./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i -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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:38:19,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:38:19,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:38:19,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:38:19,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:38:19,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:38:19,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:38:19,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:38:19,869 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:38:19,871 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:38:19,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:38:19,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:38:19,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:38:19,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:38:19,873 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:38:19,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:38:19,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:38:19,874 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:38:19,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:38:19,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:38:19,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:38:19,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:38:19,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:38:19,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:38:19,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:38:19,877 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:38:19,877 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:38:19,877 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:38:19,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:38:19,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:38:19,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:38:19,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:38:19,878 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:38:19,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:38:19,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:38:19,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:38:19,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:38:19,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:38:19,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:38:19,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:38:19,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:38:19,879 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:38:19,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:38:19,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:38:19,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2024-11-12 20:38:20,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:38:20,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:38:20,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:38:20,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:38:20,104 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:38:20,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-11-12 20:38:21,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:38:21,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:38:21,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-11-12 20:38:21,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75276a52c/36be5e2d6aab4a378ec302a85886d8b1/FLAGa95aa3f46 [2024-11-12 20:38:21,844 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75276a52c/36be5e2d6aab4a378ec302a85886d8b1 [2024-11-12 20:38:21,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:38:21,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:38:21,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:38:21,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:38:21,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:38:21,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:38:21" (1/1) ... [2024-11-12 20:38:21,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7546415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:21, skipping insertion in model container [2024-11-12 20:38:21,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:38:21" (1/1) ... [2024-11-12 20:38:21,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:38:22,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:38:22,313 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:38:22,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:38:22,401 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:38:22,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22 WrapperNode [2024-11-12 20:38:22,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:38:22,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:38:22,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:38:22,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:38:22,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,445 INFO L138 Inliner]: procedures = 271, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-11-12 20:38:22,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:38:22,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:38:22,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:38:22,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:38:22,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,472 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-11-12 20:38:22,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:38:22,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:38:22,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:38:22,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:38:22,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (1/1) ... [2024-11-12 20:38:22,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:38:22,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:38:22,520 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) [2024-11-12 20:38:22,528 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 [2024-11-12 20:38:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 20:38:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 20:38:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 20:38:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 20:38:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:38:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 20:38:22,566 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 20:38:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:38:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 20:38:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 20:38:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 20:38:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:38:22,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:38:22,567 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:38:22,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:38:22,690 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:38:22,948 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:38:22,949 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:38:23,266 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:38:23,266 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-12 20:38:23,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:38:23 BoogieIcfgContainer [2024-11-12 20:38:23,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:38:23,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:38:23,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:38:23,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:38:23,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:38:21" (1/3) ... [2024-11-12 20:38:23,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e4beb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:38:23, skipping insertion in model container [2024-11-12 20:38:23,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:22" (2/3) ... [2024-11-12 20:38:23,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e4beb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:38:23, skipping insertion in model container [2024-11-12 20:38:23,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:38:23" (3/3) ... [2024-11-12 20:38:23,275 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2024-11-12 20:38:23,288 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:38:23,288 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-12 20:38:23,288 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:38:23,324 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 20:38:23,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 71 transitions, 149 flow [2024-11-12 20:38:23,388 INFO L124 PetriNetUnfolderBase]: 17/97 cut-off events. [2024-11-12 20:38:23,389 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 20:38:23,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 17/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 297 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2024-11-12 20:38:23,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 71 transitions, 149 flow [2024-11-12 20:38:23,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 70 transitions, 147 flow [2024-11-12 20:38:23,407 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:38:23,412 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;@280d7d47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:38:23,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-12 20:38:23,417 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:38:23,417 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-12 20:38:23,418 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:38:23,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:23,418 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 20:38:23,419 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-12 20:38:23,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:23,424 INFO L85 PathProgramCache]: Analyzing trace with hash 473941688, now seen corresponding path program 1 times [2024-11-12 20:38:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:23,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40768837] [2024-11-12 20:38:23,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:23,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:23,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:23,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40768837] [2024-11-12 20:38:23,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40768837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:23,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:23,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:23,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920234652] [2024-11-12 20:38:23,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:23,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:23,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:23,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:23,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:23,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 71 [2024-11-12 20:38:23,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:23,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:23,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 71 [2024-11-12 20:38:23,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:23,955 INFO L124 PetriNetUnfolderBase]: 157/480 cut-off events. [2024-11-12 20:38:23,955 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 20:38:23,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 480 events. 157/480 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2570 event pairs, 18 based on Foata normal form. 72/463 useless extension candidates. Maximal degree in co-relation 752. Up to 259 conditions per place. [2024-11-12 20:38:23,962 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 47 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-11-12 20:38:23,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 83 transitions, 273 flow [2024-11-12 20:38:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-11-12 20:38:23,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.721830985915493 [2024-11-12 20:38:23,972 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 147 flow. Second operand 4 states and 205 transitions. [2024-11-12 20:38:23,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 83 transitions, 273 flow [2024-11-12 20:38:23,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:38:23,978 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 137 flow [2024-11-12 20:38:23,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-11-12 20:38:23,982 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-11-12 20:38:23,982 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 137 flow [2024-11-12 20:38:23,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:23,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:23,982 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:23,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:38:23,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-12 20:38:23,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:23,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1639792467, now seen corresponding path program 1 times [2024-11-12 20:38:23,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:23,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625068438] [2024-11-12 20:38:23,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:23,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:24,026 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:38:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:24,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:38:24,066 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:38:24,067 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-12 20:38:24,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-12 20:38:24,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-12 20:38:24,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-12 20:38:24,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-12 20:38:24,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-12 20:38:24,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2024-11-12 20:38:24,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2024-11-12 20:38:24,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2024-11-12 20:38:24,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-12 20:38:24,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-12 20:38:24,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-12 20:38:24,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-12 20:38:24,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-12 20:38:24,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-12 20:38:24,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:38:24,071 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 20:38:24,073 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 20:38:24,073 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 20:38:24,091 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 20:38:24,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 104 transitions, 224 flow [2024-11-12 20:38:24,105 INFO L124 PetriNetUnfolderBase]: 30/175 cut-off events. [2024-11-12 20:38:24,105 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 20:38:24,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 175 events. 30/175 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 669 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 105. Up to 9 conditions per place. [2024-11-12 20:38:24,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 104 transitions, 224 flow [2024-11-12 20:38:24,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 104 transitions, 224 flow [2024-11-12 20:38:24,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:38:24,109 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;@280d7d47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:38:24,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-12 20:38:24,111 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:38:24,112 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-12 20:38:24,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:38:24,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:24,112 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 20:38:24,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-12 20:38:24,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:24,113 INFO L85 PathProgramCache]: Analyzing trace with hash 573219199, now seen corresponding path program 1 times [2024-11-12 20:38:24,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:24,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101664825] [2024-11-12 20:38:24,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:24,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:24,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101664825] [2024-11-12 20:38:24,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101664825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:24,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:24,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:24,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134347518] [2024-11-12 20:38:24,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:24,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:24,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:24,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:24,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:24,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-12 20:38:24,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 104 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:24,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:24,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-12 20:38:24,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:25,064 INFO L124 PetriNetUnfolderBase]: 4719/10013 cut-off events. [2024-11-12 20:38:25,065 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-12 20:38:25,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17194 conditions, 10013 events. 4719/10013 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 86022 event pairs, 1952 based on Foata normal form. 1711/10430 useless extension candidates. Maximal degree in co-relation 1373. Up to 7077 conditions per place. [2024-11-12 20:38:25,123 INFO L140 encePairwiseOnDemand]: 84/104 looper letters, 65 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2024-11-12 20:38:25,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 115 transitions, 382 flow [2024-11-12 20:38:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2024-11-12 20:38:25,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6850961538461539 [2024-11-12 20:38:25,127 INFO L175 Difference]: Start difference. First operand has 90 places, 104 transitions, 224 flow. Second operand 4 states and 285 transitions. [2024-11-12 20:38:25,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 115 transitions, 382 flow [2024-11-12 20:38:25,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 115 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:38:25,133 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 220 flow [2024-11-12 20:38:25,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-11-12 20:38:25,134 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-12 20:38:25,134 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 220 flow [2024-11-12 20:38:25,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:25,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:25,135 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:25,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:38:25,135 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-12 20:38:25,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:25,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1572315270, now seen corresponding path program 1 times [2024-11-12 20:38:25,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:25,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305923553] [2024-11-12 20:38:25,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:25,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:25,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305923553] [2024-11-12 20:38:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305923553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:25,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:25,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:25,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813573613] [2024-11-12 20:38:25,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:25,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:38:25,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:25,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:38:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:38:25,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-12 20:38:25,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:25,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:25,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-12 20:38:25,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:25,961 INFO L124 PetriNetUnfolderBase]: 3957/8829 cut-off events. [2024-11-12 20:38:25,961 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2024-11-12 20:38:25,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15420 conditions, 8829 events. 3957/8829 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 76560 event pairs, 252 based on Foata normal form. 144/7721 useless extension candidates. Maximal degree in co-relation 1279. Up to 3893 conditions per place. [2024-11-12 20:38:26,001 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 105 selfloop transitions, 6 changer transitions 0/158 dead transitions. [2024-11-12 20:38:26,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 158 transitions, 572 flow [2024-11-12 20:38:26,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:38:26,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:38:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-11-12 20:38:26,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6314102564102564 [2024-11-12 20:38:26,004 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 220 flow. Second operand 6 states and 394 transitions. [2024-11-12 20:38:26,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 158 transitions, 572 flow [2024-11-12 20:38:26,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 158 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:38:26,007 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 226 flow [2024-11-12 20:38:26,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-12 20:38:26,008 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2024-11-12 20:38:26,008 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 226 flow [2024-11-12 20:38:26,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:26,008 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:26,008 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:26,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:38:26,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-12 20:38:26,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:26,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1572264391, now seen corresponding path program 1 times [2024-11-12 20:38:26,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:26,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539206178] [2024-11-12 20:38:26,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:26,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:26,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:26,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539206178] [2024-11-12 20:38:26,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539206178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:26,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:26,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:26,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513708199] [2024-11-12 20:38:26,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:26,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:38:26,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:26,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:38:26,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:38:26,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-12 20:38:26,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:26,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:26,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-12 20:38:26,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:26,809 INFO L124 PetriNetUnfolderBase]: 3854/8342 cut-off events. [2024-11-12 20:38:26,809 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-11-12 20:38:26,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15215 conditions, 8342 events. 3854/8342 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 70523 event pairs, 265 based on Foata normal form. 12/7318 useless extension candidates. Maximal degree in co-relation 1237. Up to 4558 conditions per place. [2024-11-12 20:38:26,840 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 86 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-11-12 20:38:26,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 137 transitions, 498 flow [2024-11-12 20:38:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:38:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:38:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2024-11-12 20:38:26,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6269230769230769 [2024-11-12 20:38:26,842 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 226 flow. Second operand 5 states and 326 transitions. [2024-11-12 20:38:26,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 137 transitions, 498 flow [2024-11-12 20:38:26,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 137 transitions, 486 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-12 20:38:26,849 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 226 flow [2024-11-12 20:38:26,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-11-12 20:38:26,851 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2024-11-12 20:38:26,851 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 226 flow [2024-11-12 20:38:26,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:26,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:26,852 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:26,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:38:26,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-12 20:38:26,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1721456828, now seen corresponding path program 1 times [2024-11-12 20:38:26,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:26,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478322321] [2024-11-12 20:38:26,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:26,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:26,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:26,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:26,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478322321] [2024-11-12 20:38:26,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478322321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:26,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:26,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:26,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253494543] [2024-11-12 20:38:26,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:26,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:26,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:26,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:26,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:26,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2024-11-12 20:38:26,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:26,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:26,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2024-11-12 20:38:26,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:27,701 INFO L124 PetriNetUnfolderBase]: 6093/12379 cut-off events. [2024-11-12 20:38:27,701 INFO L125 PetriNetUnfolderBase]: For 1677/1838 co-relation queries the response was YES. [2024-11-12 20:38:27,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22648 conditions, 12379 events. 6093/12379 cut-off events. For 1677/1838 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 106500 event pairs, 1497 based on Foata normal form. 215/11306 useless extension candidates. Maximal degree in co-relation 18878. Up to 6273 conditions per place. [2024-11-12 20:38:27,767 INFO L140 encePairwiseOnDemand]: 95/104 looper letters, 122 selfloop transitions, 12 changer transitions 0/182 dead transitions. [2024-11-12 20:38:27,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 182 transitions, 740 flow [2024-11-12 20:38:27,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:38:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:38:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2024-11-12 20:38:27,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2024-11-12 20:38:27,768 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 226 flow. Second operand 5 states and 375 transitions. [2024-11-12 20:38:27,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 182 transitions, 740 flow [2024-11-12 20:38:27,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 182 transitions, 722 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 20:38:27,775 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 312 flow [2024-11-12 20:38:27,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2024-11-12 20:38:27,775 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 13 predicate places. [2024-11-12 20:38:27,776 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 312 flow [2024-11-12 20:38:27,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:27,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:27,776 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:38:27,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:38:27,776 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-12 20:38:27,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1497133687, now seen corresponding path program 1 times [2024-11-12 20:38:27,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:27,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949025713] [2024-11-12 20:38:27,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:27,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:27,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:27,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949025713] [2024-11-12 20:38:27,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949025713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:27,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:27,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:38:27,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870733756] [2024-11-12 20:38:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:27,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:27,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:27,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-12 20:38:27,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:27,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:27,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-12 20:38:27,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:28,583 INFO L124 PetriNetUnfolderBase]: 5231/11685 cut-off events. [2024-11-12 20:38:28,584 INFO L125 PetriNetUnfolderBase]: For 3631/3636 co-relation queries the response was YES. [2024-11-12 20:38:28,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23034 conditions, 11685 events. 5231/11685 cut-off events. For 3631/3636 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 104845 event pairs, 553 based on Foata normal form. 160/10361 useless extension candidates. Maximal degree in co-relation 19904. Up to 6842 conditions per place. [2024-11-12 20:38:28,641 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 103 selfloop transitions, 6 changer transitions 0/156 dead transitions. [2024-11-12 20:38:28,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 156 transitions, 700 flow [2024-11-12 20:38:28,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-12 20:38:28,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6610576923076923 [2024-11-12 20:38:28,643 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 312 flow. Second operand 4 states and 275 transitions. [2024-11-12 20:38:28,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 156 transitions, 700 flow [2024-11-12 20:38:28,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 156 transitions, 696 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-12 20:38:28,655 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 324 flow [2024-11-12 20:38:28,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-11-12 20:38:28,656 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2024-11-12 20:38:28,657 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 324 flow [2024-11-12 20:38:28,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:28,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:28,657 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-12 20:38:28,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 20:38:28,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-12 20:38:28,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -68551092, now seen corresponding path program 1 times [2024-11-12 20:38:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:28,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822266446] [2024-11-12 20:38:28,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:28,693 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:38:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:28,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:38:28,715 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:38:28,716 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-12 20:38:28,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-12 20:38:28,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-12 20:38:28,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-12 20:38:28,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-12 20:38:28,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-12 20:38:28,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-12 20:38:28,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-12 20:38:28,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-12 20:38:28,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-12 20:38:28,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-12 20:38:28,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-12 20:38:28,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-12 20:38:28,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-12 20:38:28,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-12 20:38:28,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-12 20:38:28,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-12 20:38:28,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-12 20:38:28,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-12 20:38:28,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 20:38:28,722 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-12 20:38:28,722 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 20:38:28,723 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 20:38:28,749 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 20:38:28,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 137 transitions, 301 flow [2024-11-12 20:38:28,784 INFO L124 PetriNetUnfolderBase]: 46/272 cut-off events. [2024-11-12 20:38:28,784 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-12 20:38:28,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 272 events. 46/272 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1133 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-11-12 20:38:28,786 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 137 transitions, 301 flow [2024-11-12 20:38:28,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 137 transitions, 301 flow [2024-11-12 20:38:28,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:38:28,792 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;@280d7d47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:38:28,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-12 20:38:28,798 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:38:28,798 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-12 20:38:28,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:38:28,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:28,798 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 20:38:28,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-12 20:38:28,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash 703988775, now seen corresponding path program 1 times [2024-11-12 20:38:28,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:28,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759330565] [2024-11-12 20:38:28,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:28,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:28,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:28,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759330565] [2024-11-12 20:38:28,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759330565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:28,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:28,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693895287] [2024-11-12 20:38:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:28,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:28,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-11-12 20:38:28,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 137 transitions, 301 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:28,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:28,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-11-12 20:38:28,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:38,452 INFO L124 PetriNetUnfolderBase]: 87851/154955 cut-off events. [2024-11-12 20:38:38,453 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2024-11-12 20:38:38,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275078 conditions, 154955 events. 87851/154955 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 3672. Compared 1613217 event pairs, 52468 based on Foata normal form. 31160/170369 useless extension candidates. Maximal degree in co-relation 17993. Up to 118961 conditions per place. [2024-11-12 20:38:39,398 INFO L140 encePairwiseOnDemand]: 111/137 looper letters, 78 selfloop transitions, 3 changer transitions 0/142 dead transitions. [2024-11-12 20:38:39,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 142 transitions, 473 flow [2024-11-12 20:38:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2024-11-12 20:38:39,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.656934306569343 [2024-11-12 20:38:39,401 INFO L175 Difference]: Start difference. First operand has 118 places, 137 transitions, 301 flow. Second operand 4 states and 360 transitions. [2024-11-12 20:38:39,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 142 transitions, 473 flow [2024-11-12 20:38:39,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 142 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:38:39,403 INFO L231 Difference]: Finished difference. Result has 123 places, 119 transitions, 285 flow [2024-11-12 20:38:39,404 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=123, PETRI_TRANSITIONS=119} [2024-11-12 20:38:39,404 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-11-12 20:38:39,404 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 119 transitions, 285 flow [2024-11-12 20:38:39,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:39,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:39,405 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:39,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 20:38:39,405 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-12 20:38:39,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash -567080570, now seen corresponding path program 1 times [2024-11-12 20:38:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757373406] [2024-11-12 20:38:39,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:39,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:39,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757373406] [2024-11-12 20:38:39,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757373406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:39,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:39,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:39,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322701305] [2024-11-12 20:38:39,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:39,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:38:39,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:39,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:38:39,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:38:39,480 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-11-12 20:38:39,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 119 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:39,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:39,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-11-12 20:38:39,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:47,754 INFO L124 PetriNetUnfolderBase]: 71934/132764 cut-off events. [2024-11-12 20:38:47,754 INFO L125 PetriNetUnfolderBase]: For 8821/8821 co-relation queries the response was YES. [2024-11-12 20:38:48,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237382 conditions, 132764 events. 71934/132764 cut-off events. For 8821/8821 co-relation queries the response was YES. Maximal size of possible extension queue 3023. Compared 1424016 event pairs, 7896 based on Foata normal form. 1872/118549 useless extension candidates. Maximal degree in co-relation 20101. Up to 63134 conditions per place. [2024-11-12 20:38:48,731 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 140 selfloop transitions, 6 changer transitions 0/207 dead transitions. [2024-11-12 20:38:48,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 207 transitions, 751 flow [2024-11-12 20:38:48,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:38:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:38:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2024-11-12 20:38:48,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6240875912408759 [2024-11-12 20:38:48,733 INFO L175 Difference]: Start difference. First operand has 123 places, 119 transitions, 285 flow. Second operand 6 states and 513 transitions. [2024-11-12 20:38:48,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 207 transitions, 751 flow [2024-11-12 20:38:48,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 207 transitions, 749 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:38:48,737 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 291 flow [2024-11-12 20:38:48,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2024-11-12 20:38:48,738 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-11-12 20:38:48,738 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 291 flow [2024-11-12 20:38:48,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:48,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:48,739 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:48,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 20:38:48,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-12 20:38:48,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash -567161240, now seen corresponding path program 1 times [2024-11-12 20:38:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:48,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489381008] [2024-11-12 20:38:48,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:48,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:48,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:48,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489381008] [2024-11-12 20:38:48,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489381008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:48,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:48,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:48,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942334319] [2024-11-12 20:38:48,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:48,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:38:48,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:48,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:38:48,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:38:48,801 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-11-12 20:38:48,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:48,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:48,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-11-12 20:38:48,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:57,837 INFO L124 PetriNetUnfolderBase]: 80183/142079 cut-off events. [2024-11-12 20:38:57,837 INFO L125 PetriNetUnfolderBase]: For 19464/19464 co-relation queries the response was YES. [2024-11-12 20:38:58,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264403 conditions, 142079 events. 80183/142079 cut-off events. For 19464/19464 co-relation queries the response was YES. Maximal size of possible extension queue 3374. Compared 1474723 event pairs, 22689 based on Foata normal form. 12/130339 useless extension candidates. Maximal degree in co-relation 17412. Up to 106855 conditions per place. [2024-11-12 20:38:58,605 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 102 selfloop transitions, 4 changer transitions 0/167 dead transitions. [2024-11-12 20:38:58,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 167 transitions, 611 flow [2024-11-12 20:38:58,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:38:58,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:38:58,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 412 transitions. [2024-11-12 20:38:58,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6014598540145986 [2024-11-12 20:38:58,607 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 291 flow. Second operand 5 states and 412 transitions. [2024-11-12 20:38:58,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 167 transitions, 611 flow [2024-11-12 20:38:58,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 167 transitions, 597 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-12 20:38:58,617 INFO L231 Difference]: Finished difference. Result has 127 places, 119 transitions, 299 flow [2024-11-12 20:38:58,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=299, PETRI_PLACES=127, PETRI_TRANSITIONS=119} [2024-11-12 20:38:58,617 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 9 predicate places. [2024-11-12 20:38:58,618 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 119 transitions, 299 flow [2024-11-12 20:38:58,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:58,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:58,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:58,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 20:38:58,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-12 20:38:58,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 606858843, now seen corresponding path program 1 times [2024-11-12 20:38:58,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:58,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723140421] [2024-11-12 20:38:58,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:58,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:58,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:58,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723140421] [2024-11-12 20:38:58,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723140421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:58,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:58,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848407760] [2024-11-12 20:38:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:58,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:58,671 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 137 [2024-11-12 20:38:58,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:58,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:58,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 137 [2024-11-12 20:38:58,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand