./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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/weaver/chl-node-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:08:53,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:08:53,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:08:53,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:08:53,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:08:53,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:08:53,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:08:53,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:08:53,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:08:53,734 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:08:53,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:08:53,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:08:53,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:08:53,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:08:53,736 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:08:53,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:08:53,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:08:53,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:08:53,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:08:53,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:08:53,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:08:53,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:08:53,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:08:53,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:08:53,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:08:53,742 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:08:53,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:08:53,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:08:53,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:08:53,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:08:53,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:08:53,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:08:53,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:08:53,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:08:53,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:08:53,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:08:53,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:08:53,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:08:53,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:08:53,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:08:53,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:08:53,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:08:53,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:08:53,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:08:53,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2024-11-09 15:08:54,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:08:54,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:08:54,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:08:54,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:08:54,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:08:54,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-09 15:08:55,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:08:55,685 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:08:55,688 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-09 15:08:55,696 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d7f648a2/05f13e06837248efa197fe0ac6aee68e/FLAG7f66b8fa3 [2024-11-09 15:08:55,708 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d7f648a2/05f13e06837248efa197fe0ac6aee68e [2024-11-09 15:08:55,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:08:55,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:08:55,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:08:55,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:08:55,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:08:55,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:08:55" (1/1) ... [2024-11-09 15:08:55,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64075a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:55, skipping insertion in model container [2024-11-09 15:08:55,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:08:55" (1/1) ... [2024-11-09 15:08:55,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:08:56,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:08:56,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:08:56,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:08:56,106 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:08:56,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56 WrapperNode [2024-11-09 15:08:56,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:08:56,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:08:56,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:08:56,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:08:56,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,166 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 492 [2024-11-09 15:08:56,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:08:56,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:08:56,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:08:56,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:08:56,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,216 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 9, 15]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-11-09 15:08:56,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:08:56,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:08:56,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:08:56,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:08:56,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (1/1) ... [2024-11-09 15:08:56,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:08:56,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:08:56,298 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) [2024-11-09 15:08:56,302 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 [2024-11-09 15:08:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:08:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:08:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:08:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:08:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:08:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:08:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:08:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:08:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:08:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:08:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:08:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:08:56,387 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:08:56,554 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:08:56,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:08:57,271 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:08:57,271 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:08:57,798 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:08:57,799 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-09 15:08:57,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:08:57 BoogieIcfgContainer [2024-11-09 15:08:57,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:08:57,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:08:57,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:08:57,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:08:57,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:08:55" (1/3) ... [2024-11-09 15:08:57,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5684f8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:08:57, skipping insertion in model container [2024-11-09 15:08:57,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:56" (2/3) ... [2024-11-09 15:08:57,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5684f8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:08:57, skipping insertion in model container [2024-11-09 15:08:57,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:08:57" (3/3) ... [2024-11-09 15:08:57,811 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2024-11-09 15:08:57,831 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:08:57,832 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-09 15:08:57,832 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:08:57,936 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:08:57,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2024-11-09 15:08:58,033 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2024-11-09 15:08:58,034 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:08:58,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 404 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-11-09 15:08:58,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2024-11-09 15:08:58,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2024-11-09 15:08:58,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:08:58,066 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;@2f90d7b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:08:58,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-09 15:08:58,069 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:08:58,069 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-09 15:08:58,069 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:08:58,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:58,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-09 15:08:58,070 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:08:58,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 46888, now seen corresponding path program 1 times [2024-11-09 15:08:58,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:58,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813458465] [2024-11-09 15:08:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:58,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:58,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813458465] [2024-11-09 15:08:58,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813458465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:58,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:08:58,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040924921] [2024-11-09 15:08:58,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:58,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:08:58,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:08:58,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:08:58,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:08:58,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-09 15:08:58,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:58,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:08:58,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:59,572 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2024-11-09 15:08:59,573 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-11-09 15:08:59,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65987 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2024-11-09 15:08:59,650 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2024-11-09 15:08:59,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2024-11-09 15:08:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:08:59,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:08:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-09 15:08:59,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-09 15:08:59,671 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2024-11-09 15:08:59,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2024-11-09 15:08:59,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 15:08:59,684 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2024-11-09 15:08:59,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-11-09 15:08:59,692 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-11-09 15:08:59,692 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2024-11-09 15:08:59,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-09 15:08:59,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:59,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:08:59,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:08:59,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:08:59,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:59,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1455072, now seen corresponding path program 1 times [2024-11-09 15:08:59,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:59,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559224947] [2024-11-09 15:08:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:59,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:59,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:59,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559224947] [2024-11-09 15:08:59,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559224947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:59,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:59,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:08:59,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677081944] [2024-11-09 15:08:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:59,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:08:59,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:59,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:08:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:08:59,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:08:59,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-09 15:08:59,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:59,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:08:59,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:00,690 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2024-11-09 15:09:00,691 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-09 15:09:00,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66088 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2024-11-09 15:09:00,755 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-09 15:09:00,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2024-11-09 15:09:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:09:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:09:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-09 15:09:00,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-09 15:09:00,761 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2024-11-09 15:09:00,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2024-11-09 15:09:00,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:00,765 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2024-11-09 15:09:00,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2024-11-09 15:09:00,767 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2024-11-09 15:09:00,767 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2024-11-09 15:09:00,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-09 15:09:00,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:00,768 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:09:00,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:09:00,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:00,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:00,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373587, now seen corresponding path program 1 times [2024-11-09 15:09:00,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:00,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284336186] [2024-11-09 15:09:00,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:00,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:00,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:00,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284336186] [2024-11-09 15:09:00,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284336186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:00,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:00,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:00,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987374573] [2024-11-09 15:09:00,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:00,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:00,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:00,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:00,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:00,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:00,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-09 15:09:00,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:00,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:00,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:01,987 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2024-11-09 15:09:01,987 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-09 15:09:02,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66179 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2024-11-09 15:09:02,041 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2024-11-09 15:09:02,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2024-11-09 15:09:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-09 15:09:02,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-09 15:09:02,045 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2024-11-09 15:09:02,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2024-11-09 15:09:02,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:02,050 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2024-11-09 15:09:02,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-11-09 15:09:02,051 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-11-09 15:09:02,052 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2024-11-09 15:09:02,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-09 15:09:02,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:02,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:09:02,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:09:02,054 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:02,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:02,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373678, now seen corresponding path program 1 times [2024-11-09 15:09:02,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:02,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454701926] [2024-11-09 15:09:02,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:02,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:02,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:02,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454701926] [2024-11-09 15:09:02,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454701926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:02,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:02,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:09:02,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522851721] [2024-11-09 15:09:02,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:02,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:09:02,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:02,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:09:02,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:09:02,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:02,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-09 15:09:02,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:02,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:02,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:03,012 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2024-11-09 15:09:03,012 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-09 15:09:03,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66112 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2024-11-09 15:09:03,056 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-11-09 15:09:03,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2024-11-09 15:09:03,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:09:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:09:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-09 15:09:03,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-09 15:09:03,058 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2024-11-09 15:09:03,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2024-11-09 15:09:03,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:03,063 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2024-11-09 15:09:03,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-11-09 15:09:03,065 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-09 15:09:03,065 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2024-11-09 15:09:03,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-09 15:09:03,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:03,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:09:03,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:09:03,067 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:03,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:03,068 INFO L85 PathProgramCache]: Analyzing trace with hash 399912571, now seen corresponding path program 1 times [2024-11-09 15:09:03,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:03,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546716262] [2024-11-09 15:09:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:03,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:03,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:03,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546716262] [2024-11-09 15:09:03,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546716262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:03,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:03,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:09:03,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400471168] [2024-11-09 15:09:03,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:03,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:09:03,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:03,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:09:03,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:09:03,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:03,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-09 15:09:03,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:03,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:03,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:03,848 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2024-11-09 15:09:03,848 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-09 15:09:03,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66163 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2024-11-09 15:09:03,894 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2024-11-09 15:09:03,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2024-11-09 15:09:03,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:09:03,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:09:03,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-09 15:09:03,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-09 15:09:03,896 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2024-11-09 15:09:03,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2024-11-09 15:09:03,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:03,899 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2024-11-09 15:09:03,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-11-09 15:09:03,900 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-11-09 15:09:03,900 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2024-11-09 15:09:03,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-09 15:09:03,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:03,901 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:03,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:09:03,902 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:03,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:03,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2061233645, now seen corresponding path program 1 times [2024-11-09 15:09:03,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:03,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387433551] [2024-11-09 15:09:03,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:03,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:03,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:03,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387433551] [2024-11-09 15:09:03,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387433551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:03,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175589360] [2024-11-09 15:09:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:03,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:03,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:03,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:03,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:09:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:04,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:09:04,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:04,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:09:04,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175589360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:04,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:09:04,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:09:04,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113496859] [2024-11-09 15:09:04,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:04,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:09:04,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:04,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:09:04,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:09:04,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:04,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-09 15:09:04,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:04,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:04,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:05,129 INFO L124 PetriNetUnfolderBase]: 4140/8022 cut-off events. [2024-11-09 15:09:05,129 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-09 15:09:05,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13706 conditions, 8022 events. 4140/8022 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65806 event pairs, 2736 based on Foata normal form. 3/6399 useless extension candidates. Maximal degree in co-relation 13695. Up to 5497 conditions per place. [2024-11-09 15:09:05,192 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/133 dead transitions. [2024-11-09 15:09:05,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 133 transitions, 475 flow [2024-11-09 15:09:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:09:05,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:09:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-09 15:09:05,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-09 15:09:05,195 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 6 states and 507 transitions. [2024-11-09 15:09:05,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 133 transitions, 475 flow [2024-11-09 15:09:05,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 133 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:05,199 INFO L231 Difference]: Finished difference. Result has 127 places, 133 transitions, 372 flow [2024-11-09 15:09:05,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=127, PETRI_TRANSITIONS=133} [2024-11-09 15:09:05,202 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-09 15:09:05,203 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 133 transitions, 372 flow [2024-11-09 15:09:05,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-09 15:09:05,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:05,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:05,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:09:05,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 15:09:05,408 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:05,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:05,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2063938383, now seen corresponding path program 1 times [2024-11-09 15:09:05,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:05,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604798806] [2024-11-09 15:09:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:05,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:05,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:05,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604798806] [2024-11-09 15:09:05,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604798806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:05,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:05,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:09:05,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958987831] [2024-11-09 15:09:05,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:05,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:09:05,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:05,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:09:05,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:09:05,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:05,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 133 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-09 15:09:05,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:05,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:05,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:06,145 INFO L124 PetriNetUnfolderBase]: 4140/8020 cut-off events. [2024-11-09 15:09:06,145 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-09 15:09:06,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 8020 events. 4140/8020 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65808 event pairs, 2736 based on Foata normal form. 2/6400 useless extension candidates. Maximal degree in co-relation 13713. Up to 5513 conditions per place. [2024-11-09 15:09:06,199 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-09 15:09:06,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 510 flow [2024-11-09 15:09:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:09:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:09:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-09 15:09:06,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-09 15:09:06,201 INFO L175 Difference]: Start difference. First operand has 127 places, 133 transitions, 372 flow. Second operand 3 states and 286 transitions. [2024-11-09 15:09:06,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 510 flow [2024-11-09 15:09:06,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 465 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:06,205 INFO L231 Difference]: Finished difference. Result has 123 places, 131 transitions, 325 flow [2024-11-09 15:09:06,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=123, PETRI_TRANSITIONS=131} [2024-11-09 15:09:06,206 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -7 predicate places. [2024-11-09 15:09:06,206 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 131 transitions, 325 flow [2024-11-09 15:09:06,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-09 15:09:06,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:06,207 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:09:06,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:09:06,207 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:06,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:06,208 INFO L85 PathProgramCache]: Analyzing trace with hash -526264928, now seen corresponding path program 1 times [2024-11-09 15:09:06,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:06,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563841968] [2024-11-09 15:09:06,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:06,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:06,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:06,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563841968] [2024-11-09 15:09:06,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563841968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:06,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719120292] [2024-11-09 15:09:06,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:06,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:06,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:06,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:06,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:09:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:06,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:09:06,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:06,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:09:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:06,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719120292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:09:06,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:09:06,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:09:06,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250695181] [2024-11-09 15:09:06,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:09:06,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:09:06,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:06,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:09:06,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:09:06,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:06,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 131 transitions, 325 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-09 15:09:06,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:06,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:06,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:07,395 INFO L124 PetriNetUnfolderBase]: 4149/8056 cut-off events. [2024-11-09 15:09:07,395 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-11-09 15:09:07,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13791 conditions, 8056 events. 4149/8056 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65984 event pairs, 2736 based on Foata normal form. 9/6435 useless extension candidates. Maximal degree in co-relation 13780. Up to 5518 conditions per place. [2024-11-09 15:09:07,443 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/158 dead transitions. [2024-11-09 15:09:07,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 158 transitions, 640 flow [2024-11-09 15:09:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:09:07,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:09:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-09 15:09:07,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-09 15:09:07,446 INFO L175 Difference]: Start difference. First operand has 123 places, 131 transitions, 325 flow. Second operand 10 states and 828 transitions. [2024-11-09 15:09:07,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 158 transitions, 640 flow [2024-11-09 15:09:07,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 158 transitions, 639 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:07,450 INFO L231 Difference]: Finished difference. Result has 134 places, 158 transitions, 573 flow [2024-11-09 15:09:07,450 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=573, PETRI_PLACES=134, PETRI_TRANSITIONS=158} [2024-11-09 15:09:07,451 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-09 15:09:07,451 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 158 transitions, 573 flow [2024-11-09 15:09:07,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-09 15:09:07,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:07,452 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:07,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:09:07,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 15:09:07,653 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:07,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:07,653 INFO L85 PathProgramCache]: Analyzing trace with hash -442418035, now seen corresponding path program 1 times [2024-11-09 15:09:07,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:07,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593204936] [2024-11-09 15:09:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:07,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:07,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:07,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593204936] [2024-11-09 15:09:07,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593204936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:07,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:07,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:09:07,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601160383] [2024-11-09 15:09:07,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:07,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:09:07,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:07,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:09:07,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:09:07,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:07,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 158 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-09 15:09:07,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:07,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:07,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:08,226 INFO L124 PetriNetUnfolderBase]: 4149/8054 cut-off events. [2024-11-09 15:09:08,226 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-09 15:09:08,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13855 conditions, 8054 events. 4149/8054 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65915 event pairs, 2736 based on Foata normal form. 1/6434 useless extension candidates. Maximal degree in co-relation 13841. Up to 5538 conditions per place. [2024-11-09 15:09:08,262 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 95 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2024-11-09 15:09:08,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 156 transitions, 761 flow [2024-11-09 15:09:08,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:09:08,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:09:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-09 15:09:08,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-09 15:09:08,264 INFO L175 Difference]: Start difference. First operand has 134 places, 158 transitions, 573 flow. Second operand 3 states and 284 transitions. [2024-11-09 15:09:08,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 156 transitions, 761 flow [2024-11-09 15:09:08,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 156 transitions, 728 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:08,267 INFO L231 Difference]: Finished difference. Result has 132 places, 156 transitions, 538 flow [2024-11-09 15:09:08,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=132, PETRI_TRANSITIONS=156} [2024-11-09 15:09:08,268 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-11-09 15:09:08,268 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 156 transitions, 538 flow [2024-11-09 15:09:08,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-09 15:09:08,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:08,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:08,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:09:08,269 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:08,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:08,269 INFO L85 PathProgramCache]: Analyzing trace with hash 577326466, now seen corresponding path program 1 times [2024-11-09 15:09:08,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:08,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474632841] [2024-11-09 15:09:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:08,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:08,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:08,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474632841] [2024-11-09 15:09:08,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474632841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:08,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:08,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:08,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863639832] [2024-11-09 15:09:08,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:08,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:08,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:08,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:08,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:08,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 156 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-09 15:09:08,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:08,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:08,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:08,894 INFO L124 PetriNetUnfolderBase]: 4152/8066 cut-off events. [2024-11-09 15:09:08,894 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-09 15:09:08,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13869 conditions, 8066 events. 4152/8066 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66051 event pairs, 2736 based on Foata normal form. 3/6445 useless extension candidates. Maximal degree in co-relation 13853. Up to 5548 conditions per place. [2024-11-09 15:09:08,945 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2024-11-09 15:09:08,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 778 flow [2024-11-09 15:09:08,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-09 15:09:08,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-09 15:09:08,949 INFO L175 Difference]: Start difference. First operand has 132 places, 156 transitions, 538 flow. Second operand 4 states and 369 transitions. [2024-11-09 15:09:08,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 165 transitions, 778 flow [2024-11-09 15:09:08,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:08,956 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2024-11-09 15:09:08,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-11-09 15:09:08,958 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-11-09 15:09:08,958 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2024-11-09 15:09:08,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-09 15:09:08,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:08,958 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:08,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:09:08,959 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:08,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2085231517, now seen corresponding path program 1 times [2024-11-09 15:09:08,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:08,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417621309] [2024-11-09 15:09:08,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:08,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:09:09,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:09,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417621309] [2024-11-09 15:09:09,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417621309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:09,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:09,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:09,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511093773] [2024-11-09 15:09:09,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:09,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:09,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:09,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:09,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:09,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:09,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-09 15:09:09,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:09,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:09,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:09,622 INFO L124 PetriNetUnfolderBase]: 4151/8065 cut-off events. [2024-11-09 15:09:09,623 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-09 15:09:09,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 8065 events. 4151/8065 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66014 event pairs, 2736 based on Foata normal form. 1/6448 useless extension candidates. Maximal degree in co-relation 13880. Up to 5544 conditions per place. [2024-11-09 15:09:09,662 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2024-11-09 15:09:09,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2024-11-09 15:09:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:09,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-09 15:09:09,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-09 15:09:09,664 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2024-11-09 15:09:09,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2024-11-09 15:09:09,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:09,668 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2024-11-09 15:09:09,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-11-09 15:09:09,669 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-11-09 15:09:09,669 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2024-11-09 15:09:09,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-09 15:09:09,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:09,669 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2024-11-09 15:09:09,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 15:09:09,670 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:09,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1543471110, now seen corresponding path program 2 times [2024-11-09 15:09:09,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:09,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631385620] [2024-11-09 15:09:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:09,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:09,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:09,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631385620] [2024-11-09 15:09:09,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631385620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:09,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691249817] [2024-11-09 15:09:09,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:09:09,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:09,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:09,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:09,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:09:09,924 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:09:09,924 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:09:09,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:09:09,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:09:09,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:09:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:09:10,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691249817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:09:10,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:09:10,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2024-11-09 15:09:10,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362870886] [2024-11-09 15:09:10,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:09:10,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 15:09:10,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:10,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 15:09:10,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 15:09:10,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:10,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 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) [2024-11-09 15:09:10,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:10,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:10,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:10,886 INFO L124 PetriNetUnfolderBase]: 4154/8074 cut-off events. [2024-11-09 15:09:10,886 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-11-09 15:09:10,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13919 conditions, 8074 events. 4154/8074 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66126 event pairs, 2736 based on Foata normal form. 6/6459 useless extension candidates. Maximal degree in co-relation 13900. Up to 5517 conditions per place. [2024-11-09 15:09:10,914 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 57 selfloop transitions, 56 changer transitions 0/170 dead transitions. [2024-11-09 15:09:10,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 170 transitions, 870 flow [2024-11-09 15:09:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:09:10,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:09:10,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1118 transitions. [2024-11-09 15:09:10,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5704081632653061 [2024-11-09 15:09:10,918 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 14 states and 1118 transitions. [2024-11-09 15:09:10,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 170 transitions, 870 flow [2024-11-09 15:09:10,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 170 transitions, 830 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 15:09:10,922 INFO L231 Difference]: Finished difference. Result has 142 places, 170 transitions, 716 flow [2024-11-09 15:09:10,922 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=716, PETRI_PLACES=142, PETRI_TRANSITIONS=170} [2024-11-09 15:09:10,923 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-09 15:09:10,923 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 170 transitions, 716 flow [2024-11-09 15:09:10,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 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) [2024-11-09 15:09:10,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:10,924 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:10,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:09:11,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:11,129 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:11,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:11,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2147071415, now seen corresponding path program 1 times [2024-11-09 15:09:11,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:11,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229989474] [2024-11-09 15:09:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:11,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:11,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:11,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229989474] [2024-11-09 15:09:11,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229989474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:11,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:11,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169787035] [2024-11-09 15:09:11,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:11,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:11,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:11,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:11,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:11,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:11,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 170 transitions, 716 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-09 15:09:11,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:11,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:11,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:11,856 INFO L124 PetriNetUnfolderBase]: 4153/8073 cut-off events. [2024-11-09 15:09:11,857 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-11-09 15:09:11,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13947 conditions, 8073 events. 4153/8073 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66036 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13933. Up to 5552 conditions per place. [2024-11-09 15:09:11,898 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 109 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2024-11-09 15:09:11,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 169 transitions, 934 flow [2024-11-09 15:09:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:11,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-09 15:09:11,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-09 15:09:11,900 INFO L175 Difference]: Start difference. First operand has 142 places, 170 transitions, 716 flow. Second operand 4 states and 359 transitions. [2024-11-09 15:09:11,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 169 transitions, 934 flow [2024-11-09 15:09:11,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 169 transitions, 727 flow, removed 18 selfloop flow, removed 12 redundant places. [2024-11-09 15:09:11,904 INFO L231 Difference]: Finished difference. Result has 133 places, 169 transitions, 509 flow [2024-11-09 15:09:11,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=133, PETRI_TRANSITIONS=169} [2024-11-09 15:09:11,905 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-09 15:09:11,905 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 169 transitions, 509 flow [2024-11-09 15:09:11,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-09 15:09:11,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:11,906 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:11,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:09:11,906 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:11,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:11,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1056073208, now seen corresponding path program 1 times [2024-11-09 15:09:11,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:11,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664963450] [2024-11-09 15:09:11,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:11,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:09:12,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:12,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664963450] [2024-11-09 15:09:12,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664963450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:12,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:12,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:12,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100638006] [2024-11-09 15:09:12,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:12,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:12,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:12,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:12,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:12,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 169 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-09 15:09:12,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:12,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:12,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:12,649 INFO L124 PetriNetUnfolderBase]: 4152/8072 cut-off events. [2024-11-09 15:09:12,649 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-09 15:09:12,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13843 conditions, 8072 events. 4152/8072 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66042 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13829. Up to 5551 conditions per place. [2024-11-09 15:09:12,687 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 108 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2024-11-09 15:09:12,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 728 flow [2024-11-09 15:09:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:12,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-09 15:09:12,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-09 15:09:12,689 INFO L175 Difference]: Start difference. First operand has 133 places, 169 transitions, 509 flow. Second operand 4 states and 359 transitions. [2024-11-09 15:09:12,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 728 flow [2024-11-09 15:09:12,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:12,692 INFO L231 Difference]: Finished difference. Result has 134 places, 168 transitions, 508 flow [2024-11-09 15:09:12,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=508, PETRI_PLACES=134, PETRI_TRANSITIONS=168} [2024-11-09 15:09:12,693 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-09 15:09:12,693 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 168 transitions, 508 flow [2024-11-09 15:09:12,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-09 15:09:12,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:12,694 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:12,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 15:09:12,694 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:12,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:12,694 INFO L85 PathProgramCache]: Analyzing trace with hash -852712849, now seen corresponding path program 1 times [2024-11-09 15:09:12,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:12,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193706780] [2024-11-09 15:09:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:12,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:12,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:12,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193706780] [2024-11-09 15:09:12,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193706780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:12,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109425763] [2024-11-09 15:09:12,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:12,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:12,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:12,834 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:12,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:09:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:12,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:09:12,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:12,998 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:09:12,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109425763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:12,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:09:12,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:09:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99107561] [2024-11-09 15:09:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:13,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:09:13,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:13,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:09:13,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:09:13,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:13,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 168 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-09 15:09:13,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:13,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:13,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:13,825 INFO L124 PetriNetUnfolderBase]: 4152/8069 cut-off events. [2024-11-09 15:09:13,825 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-09 15:09:13,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13841 conditions, 8069 events. 4152/8069 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65975 event pairs, 2736 based on Foata normal form. 3/6439 useless extension candidates. Maximal degree in co-relation 13827. Up to 5539 conditions per place. [2024-11-09 15:09:13,866 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 93 selfloop transitions, 21 changer transitions 0/165 dead transitions. [2024-11-09 15:09:13,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 724 flow [2024-11-09 15:09:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:09:13,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:09:13,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-09 15:09:13,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-09 15:09:13,868 INFO L175 Difference]: Start difference. First operand has 134 places, 168 transitions, 508 flow. Second operand 6 states and 507 transitions. [2024-11-09 15:09:13,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 724 flow [2024-11-09 15:09:13,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:13,872 INFO L231 Difference]: Finished difference. Result has 134 places, 165 transitions, 534 flow [2024-11-09 15:09:13,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=134, PETRI_TRANSITIONS=165} [2024-11-09 15:09:13,873 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-09 15:09:13,873 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 165 transitions, 534 flow [2024-11-09 15:09:13,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-09 15:09:13,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:13,874 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:13,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 15:09:14,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 15:09:14,074 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:14,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:14,075 INFO L85 PathProgramCache]: Analyzing trace with hash -664292993, now seen corresponding path program 1 times [2024-11-09 15:09:14,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:14,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813800458] [2024-11-09 15:09:14,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:14,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:14,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813800458] [2024-11-09 15:09:14,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813800458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153964129] [2024-11-09 15:09:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:14,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:14,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:14,200 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:14,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:09:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:14,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:09:14,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:14,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:09:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:14,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153964129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:09:14,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:09:14,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:09:14,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280220996] [2024-11-09 15:09:14,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:09:14,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:09:14,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:14,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:09:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:09:14,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:14,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 534 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-09 15:09:14,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:14,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:14,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:15,011 INFO L124 PetriNetUnfolderBase]: 4161/8105 cut-off events. [2024-11-09 15:09:15,012 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-09 15:09:15,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13977 conditions, 8105 events. 4161/8105 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66343 event pairs, 2736 based on Foata normal form. 9/6475 useless extension candidates. Maximal degree in co-relation 13964. Up to 5560 conditions per place. [2024-11-09 15:09:15,048 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 102 selfloop transitions, 39 changer transitions 0/192 dead transitions. [2024-11-09 15:09:15,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 192 transitions, 978 flow [2024-11-09 15:09:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:09:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:09:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-09 15:09:15,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-09 15:09:15,050 INFO L175 Difference]: Start difference. First operand has 134 places, 165 transitions, 534 flow. Second operand 10 states and 828 transitions. [2024-11-09 15:09:15,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 192 transitions, 978 flow [2024-11-09 15:09:15,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 192 transitions, 888 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:15,054 INFO L231 Difference]: Finished difference. Result has 142 places, 192 transitions, 738 flow [2024-11-09 15:09:15,054 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=738, PETRI_PLACES=142, PETRI_TRANSITIONS=192} [2024-11-09 15:09:15,054 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-09 15:09:15,054 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 192 transitions, 738 flow [2024-11-09 15:09:15,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-09 15:09:15,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:15,055 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:15,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 15:09:15,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 15:09:15,256 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:15,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:15,256 INFO L85 PathProgramCache]: Analyzing trace with hash -90376987, now seen corresponding path program 1 times [2024-11-09 15:09:15,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:15,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510186413] [2024-11-09 15:09:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:15,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:15,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:15,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510186413] [2024-11-09 15:09:15,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510186413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:15,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:15,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:15,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731278202] [2024-11-09 15:09:15,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:15,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:15,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:15,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:15,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:15,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:09:15,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 192 transitions, 738 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 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) [2024-11-09 15:09:15,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:15,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:09:15,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:16,159 INFO L124 PetriNetUnfolderBase]: 8090/14045 cut-off events. [2024-11-09 15:09:16,160 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2024-11-09 15:09:16,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25316 conditions, 14045 events. 8090/14045 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 112659 event pairs, 2643 based on Foata normal form. 364/11809 useless extension candidates. Maximal degree in co-relation 25301. Up to 5122 conditions per place. [2024-11-09 15:09:16,243 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 188 selfloop transitions, 5 changer transitions 0/241 dead transitions. [2024-11-09 15:09:16,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 241 transitions, 1228 flow [2024-11-09 15:09:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:16,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2024-11-09 15:09:16,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-09 15:09:16,245 INFO L175 Difference]: Start difference. First operand has 142 places, 192 transitions, 738 flow. Second operand 4 states and 406 transitions. [2024-11-09 15:09:16,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 241 transitions, 1228 flow [2024-11-09 15:09:16,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 241 transitions, 1195 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:16,250 INFO L231 Difference]: Finished difference. Result has 145 places, 194 transitions, 739 flow [2024-11-09 15:09:16,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=145, PETRI_TRANSITIONS=194} [2024-11-09 15:09:16,251 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 15 predicate places. [2024-11-09 15:09:16,251 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 194 transitions, 739 flow [2024-11-09 15:09:16,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 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) [2024-11-09 15:09:16,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:16,252 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:16,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 15:09:16,252 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:16,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:16,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1493282289, now seen corresponding path program 1 times [2024-11-09 15:09:16,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:16,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239927254] [2024-11-09 15:09:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:16,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:16,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:16,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239927254] [2024-11-09 15:09:16,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239927254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:16,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:16,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:16,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982365212] [2024-11-09 15:09:16,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:16,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:16,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:16,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:16,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 194 transitions, 739 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-09 15:09:16,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:16,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:16,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:17,127 INFO L124 PetriNetUnfolderBase]: 5006/10058 cut-off events. [2024-11-09 15:09:17,127 INFO L125 PetriNetUnfolderBase]: For 1840/2112 co-relation queries the response was YES. [2024-11-09 15:09:17,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18439 conditions, 10058 events. 5006/10058 cut-off events. For 1840/2112 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 87873 event pairs, 3370 based on Foata normal form. 138/8312 useless extension candidates. Maximal degree in co-relation 18421. Up to 6715 conditions per place. [2024-11-09 15:09:17,164 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 136 selfloop transitions, 3 changer transitions 0/193 dead transitions. [2024-11-09 15:09:17,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 193 transitions, 1013 flow [2024-11-09 15:09:17,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-09 15:09:17,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-09 15:09:17,166 INFO L175 Difference]: Start difference. First operand has 145 places, 194 transitions, 739 flow. Second operand 4 states and 359 transitions. [2024-11-09 15:09:17,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 193 transitions, 1013 flow [2024-11-09 15:09:17,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 193 transitions, 1013 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:09:17,179 INFO L231 Difference]: Finished difference. Result has 148 places, 193 transitions, 741 flow [2024-11-09 15:09:17,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=741, PETRI_PLACES=148, PETRI_TRANSITIONS=193} [2024-11-09 15:09:17,180 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 18 predicate places. [2024-11-09 15:09:17,180 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 193 transitions, 741 flow [2024-11-09 15:09:17,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-09 15:09:17,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:17,180 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:17,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 15:09:17,181 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:17,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:17,181 INFO L85 PathProgramCache]: Analyzing trace with hash -174152482, now seen corresponding path program 2 times [2024-11-09 15:09:17,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:17,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748780413] [2024-11-09 15:09:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 15:09:17,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:17,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748780413] [2024-11-09 15:09:17,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748780413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326511987] [2024-11-09 15:09:17,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:09:17,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:17,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:17,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:17,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:09:17,536 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:09:17,537 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:09:17,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:09:17,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 15:09:17,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:09:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 15:09:17,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326511987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:09:17,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:09:17,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2024-11-09 15:09:17,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966977445] [2024-11-09 15:09:17,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:09:17,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:09:17,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:17,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:09:17,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:09:17,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 140 [2024-11-09 15:09:17,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 193 transitions, 741 flow. Second operand has 12 states, 12 states have (on average 65.08333333333333) internal successors, (781), 12 states have internal predecessors, (781), 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) [2024-11-09 15:09:17,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:17,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 140 [2024-11-09 15:09:17,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:19,522 INFO L124 PetriNetUnfolderBase]: 10002/20069 cut-off events. [2024-11-09 15:09:19,522 INFO L125 PetriNetUnfolderBase]: For 3679/4224 co-relation queries the response was YES. [2024-11-09 15:09:19,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36730 conditions, 20069 events. 10002/20069 cut-off events. For 3679/4224 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 194062 event pairs, 6740 based on Foata normal form. 281/16745 useless extension candidates. Maximal degree in co-relation 36710. Up to 6679 conditions per place. [2024-11-09 15:09:19,662 INFO L140 encePairwiseOnDemand]: 120/140 looper letters, 159 selfloop transitions, 89 changer transitions 0/299 dead transitions. [2024-11-09 15:09:19,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 299 transitions, 1655 flow [2024-11-09 15:09:19,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:09:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:09:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 994 transitions. [2024-11-09 15:09:19,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571 [2024-11-09 15:09:19,665 INFO L175 Difference]: Start difference. First operand has 148 places, 193 transitions, 741 flow. Second operand 14 states and 994 transitions. [2024-11-09 15:09:19,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 299 transitions, 1655 flow [2024-11-09 15:09:19,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 299 transitions, 1597 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-09 15:09:19,675 INFO L231 Difference]: Finished difference. Result has 152 places, 226 transitions, 1045 flow [2024-11-09 15:09:19,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1045, PETRI_PLACES=152, PETRI_TRANSITIONS=226} [2024-11-09 15:09:19,676 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 22 predicate places. [2024-11-09 15:09:19,676 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 226 transitions, 1045 flow [2024-11-09 15:09:19,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.08333333333333) internal successors, (781), 12 states have internal predecessors, (781), 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) [2024-11-09 15:09:19,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:19,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:19,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:09:19,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:19,881 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:19,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash 251158034, now seen corresponding path program 1 times [2024-11-09 15:09:19,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:19,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064293273] [2024-11-09 15:09:19,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:09:20,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064293273] [2024-11-09 15:09:20,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064293273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:20,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:20,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:20,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432125056] [2024-11-09 15:09:20,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:20,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:20,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:20,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:20,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:20,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:20,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 226 transitions, 1045 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-09 15:09:20,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:20,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:20,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:21,358 INFO L124 PetriNetUnfolderBase]: 10000/20067 cut-off events. [2024-11-09 15:09:21,359 INFO L125 PetriNetUnfolderBase]: For 3702/4246 co-relation queries the response was YES. [2024-11-09 15:09:21,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36778 conditions, 20067 events. 10000/20067 cut-off events. For 3702/4246 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 194041 event pairs, 6740 based on Foata normal form. 274/16563 useless extension candidates. Maximal degree in co-relation 36762. Up to 13398 conditions per place. [2024-11-09 15:09:21,522 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 168 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2024-11-09 15:09:21,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 224 transitions, 1379 flow [2024-11-09 15:09:21,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-09 15:09:21,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-09 15:09:21,524 INFO L175 Difference]: Start difference. First operand has 152 places, 226 transitions, 1045 flow. Second operand 4 states and 359 transitions. [2024-11-09 15:09:21,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 224 transitions, 1379 flow [2024-11-09 15:09:21,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 224 transitions, 1376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:21,534 INFO L231 Difference]: Finished difference. Result has 153 places, 224 transitions, 1040 flow [2024-11-09 15:09:21,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1040, PETRI_PLACES=153, PETRI_TRANSITIONS=224} [2024-11-09 15:09:21,535 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 23 predicate places. [2024-11-09 15:09:21,535 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 224 transitions, 1040 flow [2024-11-09 15:09:21,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-09 15:09:21,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:21,536 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:21,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 15:09:21,536 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:21,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1363619158, now seen corresponding path program 1 times [2024-11-09 15:09:21,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:21,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310110961] [2024-11-09 15:09:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:21,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 15:09:21,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:21,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310110961] [2024-11-09 15:09:21,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310110961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:21,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:21,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504992116] [2024-11-09 15:09:21,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:21,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:21,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:21,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-09 15:09:21,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 224 transitions, 1040 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-09 15:09:21,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:21,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-09 15:09:21,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:23,100 INFO L124 PetriNetUnfolderBase]: 9998/20065 cut-off events. [2024-11-09 15:09:23,100 INFO L125 PetriNetUnfolderBase]: For 3711/4255 co-relation queries the response was YES. [2024-11-09 15:09:23,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36774 conditions, 20065 events. 9998/20065 cut-off events. For 3711/4255 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 193874 event pairs, 6740 based on Foata normal form. 274/16563 useless extension candidates. Maximal degree in co-relation 36757. Up to 13396 conditions per place. [2024-11-09 15:09:23,216 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 166 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2024-11-09 15:09:23,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 222 transitions, 1370 flow [2024-11-09 15:09:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-09 15:09:23,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-09 15:09:23,218 INFO L175 Difference]: Start difference. First operand has 153 places, 224 transitions, 1040 flow. Second operand 4 states and 359 transitions. [2024-11-09 15:09:23,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 222 transitions, 1370 flow [2024-11-09 15:09:23,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 222 transitions, 1364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:23,229 INFO L231 Difference]: Finished difference. Result has 154 places, 222 transitions, 1032 flow [2024-11-09 15:09:23,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1032, PETRI_PLACES=154, PETRI_TRANSITIONS=222} [2024-11-09 15:09:23,230 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 24 predicate places. [2024-11-09 15:09:23,230 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 222 transitions, 1032 flow [2024-11-09 15:09:23,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-09 15:09:23,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:23,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:23,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 15:09:23,231 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:23,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:23,231 INFO L85 PathProgramCache]: Analyzing trace with hash -409634365, now seen corresponding path program 1 times [2024-11-09 15:09:23,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:23,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30022732] [2024-11-09 15:09:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:23,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:09:24,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:24,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30022732] [2024-11-09 15:09:24,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30022732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:24,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786726182] [2024-11-09 15:09:24,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:24,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:24,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:24,263 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:24,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:09:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:24,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 15:09:24,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:24,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 15:09:24,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 15:09:24,619 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 15:09:24,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 15:09:24,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 15:09:24,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 15:09:24,809 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:09:24,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:09:24,874 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 9223372039002259456)) is different from false [2024-11-09 15:09:25,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 15:09:25,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2024-11-09 15:09:25,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 15:09:25,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2024-11-09 15:09:25,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-11-09 15:09:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-09 15:09:25,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786726182] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:09:25,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:09:25,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-09 15:09:25,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157619927] [2024-11-09 15:09:25,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:09:25,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 15:09:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:25,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 15:09:25,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=251, Unknown=1, NotChecked=32, Total=342 [2024-11-09 15:09:25,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-09 15:09:25,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 222 transitions, 1032 flow. Second operand has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 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) [2024-11-09 15:09:25,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:25,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-09 15:09:25,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:30,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 15:09:41,856 INFO L124 PetriNetUnfolderBase]: 77802/118539 cut-off events. [2024-11-09 15:09:41,856 INFO L125 PetriNetUnfolderBase]: For 11861/12305 co-relation queries the response was YES. [2024-11-09 15:09:42,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241680 conditions, 118539 events. 77802/118539 cut-off events. For 11861/12305 co-relation queries the response was YES. Maximal size of possible extension queue 4973. Compared 1015611 event pairs, 17482 based on Foata normal form. 444/104181 useless extension candidates. Maximal degree in co-relation 241663. Up to 24786 conditions per place. [2024-11-09 15:09:42,771 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 523 selfloop transitions, 83 changer transitions 0/643 dead transitions. [2024-11-09 15:09:42,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 643 transitions, 4111 flow [2024-11-09 15:09:42,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 15:09:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-09 15:09:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1531 transitions. [2024-11-09 15:09:42,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49707792207792206 [2024-11-09 15:09:42,775 INFO L175 Difference]: Start difference. First operand has 154 places, 222 transitions, 1032 flow. Second operand 22 states and 1531 transitions. [2024-11-09 15:09:42,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 643 transitions, 4111 flow [2024-11-09 15:09:43,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 643 transitions, 4097 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:43,328 INFO L231 Difference]: Finished difference. Result has 178 places, 266 transitions, 1469 flow [2024-11-09 15:09:43,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1469, PETRI_PLACES=178, PETRI_TRANSITIONS=266} [2024-11-09 15:09:43,328 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 48 predicate places. [2024-11-09 15:09:43,328 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 266 transitions, 1469 flow [2024-11-09 15:09:43,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 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) [2024-11-09 15:09:43,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:43,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:43,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 15:09:43,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:43,530 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:09:43,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:43,531 INFO L85 PathProgramCache]: Analyzing trace with hash 186206391, now seen corresponding path program 1 times [2024-11-09 15:09:43,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:43,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911811079] [2024-11-09 15:09:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:43,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:09:44,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:44,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911811079] [2024-11-09 15:09:44,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911811079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:44,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316616820] [2024-11-09 15:09:44,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:44,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:44,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:44,310 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:09:44,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:09:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:44,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 15:09:44,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:44,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 15:09:44,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-09 15:09:44,749 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 15:09:44,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 15:09:44,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-09 15:09:45,123 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-09 15:09:45,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-11-09 15:09:45,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:09:45,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:09:45,221 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_416 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_416) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) is different from false [2024-11-09 15:09:45,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 15:09:45,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2024-11-09 15:09:45,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 15:09:45,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2024-11-09 15:09:45,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-11-09 15:09:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-09 15:09:45,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316616820] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:09:45,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:09:45,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-09 15:09:45,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600779628] [2024-11-09 15:09:45,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:09:45,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 15:09:45,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:45,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 15:09:45,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=382, Unknown=1, NotChecked=40, Total=506 [2024-11-09 15:09:45,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-09 15:09:45,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 266 transitions, 1469 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-09 15:09:45,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:45,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-09 15:09:45,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:52,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 15:10:03,992 INFO L124 PetriNetUnfolderBase]: 75286/115583 cut-off events. [2024-11-09 15:10:03,993 INFO L125 PetriNetUnfolderBase]: For 28009/28453 co-relation queries the response was YES. [2024-11-09 15:10:04,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244349 conditions, 115583 events. 75286/115583 cut-off events. For 28009/28453 co-relation queries the response was YES. Maximal size of possible extension queue 4870. Compared 998222 event pairs, 20066 based on Foata normal form. 1172/102345 useless extension candidates. Maximal degree in co-relation 244327. Up to 27956 conditions per place. [2024-11-09 15:10:05,060 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 512 selfloop transitions, 83 changer transitions 0/632 dead transitions. [2024-11-09 15:10:05,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 632 transitions, 4320 flow [2024-11-09 15:10:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 15:10:05,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-09 15:10:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1516 transitions. [2024-11-09 15:10:05,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4922077922077922 [2024-11-09 15:10:05,065 INFO L175 Difference]: Start difference. First operand has 178 places, 266 transitions, 1469 flow. Second operand 22 states and 1516 transitions. [2024-11-09 15:10:05,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 632 transitions, 4320 flow [2024-11-09 15:10:05,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 632 transitions, 4313 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:05,618 INFO L231 Difference]: Finished difference. Result has 198 places, 269 transitions, 1679 flow [2024-11-09 15:10:05,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1449, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1679, PETRI_PLACES=198, PETRI_TRANSITIONS=269} [2024-11-09 15:10:05,619 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 68 predicate places. [2024-11-09 15:10:05,619 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 269 transitions, 1679 flow [2024-11-09 15:10:05,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-09 15:10:05,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:05,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:05,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 15:10:05,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 15:10:05,821 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-09 15:10:05,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:05,822 INFO L85 PathProgramCache]: Analyzing trace with hash 623257027, now seen corresponding path program 1 times [2024-11-09 15:10:05,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:05,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753377027] [2024-11-09 15:10:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:05,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:05,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 15:10:05,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:05,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753377027] [2024-11-09 15:10:05,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753377027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:05,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:05,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:05,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807618849] [2024-11-09 15:10:05,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:05,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:05,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:05,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:05,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:05,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-09 15:10:05,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 269 transitions, 1679 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-09 15:10:05,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:05,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-09 15:10:05,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand