions. [2024-11-07 23:34:32,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 529 flow [2024-11-07 23:34:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 23:34:32,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 23:34:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1046 transitions. [2024-11-07 23:34:32,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42008032128514056 [2024-11-07 23:34:32,050 INFO L175 Difference]: Start difference. First operand has 141 places, 136 transitions, 317 flow. Second operand 15 states and 1046 transitions. [2024-11-07 23:34:32,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 529 flow [2024-11-07 23:34:32,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 144 transitions, 523 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:34:32,052 INFO L231 Difference]: Finished difference. Result has 156 places, 144 transitions, 408 flow [2024-11-07 23:34:32,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=408, PETRI_PLACES=156, PETRI_TRANSITIONS=144} [2024-11-07 23:34:32,053 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 24 predicate places. [2024-11-07 23:34:32,053 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 144 transitions, 408 flow [2024-11-07 23:34:32,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 65.22222222222223) internal successors, (1174), 18 states have internal predecessors, (1174), 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 23:34:32,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:32,054 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:32,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 23:34:32,255 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 23:34:32,255 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:32,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:32,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1348475092, now seen corresponding path program 2 times [2024-11-07 23:34:32,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:32,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148106514] [2024-11-07 23:34:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:32,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:34:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148106514] [2024-11-07 23:34:32,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148106514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374568050] [2024-11-07 23:34:32,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:34:32,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:32,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:32,525 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 23:34:32,528 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 23:34:32,615 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 23:34:32,615 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:34:32,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 23:34:32,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:32,663 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:34:32,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:34:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:34:32,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374568050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:34:32,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:34:32,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-07 23:34:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142687265] [2024-11-07 23:34:32,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:34:32,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 23:34:32,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 23:34:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-07 23:34:32,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-07 23:34:32,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 144 transitions, 408 flow. Second operand has 23 states, 23 states have (on average 65.21739130434783) internal successors, (1500), 23 states have internal predecessors, (1500), 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 23:34:32,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:32,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-07 23:34:32,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:33,223 INFO L124 PetriNetUnfolderBase]: 968/2938 cut-off events. [2024-11-07 23:34:33,223 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-07 23:34:33,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4878 conditions, 2938 events. 968/2938 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 23392 event pairs, 820 based on Foata normal form. 3/2566 useless extension candidates. Maximal degree in co-relation 4743. Up to 1808 conditions per place. [2024-11-07 23:34:33,232 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 67 selfloop transitions, 21 changer transitions 0/150 dead transitions. [2024-11-07 23:34:33,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 150 transitions, 638 flow [2024-11-07 23:34:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 23:34:33,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 23:34:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1435 transitions. [2024-11-07 23:34:33,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41164658634538154 [2024-11-07 23:34:33,236 INFO L175 Difference]: Start difference. First operand has 156 places, 144 transitions, 408 flow. Second operand 21 states and 1435 transitions. [2024-11-07 23:34:33,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 150 transitions, 638 flow [2024-11-07 23:34:33,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 150 transitions, 628 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-07 23:34:33,239 INFO L231 Difference]: Finished difference. Result has 175 places, 150 transitions, 509 flow [2024-11-07 23:34:33,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=509, PETRI_PLACES=175, PETRI_TRANSITIONS=150} [2024-11-07 23:34:33,239 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 43 predicate places. [2024-11-07 23:34:33,239 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 150 transitions, 509 flow [2024-11-07 23:34:33,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 65.21739130434783) internal successors, (1500), 23 states have internal predecessors, (1500), 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 23:34:33,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:33,240 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:33,253 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 23:34:33,444 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,SelfDestructingSolverStorable6 [2024-11-07 23:34:33,444 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-07 23:34:33,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:33,445 INFO L85 PathProgramCache]: Analyzing trace with hash -505648515, now seen corresponding path program 3 times [2024-11-07 23:34:33,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:33,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92027303] [2024-11-07 23:34:33,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:33,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:33,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:34:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:33,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:34:33,511 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 23:34:33,515 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-07 23:34:33,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2024-11-07 23:34:33,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2024-11-07 23:34:33,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2024-11-07 23:34:33,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2024-11-07 23:34:33,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2024-11-07 23:34:33,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2024-11-07 23:34:33,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:34:33,517 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-07 23:34:33,519 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 23:34:33,519 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 23:34:33,548 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:34:33,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 218 transitions, 452 flow [2024-11-07 23:34:33,585 INFO L124 PetriNetUnfolderBase]: 97/429 cut-off events. [2024-11-07 23:34:33,585 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 23:34:33,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 429 events. 97/429 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2400 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 264. Up to 12 conditions per place. [2024-11-07 23:34:33,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 218 transitions, 452 flow [2024-11-07 23:34:33,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 218 transitions, 452 flow [2024-11-07 23:34:33,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:34:33,597 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;@11ab59e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:34:33,597 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-07 23:34:33,598 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:34:33,598 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:34:33,598 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:34:33,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:33,598 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:34:33,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-07 23:34:33,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:33,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1161576, now seen corresponding path program 1 times [2024-11-07 23:34:33,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:33,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222063156] [2024-11-07 23:34:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:33,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:33,629 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 23:34:33,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:33,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222063156] [2024-11-07 23:34:33,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222063156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:33,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:33,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540908997] [2024-11-07 23:34:33,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:33,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:33,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:33,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 218 [2024-11-07 23:34:33,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 218 transitions, 452 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 23:34:33,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:33,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 218 [2024-11-07 23:34:33,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:38,065 INFO L124 PetriNetUnfolderBase]: 40815/88548 cut-off events. [2024-11-07 23:34:38,065 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-07 23:34:38,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148123 conditions, 88548 events. 40815/88548 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 2483. Compared 1023249 event pairs, 35780 based on Foata normal form. 17425/94055 useless extension candidates. Maximal degree in co-relation 110414. Up to 59461 conditions per place. [2024-11-07 23:34:38,403 INFO L140 encePairwiseOnDemand]: 172/218 looper letters, 94 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2024-11-07 23:34:38,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 180 transitions, 570 flow [2024-11-07 23:34:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2024-11-07 23:34:38,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5412844036697247 [2024-11-07 23:34:38,404 INFO L175 Difference]: Start difference. First operand has 173 places, 218 transitions, 452 flow. Second operand 4 states and 472 transitions. [2024-11-07 23:34:38,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 180 transitions, 570 flow [2024-11-07 23:34:38,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 180 transitions, 570 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:34:38,407 INFO L231 Difference]: Finished difference. Result has 178 places, 180 transitions, 396 flow [2024-11-07 23:34:38,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=178, PETRI_TRANSITIONS=180} [2024-11-07 23:34:38,408 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, 5 predicate places. [2024-11-07 23:34:38,408 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 180 transitions, 396 flow [2024-11-07 23:34:38,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 23:34:38,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:38,408 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-07 23:34:38,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:34:38,408 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-07 23:34:38,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash 246030885, now seen corresponding path program 1 times [2024-11-07 23:34:38,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:38,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136456393] [2024-11-07 23:34:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:38,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:38,453 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 23:34:38,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:38,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136456393] [2024-11-07 23:34:38,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136456393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:38,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734209344] [2024-11-07 23:34:38,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:38,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:38,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:38,456 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 23:34:38,459 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 23:34:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:38,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:34:38,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:38,550 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 23:34:38,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:34:38,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734209344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:38,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:34:38,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:34:38,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925043349] [2024-11-07 23:34:38,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:38,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:34:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:38,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:34:38,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:34:38,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 218 [2024-11-07 23:34:38,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 180 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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 23:34:38,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:38,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 218 [2024-11-07 23:34:38,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:43,177 INFO L124 PetriNetUnfolderBase]: 40815/88547 cut-off events. [2024-11-07 23:34:43,178 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-07 23:34:43,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148133 conditions, 88547 events. 40815/88547 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 2483. Compared 1023339 event pairs, 35780 based on Foata normal form. 1/76630 useless extension candidates. Maximal degree in co-relation 148114. Up to 59456 conditions per place. [2024-11-07 23:34:43,699 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 90 selfloop transitions, 6 changer transitions 0/179 dead transitions. [2024-11-07 23:34:43,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 179 transitions, 584 flow [2024-11-07 23:34:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:34:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:34:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2024-11-07 23:34:43,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45489296636085624 [2024-11-07 23:34:43,705 INFO L175 Difference]: Start difference. First operand has 178 places, 180 transitions, 396 flow. Second operand 6 states and 595 transitions. [2024-11-07 23:34:43,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 179 transitions, 584 flow [2024-11-07 23:34:43,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 179 transitions, 582 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:34:43,712 INFO L231 Difference]: Finished difference. Result has 181 places, 179 transitions, 402 flow [2024-11-07 23:34:43,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=181, PETRI_TRANSITIONS=179} [2024-11-07 23:34:43,712 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, 8 predicate places. [2024-11-07 23:34:43,713 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 179 transitions, 402 flow [2024-11-07 23:34:43,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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 23:34:43,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:43,713 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:34:43,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 23:34:43,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 23:34:43,914 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-07 23:34:43,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash -962975889, now seen corresponding path program 1 times [2024-11-07 23:34:43,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:43,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835036313] [2024-11-07 23:34:43,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:43,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:34:43,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835036313] [2024-11-07 23:34:43,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835036313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:43,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:43,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:43,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505147749] [2024-11-07 23:34:43,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:43,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:34:43,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:34:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:34:43,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 218 [2024-11-07 23:34:43,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 179 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 23:34:43,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:43,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 218 [2024-11-07 23:34:43,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:48,774 INFO L124 PetriNetUnfolderBase]: 40815/88546 cut-off events. [2024-11-07 23:34:48,778 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-11-07 23:34:48,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148135 conditions, 88546 events. 40815/88546 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 2479. Compared 1023303 event pairs, 35780 based on Foata normal form. 1/76630 useless extension candidates. Maximal degree in co-relation 148110. Up to 59459 conditions per place. [2024-11-07 23:34:49,190 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 91 selfloop transitions, 4 changer transitions 0/178 dead transitions. [2024-11-07 23:34:49,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 178 transitions, 588 flow [2024-11-07 23:34:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:34:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:34:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2024-11-07 23:34:49,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5244648318042814 [2024-11-07 23:34:49,192 INFO L175 Difference]: Start difference. First operand has 181 places, 179 transitions, 402 flow. Second operand 3 states and 343 transitions. [2024-11-07 23:34:49,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 178 transitions, 588 flow [2024-11-07 23:34:49,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 178 transitions, 566 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-07 23:34:49,194 INFO L231 Difference]: Finished difference. Result has 176 places, 178 transitions, 384 flow [2024-11-07 23:34:49,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=176, PETRI_TRANSITIONS=178} [2024-11-07 23:34:49,195 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, 3 predicate places. [2024-11-07 23:34:49,195 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 178 transitions, 384 flow [2024-11-07 23:34:49,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 23:34:49,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:49,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:49,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:34:49,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-07 23:34:49,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:49,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2004561322, now seen corresponding path program 1 times [2024-11-07 23:34:49,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:49,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523013230] [2024-11-07 23:34:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:49,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:49,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:49,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523013230] [2024-11-07 23:34:49,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523013230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:49,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957596955] [2024-11-07 23:34:49,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:49,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:49,242 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 23:34:49,246 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 23:34:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:49,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:34:49,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:49,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:34:49,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:49,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957596955] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:34:49,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:34:49,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-07 23:34:49,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119541770] [2024-11-07 23:34:49,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:34:49,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 23:34:49,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:49,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 23:34:49,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 23:34:49,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 218 [2024-11-07 23:34:49,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 178 transitions, 384 flow. Second operand has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 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 23:34:49,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:49,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 218 [2024-11-07 23:34:49,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:53,939 INFO L124 PetriNetUnfolderBase]: 40815/88550 cut-off events. [2024-11-07 23:34:53,939 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-07 23:34:54,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148138 conditions, 88550 events. 40815/88550 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2479. Compared 1023205 event pairs, 35780 based on Foata normal form. 2/76636 useless extension candidates. Maximal degree in co-relation 148103. Up to 59457 conditions per place. [2024-11-07 23:34:54,522 INFO L140 encePairwiseOnDemand]: 214/218 looper letters, 91 selfloop transitions, 7 changer transitions 0/181 dead transitions. [2024-11-07 23:34:54,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 181 transitions, 595 flow [2024-11-07 23:34:54,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:34:54,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 23:34:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 681 transitions. [2024-11-07 23:34:54,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44626474442988207 [2024-11-07 23:34:54,524 INFO L175 Difference]: Start difference. First operand has 176 places, 178 transitions, 384 flow. Second operand 7 states and 681 transitions. [2024-11-07 23:34:54,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 181 transitions, 595 flow [2024-11-07 23:34:54,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 181 transitions, 581 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:54,527 INFO L231 Difference]: Finished difference. Result has 182 places, 181 transitions, 410 flow [2024-11-07 23:34:54,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=410, PETRI_PLACES=182, PETRI_TRANSITIONS=181} [2024-11-07 23:34:54,528 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, 9 predicate places. [2024-11-07 23:34:54,528 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 181 transitions, 410 flow [2024-11-07 23:34:54,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 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 23:34:54,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:54,528 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:54,541 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 23:34:54,729 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,SelfDestructingSolverStorable11 [2024-11-07 23:34:54,729 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-07 23:34:54,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash -406973130, now seen corresponding path program 2 times [2024-11-07 23:34:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:54,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972622656] [2024-11-07 23:34:54,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:54,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 23:34:54,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:54,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972622656] [2024-11-07 23:34:54,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972622656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:54,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:54,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:34:54,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354494762] [2024-11-07 23:34:54,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:54,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:54,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:54,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:54,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 218 [2024-11-07 23:34:54,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 181 transitions, 410 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 23:34:54,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:54,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 218 [2024-11-07 23:34:54,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:59,912 INFO L124 PetriNetUnfolderBase]: 43605/94478 cut-off events. [2024-11-07 23:34:59,912 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-07 23:35:00,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158178 conditions, 94478 events. 43605/94478 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 2583. Compared 1100385 event pairs, 24476 based on Foata normal form. 21/81962 useless extension candidates. Maximal degree in co-relation 158138. Up to 63503 conditions per place. [2024-11-07 23:35:00,388 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 143 selfloop transitions, 3 changer transitions 0/226 dead transitions. [2024-11-07 23:35:00,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 226 transitions, 792 flow [2024-11-07 23:35:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:35:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:35:00,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2024-11-07 23:35:00,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5412844036697247 [2024-11-07 23:35:00,390 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 410 flow. Second operand 4 states and 472 transitions. [2024-11-07 23:35:00,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 226 transitions, 792 flow [2024-11-07 23:35:00,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 226 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:35:00,393 INFO L231 Difference]: Finished difference. Result has 185 places, 183 transitions, 430 flow [2024-11-07 23:35:00,393 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=430, PETRI_PLACES=185, PETRI_TRANSITIONS=183} [2024-11-07 23:35:00,394 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, 12 predicate places. [2024-11-07 23:35:00,394 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 183 transitions, 430 flow [2024-11-07 23:35:00,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:00,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:35:00,394 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:35:00,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:35:00,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-07 23:35:00,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:35:00,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1219599840, now seen corresponding path program 1 times [2024-11-07 23:35:00,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:35:00,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288937985] [2024-11-07 23:35:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:00,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:35:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:00,489 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:35:00,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:35:00,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288937985] [2024-11-07 23:35:00,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288937985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:35:00,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937225027] [2024-11-07 23:35:00,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:35:00,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:35:00,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:35:00,491 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:35:00,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 23:35:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:35:00,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 23:35:00,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:35:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:35:00,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:35:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 23:35:00,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937225027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:35:00,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:35:00,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-07 23:35:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725767421] [2024-11-07 23:35:00,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:35:00,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 23:35:00,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:35:00,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 23:35:00,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-07 23:35:00,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 218 [2024-11-07 23:35:00,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 183 transitions, 430 flow. Second operand has 18 states, 18 states have (on average 84.27777777777777) internal successors, (1517), 18 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:35:00,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:35:00,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 218 [2024-11-07 23:35:00,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand