./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/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:48:36,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:48:36,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:48:36,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:48:36,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:48:36,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:48:36,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:48:36,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:48:36,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:48:36,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:48:36,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:48:36,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:48:36,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:48:36,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:48:36,920 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:48:36,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:48:36,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:48:36,920 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:48:36,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:48:36,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:48:36,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:48:36,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:48:36,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:48:36,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:48:36,926 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:48:36,926 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:48:36,926 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:48:36,926 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:48:36,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:48:36,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:48:36,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:48:36,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:48:36,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:48:36,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:48:36,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:48:36,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:48:36,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:48:36,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:48:36,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:48:36,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:48:36,929 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:48:36,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:48:36,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:48:36,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:48:36,934 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 [2024-10-13 16:48:37,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:48:37,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:48:37,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:48:37,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:48:37,179 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:48:37,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2024-10-13 16:48:38,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:48:38,769 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:48:38,769 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2024-10-13 16:48:38,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d0cf3d8/71bafe3a07fe4270810dd83c4b2cd7de/FLAG9381e5f61 [2024-10-13 16:48:38,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d0cf3d8/71bafe3a07fe4270810dd83c4b2cd7de [2024-10-13 16:48:38,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:48:38,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:48:38,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:48:38,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:48:38,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:48:38,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:48:38" (1/1) ... [2024-10-13 16:48:38,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c196b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:38, skipping insertion in model container [2024-10-13 16:48:38,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:48:38" (1/1) ... [2024-10-13 16:48:38,841 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:48:39,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:48:39,031 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:48:39,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:48:39,067 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:48:39,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39 WrapperNode [2024-10-13 16:48:39,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:48:39,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:48:39,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:48:39,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:48:39,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,105 INFO L138 Inliner]: procedures = 22, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 204 [2024-10-13 16:48:39,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:48:39,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:48:39,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:48:39,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:48:39,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,136 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 16:48:39,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:48:39,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:48:39,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:48:39,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:48:39,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (1/1) ... [2024-10-13 16:48:39,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:48:39,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:39,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 16:48:39,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 16:48:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:48:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 16:48:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 16:48:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 16:48:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 16:48:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 16:48:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 16:48:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-13 16:48:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-13 16:48:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:48:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 16:48:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 16:48:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:48:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:48:39,249 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:48:39,362 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:48:39,364 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:48:39,614 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:48:39,614 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:48:39,829 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:48:39,830 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 16:48:39,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:48:39 BoogieIcfgContainer [2024-10-13 16:48:39,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:48:39,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:48:39,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:48:39,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:48:39,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:48:38" (1/3) ... [2024-10-13 16:48:39,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7226d3cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:48:39, skipping insertion in model container [2024-10-13 16:48:39,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:39" (2/3) ... [2024-10-13 16:48:39,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7226d3cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:48:39, skipping insertion in model container [2024-10-13 16:48:39,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:48:39" (3/3) ... [2024-10-13 16:48:39,838 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2024-10-13 16:48:39,850 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:48:39,850 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-13 16:48:39,850 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:48:39,901 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 16:48:39,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 59 transitions, 146 flow [2024-10-13 16:48:39,952 INFO L124 PetriNetUnfolderBase]: 0/55 cut-off events. [2024-10-13 16:48:39,952 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 16:48:39,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 55 events. 0/55 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 168 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-13 16:48:39,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 59 transitions, 146 flow [2024-10-13 16:48:39,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 53 transitions, 127 flow [2024-10-13 16:48:39,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:48:39,968 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;@32adf6f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:48:39,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-10-13 16:48:39,971 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:48:39,971 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-13 16:48:39,971 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:48:39,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:39,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 16:48:39,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:39,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash 14724331, now seen corresponding path program 1 times [2024-10-13 16:48:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:39,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102576092] [2024-10-13 16:48:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:39,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:40,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:40,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102576092] [2024-10-13 16:48:40,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102576092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:40,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:40,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:48:40,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368358057] [2024-10-13 16:48:40,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:40,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:48:40,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:40,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:48:40,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:48:40,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:40,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-10-13 16:48:40,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:40,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:40,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:43,973 INFO L124 PetriNetUnfolderBase]: 45632/62620 cut-off events. [2024-10-13 16:48:43,973 INFO L125 PetriNetUnfolderBase]: For 2993/2993 co-relation queries the response was YES. [2024-10-13 16:48:44,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125993 conditions, 62620 events. 45632/62620 cut-off events. For 2993/2993 co-relation queries the response was YES. Maximal size of possible extension queue 3503. Compared 448431 event pairs, 35456 based on Foata normal form. 0/36534 useless extension candidates. Maximal degree in co-relation 125337. Up to 60972 conditions per place. [2024-10-13 16:48:44,363 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 50 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-10-13 16:48:44,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 268 flow [2024-10-13 16:48:44,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:48:44,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:48:44,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-10-13 16:48:44,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.576271186440678 [2024-10-13 16:48:44,373 INFO L175 Difference]: Start difference. First operand has 66 places, 53 transitions, 127 flow. Second operand 3 states and 102 transitions. [2024-10-13 16:48:44,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 268 flow [2024-10-13 16:48:44,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 250 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 16:48:44,451 INFO L231 Difference]: Finished difference. Result has 62 places, 57 transitions, 161 flow [2024-10-13 16:48:44,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=62, PETRI_TRANSITIONS=57} [2024-10-13 16:48:44,456 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2024-10-13 16:48:44,456 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 57 transitions, 161 flow [2024-10-13 16:48:44,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-10-13 16:48:44,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:44,456 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:44,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:48:44,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:44,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:44,457 INFO L85 PathProgramCache]: Analyzing trace with hash -926894132, now seen corresponding path program 1 times [2024-10-13 16:48:44,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:44,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924584330] [2024-10-13 16:48:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:44,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:44,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:44,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924584330] [2024-10-13 16:48:44,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924584330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:44,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:44,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:48:44,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887580074] [2024-10-13 16:48:44,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:44,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:48:44,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:44,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:48:44,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:48:44,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:44,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 57 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-13 16:48:44,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:44,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:44,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:48,110 INFO L124 PetriNetUnfolderBase]: 50386/71381 cut-off events. [2024-10-13 16:48:48,110 INFO L125 PetriNetUnfolderBase]: For 5835/5835 co-relation queries the response was YES. [2024-10-13 16:48:48,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159485 conditions, 71381 events. 50386/71381 cut-off events. For 5835/5835 co-relation queries the response was YES. Maximal size of possible extension queue 4798. Compared 561757 event pairs, 19835 based on Foata normal form. 0/43857 useless extension candidates. Maximal degree in co-relation 145989. Up to 50647 conditions per place. [2024-10-13 16:48:48,486 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 78 selfloop transitions, 13 changer transitions 0/100 dead transitions. [2024-10-13 16:48:48,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 100 transitions, 455 flow [2024-10-13 16:48:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:48:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:48:48,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 147 transitions. [2024-10-13 16:48:48,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6228813559322034 [2024-10-13 16:48:48,489 INFO L175 Difference]: Start difference. First operand has 62 places, 57 transitions, 161 flow. Second operand 4 states and 147 transitions. [2024-10-13 16:48:48,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 100 transitions, 455 flow [2024-10-13 16:48:48,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 100 transitions, 450 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:48:48,493 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 259 flow [2024-10-13 16:48:48,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=66, PETRI_TRANSITIONS=65} [2024-10-13 16:48:48,494 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2024-10-13 16:48:48,494 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 259 flow [2024-10-13 16:48:48,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-13 16:48:48,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:48,495 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:48,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:48:48,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:48,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:48,497 INFO L85 PathProgramCache]: Analyzing trace with hash -926894133, now seen corresponding path program 1 times [2024-10-13 16:48:48,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:48,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689046643] [2024-10-13 16:48:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:48,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:48,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:48,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689046643] [2024-10-13 16:48:48,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689046643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:48,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:48,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:48:48,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015439334] [2024-10-13 16:48:48,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:48,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:48:48,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:48:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:48:48,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:48,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-10-13 16:48:48,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:48,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:48,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:50,489 INFO L124 PetriNetUnfolderBase]: 27314/37941 cut-off events. [2024-10-13 16:48:50,489 INFO L125 PetriNetUnfolderBase]: For 34385/34385 co-relation queries the response was YES. [2024-10-13 16:48:50,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91885 conditions, 37941 events. 27314/37941 cut-off events. For 34385/34385 co-relation queries the response was YES. Maximal size of possible extension queue 2188. Compared 269149 event pairs, 24962 based on Foata normal form. 3961/28314 useless extension candidates. Maximal degree in co-relation 50430. Up to 36732 conditions per place. [2024-10-13 16:48:50,735 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 47 selfloop transitions, 1 changer transitions 0/57 dead transitions. [2024-10-13 16:48:50,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 57 transitions, 299 flow [2024-10-13 16:48:50,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:48:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:48:50,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-10-13 16:48:50,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4689265536723164 [2024-10-13 16:48:50,740 INFO L175 Difference]: Start difference. First operand has 66 places, 65 transitions, 259 flow. Second operand 3 states and 83 transitions. [2024-10-13 16:48:50,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 57 transitions, 299 flow [2024-10-13 16:48:50,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 57 transitions, 276 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-10-13 16:48:50,743 INFO L231 Difference]: Finished difference. Result has 61 places, 57 transitions, 182 flow [2024-10-13 16:48:50,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2024-10-13 16:48:50,745 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -5 predicate places. [2024-10-13 16:48:50,745 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 182 flow [2024-10-13 16:48:50,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-10-13 16:48:50,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:50,746 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:50,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:48:50,746 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:50,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:50,747 INFO L85 PathProgramCache]: Analyzing trace with hash 379085487, now seen corresponding path program 1 times [2024-10-13 16:48:50,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:50,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632797325] [2024-10-13 16:48:50,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:50,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:50,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:50,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632797325] [2024-10-13 16:48:50,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632797325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:50,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:50,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:48:50,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299447894] [2024-10-13 16:48:50,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:50,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:48:50,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:50,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:48:50,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:48:50,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:50,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-13 16:48:50,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:50,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:50,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:52,278 INFO L124 PetriNetUnfolderBase]: 19554/26903 cut-off events. [2024-10-13 16:48:52,278 INFO L125 PetriNetUnfolderBase]: For 8798/8798 co-relation queries the response was YES. [2024-10-13 16:48:52,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65578 conditions, 26903 events. 19554/26903 cut-off events. For 8798/8798 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 166332 event pairs, 7008 based on Foata normal form. 0/18550 useless extension candidates. Maximal degree in co-relation 65569. Up to 25204 conditions per place. [2024-10-13 16:48:52,405 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 70 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2024-10-13 16:48:52,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 84 transitions, 430 flow [2024-10-13 16:48:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:48:52,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:48:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-10-13 16:48:52,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6214689265536724 [2024-10-13 16:48:52,407 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 182 flow. Second operand 3 states and 110 transitions. [2024-10-13 16:48:52,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 84 transitions, 430 flow [2024-10-13 16:48:52,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:48:52,410 INFO L231 Difference]: Finished difference. Result has 63 places, 61 transitions, 228 flow [2024-10-13 16:48:52,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=63, PETRI_TRANSITIONS=61} [2024-10-13 16:48:52,411 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2024-10-13 16:48:52,411 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 228 flow [2024-10-13 16:48:52,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-13 16:48:52,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:52,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:52,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:48:52,411 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:52,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1240561394, now seen corresponding path program 1 times [2024-10-13 16:48:52,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:52,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008259779] [2024-10-13 16:48:52,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:52,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:52,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008259779] [2024-10-13 16:48:52,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008259779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:52,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:52,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:48:52,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586929988] [2024-10-13 16:48:52,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:52,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:48:52,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:52,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:48:52,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:48:52,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:52,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 228 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-10-13 16:48:52,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:52,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:52,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:53,887 INFO L124 PetriNetUnfolderBase]: 16443/23213 cut-off events. [2024-10-13 16:48:53,887 INFO L125 PetriNetUnfolderBase]: For 8395/8395 co-relation queries the response was YES. [2024-10-13 16:48:53,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62086 conditions, 23213 events. 16443/23213 cut-off events. For 8395/8395 co-relation queries the response was YES. Maximal size of possible extension queue 1516. Compared 154080 event pairs, 3949 based on Foata normal form. 0/16658 useless extension candidates. Maximal degree in co-relation 62075. Up to 21118 conditions per place. [2024-10-13 16:48:54,022 INFO L140 encePairwiseOnDemand]: 50/59 looper letters, 97 selfloop transitions, 13 changer transitions 0/119 dead transitions. [2024-10-13 16:48:54,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 119 transitions, 640 flow [2024-10-13 16:48:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:48:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:48:54,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-10-13 16:48:54,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5796610169491525 [2024-10-13 16:48:54,024 INFO L175 Difference]: Start difference. First operand has 63 places, 61 transitions, 228 flow. Second operand 5 states and 171 transitions. [2024-10-13 16:48:54,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 119 transitions, 640 flow [2024-10-13 16:48:54,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 119 transitions, 627 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:48:54,026 INFO L231 Difference]: Finished difference. Result has 67 places, 65 transitions, 297 flow [2024-10-13 16:48:54,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=297, PETRI_PLACES=67, PETRI_TRANSITIONS=65} [2024-10-13 16:48:54,027 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2024-10-13 16:48:54,027 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 297 flow [2024-10-13 16:48:54,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-10-13 16:48:54,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:54,028 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:54,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 16:48:54,028 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:54,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2018719964, now seen corresponding path program 1 times [2024-10-13 16:48:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:54,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190949743] [2024-10-13 16:48:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:54,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:54,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:54,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190949743] [2024-10-13 16:48:54,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190949743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:54,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:54,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:48:54,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452528373] [2024-10-13 16:48:54,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:54,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:48:54,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:54,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:48:54,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:48:54,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:54,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 297 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-10-13 16:48:54,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:54,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:54,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:56,320 INFO L124 PetriNetUnfolderBase]: 25618/36795 cut-off events. [2024-10-13 16:48:56,321 INFO L125 PetriNetUnfolderBase]: For 22889/22889 co-relation queries the response was YES. [2024-10-13 16:48:56,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103301 conditions, 36795 events. 25618/36795 cut-off events. For 22889/22889 co-relation queries the response was YES. Maximal size of possible extension queue 2270. Compared 260038 event pairs, 7588 based on Foata normal form. 0/27986 useless extension candidates. Maximal degree in co-relation 103288. Up to 12825 conditions per place. [2024-10-13 16:48:56,521 INFO L140 encePairwiseOnDemand]: 44/59 looper letters, 150 selfloop transitions, 20 changer transitions 0/179 dead transitions. [2024-10-13 16:48:56,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 179 transitions, 1139 flow [2024-10-13 16:48:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:48:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:48:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-10-13 16:48:56,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5811138014527845 [2024-10-13 16:48:56,523 INFO L175 Difference]: Start difference. First operand has 67 places, 65 transitions, 297 flow. Second operand 7 states and 240 transitions. [2024-10-13 16:48:56,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 179 transitions, 1139 flow [2024-10-13 16:48:56,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 179 transitions, 1055 flow, removed 28 selfloop flow, removed 3 redundant places. [2024-10-13 16:48:56,530 INFO L231 Difference]: Finished difference. Result has 74 places, 76 transitions, 419 flow [2024-10-13 16:48:56,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=419, PETRI_PLACES=74, PETRI_TRANSITIONS=76} [2024-10-13 16:48:56,531 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 8 predicate places. [2024-10-13 16:48:56,531 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 76 transitions, 419 flow [2024-10-13 16:48:56,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-10-13 16:48:56,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:56,532 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:56,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:48:56,532 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:56,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash 938505655, now seen corresponding path program 1 times [2024-10-13 16:48:56,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:56,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186583855] [2024-10-13 16:48:56,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:56,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:56,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:56,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186583855] [2024-10-13 16:48:56,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186583855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:56,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:56,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:48:56,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582407217] [2024-10-13 16:48:56,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:56,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:48:56,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:48:56,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:48:56,588 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:56,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 76 transitions, 419 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-10-13 16:48:56,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:56,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:56,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:58,471 INFO L124 PetriNetUnfolderBase]: 19793/28471 cut-off events. [2024-10-13 16:48:58,471 INFO L125 PetriNetUnfolderBase]: For 43111/43111 co-relation queries the response was YES. [2024-10-13 16:48:58,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86873 conditions, 28471 events. 19793/28471 cut-off events. For 43111/43111 co-relation queries the response was YES. Maximal size of possible extension queue 1655. Compared 191589 event pairs, 3594 based on Foata normal form. 2338/29034 useless extension candidates. Maximal degree in co-relation 86856. Up to 12747 conditions per place. [2024-10-13 16:48:58,686 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 128 selfloop transitions, 25 changer transitions 0/162 dead transitions. [2024-10-13 16:48:58,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 162 transitions, 1140 flow [2024-10-13 16:48:58,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:48:58,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:48:58,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 190 transitions. [2024-10-13 16:48:58,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6440677966101694 [2024-10-13 16:48:58,688 INFO L175 Difference]: Start difference. First operand has 74 places, 76 transitions, 419 flow. Second operand 5 states and 190 transitions. [2024-10-13 16:48:58,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 162 transitions, 1140 flow [2024-10-13 16:48:58,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 162 transitions, 1134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:48:58,847 INFO L231 Difference]: Finished difference. Result has 78 places, 91 transitions, 647 flow [2024-10-13 16:48:58,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=647, PETRI_PLACES=78, PETRI_TRANSITIONS=91} [2024-10-13 16:48:58,847 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 12 predicate places. [2024-10-13 16:48:58,848 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 91 transitions, 647 flow [2024-10-13 16:48:58,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-10-13 16:48:58,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:58,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:58,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:48:58,848 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:48:58,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1937085644, now seen corresponding path program 2 times [2024-10-13 16:48:58,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:58,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895804377] [2024-10-13 16:48:58,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:58,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:58,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:58,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895804377] [2024-10-13 16:48:58,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895804377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:58,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:58,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:48:58,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490959725] [2024-10-13 16:48:58,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:58,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:48:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:48:58,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:48:58,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:48:58,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 91 transitions, 647 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-10-13 16:48:58,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:58,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:48:58,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:49:01,048 INFO L124 PetriNetUnfolderBase]: 18575/26936 cut-off events. [2024-10-13 16:49:01,049 INFO L125 PetriNetUnfolderBase]: For 55773/55773 co-relation queries the response was YES. [2024-10-13 16:49:01,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93645 conditions, 26936 events. 18575/26936 cut-off events. For 55773/55773 co-relation queries the response was YES. Maximal size of possible extension queue 1571. Compared 182076 event pairs, 6054 based on Foata normal form. 152/25323 useless extension candidates. Maximal degree in co-relation 93626. Up to 24947 conditions per place. [2024-10-13 16:49:01,209 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 122 selfloop transitions, 16 changer transitions 0/147 dead transitions. [2024-10-13 16:49:01,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 147 transitions, 1218 flow [2024-10-13 16:49:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:49:01,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:49:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2024-10-13 16:49:01,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5322033898305085 [2024-10-13 16:49:01,215 INFO L175 Difference]: Start difference. First operand has 78 places, 91 transitions, 647 flow. Second operand 5 states and 157 transitions. [2024-10-13 16:49:01,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 147 transitions, 1218 flow [2024-10-13 16:49:01,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 147 transitions, 1181 flow, removed 16 selfloop flow, removed 1 redundant places. [2024-10-13 16:49:01,566 INFO L231 Difference]: Finished difference. Result has 83 places, 98 transitions, 721 flow [2024-10-13 16:49:01,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=721, PETRI_PLACES=83, PETRI_TRANSITIONS=98} [2024-10-13 16:49:01,571 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-10-13 16:49:01,571 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 98 transitions, 721 flow [2024-10-13 16:49:01,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-10-13 16:49:01,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:49:01,572 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:49:01,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 16:49:01,572 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:49:01,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:49:01,572 INFO L85 PathProgramCache]: Analyzing trace with hash 579136586, now seen corresponding path program 1 times [2024-10-13 16:49:01,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:49:01,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145264940] [2024-10-13 16:49:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:49:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:49:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:49:01,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:49:01,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:49:01,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145264940] [2024-10-13 16:49:01,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145264940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:49:01,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:49:01,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:49:01,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613693256] [2024-10-13 16:49:01,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:49:01,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:49:01,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:49:01,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:49:01,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:49:01,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:49:01,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 98 transitions, 721 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-10-13 16:49:01,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:49:01,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:49:01,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:49:04,361 INFO L124 PetriNetUnfolderBase]: 21318/32521 cut-off events. [2024-10-13 16:49:04,361 INFO L125 PetriNetUnfolderBase]: For 74518/74518 co-relation queries the response was YES. [2024-10-13 16:49:04,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107763 conditions, 32521 events. 21318/32521 cut-off events. For 74518/74518 co-relation queries the response was YES. Maximal size of possible extension queue 1767. Compared 245993 event pairs, 5754 based on Foata normal form. 1091/31582 useless extension candidates. Maximal degree in co-relation 107741. Up to 12547 conditions per place. [2024-10-13 16:49:04,620 INFO L140 encePairwiseOnDemand]: 44/59 looper letters, 188 selfloop transitions, 33 changer transitions 0/230 dead transitions. [2024-10-13 16:49:04,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 230 transitions, 2007 flow [2024-10-13 16:49:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:49:04,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:49:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2024-10-13 16:49:04,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5641646489104116 [2024-10-13 16:49:04,622 INFO L175 Difference]: Start difference. First operand has 83 places, 98 transitions, 721 flow. Second operand 7 states and 233 transitions. [2024-10-13 16:49:04,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 230 transitions, 2007 flow [2024-10-13 16:49:04,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 230 transitions, 1986 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:49:04,782 INFO L231 Difference]: Finished difference. Result has 89 places, 118 transitions, 1091 flow [2024-10-13 16:49:04,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1091, PETRI_PLACES=89, PETRI_TRANSITIONS=118} [2024-10-13 16:49:04,783 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 23 predicate places. [2024-10-13 16:49:04,783 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 118 transitions, 1091 flow [2024-10-13 16:49:04,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-10-13 16:49:04,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:49:04,784 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:49:04,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 16:49:04,784 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:49:04,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:49:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1592886195, now seen corresponding path program 1 times [2024-10-13 16:49:04,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:49:04,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594096435] [2024-10-13 16:49:04,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:49:04,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:49:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:49:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:49:04,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:49:04,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594096435] [2024-10-13 16:49:04,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594096435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:49:04,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:49:04,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:49:04,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397194282] [2024-10-13 16:49:04,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:49:04,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:49:04,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:49:04,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:49:04,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:49:04,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:49:04,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 118 transitions, 1091 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-10-13 16:49:04,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:49:04,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:49:04,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:49:07,247 INFO L124 PetriNetUnfolderBase]: 16216/25028 cut-off events. [2024-10-13 16:49:07,248 INFO L125 PetriNetUnfolderBase]: For 75659/75659 co-relation queries the response was YES. [2024-10-13 16:49:07,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86121 conditions, 25028 events. 16216/25028 cut-off events. For 75659/75659 co-relation queries the response was YES. Maximal size of possible extension queue 1245. Compared 183400 event pairs, 1099 based on Foata normal form. 0/25006 useless extension candidates. Maximal degree in co-relation 86097. Up to 14211 conditions per place. [2024-10-13 16:49:07,416 INFO L140 encePairwiseOnDemand]: 50/59 looper letters, 192 selfloop transitions, 22 changer transitions 0/223 dead transitions. [2024-10-13 16:49:07,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 223 transitions, 2193 flow [2024-10-13 16:49:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:49:07,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:49:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2024-10-13 16:49:07,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5649717514124294 [2024-10-13 16:49:07,418 INFO L175 Difference]: Start difference. First operand has 89 places, 118 transitions, 1091 flow. Second operand 6 states and 200 transitions. [2024-10-13 16:49:07,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 223 transitions, 2193 flow [2024-10-13 16:49:07,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 223 transitions, 2177 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-13 16:49:07,552 INFO L231 Difference]: Finished difference. Result has 88 places, 111 transitions, 1042 flow [2024-10-13 16:49:07,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1042, PETRI_PLACES=88, PETRI_TRANSITIONS=111} [2024-10-13 16:49:07,552 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 22 predicate places. [2024-10-13 16:49:07,553 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 111 transitions, 1042 flow [2024-10-13 16:49:07,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-10-13 16:49:07,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:49:07,553 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:49:07,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 16:49:07,553 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:49:07,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:49:07,554 INFO L85 PathProgramCache]: Analyzing trace with hash -658277972, now seen corresponding path program 1 times [2024-10-13 16:49:07,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:49:07,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457452006] [2024-10-13 16:49:07,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:49:07,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:49:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:49:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:49:07,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:49:07,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457452006] [2024-10-13 16:49:07,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457452006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:49:07,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:49:07,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:49:07,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015854549] [2024-10-13 16:49:07,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:49:07,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:49:07,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:49:07,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:49:07,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:49:07,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:49:07,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 111 transitions, 1042 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-10-13 16:49:07,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:49:07,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:49:07,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:49:09,895 INFO L124 PetriNetUnfolderBase]: 17290/26274 cut-off events. [2024-10-13 16:49:09,896 INFO L125 PetriNetUnfolderBase]: For 95451/95451 co-relation queries the response was YES. [2024-10-13 16:49:09,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93862 conditions, 26274 events. 17290/26274 cut-off events. For 95451/95451 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 189846 event pairs, 3441 based on Foata normal form. 402/26618 useless extension candidates. Maximal degree in co-relation 93838. Up to 13259 conditions per place. [2024-10-13 16:49:10,101 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 195 selfloop transitions, 37 changer transitions 0/241 dead transitions. [2024-10-13 16:49:10,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 241 transitions, 2527 flow [2024-10-13 16:49:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:49:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:49:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2024-10-13 16:49:10,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5254237288135594 [2024-10-13 16:49:10,103 INFO L175 Difference]: Start difference. First operand has 88 places, 111 transitions, 1042 flow. Second operand 7 states and 217 transitions. [2024-10-13 16:49:10,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 241 transitions, 2527 flow [2024-10-13 16:49:10,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 241 transitions, 2309 flow, removed 57 selfloop flow, removed 8 redundant places. [2024-10-13 16:49:10,294 INFO L231 Difference]: Finished difference. Result has 89 places, 131 transitions, 1396 flow [2024-10-13 16:49:10,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1396, PETRI_PLACES=89, PETRI_TRANSITIONS=131} [2024-10-13 16:49:10,294 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 23 predicate places. [2024-10-13 16:49:10,294 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 131 transitions, 1396 flow [2024-10-13 16:49:10,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-10-13 16:49:10,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:49:10,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:49:10,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 16:49:10,295 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:49:10,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:49:10,296 INFO L85 PathProgramCache]: Analyzing trace with hash 378811866, now seen corresponding path program 1 times [2024-10-13 16:49:10,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:49:10,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467194096] [2024-10-13 16:49:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:49:10,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:49:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:49:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:49:10,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:49:10,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467194096] [2024-10-13 16:49:10,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467194096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:49:10,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:49:10,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:49:10,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814057960] [2024-10-13 16:49:10,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:49:10,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:49:10,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:49:10,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:49:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:49:10,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:49:10,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 131 transitions, 1396 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-10-13 16:49:10,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:49:10,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:49:10,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:49:12,318 INFO L124 PetriNetUnfolderBase]: 16128/24125 cut-off events. [2024-10-13 16:49:12,318 INFO L125 PetriNetUnfolderBase]: For 75935/75935 co-relation queries the response was YES. [2024-10-13 16:49:12,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84320 conditions, 24125 events. 16128/24125 cut-off events. For 75935/75935 co-relation queries the response was YES. Maximal size of possible extension queue 1156. Compared 166625 event pairs, 2967 based on Foata normal form. 100/24133 useless extension candidates. Maximal degree in co-relation 84297. Up to 11558 conditions per place. [2024-10-13 16:49:12,506 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 200 selfloop transitions, 44 changer transitions 0/253 dead transitions. [2024-10-13 16:49:12,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 253 transitions, 2840 flow [2024-10-13 16:49:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:49:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:49:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2024-10-13 16:49:12,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5012106537530266 [2024-10-13 16:49:12,507 INFO L175 Difference]: Start difference. First operand has 89 places, 131 transitions, 1396 flow. Second operand 7 states and 207 transitions. [2024-10-13 16:49:12,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 253 transitions, 2840 flow [2024-10-13 16:49:12,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 253 transitions, 2578 flow, removed 84 selfloop flow, removed 7 redundant places. [2024-10-13 16:49:12,883 INFO L231 Difference]: Finished difference. Result has 86 places, 151 transitions, 1694 flow [2024-10-13 16:49:12,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=1153, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1694, PETRI_PLACES=86, PETRI_TRANSITIONS=151} [2024-10-13 16:49:12,884 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 20 predicate places. [2024-10-13 16:49:12,884 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 151 transitions, 1694 flow [2024-10-13 16:49:12,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-10-13 16:49:12,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:49:12,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:49:12,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 16:49:12,888 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:49:12,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:49:12,888 INFO L85 PathProgramCache]: Analyzing trace with hash -349321042, now seen corresponding path program 1 times [2024-10-13 16:49:12,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:49:12,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686118974] [2024-10-13 16:49:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:49:12,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:49:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:49:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:49:12,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:49:12,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686118974] [2024-10-13 16:49:12,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686118974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:49:12,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:49:12,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:49:12,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614173597] [2024-10-13 16:49:12,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:49:12,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:49:12,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:49:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:49:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:49:12,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:49:12,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 151 transitions, 1694 flow. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2024-10-13 16:49:12,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:49:12,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:49:12,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:49:14,295 INFO L124 PetriNetUnfolderBase]: 12422/18177 cut-off events. [2024-10-13 16:49:14,295 INFO L125 PetriNetUnfolderBase]: For 64226/64226 co-relation queries the response was YES. [2024-10-13 16:49:14,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60170 conditions, 18177 events. 12422/18177 cut-off events. For 64226/64226 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 114956 event pairs, 780 based on Foata normal form. 1282/19373 useless extension candidates. Maximal degree in co-relation 60149. Up to 6465 conditions per place. [2024-10-13 16:49:14,388 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 131 selfloop transitions, 20 changer transitions 4/164 dead transitions. [2024-10-13 16:49:14,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 164 transitions, 1350 flow [2024-10-13 16:49:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:49:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:49:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2024-10-13 16:49:14,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5282485875706214 [2024-10-13 16:49:14,390 INFO L175 Difference]: Start difference. First operand has 86 places, 151 transitions, 1694 flow. Second operand 6 states and 187 transitions. [2024-10-13 16:49:14,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 164 transitions, 1350 flow [2024-10-13 16:49:14,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 164 transitions, 1344 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:49:14,412 INFO L231 Difference]: Finished difference. Result has 90 places, 83 transitions, 738 flow [2024-10-13 16:49:14,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=738, PETRI_PLACES=90, PETRI_TRANSITIONS=83} [2024-10-13 16:49:14,412 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 24 predicate places. [2024-10-13 16:49:14,413 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 83 transitions, 738 flow [2024-10-13 16:49:14,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) [2024-10-13 16:49:14,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:49:14,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:49:14,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 16:49:14,413 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-10-13 16:49:14,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:49:14,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2114737866, now seen corresponding path program 1 times [2024-10-13 16:49:14,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:49:14,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830016818] [2024-10-13 16:49:14,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:49:14,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:49:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:49:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:49:14,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:49:14,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830016818] [2024-10-13 16:49:14,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830016818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:49:14,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:49:14,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:49:14,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877294824] [2024-10-13 16:49:14,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:49:14,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:49:14,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:49:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:49:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:49:14,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 59 [2024-10-13 16:49:14,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 83 transitions, 738 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-10-13 16:49:14,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:49:14,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 59 [2024-10-13 16:49:14,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:49:15,658 INFO L124 PetriNetUnfolderBase]: 11202/16449 cut-off events. [2024-10-13 16:49:15,658 INFO L125 PetriNetUnfolderBase]: For 46171/46171 co-relation queries the response was YES. [2024-10-13 16:49:15,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57902 conditions, 16449 events. 11202/16449 cut-off events. For 46171/46171 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 104936 event pairs, 520 based on Foata normal form. 324/16687 useless extension candidates. Maximal degree in co-relation 57880. Up to 6465 conditions per place. [2024-10-13 16:49:15,717 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2024-10-13 16:49:15,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 144 transitions, 1052 flow [2024-10-13 16:49:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:49:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:49:15,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2024-10-13 16:49:15,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4648910411622276 [2024-10-13 16:49:15,718 INFO L175 Difference]: Start difference. First operand has 90 places, 83 transitions, 738 flow. Second operand 7 states and 192 transitions. [2024-10-13 16:49:15,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 144 transitions, 1052 flow [2024-10-13 16:49:15,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 144 transitions, 920 flow, removed 8 selfloop flow, removed 12 redundant places. [2024-10-13 16:49:15,853 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-10-13 16:49:15,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-10-13 16:49:15,853 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 10 predicate places. [2024-10-13 16:49:15,853 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-10-13 16:49:15,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-10-13 16:49:15,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 36 remaining) [2024-10-13 16:49:15,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 36 remaining) [2024-10-13 16:49:15,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 36 remaining) [2024-10-13 16:49:15,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 36 remaining) [2024-10-13 16:49:15,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 36 remaining) [2024-10-13 16:49:15,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 36 remaining) [2024-10-13 16:49:15,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 36 remaining) [2024-10-13 16:49:15,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 36 remaining) [2024-10-13 16:49:15,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 36 remaining) [2024-10-13 16:49:15,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 36 remaining) [2024-10-13 16:49:15,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 36 remaining) [2024-10-13 16:49:15,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 36 remaining) [2024-10-13 16:49:15,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 36 remaining) [2024-10-13 16:49:15,859 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 36 remaining) [2024-10-13 16:49:15,859 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 36 remaining) [2024-10-13 16:49:15,859 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2024-10-13 16:49:15,859 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 36 remaining) [2024-10-13 16:49:15,859 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 36 remaining) [2024-10-13 16:49:15,859 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 36 remaining) [2024-10-13 16:49:15,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 36 remaining) [2024-10-13 16:49:15,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 36 remaining) [2024-10-13 16:49:15,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 36 remaining) [2024-10-13 16:49:15,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 36 remaining) [2024-10-13 16:49:15,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 36 remaining) [2024-10-13 16:49:15,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 36 remaining) [2024-10-13 16:49:15,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 36 remaining) [2024-10-13 16:49:15,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 36 remaining) [2024-10-13 16:49:15,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 36 remaining) [2024-10-13 16:49:15,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 36 remaining) [2024-10-13 16:49:15,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 36 remaining) [2024-10-13 16:49:15,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 36 remaining) [2024-10-13 16:49:15,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 36 remaining) [2024-10-13 16:49:15,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 36 remaining) [2024-10-13 16:49:15,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 36 remaining) [2024-10-13 16:49:15,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 36 remaining) [2024-10-13 16:49:15,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 36 remaining) [2024-10-13 16:49:15,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 16:49:15,862 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:49:15,867 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 16:49:15,867 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 16:49:15,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:49:15 BasicIcfg [2024-10-13 16:49:15,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 16:49:15,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:49:15,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:49:15,873 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:49:15,873 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:48:39" (3/4) ... [2024-10-13 16:49:15,874 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 16:49:15,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 16:49:15,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 16:49:15,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-13 16:49:15,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2024-10-13 16:49:15,881 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2024-10-13 16:49:15,881 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-13 16:49:15,881 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-13 16:49:15,882 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 16:49:15,949 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:49:15,949 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 16:49:15,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:49:15,950 INFO L158 Benchmark]: Toolchain (without parser) took 37144.52ms. Allocated memory was 121.6MB in the beginning and 14.9GB in the end (delta: 14.8GB). Free memory was 70.9MB in the beginning and 12.4GB in the end (delta: -12.3GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2024-10-13 16:49:15,950 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 121.6MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:49:15,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.56ms. Allocated memory is still 121.6MB. Free memory was 70.6MB in the beginning and 57.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 16:49:15,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.93ms. Allocated memory is still 121.6MB. Free memory was 57.3MB in the beginning and 55.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:49:15,951 INFO L158 Benchmark]: Boogie Preprocessor took 42.55ms. Allocated memory is still 121.6MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:49:15,951 INFO L158 Benchmark]: RCFGBuilder took 680.88ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 52.9MB in the beginning and 86.4MB in the end (delta: -33.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-10-13 16:49:15,951 INFO L158 Benchmark]: TraceAbstraction took 36039.93ms. Allocated memory was 159.4MB in the beginning and 14.9GB in the end (delta: 14.8GB). Free memory was 85.3MB in the beginning and 12.4GB in the end (delta: -12.3GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2024-10-13 16:49:15,952 INFO L158 Benchmark]: Witness Printer took 77.21ms. Allocated memory is still 14.9GB. Free memory was 12.4GB in the beginning and 12.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 16:49:15,953 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95ms. Allocated memory is still 121.6MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.56ms. Allocated memory is still 121.6MB. Free memory was 70.6MB in the beginning and 57.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.93ms. Allocated memory is still 121.6MB. Free memory was 57.3MB in the beginning and 55.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.55ms. Allocated memory is still 121.6MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 680.88ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 52.9MB in the beginning and 86.4MB in the end (delta: -33.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 36039.93ms. Allocated memory was 159.4MB in the beginning and 14.9GB in the end (delta: 14.8GB). Free memory was 85.3MB in the beginning and 12.4GB in the end (delta: -12.3GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 77.21ms. Allocated memory is still 14.9GB. Free memory was 12.4GB in the beginning and 12.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 109 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 35.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 34.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 975 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 975 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 197 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2591 IncrementalHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 197 mSolverCounterUnsat, 0 mSDtfsCounter, 2591 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1694occurred in iteration=12, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 16:49:15,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE