./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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-nzb-file-symm.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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:03:25,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:03:25,856 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:03:25,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:03:25,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:03:25,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:03:25,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:03:25,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:03:25,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:03:25,886 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:03:25,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:03:25,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:03:25,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:03:25,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:03:25,887 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:03:25,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:03:25,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:03:25,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:03:25,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:03:25,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:03:25,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:03:25,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:03:25,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:03:25,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:03:25,890 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:03:25,890 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:03:25,890 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:03:25,891 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:03:25,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:03:25,891 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:03:25,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:03:25,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:03:25,892 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:03:25,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:03:25,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:25,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:03:25,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:03:25,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:03:25,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:03:25,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:03:25,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:03:25,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:03:25,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:03:25,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:03:25,894 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2024-11-19 14:03:26,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:03:26,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:03:26,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:03:26,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:03:26,141 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:03:26,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-11-19 14:03:27,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:03:27,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:03:27,526 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-11-19 14:03:27,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a85ce252/bdeffeb9c4564c4bb2a291fcf2ceab6f/FLAG8f7c36aae [2024-11-19 14:03:27,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a85ce252/bdeffeb9c4564c4bb2a291fcf2ceab6f [2024-11-19 14:03:27,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:03:27,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:03:27,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:27,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:03:27,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:03:27,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e5f479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27, skipping insertion in model container [2024-11-19 14:03:27,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,585 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:03:27,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:27,791 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:03:27,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:27,837 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:03:27,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27 WrapperNode [2024-11-19 14:03:27,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:27,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:27,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:03:27,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:03:27,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,878 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 499 [2024-11-19 14:03:27,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:27,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:03:27,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:03:27,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:03:27,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,911 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-19 14:03:27,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:03:27,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:03:27,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:03:27,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:03:27,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (1/1) ... [2024-11-19 14:03:27,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:27,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:27,969 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) [2024-11-19 14:03:27,972 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 [2024-11-19 14:03:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:03:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:03:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:03:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:03:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:03:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:03:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:03:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:03:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:03:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:03:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:03:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:03:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:03:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:03:28,014 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:03:28,162 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:03:28,165 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:03:28,708 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:03:28,708 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:03:29,110 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:03:29,110 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 14:03:29,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:29 BoogieIcfgContainer [2024-11-19 14:03:29,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:03:29,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:03:29,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:03:29,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:03:29,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:03:27" (1/3) ... [2024-11-19 14:03:29,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4666e1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:29, skipping insertion in model container [2024-11-19 14:03:29,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:27" (2/3) ... [2024-11-19 14:03:29,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4666e1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:29, skipping insertion in model container [2024-11-19 14:03:29,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:29" (3/3) ... [2024-11-19 14:03:29,119 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2024-11-19 14:03:29,133 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:03:29,133 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-19 14:03:29,133 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:03:29,222 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 14:03:29,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 169 transitions, 352 flow [2024-11-19 14:03:29,297 INFO L124 PetriNetUnfolderBase]: 26/167 cut-off events. [2024-11-19 14:03:29,298 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 14:03:29,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 26/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 829 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2024-11-19 14:03:29,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 169 transitions, 352 flow [2024-11-19 14:03:29,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 166 transitions, 344 flow [2024-11-19 14:03:29,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:03:29,321 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;@be4ec9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:03:29,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-19 14:03:29,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:03:29,324 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 14:03:29,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:03:29,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:29,325 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:03:29,325 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:29,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:29,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1512952, now seen corresponding path program 1 times [2024-11-19 14:03:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824433426] [2024-11-19 14:03:29,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:29,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:29,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:29,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824433426] [2024-11-19 14:03:29,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824433426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:29,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:29,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:29,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800942429] [2024-11-19 14:03:29,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:29,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:29,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:29,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:29,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:29,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:29,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:29,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:29,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:30,293 INFO L124 PetriNetUnfolderBase]: 2890/6519 cut-off events. [2024-11-19 14:03:30,293 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-11-19 14:03:30,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10784 conditions, 6519 events. 2890/6519 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 58856 event pairs, 1812 based on Foata normal form. 4/5189 useless extension candidates. Maximal degree in co-relation 10584. Up to 4183 conditions per place. [2024-11-19 14:03:30,329 INFO L140 encePairwiseOnDemand]: 154/169 looper letters, 79 selfloop transitions, 7 changer transitions 2/168 dead transitions. [2024-11-19 14:03:30,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 168 transitions, 522 flow [2024-11-19 14:03:30,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-11-19 14:03:30,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2024-11-19 14:03:30,345 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 344 flow. Second operand 4 states and 427 transitions. [2024-11-19 14:03:30,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 168 transitions, 522 flow [2024-11-19 14:03:30,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 168 transitions, 514 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:30,356 INFO L231 Difference]: Finished difference. Result has 147 places, 166 transitions, 383 flow [2024-11-19 14:03:30,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=147, PETRI_TRANSITIONS=166} [2024-11-19 14:03:30,361 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-11-19 14:03:30,361 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 166 transitions, 383 flow [2024-11-19 14:03:30,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:30,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:30,362 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 14:03:30,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:03:30,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:30,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:30,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2124182453, now seen corresponding path program 1 times [2024-11-19 14:03:30,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:30,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489800064] [2024-11-19 14:03:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:30,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:30,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:30,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489800064] [2024-11-19 14:03:30,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489800064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:30,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255319909] [2024-11-19 14:03:30,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:30,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:30,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:30,510 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) [2024-11-19 14:03:30,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:03:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:30,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:30,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:30,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:03:30,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255319909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:30,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:03:30,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 14:03:30,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920424824] [2024-11-19 14:03:30,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:30,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:30,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:30,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:30,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:03:30,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:30,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:30,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:30,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:30,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:31,183 INFO L124 PetriNetUnfolderBase]: 2890/6515 cut-off events. [2024-11-19 14:03:31,184 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-19 14:03:31,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10750 conditions, 6515 events. 2890/6515 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 58786 event pairs, 1812 based on Foata normal form. 2/5186 useless extension candidates. Maximal degree in co-relation 10700. Up to 4172 conditions per place. [2024-11-19 14:03:31,212 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 72 selfloop transitions, 12 changer transitions 0/164 dead transitions. [2024-11-19 14:03:31,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 543 flow [2024-11-19 14:03:31,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2024-11-19 14:03:31,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5759368836291914 [2024-11-19 14:03:31,216 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 383 flow. Second operand 6 states and 584 transitions. [2024-11-19 14:03:31,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 543 flow [2024-11-19 14:03:31,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 164 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:03:31,222 INFO L231 Difference]: Finished difference. Result has 148 places, 164 transitions, 399 flow [2024-11-19 14:03:31,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=148, PETRI_TRANSITIONS=164} [2024-11-19 14:03:31,224 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2024-11-19 14:03:31,225 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 164 transitions, 399 flow [2024-11-19 14:03:31,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:31,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:31,226 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 14:03:31,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 14:03:31,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:31,427 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:31,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:31,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1425148113, now seen corresponding path program 1 times [2024-11-19 14:03:31,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:31,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953783359] [2024-11-19 14:03:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:31,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:31,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:31,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953783359] [2024-11-19 14:03:31,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953783359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:31,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958269100] [2024-11-19 14:03:31,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:31,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:31,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:31,495 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) [2024-11-19 14:03:31,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:03:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:31,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:31,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:31,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:31,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958269100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:31,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:31,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-19 14:03:31,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394123144] [2024-11-19 14:03:31,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:31,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:03:31,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:31,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:03:31,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:03:31,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:31,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 164 transitions, 399 flow. Second operand has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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) [2024-11-19 14:03:31,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:31,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:31,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:32,223 INFO L124 PetriNetUnfolderBase]: 2896/6539 cut-off events. [2024-11-19 14:03:32,223 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-19 14:03:32,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10844 conditions, 6539 events. 2896/6539 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 59093 event pairs, 1812 based on Foata normal form. 6/5213 useless extension candidates. Maximal degree in co-relation 10702. Up to 4183 conditions per place. [2024-11-19 14:03:32,256 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 77 selfloop transitions, 25 changer transitions 0/182 dead transitions. [2024-11-19 14:03:32,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 182 transitions, 717 flow [2024-11-19 14:03:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:03:32,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:03:32,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 938 transitions. [2024-11-19 14:03:32,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5550295857988166 [2024-11-19 14:03:32,259 INFO L175 Difference]: Start difference. First operand has 148 places, 164 transitions, 399 flow. Second operand 10 states and 938 transitions. [2024-11-19 14:03:32,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 182 transitions, 717 flow [2024-11-19 14:03:32,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 182 transitions, 659 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-19 14:03:32,264 INFO L231 Difference]: Finished difference. Result has 155 places, 182 transitions, 539 flow [2024-11-19 14:03:32,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=539, PETRI_PLACES=155, PETRI_TRANSITIONS=182} [2024-11-19 14:03:32,265 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-11-19 14:03:32,265 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 182 transitions, 539 flow [2024-11-19 14:03:32,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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) [2024-11-19 14:03:32,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:32,266 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:32,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 14:03:32,470 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,SelfDestructingSolverStorable2 [2024-11-19 14:03:32,471 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:32,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2088466662, now seen corresponding path program 1 times [2024-11-19 14:03:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:32,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290145792] [2024-11-19 14:03:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:32,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:32,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:32,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290145792] [2024-11-19 14:03:32,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290145792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:32,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:32,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:32,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408688594] [2024-11-19 14:03:32,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:32,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:32,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:32,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:32,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 169 [2024-11-19 14:03:32,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 182 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2024-11-19 14:03:32,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:32,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 169 [2024-11-19 14:03:32,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:32,969 INFO L124 PetriNetUnfolderBase]: 2894/6537 cut-off events. [2024-11-19 14:03:32,969 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-19 14:03:32,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10849 conditions, 6537 events. 2894/6537 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 58947 event pairs, 1812 based on Foata normal form. 2/5209 useless extension candidates. Maximal degree in co-relation 10782. Up to 4192 conditions per place. [2024-11-19 14:03:32,994 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 91 selfloop transitions, 7 changer transitions 0/180 dead transitions. [2024-11-19 14:03:32,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 180 transitions, 725 flow [2024-11-19 14:03:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2024-11-19 14:03:32,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6765285996055227 [2024-11-19 14:03:32,995 INFO L175 Difference]: Start difference. First operand has 155 places, 182 transitions, 539 flow. Second operand 3 states and 343 transitions. [2024-11-19 14:03:32,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 180 transitions, 725 flow [2024-11-19 14:03:32,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 180 transitions, 695 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:33,001 INFO L231 Difference]: Finished difference. Result has 154 places, 180 transitions, 513 flow [2024-11-19 14:03:33,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=154, PETRI_TRANSITIONS=180} [2024-11-19 14:03:33,004 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2024-11-19 14:03:33,004 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 180 transitions, 513 flow [2024-11-19 14:03:33,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2024-11-19 14:03:33,005 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:33,005 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-19 14:03:33,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:03:33,005 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:33,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1604617938, now seen corresponding path program 2 times [2024-11-19 14:03:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:33,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27447424] [2024-11-19 14:03:33,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:33,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:33,037 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:33,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:33,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:33,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27447424] [2024-11-19 14:03:33,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27447424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:33,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631656663] [2024-11-19 14:03:33,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:33,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:33,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:33,077 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) [2024-11-19 14:03:33,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:03:33,150 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:33,151 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:33,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:33,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:33,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:33,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:33,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631656663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:33,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:33,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-19 14:03:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437158707] [2024-11-19 14:03:33,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:33,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 14:03:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 14:03:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:03:33,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:33,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 180 transitions, 513 flow. Second operand has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 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) [2024-11-19 14:03:33,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:33,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:33,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:33,674 INFO L124 PetriNetUnfolderBase]: 2894/6535 cut-off events. [2024-11-19 14:03:33,674 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-19 14:03:33,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10829 conditions, 6535 events. 2894/6535 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 58885 event pairs, 1812 based on Foata normal form. 2/5208 useless extension candidates. Maximal degree in co-relation 10774. Up to 4174 conditions per place. [2024-11-19 14:03:33,695 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 73 selfloop transitions, 25 changer transitions 0/178 dead transitions. [2024-11-19 14:03:33,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 178 transitions, 689 flow [2024-11-19 14:03:33,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2024-11-19 14:03:33,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.606508875739645 [2024-11-19 14:03:33,696 INFO L175 Difference]: Start difference. First operand has 154 places, 180 transitions, 513 flow. Second operand 4 states and 410 transitions. [2024-11-19 14:03:33,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 178 transitions, 689 flow [2024-11-19 14:03:33,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 178 transitions, 655 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-19 14:03:33,700 INFO L231 Difference]: Finished difference. Result has 149 places, 178 transitions, 509 flow [2024-11-19 14:03:33,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=149, PETRI_TRANSITIONS=178} [2024-11-19 14:03:33,702 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 2 predicate places. [2024-11-19 14:03:33,702 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 178 transitions, 509 flow [2024-11-19 14:03:33,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 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) [2024-11-19 14:03:33,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:33,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:33,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:03:33,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:33,907 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:33,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:33,907 INFO L85 PathProgramCache]: Analyzing trace with hash -115340577, now seen corresponding path program 1 times [2024-11-19 14:03:33,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:33,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436881882] [2024-11-19 14:03:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:33,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:03:33,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:33,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436881882] [2024-11-19 14:03:33,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436881882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:33,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:33,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:33,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951877371] [2024-11-19 14:03:33,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:33,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:33,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:33,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:33,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:33,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 178 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-11-19 14:03:33,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:33,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:33,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:34,776 INFO L124 PetriNetUnfolderBase]: 5151/10827 cut-off events. [2024-11-19 14:03:34,777 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-19 14:03:34,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18506 conditions, 10827 events. 5151/10827 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 95762 event pairs, 2276 based on Foata normal form. 112/9065 useless extension candidates. Maximal degree in co-relation 18362. Up to 4871 conditions per place. [2024-11-19 14:03:34,807 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 156 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-11-19 14:03:34,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 234 transitions, 939 flow [2024-11-19 14:03:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:34,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2024-11-19 14:03:34,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7672583826429981 [2024-11-19 14:03:34,809 INFO L175 Difference]: Start difference. First operand has 149 places, 178 transitions, 509 flow. Second operand 3 states and 389 transitions. [2024-11-19 14:03:34,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 234 transitions, 939 flow [2024-11-19 14:03:34,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 234 transitions, 889 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:34,812 INFO L231 Difference]: Finished difference. Result has 149 places, 179 transitions, 477 flow [2024-11-19 14:03:34,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=149, PETRI_TRANSITIONS=179} [2024-11-19 14:03:34,813 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 2 predicate places. [2024-11-19 14:03:34,813 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 179 transitions, 477 flow [2024-11-19 14:03:34,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-11-19 14:03:34,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:34,813 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:34,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:03:34,814 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:34,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash -116357444, now seen corresponding path program 1 times [2024-11-19 14:03:34,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:34,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807140605] [2024-11-19 14:03:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:03:34,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:34,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807140605] [2024-11-19 14:03:34,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807140605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:34,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:34,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:34,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948044200] [2024-11-19 14:03:34,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:34,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:34,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:34,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:34,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:34,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:03:34,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 179 transitions, 477 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2024-11-19 14:03:34,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:34,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:03:34,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:35,667 INFO L124 PetriNetUnfolderBase]: 7102/14895 cut-off events. [2024-11-19 14:03:35,667 INFO L125 PetriNetUnfolderBase]: For 299/299 co-relation queries the response was YES. [2024-11-19 14:03:35,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25871 conditions, 14895 events. 7102/14895 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 138144 event pairs, 2894 based on Foata normal form. 336/12489 useless extension candidates. Maximal degree in co-relation 25751. Up to 6602 conditions per place. [2024-11-19 14:03:35,725 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 177 selfloop transitions, 10 changer transitions 0/255 dead transitions. [2024-11-19 14:03:35,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 255 transitions, 1005 flow [2024-11-19 14:03:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:35,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2024-11-19 14:03:35,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952662721893491 [2024-11-19 14:03:35,727 INFO L175 Difference]: Start difference. First operand has 149 places, 179 transitions, 477 flow. Second operand 4 states and 470 transitions. [2024-11-19 14:03:35,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 255 transitions, 1005 flow [2024-11-19 14:03:35,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 255 transitions, 1003 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:35,732 INFO L231 Difference]: Finished difference. Result has 152 places, 183 transitions, 543 flow [2024-11-19 14:03:35,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=543, PETRI_PLACES=152, PETRI_TRANSITIONS=183} [2024-11-19 14:03:35,733 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 5 predicate places. [2024-11-19 14:03:35,733 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 183 transitions, 543 flow [2024-11-19 14:03:35,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2024-11-19 14:03:35,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:35,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:35,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:03:35,734 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:35,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:35,734 INFO L85 PathProgramCache]: Analyzing trace with hash 687888212, now seen corresponding path program 1 times [2024-11-19 14:03:35,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:35,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082508115] [2024-11-19 14:03:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:35,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:03:35,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:35,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082508115] [2024-11-19 14:03:35,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082508115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:35,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329559530] [2024-11-19 14:03:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:35,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:35,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:35,833 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) [2024-11-19 14:03:35,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:03:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:35,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:03:35,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:35,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:03:35,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:03:35,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329559530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:35,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:35,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-19 14:03:35,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520607792] [2024-11-19 14:03:35,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:35,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 14:03:35,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 14:03:35,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 14:03:35,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:35,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 183 transitions, 543 flow. Second operand has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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) [2024-11-19 14:03:35,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:35,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:35,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:36,859 INFO L124 PetriNetUnfolderBase]: 5447/12736 cut-off events. [2024-11-19 14:03:36,860 INFO L125 PetriNetUnfolderBase]: For 1952/2094 co-relation queries the response was YES. [2024-11-19 14:03:36,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22912 conditions, 12736 events. 5447/12736 cut-off events. For 1952/2094 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 125005 event pairs, 3559 based on Foata normal form. 79/10765 useless extension candidates. Maximal degree in co-relation 22802. Up to 7902 conditions per place. [2024-11-19 14:03:36,910 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 21 changer transitions 0/179 dead transitions. [2024-11-19 14:03:36,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 179 transitions, 721 flow [2024-11-19 14:03:36,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 14:03:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 14:03:36,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 671 transitions. [2024-11-19 14:03:36,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5672020287404903 [2024-11-19 14:03:36,912 INFO L175 Difference]: Start difference. First operand has 152 places, 183 transitions, 543 flow. Second operand 7 states and 671 transitions. [2024-11-19 14:03:36,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 179 transitions, 721 flow [2024-11-19 14:03:36,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 179 transitions, 721 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:03:36,929 INFO L231 Difference]: Finished difference. Result has 158 places, 179 transitions, 565 flow [2024-11-19 14:03:36,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=565, PETRI_PLACES=158, PETRI_TRANSITIONS=179} [2024-11-19 14:03:36,930 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-19 14:03:36,931 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 179 transitions, 565 flow [2024-11-19 14:03:36,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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) [2024-11-19 14:03:36,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:36,932 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:36,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 14:03:37,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:37,132 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:37,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:37,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1947019892, now seen corresponding path program 2 times [2024-11-19 14:03:37,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:37,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027911477] [2024-11-19 14:03:37,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:37,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:37,148 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:37,149 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 14:03:37,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:37,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027911477] [2024-11-19 14:03:37,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027911477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:37,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:37,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:37,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32329978] [2024-11-19 14:03:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:37,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:37,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:37,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:37,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:37,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:03:37,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 179 transitions, 565 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:37,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:37,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:03:37,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:38,142 INFO L124 PetriNetUnfolderBase]: 6293/14328 cut-off events. [2024-11-19 14:03:38,143 INFO L125 PetriNetUnfolderBase]: For 2312/2354 co-relation queries the response was YES. [2024-11-19 14:03:38,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26251 conditions, 14328 events. 6293/14328 cut-off events. For 2312/2354 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 139698 event pairs, 3226 based on Foata normal form. 42/12083 useless extension candidates. Maximal degree in co-relation 26122. Up to 7089 conditions per place. [2024-11-19 14:03:38,187 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 132 selfloop transitions, 7 changer transitions 0/215 dead transitions. [2024-11-19 14:03:38,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 215 transitions, 918 flow [2024-11-19 14:03:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2024-11-19 14:03:38,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523668639053254 [2024-11-19 14:03:38,189 INFO L175 Difference]: Start difference. First operand has 158 places, 179 transitions, 565 flow. Second operand 4 states and 441 transitions. [2024-11-19 14:03:38,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 215 transitions, 918 flow [2024-11-19 14:03:38,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 215 transitions, 901 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:38,205 INFO L231 Difference]: Finished difference. Result has 157 places, 179 transitions, 572 flow [2024-11-19 14:03:38,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=572, PETRI_PLACES=157, PETRI_TRANSITIONS=179} [2024-11-19 14:03:38,205 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2024-11-19 14:03:38,205 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 179 transitions, 572 flow [2024-11-19 14:03:38,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:38,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:38,206 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:38,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 14:03:38,206 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:38,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:38,206 INFO L85 PathProgramCache]: Analyzing trace with hash 228044423, now seen corresponding path program 1 times [2024-11-19 14:03:38,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:38,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258152143] [2024-11-19 14:03:38,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:38,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:38,345 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 14:03:38,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:38,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258152143] [2024-11-19 14:03:38,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258152143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:38,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542912591] [2024-11-19 14:03:38,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:38,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:38,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:38,347 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) [2024-11-19 14:03:38,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:03:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:38,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 14:03:38,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 14:03:38,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 14:03:38,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542912591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:38,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:38,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-19 14:03:38,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037615716] [2024-11-19 14:03:38,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:38,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 14:03:38,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 14:03:38,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-19 14:03:38,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:38,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 179 transitions, 572 flow. Second operand has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 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) [2024-11-19 14:03:38,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:38,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:38,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:39,612 INFO L124 PetriNetUnfolderBase]: 5757/13572 cut-off events. [2024-11-19 14:03:39,612 INFO L125 PetriNetUnfolderBase]: For 3814/3956 co-relation queries the response was YES. [2024-11-19 14:03:39,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25112 conditions, 13572 events. 5757/13572 cut-off events. For 3814/3956 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 134821 event pairs, 3813 based on Foata normal form. 81/11432 useless extension candidates. Maximal degree in co-relation 24985. Up to 8381 conditions per place. [2024-11-19 14:03:39,670 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 22 changer transitions 0/179 dead transitions. [2024-11-19 14:03:39,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 179 transitions, 777 flow [2024-11-19 14:03:39,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 14:03:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 14:03:39,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1011 transitions. [2024-11-19 14:03:39,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5438407746100054 [2024-11-19 14:03:39,673 INFO L175 Difference]: Start difference. First operand has 157 places, 179 transitions, 572 flow. Second operand 11 states and 1011 transitions. [2024-11-19 14:03:39,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 179 transitions, 777 flow [2024-11-19 14:03:39,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 179 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:39,704 INFO L231 Difference]: Finished difference. Result has 167 places, 179 transitions, 631 flow [2024-11-19 14:03:39,704 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=631, PETRI_PLACES=167, PETRI_TRANSITIONS=179} [2024-11-19 14:03:39,705 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 20 predicate places. [2024-11-19 14:03:39,705 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 179 transitions, 631 flow [2024-11-19 14:03:39,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 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) [2024-11-19 14:03:39,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:39,706 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:39,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 14:03:39,906 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,SelfDestructingSolverStorable9 [2024-11-19 14:03:39,907 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:39,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:39,907 INFO L85 PathProgramCache]: Analyzing trace with hash -42703001, now seen corresponding path program 2 times [2024-11-19 14:03:39,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:39,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521936884] [2024-11-19 14:03:39,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:39,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:39,922 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:39,923 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:39,954 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:39,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:39,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521936884] [2024-11-19 14:03:39,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521936884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:39,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:39,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:39,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613058652] [2024-11-19 14:03:39,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:39,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:39,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:39,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:39,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:39,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-11-19 14:03:39,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 179 transitions, 631 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-11-19 14:03:39,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:39,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-11-19 14:03:39,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:40,786 INFO L124 PetriNetUnfolderBase]: 6529/14592 cut-off events. [2024-11-19 14:03:40,786 INFO L125 PetriNetUnfolderBase]: For 4164/4206 co-relation queries the response was YES. [2024-11-19 14:03:40,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27644 conditions, 14592 events. 6529/14592 cut-off events. For 4164/4206 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 140638 event pairs, 3522 based on Foata normal form. 98/12315 useless extension candidates. Maximal degree in co-relation 27487. Up to 7689 conditions per place. [2024-11-19 14:03:40,840 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 134 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2024-11-19 14:03:40,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 213 transitions, 980 flow [2024-11-19 14:03:40,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:40,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2024-11-19 14:03:40,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6390532544378699 [2024-11-19 14:03:40,842 INFO L175 Difference]: Start difference. First operand has 167 places, 179 transitions, 631 flow. Second operand 4 states and 432 transitions. [2024-11-19 14:03:40,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 213 transitions, 980 flow [2024-11-19 14:03:40,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 213 transitions, 948 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-19 14:03:40,873 INFO L231 Difference]: Finished difference. Result has 161 places, 178 transitions, 609 flow [2024-11-19 14:03:40,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=161, PETRI_TRANSITIONS=178} [2024-11-19 14:03:40,873 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2024-11-19 14:03:40,873 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 178 transitions, 609 flow [2024-11-19 14:03:40,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-11-19 14:03:40,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:40,874 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:40,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 14:03:40,874 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:40,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1540450559, now seen corresponding path program 1 times [2024-11-19 14:03:40,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:40,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145558081] [2024-11-19 14:03:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:40,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:40,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:40,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145558081] [2024-11-19 14:03:40,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145558081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:40,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:40,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:40,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138050572] [2024-11-19 14:03:40,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:40,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:40,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:40,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:40,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:40,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:40,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 178 transitions, 609 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2024-11-19 14:03:40,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:40,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:40,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:42,537 INFO L124 PetriNetUnfolderBase]: 9773/20944 cut-off events. [2024-11-19 14:03:42,537 INFO L125 PetriNetUnfolderBase]: For 6649/6966 co-relation queries the response was YES. [2024-11-19 14:03:42,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40083 conditions, 20944 events. 9773/20944 cut-off events. For 6649/6966 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 201677 event pairs, 4417 based on Foata normal form. 417/18414 useless extension candidates. Maximal degree in co-relation 39940. Up to 9507 conditions per place. [2024-11-19 14:03:42,632 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 162 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2024-11-19 14:03:42,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 238 transitions, 1120 flow [2024-11-19 14:03:42,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:42,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-11-19 14:03:42,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7633136094674556 [2024-11-19 14:03:42,634 INFO L175 Difference]: Start difference. First operand has 161 places, 178 transitions, 609 flow. Second operand 3 states and 387 transitions. [2024-11-19 14:03:42,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 238 transitions, 1120 flow [2024-11-19 14:03:42,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 238 transitions, 1100 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:42,669 INFO L231 Difference]: Finished difference. Result has 161 places, 179 transitions, 613 flow [2024-11-19 14:03:42,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=161, PETRI_TRANSITIONS=179} [2024-11-19 14:03:42,670 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2024-11-19 14:03:42,670 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 179 transitions, 613 flow [2024-11-19 14:03:42,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2024-11-19 14:03:42,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:42,670 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:42,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 14:03:42,670 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:42,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1539433692, now seen corresponding path program 1 times [2024-11-19 14:03:42,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:42,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847969108] [2024-11-19 14:03:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:42,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:42,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:42,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847969108] [2024-11-19 14:03:42,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847969108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:42,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:42,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:42,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957120890] [2024-11-19 14:03:42,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:42,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:42,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:42,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:42,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:42,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:03:42,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 179 transitions, 613 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-11-19 14:03:42,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:42,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:03:42,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:44,592 INFO L124 PetriNetUnfolderBase]: 13708/28419 cut-off events. [2024-11-19 14:03:44,593 INFO L125 PetriNetUnfolderBase]: For 8433/8912 co-relation queries the response was YES. [2024-11-19 14:03:44,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55701 conditions, 28419 events. 13708/28419 cut-off events. For 8433/8912 co-relation queries the response was YES. Maximal size of possible extension queue 984. Compared 277817 event pairs, 6038 based on Foata normal form. 949/25517 useless extension candidates. Maximal degree in co-relation 55558. Up to 13076 conditions per place. [2024-11-19 14:03:44,693 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 189 selfloop transitions, 10 changer transitions 0/265 dead transitions. [2024-11-19 14:03:44,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 265 transitions, 1297 flow [2024-11-19 14:03:44,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2024-11-19 14:03:44,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-11-19 14:03:44,694 INFO L175 Difference]: Start difference. First operand has 161 places, 179 transitions, 613 flow. Second operand 4 states and 468 transitions. [2024-11-19 14:03:44,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 265 transitions, 1297 flow [2024-11-19 14:03:44,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 265 transitions, 1295 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:44,736 INFO L231 Difference]: Finished difference. Result has 164 places, 183 transitions, 679 flow [2024-11-19 14:03:44,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=679, PETRI_PLACES=164, PETRI_TRANSITIONS=183} [2024-11-19 14:03:44,737 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 17 predicate places. [2024-11-19 14:03:44,737 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 183 transitions, 679 flow [2024-11-19 14:03:44,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-11-19 14:03:44,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:44,737 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:44,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 14:03:44,738 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:44,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1131369033, now seen corresponding path program 1 times [2024-11-19 14:03:44,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:44,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965668907] [2024-11-19 14:03:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:44,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:44,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:44,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965668907] [2024-11-19 14:03:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965668907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:44,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:44,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:03:44,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180112813] [2024-11-19 14:03:44,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:44,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:44,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:44,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:44,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:44,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:03:44,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 183 transitions, 679 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-11-19 14:03:44,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:44,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:03:44,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:46,436 INFO L124 PetriNetUnfolderBase]: 10460/21880 cut-off events. [2024-11-19 14:03:46,436 INFO L125 PetriNetUnfolderBase]: For 8656/9168 co-relation queries the response was YES. [2024-11-19 14:03:46,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45315 conditions, 21880 events. 10460/21880 cut-off events. For 8656/9168 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 206790 event pairs, 5256 based on Foata normal form. 416/20504 useless extension candidates. Maximal degree in co-relation 45170. Up to 10878 conditions per place. [2024-11-19 14:03:46,524 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 228 selfloop transitions, 4 changer transitions 14/320 dead transitions. [2024-11-19 14:03:46,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 320 transitions, 1576 flow [2024-11-19 14:03:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:46,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 619 transitions. [2024-11-19 14:03:46,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7325443786982249 [2024-11-19 14:03:46,526 INFO L175 Difference]: Start difference. First operand has 164 places, 183 transitions, 679 flow. Second operand 5 states and 619 transitions. [2024-11-19 14:03:46,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 320 transitions, 1576 flow [2024-11-19 14:03:46,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 320 transitions, 1576 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:03:46,587 INFO L231 Difference]: Finished difference. Result has 171 places, 185 transitions, 704 flow [2024-11-19 14:03:46,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=704, PETRI_PLACES=171, PETRI_TRANSITIONS=185} [2024-11-19 14:03:46,588 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 24 predicate places. [2024-11-19 14:03:46,588 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 185 transitions, 704 flow [2024-11-19 14:03:46,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-11-19 14:03:46,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:46,588 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:46,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 14:03:46,589 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:46,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1093132317, now seen corresponding path program 1 times [2024-11-19 14:03:46,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:46,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144489018] [2024-11-19 14:03:46,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:46,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:46,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144489018] [2024-11-19 14:03:46,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144489018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:46,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:46,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:46,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462638482] [2024-11-19 14:03:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:46,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:46,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:46,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:46,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:03:46,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 185 transitions, 704 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2024-11-19 14:03:46,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:46,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:03:46,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:48,544 INFO L124 PetriNetUnfolderBase]: 10820/22036 cut-off events. [2024-11-19 14:03:48,545 INFO L125 PetriNetUnfolderBase]: For 10012/10548 co-relation queries the response was YES. [2024-11-19 14:03:48,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47270 conditions, 22036 events. 10820/22036 cut-off events. For 10012/10548 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 203740 event pairs, 6076 based on Foata normal form. 530/20970 useless extension candidates. Maximal degree in co-relation 47122. Up to 12402 conditions per place. [2024-11-19 14:03:48,667 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 202 selfloop transitions, 3 changer transitions 0/277 dead transitions. [2024-11-19 14:03:48,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 277 transitions, 1385 flow [2024-11-19 14:03:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:48,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 493 transitions. [2024-11-19 14:03:48,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7292899408284024 [2024-11-19 14:03:48,669 INFO L175 Difference]: Start difference. First operand has 171 places, 185 transitions, 704 flow. Second operand 4 states and 493 transitions. [2024-11-19 14:03:48,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 277 transitions, 1385 flow [2024-11-19 14:03:48,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 277 transitions, 1383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:48,757 INFO L231 Difference]: Finished difference. Result has 175 places, 186 transitions, 720 flow [2024-11-19 14:03:48,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=720, PETRI_PLACES=175, PETRI_TRANSITIONS=186} [2024-11-19 14:03:48,758 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 28 predicate places. [2024-11-19 14:03:48,758 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 186 transitions, 720 flow [2024-11-19 14:03:48,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2024-11-19 14:03:48,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:48,759 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:48,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 14:03:48,759 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:48,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1323792355, now seen corresponding path program 1 times [2024-11-19 14:03:48,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:48,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544326812] [2024-11-19 14:03:48,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:48,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:48,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:48,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544326812] [2024-11-19 14:03:48,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544326812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:48,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:48,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:48,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351652471] [2024-11-19 14:03:48,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:48,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:48,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:48,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:48,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2024-11-19 14:03:48,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 186 transitions, 720 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2024-11-19 14:03:48,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:48,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2024-11-19 14:03:48,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:51,203 INFO L124 PetriNetUnfolderBase]: 12403/24884 cut-off events. [2024-11-19 14:03:51,204 INFO L125 PetriNetUnfolderBase]: For 10285/10760 co-relation queries the response was YES. [2024-11-19 14:03:51,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54356 conditions, 24884 events. 12403/24884 cut-off events. For 10285/10760 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 228151 event pairs, 5860 based on Foata normal form. 247/23232 useless extension candidates. Maximal degree in co-relation 54205. Up to 12224 conditions per place. [2024-11-19 14:03:51,315 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 187 selfloop transitions, 12 changer transitions 0/267 dead transitions. [2024-11-19 14:03:51,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 267 transitions, 1366 flow [2024-11-19 14:03:51,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:51,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2024-11-19 14:03:51,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2024-11-19 14:03:51,317 INFO L175 Difference]: Start difference. First operand has 175 places, 186 transitions, 720 flow. Second operand 5 states and 546 transitions. [2024-11-19 14:03:51,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 267 transitions, 1366 flow [2024-11-19 14:03:51,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 267 transitions, 1364 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:51,415 INFO L231 Difference]: Finished difference. Result has 179 places, 186 transitions, 764 flow [2024-11-19 14:03:51,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=764, PETRI_PLACES=179, PETRI_TRANSITIONS=186} [2024-11-19 14:03:51,416 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2024-11-19 14:03:51,416 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 186 transitions, 764 flow [2024-11-19 14:03:51,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2024-11-19 14:03:51,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:51,416 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:51,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 14:03:51,417 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:51,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1323791330, now seen corresponding path program 1 times [2024-11-19 14:03:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:51,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546743509] [2024-11-19 14:03:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:51,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:51,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:51,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546743509] [2024-11-19 14:03:51,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546743509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:51,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:51,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:51,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825334652] [2024-11-19 14:03:51,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:51,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:51,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:51,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:51,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:51,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:03:51,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 186 transitions, 764 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2024-11-19 14:03:51,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:51,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:03:51,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:53,168 INFO L124 PetriNetUnfolderBase]: 10854/23385 cut-off events. [2024-11-19 14:03:53,168 INFO L125 PetriNetUnfolderBase]: For 14557/14898 co-relation queries the response was YES. [2024-11-19 14:03:53,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52111 conditions, 23385 events. 10854/23385 cut-off events. For 14557/14898 co-relation queries the response was YES. Maximal size of possible extension queue 773. Compared 225806 event pairs, 5825 based on Foata normal form. 385/21947 useless extension candidates. Maximal degree in co-relation 51957. Up to 12180 conditions per place. [2024-11-19 14:03:53,380 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 189 selfloop transitions, 9 changer transitions 0/266 dead transitions. [2024-11-19 14:03:53,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 266 transitions, 1398 flow [2024-11-19 14:03:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2024-11-19 14:03:53,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6834319526627219 [2024-11-19 14:03:53,384 INFO L175 Difference]: Start difference. First operand has 179 places, 186 transitions, 764 flow. Second operand 4 states and 462 transitions. [2024-11-19 14:03:53,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 266 transitions, 1398 flow [2024-11-19 14:03:53,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 266 transitions, 1382 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:53,564 INFO L231 Difference]: Finished difference. Result has 179 places, 184 transitions, 754 flow [2024-11-19 14:03:53,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=754, PETRI_PLACES=179, PETRI_TRANSITIONS=184} [2024-11-19 14:03:53,564 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2024-11-19 14:03:53,564 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 184 transitions, 754 flow [2024-11-19 14:03:53,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2024-11-19 14:03:53,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:53,565 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:53,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 14:03:53,565 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:53,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash 477805948, now seen corresponding path program 1 times [2024-11-19 14:03:53,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:53,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889082527] [2024-11-19 14:03:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:53,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:53,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:53,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889082527] [2024-11-19 14:03:53,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889082527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:53,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:53,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941185302] [2024-11-19 14:03:53,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:53,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:53,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:53,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:03:53,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 184 transitions, 754 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-11-19 14:03:53,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:53,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:03:53,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:55,362 INFO L124 PetriNetUnfolderBase]: 10920/24469 cut-off events. [2024-11-19 14:03:55,363 INFO L125 PetriNetUnfolderBase]: For 15828/16069 co-relation queries the response was YES. [2024-11-19 14:03:55,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53719 conditions, 24469 events. 10920/24469 cut-off events. For 15828/16069 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 245515 event pairs, 6100 based on Foata normal form. 195/22456 useless extension candidates. Maximal degree in co-relation 53566. Up to 12714 conditions per place. [2024-11-19 14:03:55,572 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 149 selfloop transitions, 7 changer transitions 0/228 dead transitions. [2024-11-19 14:03:55,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 228 transitions, 1272 flow [2024-11-19 14:03:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:55,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:55,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2024-11-19 14:03:55,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.650887573964497 [2024-11-19 14:03:55,574 INFO L175 Difference]: Start difference. First operand has 179 places, 184 transitions, 754 flow. Second operand 4 states and 440 transitions. [2024-11-19 14:03:55,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 228 transitions, 1272 flow [2024-11-19 14:03:55,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 228 transitions, 1248 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:55,726 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 765 flow [2024-11-19 14:03:55,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=765, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2024-11-19 14:03:55,726 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 33 predicate places. [2024-11-19 14:03:55,726 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 765 flow [2024-11-19 14:03:55,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-11-19 14:03:55,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:55,727 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:55,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 14:03:55,727 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:55,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:55,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1912111665, now seen corresponding path program 1 times [2024-11-19 14:03:55,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:55,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107589850] [2024-11-19 14:03:55,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:55,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:55,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:55,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107589850] [2024-11-19 14:03:55,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107589850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:55,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:55,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:03:55,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375498645] [2024-11-19 14:03:55,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:55,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:55,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:55,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:55,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:03:55,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2024-11-19 14:03:55,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 765 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2024-11-19 14:03:55,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:55,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2024-11-19 14:03:55,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:57,845 INFO L124 PetriNetUnfolderBase]: 13089/26010 cut-off events. [2024-11-19 14:03:57,845 INFO L125 PetriNetUnfolderBase]: For 18772/19261 co-relation queries the response was YES. [2024-11-19 14:03:57,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60416 conditions, 26010 events. 13089/26010 cut-off events. For 18772/19261 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 237838 event pairs, 6724 based on Foata normal form. 573/24634 useless extension candidates. Maximal degree in co-relation 60261. Up to 13834 conditions per place. [2024-11-19 14:03:57,984 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 314 selfloop transitions, 13 changer transitions 0/391 dead transitions. [2024-11-19 14:03:57,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 391 transitions, 2145 flow [2024-11-19 14:03:57,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 14:03:57,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 14:03:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 835 transitions. [2024-11-19 14:03:57,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.617603550295858 [2024-11-19 14:03:57,986 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 765 flow. Second operand 8 states and 835 transitions. [2024-11-19 14:03:57,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 391 transitions, 2145 flow [2024-11-19 14:03:58,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 391 transitions, 2112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:58,213 INFO L231 Difference]: Finished difference. Result has 188 places, 186 transitions, 814 flow [2024-11-19 14:03:58,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=814, PETRI_PLACES=188, PETRI_TRANSITIONS=186} [2024-11-19 14:03:58,213 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 41 predicate places. [2024-11-19 14:03:58,214 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 186 transitions, 814 flow [2024-11-19 14:03:58,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2024-11-19 14:03:58,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:58,214 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:58,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 14:03:58,214 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:03:58,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:58,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1927052487, now seen corresponding path program 1 times [2024-11-19 14:03:58,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:58,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718146740] [2024-11-19 14:03:58,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:58,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:03:58,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:58,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718146740] [2024-11-19 14:03:58,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718146740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:58,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:58,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:58,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048721363] [2024-11-19 14:03:58,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:58,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:58,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:58,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:58,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:58,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-11-19 14:03:58,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 186 transitions, 814 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-11-19 14:03:58,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:58,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-11-19 14:03:58,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:00,210 INFO L124 PetriNetUnfolderBase]: 11310/24706 cut-off events. [2024-11-19 14:04:00,211 INFO L125 PetriNetUnfolderBase]: For 25830/26416 co-relation queries the response was YES. [2024-11-19 14:04:00,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58322 conditions, 24706 events. 11310/24706 cut-off events. For 25830/26416 co-relation queries the response was YES. Maximal size of possible extension queue 795. Compared 243173 event pairs, 6670 based on Foata normal form. 541/23273 useless extension candidates. Maximal degree in co-relation 58163. Up to 13762 conditions per place. [2024-11-19 14:04:00,314 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 155 selfloop transitions, 7 changer transitions 0/230 dead transitions. [2024-11-19 14:04:00,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 230 transitions, 1359 flow [2024-11-19 14:04:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2024-11-19 14:04:00,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6375739644970414 [2024-11-19 14:04:00,316 INFO L175 Difference]: Start difference. First operand has 188 places, 186 transitions, 814 flow. Second operand 4 states and 431 transitions. [2024-11-19 14:04:00,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 230 transitions, 1359 flow [2024-11-19 14:04:00,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 230 transitions, 1340 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:00,535 INFO L231 Difference]: Finished difference. Result has 187 places, 185 transitions, 813 flow [2024-11-19 14:04:00,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=813, PETRI_PLACES=187, PETRI_TRANSITIONS=185} [2024-11-19 14:04:00,536 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 40 predicate places. [2024-11-19 14:04:00,536 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 185 transitions, 813 flow [2024-11-19 14:04:00,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-11-19 14:04:00,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:00,536 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:00,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 14:04:00,536 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:00,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 92837097, now seen corresponding path program 1 times [2024-11-19 14:04:00,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101072094] [2024-11-19 14:04:00,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:00,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:00,596 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:00,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:00,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101072094] [2024-11-19 14:04:00,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101072094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:00,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:00,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:00,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744286752] [2024-11-19 14:04:00,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:00,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:00,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:00,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:00,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:00,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:04:00,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 185 transitions, 813 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-11-19 14:04:00,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:00,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:04:00,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:02,413 INFO L124 PetriNetUnfolderBase]: 12176/25183 cut-off events. [2024-11-19 14:04:02,414 INFO L125 PetriNetUnfolderBase]: For 23754/24142 co-relation queries the response was YES. [2024-11-19 14:04:02,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60603 conditions, 25183 events. 12176/25183 cut-off events. For 23754/24142 co-relation queries the response was YES. Maximal size of possible extension queue 799. Compared 238072 event pairs, 6403 based on Foata normal form. 510/24033 useless extension candidates. Maximal degree in co-relation 60443. Up to 13342 conditions per place. [2024-11-19 14:04:02,588 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 190 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2024-11-19 14:04:02,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 266 transitions, 1505 flow [2024-11-19 14:04:02,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:02,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:02,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2024-11-19 14:04:02,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6775147928994083 [2024-11-19 14:04:02,590 INFO L175 Difference]: Start difference. First operand has 187 places, 185 transitions, 813 flow. Second operand 4 states and 458 transitions. [2024-11-19 14:04:02,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 266 transitions, 1505 flow [2024-11-19 14:04:02,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 266 transitions, 1473 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:02,888 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 821 flow [2024-11-19 14:04:02,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=821, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2024-11-19 14:04:02,889 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 38 predicate places. [2024-11-19 14:04:02,889 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 821 flow [2024-11-19 14:04:02,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-11-19 14:04:02,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:02,889 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:02,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 14:04:02,889 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:02,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:02,890 INFO L85 PathProgramCache]: Analyzing trace with hash -160254261, now seen corresponding path program 1 times [2024-11-19 14:04:02,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:02,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774406344] [2024-11-19 14:04:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:02,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:02,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:02,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774406344] [2024-11-19 14:04:02,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774406344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:02,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:02,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:02,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352663935] [2024-11-19 14:04:02,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:02,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:02,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:02,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:02,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:02,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:04:02,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 821 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2024-11-19 14:04:02,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:02,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:04:02,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:05,413 INFO L124 PetriNetUnfolderBase]: 11388/24515 cut-off events. [2024-11-19 14:04:05,414 INFO L125 PetriNetUnfolderBase]: For 27430/28179 co-relation queries the response was YES. [2024-11-19 14:04:05,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58338 conditions, 24515 events. 11388/24515 cut-off events. For 27430/28179 co-relation queries the response was YES. Maximal size of possible extension queue 792. Compared 238348 event pairs, 5453 based on Foata normal form. 789/23523 useless extension candidates. Maximal degree in co-relation 58178. Up to 11151 conditions per place. [2024-11-19 14:04:05,603 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 229 selfloop transitions, 3 changer transitions 0/298 dead transitions. [2024-11-19 14:04:05,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 298 transitions, 1841 flow [2024-11-19 14:04:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2024-11-19 14:04:05,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7337278106508875 [2024-11-19 14:04:05,605 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 821 flow. Second operand 4 states and 496 transitions. [2024-11-19 14:04:05,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 298 transitions, 1841 flow [2024-11-19 14:04:05,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 298 transitions, 1807 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:05,880 INFO L231 Difference]: Finished difference. Result has 188 places, 185 transitions, 827 flow [2024-11-19 14:04:05,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=827, PETRI_PLACES=188, PETRI_TRANSITIONS=185} [2024-11-19 14:04:05,880 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 41 predicate places. [2024-11-19 14:04:05,880 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 185 transitions, 827 flow [2024-11-19 14:04:05,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2024-11-19 14:04:05,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:05,881 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:05,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 14:04:05,881 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:05,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:05,881 INFO L85 PathProgramCache]: Analyzing trace with hash -198460225, now seen corresponding path program 1 times [2024-11-19 14:04:05,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:05,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143091449] [2024-11-19 14:04:05,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:05,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:05,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:05,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143091449] [2024-11-19 14:04:05,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143091449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:05,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:05,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:05,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892377081] [2024-11-19 14:04:05,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:05,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:05,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:05,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:05,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:05,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:04:05,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 185 transitions, 827 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2024-11-19 14:04:05,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:05,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:04:05,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:07,662 INFO L124 PetriNetUnfolderBase]: 9724/20265 cut-off events. [2024-11-19 14:04:07,662 INFO L125 PetriNetUnfolderBase]: For 21534/22155 co-relation queries the response was YES. [2024-11-19 14:04:07,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48573 conditions, 20265 events. 9724/20265 cut-off events. For 21534/22155 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 184509 event pairs, 5163 based on Foata normal form. 604/19605 useless extension candidates. Maximal degree in co-relation 48412. Up to 10520 conditions per place. [2024-11-19 14:04:07,830 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 243 selfloop transitions, 4 changer transitions 22/337 dead transitions. [2024-11-19 14:04:07,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 337 transitions, 2089 flow [2024-11-19 14:04:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 614 transitions. [2024-11-19 14:04:07,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7266272189349112 [2024-11-19 14:04:07,831 INFO L175 Difference]: Start difference. First operand has 188 places, 185 transitions, 827 flow. Second operand 5 states and 614 transitions. [2024-11-19 14:04:07,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 337 transitions, 2089 flow [2024-11-19 14:04:07,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 337 transitions, 2085 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:07,947 INFO L231 Difference]: Finished difference. Result has 193 places, 187 transitions, 848 flow [2024-11-19 14:04:07,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=848, PETRI_PLACES=193, PETRI_TRANSITIONS=187} [2024-11-19 14:04:07,948 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 46 predicate places. [2024-11-19 14:04:07,948 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 187 transitions, 848 flow [2024-11-19 14:04:07,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2024-11-19 14:04:07,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:07,948 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:07,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 14:04:07,948 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:07,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:07,948 INFO L85 PathProgramCache]: Analyzing trace with hash -390913274, now seen corresponding path program 1 times [2024-11-19 14:04:07,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:07,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976051600] [2024-11-19 14:04:07,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:07,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:08,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:08,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976051600] [2024-11-19 14:04:08,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976051600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:08,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:08,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:08,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264988235] [2024-11-19 14:04:08,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:08,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:08,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:08,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:08,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:08,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:04:08,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 187 transitions, 848 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2024-11-19 14:04:08,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:08,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:04:08,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:09,616 INFO L124 PetriNetUnfolderBase]: 10159/21384 cut-off events. [2024-11-19 14:04:09,617 INFO L125 PetriNetUnfolderBase]: For 23740/24260 co-relation queries the response was YES. [2024-11-19 14:04:09,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52311 conditions, 21384 events. 10159/21384 cut-off events. For 23740/24260 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 196684 event pairs, 5796 based on Foata normal form. 620/20536 useless extension candidates. Maximal degree in co-relation 52148. Up to 11770 conditions per place. [2024-11-19 14:04:09,742 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 208 selfloop transitions, 9 changer transitions 0/279 dead transitions. [2024-11-19 14:04:09,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 279 transitions, 1738 flow [2024-11-19 14:04:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2024-11-19 14:04:09,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6804733727810651 [2024-11-19 14:04:09,743 INFO L175 Difference]: Start difference. First operand has 193 places, 187 transitions, 848 flow. Second operand 4 states and 460 transitions. [2024-11-19 14:04:09,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 279 transitions, 1738 flow [2024-11-19 14:04:09,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 279 transitions, 1732 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:09,893 INFO L231 Difference]: Finished difference. Result has 195 places, 185 transitions, 848 flow [2024-11-19 14:04:09,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=848, PETRI_PLACES=195, PETRI_TRANSITIONS=185} [2024-11-19 14:04:09,893 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 48 predicate places. [2024-11-19 14:04:09,894 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 185 transitions, 848 flow [2024-11-19 14:04:09,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2024-11-19 14:04:09,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:09,894 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:09,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 14:04:09,894 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:09,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:09,894 INFO L85 PathProgramCache]: Analyzing trace with hash -390914299, now seen corresponding path program 1 times [2024-11-19 14:04:09,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:09,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037933753] [2024-11-19 14:04:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:09,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:09,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:09,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037933753] [2024-11-19 14:04:09,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037933753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:09,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:09,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:09,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541423992] [2024-11-19 14:04:09,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:09,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:09,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:09,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:09,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:04:10,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2024-11-19 14:04:10,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 185 transitions, 848 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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) [2024-11-19 14:04:10,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:10,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2024-11-19 14:04:10,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:11,725 INFO L124 PetriNetUnfolderBase]: 11495/22401 cut-off events. [2024-11-19 14:04:11,726 INFO L125 PetriNetUnfolderBase]: For 25170/25880 co-relation queries the response was YES. [2024-11-19 14:04:11,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56889 conditions, 22401 events. 11495/22401 cut-off events. For 25170/25880 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 193269 event pairs, 5796 based on Foata normal form. 546/21793 useless extension candidates. Maximal degree in co-relation 56726. Up to 11769 conditions per place. [2024-11-19 14:04:11,937 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 206 selfloop transitions, 12 changer transitions 0/278 dead transitions. [2024-11-19 14:04:11,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 278 transitions, 1750 flow [2024-11-19 14:04:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:11,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2024-11-19 14:04:11,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6437869822485207 [2024-11-19 14:04:11,939 INFO L175 Difference]: Start difference. First operand has 195 places, 185 transitions, 848 flow. Second operand 5 states and 544 transitions. [2024-11-19 14:04:11,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 278 transitions, 1750 flow [2024-11-19 14:04:12,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 278 transitions, 1737 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:12,095 INFO L231 Difference]: Finished difference. Result has 198 places, 185 transitions, 881 flow [2024-11-19 14:04:12,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=881, PETRI_PLACES=198, PETRI_TRANSITIONS=185} [2024-11-19 14:04:12,095 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2024-11-19 14:04:12,095 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 185 transitions, 881 flow [2024-11-19 14:04:12,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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) [2024-11-19 14:04:12,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:12,096 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:12,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 14:04:12,096 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:12,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash 766560401, now seen corresponding path program 1 times [2024-11-19 14:04:12,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:12,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550943397] [2024-11-19 14:04:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:12,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:12,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:12,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550943397] [2024-11-19 14:04:12,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550943397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:12,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:12,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:12,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644041699] [2024-11-19 14:04:12,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:12,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:12,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:12,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:12,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:12,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2024-11-19 14:04:12,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 185 transitions, 881 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2024-11-19 14:04:12,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:12,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2024-11-19 14:04:12,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:14,155 INFO L124 PetriNetUnfolderBase]: 11662/22380 cut-off events. [2024-11-19 14:04:14,155 INFO L125 PetriNetUnfolderBase]: For 30035/30757 co-relation queries the response was YES. [2024-11-19 14:04:14,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58956 conditions, 22380 events. 11662/22380 cut-off events. For 30035/30757 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 190110 event pairs, 6231 based on Foata normal form. 857/22172 useless extension candidates. Maximal degree in co-relation 58790. Up to 12567 conditions per place. [2024-11-19 14:04:14,283 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 345 selfloop transitions, 13 changer transitions 0/417 dead transitions. [2024-11-19 14:04:14,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 417 transitions, 2763 flow [2024-11-19 14:04:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 14:04:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 14:04:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 830 transitions. [2024-11-19 14:04:14,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.613905325443787 [2024-11-19 14:04:14,284 INFO L175 Difference]: Start difference. First operand has 198 places, 185 transitions, 881 flow. Second operand 8 states and 830 transitions. [2024-11-19 14:04:14,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 417 transitions, 2763 flow [2024-11-19 14:04:14,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 417 transitions, 2753 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:14,483 INFO L231 Difference]: Finished difference. Result has 206 places, 187 transitions, 928 flow [2024-11-19 14:04:14,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=928, PETRI_PLACES=206, PETRI_TRANSITIONS=187} [2024-11-19 14:04:14,483 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 59 predicate places. [2024-11-19 14:04:14,483 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 187 transitions, 928 flow [2024-11-19 14:04:14,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2024-11-19 14:04:14,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:14,484 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:14,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 14:04:14,484 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:14,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1059513647, now seen corresponding path program 1 times [2024-11-19 14:04:14,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:14,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785281629] [2024-11-19 14:04:14,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:14,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:14,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:14,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785281629] [2024-11-19 14:04:14,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785281629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:14,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:14,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:14,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830714296] [2024-11-19 14:04:14,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:14,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:14,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:14,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:14,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:14,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:04:14,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 187 transitions, 928 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-11-19 14:04:14,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:14,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:04:14,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:16,295 INFO L124 PetriNetUnfolderBase]: 10827/21496 cut-off events. [2024-11-19 14:04:16,295 INFO L125 PetriNetUnfolderBase]: For 35124/35753 co-relation queries the response was YES. [2024-11-19 14:04:16,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58719 conditions, 21496 events. 10827/21496 cut-off events. For 35124/35753 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 188231 event pairs, 5941 based on Foata normal form. 723/21535 useless extension candidates. Maximal degree in co-relation 58548. Up to 12135 conditions per place. [2024-11-19 14:04:16,443 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 206 selfloop transitions, 10 changer transitions 0/278 dead transitions. [2024-11-19 14:04:16,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 278 transitions, 1826 flow [2024-11-19 14:04:16,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:16,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2024-11-19 14:04:16,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6745562130177515 [2024-11-19 14:04:16,444 INFO L175 Difference]: Start difference. First operand has 206 places, 187 transitions, 928 flow. Second operand 4 states and 456 transitions. [2024-11-19 14:04:16,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 278 transitions, 1826 flow [2024-11-19 14:04:16,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 278 transitions, 1809 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:16,688 INFO L231 Difference]: Finished difference. Result has 204 places, 186 transitions, 939 flow [2024-11-19 14:04:16,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=204, PETRI_TRANSITIONS=186} [2024-11-19 14:04:16,688 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 57 predicate places. [2024-11-19 14:04:16,688 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 186 transitions, 939 flow [2024-11-19 14:04:16,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-11-19 14:04:16,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:16,689 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:16,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 14:04:16,689 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:16,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1824690144, now seen corresponding path program 1 times [2024-11-19 14:04:16,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:16,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119575851] [2024-11-19 14:04:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:16,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119575851] [2024-11-19 14:04:16,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119575851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:16,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435241317] [2024-11-19 14:04:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:16,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:16,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:16,781 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) [2024-11-19 14:04:16,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:04:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:16,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:04:16,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:16,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:16,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435241317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:16,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:16,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 14:04:16,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666138272] [2024-11-19 14:04:16,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:16,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:16,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:16,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:16,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:04:16,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:04:16,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 186 transitions, 939 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2024-11-19 14:04:16,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:16,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:04:16,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:18,736 INFO L124 PetriNetUnfolderBase]: 9939/19683 cut-off events. [2024-11-19 14:04:18,736 INFO L125 PetriNetUnfolderBase]: For 35353/36306 co-relation queries the response was YES. [2024-11-19 14:04:18,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54640 conditions, 19683 events. 9939/19683 cut-off events. For 35353/36306 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 172201 event pairs, 2110 based on Foata normal form. 1018/20216 useless extension candidates. Maximal degree in co-relation 54468. Up to 7038 conditions per place. [2024-11-19 14:04:18,867 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 317 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2024-11-19 14:04:18,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 384 transitions, 2579 flow [2024-11-19 14:04:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:18,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2024-11-19 14:04:18,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7149901380670611 [2024-11-19 14:04:18,868 INFO L175 Difference]: Start difference. First operand has 204 places, 186 transitions, 939 flow. Second operand 6 states and 725 transitions. [2024-11-19 14:04:18,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 384 transitions, 2579 flow [2024-11-19 14:04:19,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 384 transitions, 2523 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:19,055 INFO L231 Difference]: Finished difference. Result has 204 places, 183 transitions, 925 flow [2024-11-19 14:04:19,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=925, PETRI_PLACES=204, PETRI_TRANSITIONS=183} [2024-11-19 14:04:19,056 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 57 predicate places. [2024-11-19 14:04:19,056 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 183 transitions, 925 flow [2024-11-19 14:04:19,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2024-11-19 14:04:19,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:19,056 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:19,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 14:04:19,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 14:04:19,257 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:19,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash -730817931, now seen corresponding path program 1 times [2024-11-19 14:04:19,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:19,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658225942] [2024-11-19 14:04:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:19,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:19,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:19,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658225942] [2024-11-19 14:04:19,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658225942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:19,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577822214] [2024-11-19 14:04:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:19,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:19,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:19,339 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) [2024-11-19 14:04:19,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:04:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:19,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:04:19,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:19,489 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:19,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577822214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:19,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:19,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-19 14:04:19,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378969268] [2024-11-19 14:04:19,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:19,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:04:19,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:04:19,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:19,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:04:19,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 183 transitions, 925 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-19 14:04:19,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:19,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:04:19,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:21,019 INFO L124 PetriNetUnfolderBase]: 9443/19413 cut-off events. [2024-11-19 14:04:21,020 INFO L125 PetriNetUnfolderBase]: For 32097/32850 co-relation queries the response was YES. [2024-11-19 14:04:21,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52852 conditions, 19413 events. 9443/19413 cut-off events. For 32097/32850 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 174361 event pairs, 4796 based on Foata normal form. 830/19712 useless extension candidates. Maximal degree in co-relation 52681. Up to 9547 conditions per place. [2024-11-19 14:04:21,155 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/234 dead transitions. [2024-11-19 14:04:21,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 234 transitions, 1506 flow [2024-11-19 14:04:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:04:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:04:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2024-11-19 14:04:21,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7297830374753451 [2024-11-19 14:04:21,156 INFO L175 Difference]: Start difference. First operand has 204 places, 183 transitions, 925 flow. Second operand 3 states and 370 transitions. [2024-11-19 14:04:21,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 234 transitions, 1506 flow [2024-11-19 14:04:21,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 234 transitions, 1493 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-19 14:04:21,346 INFO L231 Difference]: Finished difference. Result has 200 places, 182 transitions, 920 flow [2024-11-19 14:04:21,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=200, PETRI_TRANSITIONS=182} [2024-11-19 14:04:21,346 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 53 predicate places. [2024-11-19 14:04:21,347 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 182 transitions, 920 flow [2024-11-19 14:04:21,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-19 14:04:21,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:21,347 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:21,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 14:04:21,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:21,548 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:21,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:21,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1832036224, now seen corresponding path program 1 times [2024-11-19 14:04:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:21,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113388475] [2024-11-19 14:04:21,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:21,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:21,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:21,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113388475] [2024-11-19 14:04:21,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113388475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:21,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223538934] [2024-11-19 14:04:21,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:21,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:21,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:21,634 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) [2024-11-19 14:04:21,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 14:04:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:21,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:04:21,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:21,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:21,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223538934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:21,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:21,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 14:04:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863414049] [2024-11-19 14:04:21,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:21,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:21,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:21,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:04:21,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:04:21,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 182 transitions, 920 flow. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2024-11-19 14:04:21,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:21,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:04:21,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:23,632 INFO L124 PetriNetUnfolderBase]: 10205/20308 cut-off events. [2024-11-19 14:04:23,633 INFO L125 PetriNetUnfolderBase]: For 33932/34840 co-relation queries the response was YES. [2024-11-19 14:04:23,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55788 conditions, 20308 events. 10205/20308 cut-off events. For 33932/34840 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 176635 event pairs, 2275 based on Foata normal form. 1000/20995 useless extension candidates. Maximal degree in co-relation 55619. Up to 7144 conditions per place. [2024-11-19 14:04:23,743 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 316 selfloop transitions, 5 changer transitions 0/378 dead transitions. [2024-11-19 14:04:23,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 378 transitions, 2552 flow [2024-11-19 14:04:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2024-11-19 14:04:23,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7090729783037475 [2024-11-19 14:04:23,745 INFO L175 Difference]: Start difference. First operand has 200 places, 182 transitions, 920 flow. Second operand 6 states and 719 transitions. [2024-11-19 14:04:23,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 378 transitions, 2552 flow [2024-11-19 14:04:23,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 378 transitions, 2532 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:23,928 INFO L231 Difference]: Finished difference. Result has 201 places, 179 transitions, 914 flow [2024-11-19 14:04:23,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=201, PETRI_TRANSITIONS=179} [2024-11-19 14:04:23,929 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 54 predicate places. [2024-11-19 14:04:23,929 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 179 transitions, 914 flow [2024-11-19 14:04:23,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2024-11-19 14:04:23,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:23,929 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:23,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:24,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:24,130 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:24,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2021377686, now seen corresponding path program 1 times [2024-11-19 14:04:24,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:24,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960008761] [2024-11-19 14:04:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:24,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:24,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:24,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960008761] [2024-11-19 14:04:24,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960008761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:24,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276279988] [2024-11-19 14:04:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:24,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:24,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:24,239 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:24,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 14:04:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:24,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:04:24,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:24,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:24,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276279988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:24,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:24,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-11-19 14:04:24,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622334801] [2024-11-19 14:04:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:24,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:24,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:24,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:24,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:04:24,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:04:24,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 179 transitions, 914 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2024-11-19 14:04:24,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:24,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:04:24,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:26,061 INFO L124 PetriNetUnfolderBase]: 9857/20508 cut-off events. [2024-11-19 14:04:26,061 INFO L125 PetriNetUnfolderBase]: For 33420/33992 co-relation queries the response was YES. [2024-11-19 14:04:26,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56524 conditions, 20508 events. 9857/20508 cut-off events. For 33420/33992 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 184391 event pairs, 6095 based on Foata normal form. 512/20662 useless extension candidates. Maximal degree in co-relation 56354. Up to 12260 conditions per place. [2024-11-19 14:04:26,217 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 160 selfloop transitions, 7 changer transitions 0/225 dead transitions. [2024-11-19 14:04:26,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 225 transitions, 1490 flow [2024-11-19 14:04:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:26,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2024-11-19 14:04:26,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6494082840236687 [2024-11-19 14:04:26,218 INFO L175 Difference]: Start difference. First operand has 201 places, 179 transitions, 914 flow. Second operand 4 states and 439 transitions. [2024-11-19 14:04:26,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 225 transitions, 1490 flow [2024-11-19 14:04:26,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 225 transitions, 1468 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:26,493 INFO L231 Difference]: Finished difference. Result has 199 places, 178 transitions, 915 flow [2024-11-19 14:04:26,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=915, PETRI_PLACES=199, PETRI_TRANSITIONS=178} [2024-11-19 14:04:26,494 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 52 predicate places. [2024-11-19 14:04:26,494 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 178 transitions, 915 flow [2024-11-19 14:04:26,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2024-11-19 14:04:26,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:26,494 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:26,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 14:04:26,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:26,695 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:26,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:26,695 INFO L85 PathProgramCache]: Analyzing trace with hash -958546339, now seen corresponding path program 1 times [2024-11-19 14:04:26,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:26,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438024155] [2024-11-19 14:04:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:26,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:26,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:26,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438024155] [2024-11-19 14:04:26,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438024155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:26,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813779442] [2024-11-19 14:04:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:26,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:26,801 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:26,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 14:04:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:26,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:04:26,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:26,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:26,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813779442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:26,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:26,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-19 14:04:26,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572742673] [2024-11-19 14:04:26,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:26,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:04:26,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:26,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:04:26,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:26,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-11-19 14:04:26,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 178 transitions, 915 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-19 14:04:26,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:26,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-11-19 14:04:26,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:28,608 INFO L124 PetriNetUnfolderBase]: 9689/19776 cut-off events. [2024-11-19 14:04:28,609 INFO L125 PetriNetUnfolderBase]: For 33694/34430 co-relation queries the response was YES. [2024-11-19 14:04:28,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54389 conditions, 19776 events. 9689/19776 cut-off events. For 33694/34430 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 174904 event pairs, 5011 based on Foata normal form. 820/20243 useless extension candidates. Maximal degree in co-relation 54219. Up to 9873 conditions per place. [2024-11-19 14:04:28,709 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/228 dead transitions. [2024-11-19 14:04:28,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 228 transitions, 1512 flow [2024-11-19 14:04:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:04:28,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:04:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-11-19 14:04:28,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7258382642998028 [2024-11-19 14:04:28,711 INFO L175 Difference]: Start difference. First operand has 199 places, 178 transitions, 915 flow. Second operand 3 states and 368 transitions. [2024-11-19 14:04:28,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 228 transitions, 1512 flow [2024-11-19 14:04:28,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 228 transitions, 1496 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:28,896 INFO L231 Difference]: Finished difference. Result has 197 places, 177 transitions, 913 flow [2024-11-19 14:04:28,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=913, PETRI_PLACES=197, PETRI_TRANSITIONS=177} [2024-11-19 14:04:28,896 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 50 predicate places. [2024-11-19 14:04:28,897 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 177 transitions, 913 flow [2024-11-19 14:04:28,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-19 14:04:28,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:28,897 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:28,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 14:04:29,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-19 14:04:29,097 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:29,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1761831245, now seen corresponding path program 1 times [2024-11-19 14:04:29,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927611598] [2024-11-19 14:04:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:29,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:29,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927611598] [2024-11-19 14:04:29,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927611598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:29,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853436522] [2024-11-19 14:04:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:29,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:29,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:29,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:29,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 14:04:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:29,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:04:29,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:29,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:29,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853436522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:29,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:29,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-11-19 14:04:29,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666853953] [2024-11-19 14:04:29,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:29,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:29,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:29,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:04:29,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-11-19 14:04:29,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 177 transitions, 913 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-11-19 14:04:29,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:29,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-11-19 14:04:29,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:31,005 INFO L124 PetriNetUnfolderBase]: 9689/20276 cut-off events. [2024-11-19 14:04:31,005 INFO L125 PetriNetUnfolderBase]: For 34583/35105 co-relation queries the response was YES. [2024-11-19 14:04:31,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55967 conditions, 20276 events. 9689/20276 cut-off events. For 34583/35105 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 182528 event pairs, 6395 based on Foata normal form. 582/20710 useless extension candidates. Maximal degree in co-relation 55799. Up to 12804 conditions per place. [2024-11-19 14:04:31,175 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 163 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2024-11-19 14:04:31,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 224 transitions, 1490 flow [2024-11-19 14:04:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2024-11-19 14:04:31,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6331360946745562 [2024-11-19 14:04:31,177 INFO L175 Difference]: Start difference. First operand has 197 places, 177 transitions, 913 flow. Second operand 4 states and 428 transitions. [2024-11-19 14:04:31,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 224 transitions, 1490 flow [2024-11-19 14:04:31,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 224 transitions, 1482 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:31,437 INFO L231 Difference]: Finished difference. Result has 198 places, 176 transitions, 913 flow [2024-11-19 14:04:31,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=913, PETRI_PLACES=198, PETRI_TRANSITIONS=176} [2024-11-19 14:04:31,438 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2024-11-19 14:04:31,438 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 176 transitions, 913 flow [2024-11-19 14:04:31,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-11-19 14:04:31,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:31,438 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:31,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:31,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-19 14:04:31,639 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:31,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:31,639 INFO L85 PathProgramCache]: Analyzing trace with hash -576461262, now seen corresponding path program 1 times [2024-11-19 14:04:31,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:31,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065908212] [2024-11-19 14:04:31,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:31,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:31,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:31,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065908212] [2024-11-19 14:04:31,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065908212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:31,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:31,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:31,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307120930] [2024-11-19 14:04:31,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:31,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:31,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:31,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:31,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:31,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:04:31,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 176 transitions, 913 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-11-19 14:04:31,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:31,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:04:31,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:33,434 INFO L124 PetriNetUnfolderBase]: 9683/19500 cut-off events. [2024-11-19 14:04:33,434 INFO L125 PetriNetUnfolderBase]: For 35651/36416 co-relation queries the response was YES. [2024-11-19 14:04:33,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54107 conditions, 19500 events. 9683/19500 cut-off events. For 35651/36416 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 171623 event pairs, 4996 based on Foata normal form. 768/20109 useless extension candidates. Maximal degree in co-relation 53937. Up to 9840 conditions per place. [2024-11-19 14:04:33,531 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 215 selfloop transitions, 6 changer transitions 0/276 dead transitions. [2024-11-19 14:04:33,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 276 transitions, 1848 flow [2024-11-19 14:04:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 479 transitions. [2024-11-19 14:04:33,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7085798816568047 [2024-11-19 14:04:33,532 INFO L175 Difference]: Start difference. First operand has 198 places, 176 transitions, 913 flow. Second operand 4 states and 479 transitions. [2024-11-19 14:04:33,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 276 transitions, 1848 flow [2024-11-19 14:04:33,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 276 transitions, 1836 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:33,683 INFO L231 Difference]: Finished difference. Result has 196 places, 175 transitions, 909 flow [2024-11-19 14:04:33,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=909, PETRI_PLACES=196, PETRI_TRANSITIONS=175} [2024-11-19 14:04:33,684 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 49 predicate places. [2024-11-19 14:04:33,684 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 175 transitions, 909 flow [2024-11-19 14:04:33,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-11-19 14:04:33,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:33,684 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:33,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 14:04:33,684 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:33,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1217806942, now seen corresponding path program 1 times [2024-11-19 14:04:33,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:33,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259309755] [2024-11-19 14:04:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:33,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:33,765 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:33,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:33,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259309755] [2024-11-19 14:04:33,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259309755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:33,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964511908] [2024-11-19 14:04:33,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:33,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:33,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:33,767 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:33,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 14:04:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:33,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:04:33,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:34,005 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:34,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:34,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964511908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:34,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:34,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-11-19 14:04:34,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270092049] [2024-11-19 14:04:34,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:34,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:34,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:34,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:34,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:04:34,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:04:34,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 175 transitions, 909 flow. Second operand has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2024-11-19 14:04:34,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:34,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:04:34,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:35,735 INFO L124 PetriNetUnfolderBase]: 10023/20594 cut-off events. [2024-11-19 14:04:35,735 INFO L125 PetriNetUnfolderBase]: For 35787/36193 co-relation queries the response was YES. [2024-11-19 14:04:35,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57065 conditions, 20594 events. 10023/20594 cut-off events. For 35787/36193 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 182194 event pairs, 6995 based on Foata normal form. 576/20972 useless extension candidates. Maximal degree in co-relation 56897. Up to 13892 conditions per place. [2024-11-19 14:04:35,898 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 260 selfloop transitions, 7 changer transitions 0/318 dead transitions. [2024-11-19 14:04:35,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 318 transitions, 2161 flow [2024-11-19 14:04:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:35,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 637 transitions. [2024-11-19 14:04:35,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-11-19 14:04:35,899 INFO L175 Difference]: Start difference. First operand has 196 places, 175 transitions, 909 flow. Second operand 6 states and 637 transitions. [2024-11-19 14:04:35,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 318 transitions, 2161 flow [2024-11-19 14:04:36,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 318 transitions, 2119 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-19 14:04:36,153 INFO L231 Difference]: Finished difference. Result has 193 places, 173 transitions, 867 flow [2024-11-19 14:04:36,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=867, PETRI_PLACES=193, PETRI_TRANSITIONS=173} [2024-11-19 14:04:36,153 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 46 predicate places. [2024-11-19 14:04:36,153 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 173 transitions, 867 flow [2024-11-19 14:04:36,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2024-11-19 14:04:36,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:36,153 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:36,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:36,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-19 14:04:36,354 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:36,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:36,354 INFO L85 PathProgramCache]: Analyzing trace with hash -2077224546, now seen corresponding path program 1 times [2024-11-19 14:04:36,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:36,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072777621] [2024-11-19 14:04:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:36,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:36,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072777621] [2024-11-19 14:04:36,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072777621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721067731] [2024-11-19 14:04:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:36,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:36,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:36,444 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:36,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 14:04:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:36,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:04:36,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:36,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:36,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721067731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:36,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:36,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-11-19 14:04:36,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603704600] [2024-11-19 14:04:36,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:36,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:36,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:36,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:36,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:04:36,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:04:36,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 173 transitions, 867 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-11-19 14:04:36,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:36,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:04:36,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:38,380 INFO L124 PetriNetUnfolderBase]: 9861/19948 cut-off events. [2024-11-19 14:04:38,380 INFO L125 PetriNetUnfolderBase]: For 29395/29969 co-relation queries the response was YES. [2024-11-19 14:04:38,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54069 conditions, 19948 events. 9861/19948 cut-off events. For 29395/29969 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 174146 event pairs, 6075 based on Foata normal form. 554/20326 useless extension candidates. Maximal degree in co-relation 53903. Up to 12220 conditions per place. [2024-11-19 14:04:38,480 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 161 selfloop transitions, 7 changer transitions 0/219 dead transitions. [2024-11-19 14:04:38,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 219 transitions, 1432 flow [2024-11-19 14:04:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:38,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2024-11-19 14:04:38,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6479289940828402 [2024-11-19 14:04:38,481 INFO L175 Difference]: Start difference. First operand has 193 places, 173 transitions, 867 flow. Second operand 4 states and 438 transitions. [2024-11-19 14:04:38,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 219 transitions, 1432 flow [2024-11-19 14:04:38,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 219 transitions, 1417 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:38,651 INFO L231 Difference]: Finished difference. Result has 192 places, 172 transitions, 870 flow [2024-11-19 14:04:38,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=870, PETRI_PLACES=192, PETRI_TRANSITIONS=172} [2024-11-19 14:04:38,652 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 45 predicate places. [2024-11-19 14:04:38,652 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 172 transitions, 870 flow [2024-11-19 14:04:38,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-11-19 14:04:38,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:38,652 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:38,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:38,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-19 14:04:38,853 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:38,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash -902688744, now seen corresponding path program 1 times [2024-11-19 14:04:38,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:38,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942631019] [2024-11-19 14:04:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:38,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942631019] [2024-11-19 14:04:38,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942631019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84220797] [2024-11-19 14:04:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:38,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:38,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:38,939 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:38,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 14:04:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:39,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:04:39,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:39,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:39,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84220797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:39,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:39,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-11-19 14:04:39,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710536551] [2024-11-19 14:04:39,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:39,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:39,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:39,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:39,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 14:04:39,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:04:39,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 172 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2024-11-19 14:04:39,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:39,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:04:39,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:41,012 INFO L124 PetriNetUnfolderBase]: 10367/20690 cut-off events. [2024-11-19 14:04:41,012 INFO L125 PetriNetUnfolderBase]: For 32252/32655 co-relation queries the response was YES. [2024-11-19 14:04:41,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56579 conditions, 20690 events. 10367/20690 cut-off events. For 32252/32655 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 178448 event pairs, 6695 based on Foata normal form. 553/21069 useless extension candidates. Maximal degree in co-relation 56413. Up to 13348 conditions per place. [2024-11-19 14:04:41,146 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 216 selfloop transitions, 10 changer transitions 88/363 dead transitions. [2024-11-19 14:04:41,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 363 transitions, 2514 flow [2024-11-19 14:04:41,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 14:04:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 14:04:41,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 746 transitions. [2024-11-19 14:04:41,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6306001690617076 [2024-11-19 14:04:41,147 INFO L175 Difference]: Start difference. First operand has 192 places, 172 transitions, 870 flow. Second operand 7 states and 746 transitions. [2024-11-19 14:04:41,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 363 transitions, 2514 flow [2024-11-19 14:04:41,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 363 transitions, 2480 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:41,350 INFO L231 Difference]: Finished difference. Result has 194 places, 171 transitions, 876 flow [2024-11-19 14:04:41,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=876, PETRI_PLACES=194, PETRI_TRANSITIONS=171} [2024-11-19 14:04:41,351 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 47 predicate places. [2024-11-19 14:04:41,351 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 171 transitions, 876 flow [2024-11-19 14:04:41,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2024-11-19 14:04:41,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:41,351 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:41,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:41,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:41,552 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:41,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash 30518515, now seen corresponding path program 1 times [2024-11-19 14:04:41,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:41,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368234466] [2024-11-19 14:04:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:41,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:41,642 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:41,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:41,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368234466] [2024-11-19 14:04:41,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368234466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:41,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605286605] [2024-11-19 14:04:41,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:41,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:41,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:41,644 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:41,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 14:04:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:41,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:04:41,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:41,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:41,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605286605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:41,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:41,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-11-19 14:04:41,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889352123] [2024-11-19 14:04:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:41,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:41,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:41,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:41,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:04:41,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-11-19 14:04:41,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 171 transitions, 876 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2024-11-19 14:04:41,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:41,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-11-19 14:04:41,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:43,532 INFO L124 PetriNetUnfolderBase]: 9689/19576 cut-off events. [2024-11-19 14:04:43,532 INFO L125 PetriNetUnfolderBase]: For 33287/33829 co-relation queries the response was YES. [2024-11-19 14:04:43,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53756 conditions, 19576 events. 9689/19576 cut-off events. For 33287/33829 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 170294 event pairs, 6379 based on Foata normal form. 632/20026 useless extension candidates. Maximal degree in co-relation 53591. Up to 12772 conditions per place. [2024-11-19 14:04:43,613 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 162 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2024-11-19 14:04:43,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 217 transitions, 1443 flow [2024-11-19 14:04:43,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:43,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-11-19 14:04:43,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2024-11-19 14:04:43,614 INFO L175 Difference]: Start difference. First operand has 194 places, 171 transitions, 876 flow. Second operand 4 states and 427 transitions. [2024-11-19 14:04:43,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 217 transitions, 1443 flow [2024-11-19 14:04:43,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 217 transitions, 1400 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-19 14:04:43,763 INFO L231 Difference]: Finished difference. Result has 191 places, 170 transitions, 857 flow [2024-11-19 14:04:43,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=857, PETRI_PLACES=191, PETRI_TRANSITIONS=170} [2024-11-19 14:04:43,764 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 44 predicate places. [2024-11-19 14:04:43,764 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 170 transitions, 857 flow [2024-11-19 14:04:43,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2024-11-19 14:04:43,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:43,764 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:43,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:43,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-19 14:04:43,965 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:43,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1214935186, now seen corresponding path program 1 times [2024-11-19 14:04:43,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:43,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316070467] [2024-11-19 14:04:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:43,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:44,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316070467] [2024-11-19 14:04:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316070467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:44,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:44,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:44,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81857082] [2024-11-19 14:04:44,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:44,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:44,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:44,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:44,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-11-19 14:04:44,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 170 transitions, 857 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-11-19 14:04:44,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:44,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-11-19 14:04:44,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:45,577 INFO L124 PetriNetUnfolderBase]: 9689/19204 cut-off events. [2024-11-19 14:04:45,577 INFO L125 PetriNetUnfolderBase]: For 32430/33076 co-relation queries the response was YES. [2024-11-19 14:04:45,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52003 conditions, 19204 events. 9689/19204 cut-off events. For 32430/33076 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 164438 event pairs, 5011 based on Foata normal form. 716/19775 useless extension candidates. Maximal degree in co-relation 51839. Up to 9873 conditions per place. [2024-11-19 14:04:45,695 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 212 selfloop transitions, 6 changer transitions 0/267 dead transitions. [2024-11-19 14:04:45,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 267 transitions, 1735 flow [2024-11-19 14:04:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:45,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2024-11-19 14:04:45,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7041420118343196 [2024-11-19 14:04:45,696 INFO L175 Difference]: Start difference. First operand has 191 places, 170 transitions, 857 flow. Second operand 4 states and 476 transitions. [2024-11-19 14:04:45,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 267 transitions, 1735 flow [2024-11-19 14:04:45,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 267 transitions, 1723 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:45,855 INFO L231 Difference]: Finished difference. Result has 189 places, 169 transitions, 853 flow [2024-11-19 14:04:45,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=853, PETRI_PLACES=189, PETRI_TRANSITIONS=169} [2024-11-19 14:04:45,856 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 42 predicate places. [2024-11-19 14:04:45,856 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 169 transitions, 853 flow [2024-11-19 14:04:45,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-11-19 14:04:45,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:45,856 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:45,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 14:04:45,856 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:45,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:45,856 INFO L85 PathProgramCache]: Analyzing trace with hash 946074726, now seen corresponding path program 1 times [2024-11-19 14:04:45,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:45,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668143500] [2024-11-19 14:04:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:45,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:45,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:45,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668143500] [2024-11-19 14:04:45,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668143500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:45,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282426673] [2024-11-19 14:04:45,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:45,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:45,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:45,945 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:45,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 14:04:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:46,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:04:46,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:46,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:46,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282426673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:46,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:46,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-11-19 14:04:46,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583596228] [2024-11-19 14:04:46,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:46,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:46,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:04:46,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:04:46,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 169 transitions, 853 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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) [2024-11-19 14:04:46,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:46,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:04:46,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:47,813 INFO L124 PetriNetUnfolderBase]: 10033/19810 cut-off events. [2024-11-19 14:04:47,813 INFO L125 PetriNetUnfolderBase]: For 32043/32513 co-relation queries the response was YES. [2024-11-19 14:04:47,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53615 conditions, 19810 events. 10033/19810 cut-off events. For 32043/32513 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 168693 event pairs, 6987 based on Foata normal form. 666/20311 useless extension candidates. Maximal degree in co-relation 53453. Up to 13876 conditions per place. [2024-11-19 14:04:47,928 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 257 selfloop transitions, 7 changer transitions 0/309 dead transitions. [2024-11-19 14:04:47,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 309 transitions, 2027 flow [2024-11-19 14:04:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 634 transitions. [2024-11-19 14:04:47,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6252465483234714 [2024-11-19 14:04:47,930 INFO L175 Difference]: Start difference. First operand has 189 places, 169 transitions, 853 flow. Second operand 6 states and 634 transitions. [2024-11-19 14:04:47,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 309 transitions, 2027 flow [2024-11-19 14:04:48,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 309 transitions, 1985 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-19 14:04:48,081 INFO L231 Difference]: Finished difference. Result has 186 places, 167 transitions, 811 flow [2024-11-19 14:04:48,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=811, PETRI_PLACES=186, PETRI_TRANSITIONS=167} [2024-11-19 14:04:48,082 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 39 predicate places. [2024-11-19 14:04:48,082 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 167 transitions, 811 flow [2024-11-19 14:04:48,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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) [2024-11-19 14:04:48,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:48,082 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 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] [2024-11-19 14:04:48,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:48,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-19 14:04:48,283 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-19 14:04:48,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash -736452776, now seen corresponding path program 1 times [2024-11-19 14:04:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:48,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678066300] [2024-11-19 14:04:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:48,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:48,379 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 14:04:48,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:48,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678066300] [2024-11-19 14:04:48,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678066300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:48,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139499589] [2024-11-19 14:04:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:48,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:48,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:48,381 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:48,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 14:04:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:48,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:04:48,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:48,610 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 14:04:48,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:48,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139499589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:48,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:48,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-11-19 14:04:48,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192276379] [2024-11-19 14:04:48,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:48,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:48,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:48,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:48,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 14:04:48,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-11-19 14:04:48,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 167 transitions, 811 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-11-19 14:04:48,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:48,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-11-19 14:04:48,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:50,221 INFO L124 PetriNetUnfolderBase]: 10377/19948 cut-off events. [2024-11-19 14:04:50,222 INFO L125 PetriNetUnfolderBase]: For 26167/26643 co-relation queries the response was YES. [2024-11-19 14:04:50,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52785 conditions, 19948 events. 10377/19948 cut-off events. For 26167/26643 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 165953 event pairs, 6683 based on Foata normal form. 666/20448 useless extension candidates. Maximal degree in co-relation 52625. Up to 13324 conditions per place. [2024-11-19 14:04:50,320 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 0 selfloop transitions, 0 changer transitions 354/354 dead transitions. [2024-11-19 14:04:50,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 354 transitions, 2303 flow [2024-11-19 14:04:50,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 14:04:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 14:04:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 742 transitions. [2024-11-19 14:04:50,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6272189349112426 [2024-11-19 14:04:50,322 INFO L175 Difference]: Start difference. First operand has 186 places, 167 transitions, 811 flow. Second operand 7 states and 742 transitions. [2024-11-19 14:04:50,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 354 transitions, 2303 flow [2024-11-19 14:04:50,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 354 transitions, 2292 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:50,428 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2024-11-19 14:04:50,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2024-11-19 14:04:50,428 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 40 predicate places. [2024-11-19 14:04:50,428 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2024-11-19 14:04:50,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-11-19 14:04:50,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 80 remaining) [2024-11-19 14:04:50,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 80 remaining) [2024-11-19 14:04:50,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 80 remaining) [2024-11-19 14:04:50,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 80 remaining) [2024-11-19 14:04:50,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 80 remaining) [2024-11-19 14:04:50,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 80 remaining) [2024-11-19 14:04:50,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 80 remaining) [2024-11-19 14:04:50,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 80 remaining) [2024-11-19 14:04:50,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 80 remaining) [2024-11-19 14:04:50,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 80 remaining) [2024-11-19 14:04:50,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 80 remaining) [2024-11-19 14:04:50,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 80 remaining) [2024-11-19 14:04:50,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 14:04:50,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:50,637 INFO L407 BasicCegarLoop]: Path program histogram: [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:50,642 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:04:50,643 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:04:50,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:04:50 BasicIcfg [2024-11-19 14:04:50,648 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:04:50,649 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:04:50,649 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:04:50,649 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:04:50,650 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:29" (3/4) ... [2024-11-19 14:04:50,652 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:04:50,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:04:50,654 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:04:50,659 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 160 nodes and edges [2024-11-19 14:04:50,660 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-19 14:04:50,660 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 14:04:50,660 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:04:50,749 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:04:50,750 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:04:50,750 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:04:50,750 INFO L158 Benchmark]: Toolchain (without parser) took 83196.74ms. Allocated memory was 148.9MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 114.8MB in the beginning and 3.7GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-19 14:04:50,750 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 104.9MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:04:50,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.90ms. Allocated memory is still 148.9MB. Free memory was 114.8MB in the beginning and 98.1MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 14:04:50,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.17ms. Allocated memory is still 148.9MB. Free memory was 98.1MB in the beginning and 94.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:04:50,751 INFO L158 Benchmark]: Boogie Preprocessor took 54.91ms. Allocated memory is still 148.9MB. Free memory was 94.9MB in the beginning and 90.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:04:50,751 INFO L158 Benchmark]: RCFGBuilder took 1176.48ms. Allocated memory was 148.9MB in the beginning and 201.3MB in the end (delta: 52.4MB). Free memory was 90.7MB in the beginning and 103.8MB in the end (delta: -13.1MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2024-11-19 14:04:50,751 INFO L158 Benchmark]: TraceAbstraction took 81536.13ms. Allocated memory was 201.3MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 102.8MB in the beginning and 3.7GB in the end (delta: -3.6GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-19 14:04:50,751 INFO L158 Benchmark]: Witness Printer took 101.06ms. Allocated memory is still 5.2GB. Free memory was 3.7GB in the beginning and 3.7GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 14:04:50,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 104.9MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.90ms. Allocated memory is still 148.9MB. Free memory was 114.8MB in the beginning and 98.1MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.17ms. Allocated memory is still 148.9MB. Free memory was 98.1MB in the beginning and 94.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.91ms. Allocated memory is still 148.9MB. Free memory was 94.9MB in the beginning and 90.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1176.48ms. Allocated memory was 148.9MB in the beginning and 201.3MB in the end (delta: 52.4MB). Free memory was 90.7MB in the beginning and 103.8MB in the end (delta: -13.1MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * TraceAbstraction took 81536.13ms. Allocated memory was 201.3MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 102.8MB in the beginning and 3.7GB in the end (delta: -3.6GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 101.06ms. Allocated memory is still 5.2GB. Free memory was 3.7GB in the beginning and 3.7GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 268 locations, 80 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 81.4s, OverallIterations: 41, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 70.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5727 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4955 mSDsluCounter, 648 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 400 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14473 IncrementalHoareTripleChecker+Invalid, 14873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 400 mSolverCounterUnsat, 298 mSDtfsCounter, 14473 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 967 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=939occurred in iteration=27, InterpolantAutomatonStates: 203, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2331 NumberOfCodeBlocks, 2259 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 2339 ConstructedInterpolants, 0 QuantifiedInterpolants, 5639 SizeOfPredicates, 36 NumberOfNonLiveVariables, 4437 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 62 InterpolantComputations, 37 PerfectInterpolantSequences, 3189/3291 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:04:50,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE