./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:07:34,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:07:34,161 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:07:34,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:07:34,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:07:34,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:07:34,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:07:34,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:07:34,212 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:07:34,212 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:07:34,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:07:34,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:07:34,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:07:34,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:07:34,220 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:07:34,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:07:34,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:07:34,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:07:34,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:07:34,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:07:34,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:07:34,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:07:34,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:07:34,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:07:34,227 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:07:34,227 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:07:34,228 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:07:34,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:07:34,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:07:34,228 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:07:34,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:07:34,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:07:34,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:07:34,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:07:34,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:07:34,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:07:34,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:07:34,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:07:34,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:07:34,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:07:34,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:07:34,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:07:34,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:07:34,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:07:34,235 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2024-10-12 00:07:34,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:07:34,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:07:34,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:07:34,560 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:07:34,560 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:07:34,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2024-10-12 00:07:36,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:07:36,446 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:07:36,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2024-10-12 00:07:36,457 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e563e5cd4/a7e13c99708042f7b11b6e9c1177f4b9/FLAG5db9f27e8 [2024-10-12 00:07:36,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e563e5cd4/a7e13c99708042f7b11b6e9c1177f4b9 [2024-10-12 00:07:36,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:07:36,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:07:36,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:07:36,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:07:36,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:07:36,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315a5b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36, skipping insertion in model container [2024-10-12 00:07:36,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:07:36,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:07:36,795 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:07:36,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:07:36,849 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:07:36,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36 WrapperNode [2024-10-12 00:07:36,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:07:36,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:07:36,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:07:36,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:07:36,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,921 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 296 [2024-10-12 00:07:36,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:07:36,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:07:36,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:07:36,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:07:36,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,987 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-12 00:07:36,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:36,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:37,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:37,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:37,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:37,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:07:37,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:07:37,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:07:37,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:07:37,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (1/1) ... [2024-10-12 00:07:37,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:07:37,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:37,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:07:37,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:07:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:07:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:07:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:07:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:07:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:07:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-12 00:07:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-12 00:07:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:07:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 00:07:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 00:07:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 00:07:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-12 00:07:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-12 00:07:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-12 00:07:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:07:37,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:07:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 00:07:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 00:07:37,125 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:07:37,264 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:07:37,266 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:07:37,809 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:07:37,810 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:07:38,318 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:07:38,320 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-12 00:07:38,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:07:38 BoogieIcfgContainer [2024-10-12 00:07:38,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:07:38,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:07:38,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:07:38,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:07:38,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:07:36" (1/3) ... [2024-10-12 00:07:38,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b0df75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:07:38, skipping insertion in model container [2024-10-12 00:07:38,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:36" (2/3) ... [2024-10-12 00:07:38,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b0df75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:07:38, skipping insertion in model container [2024-10-12 00:07:38,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:07:38" (3/3) ... [2024-10-12 00:07:38,332 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2024-10-12 00:07:38,353 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:07:38,353 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-12 00:07:38,353 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:07:38,540 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-12 00:07:38,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 117 transitions, 255 flow [2024-10-12 00:07:38,653 INFO L124 PetriNetUnfolderBase]: 11/114 cut-off events. [2024-10-12 00:07:38,656 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-12 00:07:38,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 11/114 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 451 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2024-10-12 00:07:38,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 117 transitions, 255 flow [2024-10-12 00:07:38,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 111 transitions, 240 flow [2024-10-12 00:07:38,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:07:38,735 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;@1fc1f31c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:07:38,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-10-12 00:07:38,744 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:07:38,749 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-12 00:07:38,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:07:38,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:38,751 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-12 00:07:38,751 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:07:38,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:38,786 INFO L85 PathProgramCache]: Analyzing trace with hash 952881, now seen corresponding path program 1 times [2024-10-12 00:07:38,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:38,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598440635] [2024-10-12 00:07:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:38,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:39,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:39,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598440635] [2024-10-12 00:07:39,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598440635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:39,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:07:39,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:07:39,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840288737] [2024-10-12 00:07:39,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:39,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:07:39,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:39,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:07:39,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:07:39,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2024-10-12 00:07:39,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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) [2024-10-12 00:07:39,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:39,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2024-10-12 00:07:39,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:41,766 INFO L124 PetriNetUnfolderBase]: 9585/16787 cut-off events. [2024-10-12 00:07:41,767 INFO L125 PetriNetUnfolderBase]: For 469/469 co-relation queries the response was YES. [2024-10-12 00:07:41,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30072 conditions, 16787 events. 9585/16787 cut-off events. For 469/469 co-relation queries the response was YES. Maximal size of possible extension queue 924. Compared 140542 event pairs, 7130 based on Foata normal form. 1/12508 useless extension candidates. Maximal degree in co-relation 29022. Up to 12874 conditions per place. [2024-10-12 00:07:41,985 INFO L140 encePairwiseOnDemand]: 103/117 looper letters, 50 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2024-10-12 00:07:41,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 106 transitions, 338 flow [2024-10-12 00:07:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:07:41,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:07:42,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2024-10-12 00:07:42,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6068376068376068 [2024-10-12 00:07:42,006 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 240 flow. Second operand 4 states and 284 transitions. [2024-10-12 00:07:42,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 106 transitions, 338 flow [2024-10-12 00:07:42,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 106 transitions, 326 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-12 00:07:42,032 INFO L231 Difference]: Finished difference. Result has 102 places, 106 transitions, 241 flow [2024-10-12 00:07:42,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=241, PETRI_PLACES=102, PETRI_TRANSITIONS=106} [2024-10-12 00:07:42,040 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -9 predicate places. [2024-10-12 00:07:42,041 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 106 transitions, 241 flow [2024-10-12 00:07:42,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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) [2024-10-12 00:07:42,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:42,041 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-12 00:07:42,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:07:42,042 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:07:42,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:42,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1676461518, now seen corresponding path program 1 times [2024-10-12 00:07:42,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:42,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894900658] [2024-10-12 00:07:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:42,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:42,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:42,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894900658] [2024-10-12 00:07:42,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894900658] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:42,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694663254] [2024-10-12 00:07:42,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:42,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:42,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:42,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:42,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 00:07:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:42,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:07:42,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:42,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:42,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:07:42,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694663254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:42,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:07:42,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-12 00:07:42,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944718959] [2024-10-12 00:07:42,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:42,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:07:42,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:42,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:07:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:07:42,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2024-10-12 00:07:42,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 106 transitions, 241 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 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) [2024-10-12 00:07:42,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:42,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2024-10-12 00:07:42,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:44,626 INFO L124 PetriNetUnfolderBase]: 9585/16786 cut-off events. [2024-10-12 00:07:44,627 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-12 00:07:44,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29813 conditions, 16786 events. 9585/16786 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 904. Compared 140250 event pairs, 7130 based on Foata normal form. 1/12508 useless extension candidates. Maximal degree in co-relation 29786. Up to 12869 conditions per place. [2024-10-12 00:07:44,779 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 46 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2024-10-12 00:07:44,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 343 flow [2024-10-12 00:07:44,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:07:44,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:07:44,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 384 transitions. [2024-10-12 00:07:44,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5470085470085471 [2024-10-12 00:07:44,787 INFO L175 Difference]: Start difference. First operand has 102 places, 106 transitions, 241 flow. Second operand 6 states and 384 transitions. [2024-10-12 00:07:44,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 343 flow [2024-10-12 00:07:44,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 105 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:07:44,790 INFO L231 Difference]: Finished difference. Result has 105 places, 105 transitions, 248 flow [2024-10-12 00:07:44,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=248, PETRI_PLACES=105, PETRI_TRANSITIONS=105} [2024-10-12 00:07:44,792 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2024-10-12 00:07:44,792 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 105 transitions, 248 flow [2024-10-12 00:07:44,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 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) [2024-10-12 00:07:44,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:44,793 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-12 00:07:44,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 00:07:44,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:45,000 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:07:45,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:45,004 INFO L85 PathProgramCache]: Analyzing trace with hash -430698467, now seen corresponding path program 1 times [2024-10-12 00:07:45,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:45,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127643975] [2024-10-12 00:07:45,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:45,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:45,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:45,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127643975] [2024-10-12 00:07:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127643975] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538024854] [2024-10-12 00:07:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:45,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:45,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:45,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:45,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 00:07:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:45,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:07:45,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:45,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:45,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538024854] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:45,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:45,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-12 00:07:45,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906963236] [2024-10-12 00:07:45,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:45,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 00:07:45,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:45,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 00:07:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-12 00:07:45,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2024-10-12 00:07:45,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 248 flow. Second operand has 12 states, 12 states have (on average 56.083333333333336) internal successors, (673), 12 states have internal predecessors, (673), 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) [2024-10-12 00:07:45,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:45,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2024-10-12 00:07:45,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:47,507 INFO L124 PetriNetUnfolderBase]: 9588/16798 cut-off events. [2024-10-12 00:07:47,508 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-10-12 00:07:47,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29857 conditions, 16798 events. 9588/16798 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 904. Compared 140331 event pairs, 7130 based on Foata normal form. 3/12520 useless extension candidates. Maximal degree in co-relation 29787. Up to 12876 conditions per place. [2024-10-12 00:07:47,664 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 49 selfloop transitions, 13 changer transitions 0/114 dead transitions. [2024-10-12 00:07:47,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 114 transitions, 426 flow [2024-10-12 00:07:47,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:07:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:07:47,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 615 transitions. [2024-10-12 00:07:47,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5256410256410257 [2024-10-12 00:07:47,668 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 248 flow. Second operand 10 states and 615 transitions. [2024-10-12 00:07:47,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 114 transitions, 426 flow [2024-10-12 00:07:47,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 114 transitions, 380 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-12 00:07:47,674 INFO L231 Difference]: Finished difference. Result has 112 places, 114 transitions, 300 flow [2024-10-12 00:07:47,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=300, PETRI_PLACES=112, PETRI_TRANSITIONS=114} [2024-10-12 00:07:47,676 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2024-10-12 00:07:47,677 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 114 transitions, 300 flow [2024-10-12 00:07:47,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 56.083333333333336) internal successors, (673), 12 states have internal predecessors, (673), 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) [2024-10-12 00:07:47,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:47,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:47,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 00:07:47,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:47,883 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:07:47,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:47,884 INFO L85 PathProgramCache]: Analyzing trace with hash -238172667, now seen corresponding path program 1 times [2024-10-12 00:07:47,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:47,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581989235] [2024-10-12 00:07:47,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:47,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:47,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:47,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581989235] [2024-10-12 00:07:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581989235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:47,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:07:47,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:07:47,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785799677] [2024-10-12 00:07:47,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:47,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:07:47,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:07:47,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:07:47,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 117 [2024-10-12 00:07:47,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 114 transitions, 300 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2024-10-12 00:07:47,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:47,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 117 [2024-10-12 00:07:47,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:50,423 INFO L124 PetriNetUnfolderBase]: 14876/25554 cut-off events. [2024-10-12 00:07:50,423 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2024-10-12 00:07:50,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45863 conditions, 25554 events. 14876/25554 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 1370. Compared 223866 event pairs, 6540 based on Foata normal form. 532/19232 useless extension candidates. Maximal degree in co-relation 45829. Up to 11925 conditions per place. [2024-10-12 00:07:50,693 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 121 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2024-10-12 00:07:50,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 173 transitions, 674 flow [2024-10-12 00:07:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:07:50,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:07:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2024-10-12 00:07:50,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2024-10-12 00:07:50,696 INFO L175 Difference]: Start difference. First operand has 112 places, 114 transitions, 300 flow. Second operand 4 states and 321 transitions. [2024-10-12 00:07:50,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 173 transitions, 674 flow [2024-10-12 00:07:50,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 173 transitions, 663 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-12 00:07:50,701 INFO L231 Difference]: Finished difference. Result has 115 places, 116 transitions, 323 flow [2024-10-12 00:07:50,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=323, PETRI_PLACES=115, PETRI_TRANSITIONS=116} [2024-10-12 00:07:50,702 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 4 predicate places. [2024-10-12 00:07:50,702 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 116 transitions, 323 flow [2024-10-12 00:07:50,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2024-10-12 00:07:50,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:50,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:50,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 00:07:50,704 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:07:50,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:50,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1206582979, now seen corresponding path program 1 times [2024-10-12 00:07:50,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:50,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675960574] [2024-10-12 00:07:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:50,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:50,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:50,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675960574] [2024-10-12 00:07:50,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675960574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:50,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:07:50,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:07:50,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169240331] [2024-10-12 00:07:50,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:50,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:07:50,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:50,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:07:50,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:07:50,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 117 [2024-10-12 00:07:50,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 116 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:50,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:50,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 117 [2024-10-12 00:07:50,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:52,576 INFO L124 PetriNetUnfolderBase]: 11023/20273 cut-off events. [2024-10-12 00:07:52,576 INFO L125 PetriNetUnfolderBase]: For 3287/3803 co-relation queries the response was YES. [2024-10-12 00:07:52,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37877 conditions, 20273 events. 11023/20273 cut-off events. For 3287/3803 co-relation queries the response was YES. Maximal size of possible extension queue 1159. Compared 184854 event pairs, 8336 based on Foata normal form. 260/15635 useless extension candidates. Maximal degree in co-relation 37848. Up to 14848 conditions per place. [2024-10-12 00:07:52,805 INFO L140 encePairwiseOnDemand]: 114/117 looper letters, 60 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2024-10-12 00:07:52,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 115 transitions, 444 flow [2024-10-12 00:07:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:07:52,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:07:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2024-10-12 00:07:52,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6353276353276354 [2024-10-12 00:07:52,807 INFO L175 Difference]: Start difference. First operand has 115 places, 116 transitions, 323 flow. Second operand 3 states and 223 transitions. [2024-10-12 00:07:52,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 115 transitions, 444 flow [2024-10-12 00:07:52,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 115 transitions, 444 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:07:52,856 INFO L231 Difference]: Finished difference. Result has 117 places, 115 transitions, 324 flow [2024-10-12 00:07:52,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=117, PETRI_TRANSITIONS=115} [2024-10-12 00:07:52,858 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2024-10-12 00:07:52,859 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 115 transitions, 324 flow [2024-10-12 00:07:52,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:52,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:52,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:52,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 00:07:52,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:07:52,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:52,861 INFO L85 PathProgramCache]: Analyzing trace with hash -452384926, now seen corresponding path program 1 times [2024-10-12 00:07:52,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:52,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137387364] [2024-10-12 00:07:52,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:52,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:53,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:53,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:53,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137387364] [2024-10-12 00:07:53,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137387364] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:53,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814082728] [2024-10-12 00:07:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:53,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:53,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:53,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:53,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 00:07:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:53,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-12 00:07:53,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:53,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-12 00:07:53,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-12 00:07:53,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:53,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:53,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2024-10-12 00:07:53,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-10-12 00:07:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:53,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814082728] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:53,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:53,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-12 00:07:53,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692461434] [2024-10-12 00:07:53,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:53,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 00:07:53,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:53,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 00:07:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-12 00:07:53,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 117 [2024-10-12 00:07:53,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 324 flow. Second operand has 13 states, 13 states have (on average 55.38461538461539) internal successors, (720), 13 states have internal predecessors, (720), 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) [2024-10-12 00:07:53,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:53,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 117 [2024-10-12 00:07:53,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:57,824 INFO L124 PetriNetUnfolderBase]: 23157/44515 cut-off events. [2024-10-12 00:07:57,824 INFO L125 PetriNetUnfolderBase]: For 6779/6787 co-relation queries the response was YES. [2024-10-12 00:07:58,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83882 conditions, 44515 events. 23157/44515 cut-off events. For 6779/6787 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 445797 event pairs, 6606 based on Foata normal form. 8/34390 useless extension candidates. Maximal degree in co-relation 83859. Up to 12250 conditions per place. [2024-10-12 00:07:58,269 INFO L140 encePairwiseOnDemand]: 104/117 looper letters, 176 selfloop transitions, 18 changer transitions 0/245 dead transitions. [2024-10-12 00:07:58,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 245 transitions, 1002 flow [2024-10-12 00:07:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:07:58,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:07:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 724 transitions. [2024-10-12 00:07:58,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6188034188034188 [2024-10-12 00:07:58,274 INFO L175 Difference]: Start difference. First operand has 117 places, 115 transitions, 324 flow. Second operand 10 states and 724 transitions. [2024-10-12 00:07:58,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 245 transitions, 1002 flow [2024-10-12 00:07:58,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 245 transitions, 998 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:07:58,416 INFO L231 Difference]: Finished difference. Result has 127 places, 124 transitions, 427 flow [2024-10-12 00:07:58,416 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=427, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2024-10-12 00:07:58,417 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 16 predicate places. [2024-10-12 00:07:58,417 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 427 flow [2024-10-12 00:07:58,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 55.38461538461539) internal successors, (720), 13 states have internal predecessors, (720), 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) [2024-10-12 00:07:58,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:58,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:58,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 00:07:58,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:58,620 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:07:58,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1139061526, now seen corresponding path program 1 times [2024-10-12 00:07:58,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:58,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928405793] [2024-10-12 00:07:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:58,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:58,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:58,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:58,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928405793] [2024-10-12 00:07:58,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928405793] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:58,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132554786] [2024-10-12 00:07:58,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:58,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:58,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:58,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:58,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 00:07:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:58,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-12 00:07:58,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:58,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-12 00:07:59,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-12 00:07:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:59,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:59,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-10-12 00:07:59,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2024-10-12 00:07:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:59,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132554786] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:59,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:59,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-12 00:07:59,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916024105] [2024-10-12 00:07:59,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:59,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 00:07:59,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:59,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 00:07:59,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-12 00:07:59,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 117 [2024-10-12 00:07:59,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 427 flow. Second operand has 13 states, 13 states have (on average 53.53846153846154) internal successors, (696), 13 states have internal predecessors, (696), 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) [2024-10-12 00:07:59,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:59,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 117 [2024-10-12 00:07:59,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:08:04,359 INFO L124 PetriNetUnfolderBase]: 27779/49299 cut-off events. [2024-10-12 00:08:04,359 INFO L125 PetriNetUnfolderBase]: For 21570/21726 co-relation queries the response was YES. [2024-10-12 00:08:05,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101951 conditions, 49299 events. 27779/49299 cut-off events. For 21570/21726 co-relation queries the response was YES. Maximal size of possible extension queue 1596. Compared 458353 event pairs, 7724 based on Foata normal form. 422/38454 useless extension candidates. Maximal degree in co-relation 101915. Up to 15200 conditions per place. [2024-10-12 00:08:05,243 INFO L140 encePairwiseOnDemand]: 104/117 looper letters, 180 selfloop transitions, 18 changer transitions 0/246 dead transitions. [2024-10-12 00:08:05,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 246 transitions, 1083 flow [2024-10-12 00:08:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:08:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:08:05,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 704 transitions. [2024-10-12 00:08:05,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6017094017094017 [2024-10-12 00:08:05,245 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 427 flow. Second operand 10 states and 704 transitions. [2024-10-12 00:08:05,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 246 transitions, 1083 flow [2024-10-12 00:08:05,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 246 transitions, 1071 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-12 00:08:05,295 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 477 flow [2024-10-12 00:08:05,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=477, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-10-12 00:08:05,296 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 23 predicate places. [2024-10-12 00:08:05,296 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 477 flow [2024-10-12 00:08:05,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.53846153846154) internal successors, (696), 13 states have internal predecessors, (696), 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) [2024-10-12 00:08:05,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:08:05,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:08:05,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:08:05,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-12 00:08:05,498 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:08:05,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:08:05,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1463983486, now seen corresponding path program 1 times [2024-10-12 00:08:05,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:08:05,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365120559] [2024-10-12 00:08:05,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:08:05,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:08:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:08:05,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:08:05,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:08:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365120559] [2024-10-12 00:08:05,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365120559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:08:05,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:08:05,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:08:05,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020154966] [2024-10-12 00:08:05,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:08:05,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:08:05,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:08:05,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:08:05,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:08:05,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 117 [2024-10-12 00:08:05,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 477 flow. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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) [2024-10-12 00:08:05,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:08:05,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 117 [2024-10-12 00:08:05,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:08:11,588 INFO L124 PetriNetUnfolderBase]: 33465/61139 cut-off events. [2024-10-12 00:08:11,588 INFO L125 PetriNetUnfolderBase]: For 47735/48656 co-relation queries the response was YES. [2024-10-12 00:08:11,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133223 conditions, 61139 events. 33465/61139 cut-off events. For 47735/48656 co-relation queries the response was YES. Maximal size of possible extension queue 1879. Compared 613241 event pairs, 14827 based on Foata normal form. 1909/48175 useless extension candidates. Maximal degree in co-relation 133185. Up to 26504 conditions per place. [2024-10-12 00:08:12,258 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 148 selfloop transitions, 5 changer transitions 0/203 dead transitions. [2024-10-12 00:08:12,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 203 transitions, 1135 flow [2024-10-12 00:08:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:08:12,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:08:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2024-10-12 00:08:12,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6816239316239316 [2024-10-12 00:08:12,261 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 477 flow. Second operand 4 states and 319 transitions. [2024-10-12 00:08:12,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 203 transitions, 1135 flow [2024-10-12 00:08:12,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 203 transitions, 1087 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-10-12 00:08:12,462 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 487 flow [2024-10-12 00:08:12,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=487, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2024-10-12 00:08:12,463 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 21 predicate places. [2024-10-12 00:08:12,463 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 487 flow [2024-10-12 00:08:12,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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) [2024-10-12 00:08:12,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:08:12,464 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:08:12,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 00:08:12,464 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:08:12,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:08:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash -951168892, now seen corresponding path program 1 times [2024-10-12 00:08:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:08:12,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450049437] [2024-10-12 00:08:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:08:12,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:08:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:08:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:08:12,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:08:12,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450049437] [2024-10-12 00:08:12,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450049437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:08:12,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:08:12,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:08:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239862840] [2024-10-12 00:08:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:08:12,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:08:12,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:08:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:08:12,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:08:12,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 117 [2024-10-12 00:08:12,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 487 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 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) [2024-10-12 00:08:12,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:08:12,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 117 [2024-10-12 00:08:12,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:08:18,996 INFO L124 PetriNetUnfolderBase]: 34633/61030 cut-off events. [2024-10-12 00:08:18,996 INFO L125 PetriNetUnfolderBase]: For 39469/41167 co-relation queries the response was YES. [2024-10-12 00:08:19,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138056 conditions, 61030 events. 34633/61030 cut-off events. For 39469/41167 co-relation queries the response was YES. Maximal size of possible extension queue 1973. Compared 584089 event pairs, 7726 based on Foata normal form. 1481/50623 useless extension candidates. Maximal degree in co-relation 138020. Up to 25526 conditions per place. [2024-10-12 00:08:19,751 INFO L140 encePairwiseOnDemand]: 108/117 looper letters, 205 selfloop transitions, 8 changer transitions 0/261 dead transitions. [2024-10-12 00:08:19,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 261 transitions, 1266 flow [2024-10-12 00:08:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:08:19,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:08:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2024-10-12 00:08:19,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7136752136752137 [2024-10-12 00:08:19,753 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 487 flow. Second operand 6 states and 501 transitions. [2024-10-12 00:08:19,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 261 transitions, 1266 flow [2024-10-12 00:08:20,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 261 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:08:20,052 INFO L231 Difference]: Finished difference. Result has 141 places, 130 transitions, 527 flow [2024-10-12 00:08:20,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=527, PETRI_PLACES=141, PETRI_TRANSITIONS=130} [2024-10-12 00:08:20,053 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 30 predicate places. [2024-10-12 00:08:20,053 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 130 transitions, 527 flow [2024-10-12 00:08:20,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 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) [2024-10-12 00:08:20,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:08:20,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:08:20,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 00:08:20,054 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-10-12 00:08:20,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:08:20,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1861151094, now seen corresponding path program 1 times [2024-10-12 00:08:20,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:08:20,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248846424] [2024-10-12 00:08:20,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:08:20,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:08:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:08:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:08:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:08:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248846424] [2024-10-12 00:08:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248846424] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:08:20,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543931337] [2024-10-12 00:08:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:08:20,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:08:20,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:08:20,197 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:08:20,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 00:08:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:08:20,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-12 00:08:20,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:08:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:08:20,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:08:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:08:20,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543931337] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:08:20,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:08:20,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-10-12 00:08:20,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902628555] [2024-10-12 00:08:20,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:08:20,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-12 00:08:20,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:08:20,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-12 00:08:20,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-10-12 00:08:20,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2024-10-12 00:08:20,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 527 flow. Second operand has 16 states, 16 states have (on average 56.5) internal successors, (904), 16 states have internal predecessors, (904), 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) [2024-10-12 00:08:20,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:08:20,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2024-10-12 00:08:20,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:08:27,103 INFO L124 PetriNetUnfolderBase]: 30053/59329 cut-off events. [2024-10-12 00:08:27,104 INFO L125 PetriNetUnfolderBase]: For 52259/53821 co-relation queries the response was YES. [2024-10-12 00:08:27,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137168 conditions, 59329 events. 30053/59329 cut-off events. For 52259/53821 co-relation queries the response was YES. Maximal size of possible extension queue 1939. Compared 635142 event pairs, 22382 based on Foata normal form. 1616/49602 useless extension candidates. Maximal degree in co-relation 137125. Up to 34499 conditions per place. [2024-10-12 00:08:27,749 INFO L140 encePairwiseOnDemand]: 110/117 looper letters, 144 selfloop transitions, 13 changer transitions 0/213 dead transitions. [2024-10-12 00:08:27,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 213 transitions, 1227 flow [2024-10-12 00:08:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 00:08:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-12 00:08:27,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 557 transitions. [2024-10-12 00:08:27,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5950854700854701 [2024-10-12 00:08:27,752 INFO L175 Difference]: Start difference. First operand has 141 places, 130 transitions, 527 flow. Second operand 8 states and 557 transitions. [2024-10-12 00:08:27,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 213 transitions, 1227 flow