./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/array-eq-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/array-eq-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 6897befed0dbbae24492a1e82d50fcd0be6b3857b241d882a904d02a513d7a6d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:20:46,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:20:46,855 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:20:46,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:20:46,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:20:46,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:20:46,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:20:46,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:20:46,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:20:46,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:20:46,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:20:46,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:20:46,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:20:46,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:20:46,917 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:20:46,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:20:46,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:20:46,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:20:46,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:20:46,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:20:46,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:20:46,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:20:46,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:20:46,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:20:46,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:20:46,923 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:20:46,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:20:46,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:20:46,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:20:46,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:20:46,924 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:20:46,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:20:46,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:20:46,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:20:46,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:20:46,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:20:46,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:20:46,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:20:46,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:20:46,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:20:46,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:20:46,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:20:46,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:20:46,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:20:46,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6897befed0dbbae24492a1e82d50fcd0be6b3857b241d882a904d02a513d7a6d [2024-11-10 22:20:47,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:20:47,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:20:47,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:20:47,201 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:20:47,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:20:47,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2024-11-10 22:20:48,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:20:48,644 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:20:48,645 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2024-11-10 22:20:48,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95865665a/82e424a03f414baeb6c9d632a5dd9d2c/FLAGb4b27a0fb [2024-11-10 22:20:48,664 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95865665a/82e424a03f414baeb6c9d632a5dd9d2c [2024-11-10 22:20:48,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:20:48,667 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:20:48,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:20:48,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:20:48,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:20:48,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db0c75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48, skipping insertion in model container [2024-11-10 22:20:48,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:20:48,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:20:48,848 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:20:48,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:20:48,876 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:20:48,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48 WrapperNode [2024-11-10 22:20:48,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:20:48,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:20:48,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:20:48,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:20:48,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,904 INFO L138 Inliner]: procedures = 22, calls = 20, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 109 [2024-11-10 22:20:48,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:20:48,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:20:48,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:20:48,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:20:48,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,914 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,925 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 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]. [2024-11-10 22:20:48,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,931 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:20:48,940 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:20:48,940 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:20:48,940 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:20:48,942 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (1/1) ... [2024-11-10 22:20:48,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:20:48,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:48,974 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) [2024-11-10 22:20:48,978 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 [2024-11-10 22:20:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:20:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:20:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:20:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:20:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:20:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:20:49,027 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:20:49,125 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:20:49,127 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:20:49,367 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:20:49,367 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:20:49,517 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:20:49,517 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:20:49,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:49 BoogieIcfgContainer [2024-11-10 22:20:49,518 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:20:49,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:20:49,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:20:49,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:20:49,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:20:48" (1/3) ... [2024-11-10 22:20:49,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0d8147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:49, skipping insertion in model container [2024-11-10 22:20:49,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:48" (2/3) ... [2024-11-10 22:20:49,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0d8147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:49, skipping insertion in model container [2024-11-10 22:20:49,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:49" (3/3) ... [2024-11-10 22:20:49,531 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2024-11-10 22:20:49,545 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:20:49,545 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-10 22:20:49,545 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:20:49,594 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:20:49,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2024-11-10 22:20:49,663 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2024-11-10 22:20:49,663 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:20:49,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 10/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 35. Up to 3 conditions per place. [2024-11-10 22:20:49,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2024-11-10 22:20:49,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2024-11-10 22:20:49,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:20:49,688 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;@48256c8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:20:49,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-10 22:20:49,695 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:20:49,696 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:20:49,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:20:49,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:49,700 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:20:49,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:49,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:49,705 INFO L85 PathProgramCache]: Analyzing trace with hash 12156198, now seen corresponding path program 1 times [2024-11-10 22:20:49,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:49,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837252978] [2024-11-10 22:20:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:49,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:49,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837252978] [2024-11-10 22:20:49,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837252978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:49,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:49,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:20:49,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053470497] [2024-11-10 22:20:49,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:49,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:49,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:49,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:50,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-11-10 22:20:50,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-10 22:20:50,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:50,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-11-10 22:20:50,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:50,184 INFO L124 PetriNetUnfolderBase]: 158/353 cut-off events. [2024-11-10 22:20:50,185 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-10 22:20:50,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 353 events. 158/353 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1663 event pairs, 84 based on Foata normal form. 54/344 useless extension candidates. Maximal degree in co-relation 528. Up to 233 conditions per place. [2024-11-10 22:20:50,195 INFO L140 encePairwiseOnDemand]: 37/52 looper letters, 25 selfloop transitions, 7 changer transitions 0/50 dead transitions. [2024-11-10 22:20:50,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 50 transitions, 173 flow [2024-11-10 22:20:50,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:50,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-10 22:20:50,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5865384615384616 [2024-11-10 22:20:50,210 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 4 states and 122 transitions. [2024-11-10 22:20:50,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 50 transitions, 173 flow [2024-11-10 22:20:50,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 50 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:20:50,215 INFO L231 Difference]: Finished difference. Result has 48 places, 50 transitions, 152 flow [2024-11-10 22:20:50,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=48, PETRI_TRANSITIONS=50} [2024-11-10 22:20:50,220 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 3 predicate places. [2024-11-10 22:20:50,220 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 152 flow [2024-11-10 22:20:50,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-10 22:20:50,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:50,221 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:20:50,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:20:50,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:50,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash -530099221, now seen corresponding path program 1 times [2024-11-10 22:20:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:50,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265920067] [2024-11-10 22:20:50,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:50,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:50,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:50,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:50,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265920067] [2024-11-10 22:20:50,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265920067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:50,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251049906] [2024-11-10 22:20:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:50,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:50,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:50,344 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) [2024-11-10 22:20:50,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:20:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:50,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:20:50,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:50,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:50,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:20:50,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251049906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:50,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:20:50,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:20:50,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977154483] [2024-11-10 22:20:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:50,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:20:50,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:50,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:20:50,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:20:50,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-11-10 22:20:50,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 50 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-11-10 22:20:50,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:50,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-11-10 22:20:50,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:50,632 INFO L124 PetriNetUnfolderBase]: 158/351 cut-off events. [2024-11-10 22:20:50,632 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-10 22:20:50,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 351 events. 158/351 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1641 event pairs, 84 based on Foata normal form. 2/290 useless extension candidates. Maximal degree in co-relation 572. Up to 223 conditions per place. [2024-11-10 22:20:50,640 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 18 selfloop transitions, 12 changer transitions 0/48 dead transitions. [2024-11-10 22:20:50,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 48 transitions, 204 flow [2024-11-10 22:20:50,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:20:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:20:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-11-10 22:20:50,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2024-11-10 22:20:50,642 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 152 flow. Second operand 6 states and 152 transitions. [2024-11-10 22:20:50,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 48 transitions, 204 flow [2024-11-10 22:20:50,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 48 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:20:50,645 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 168 flow [2024-11-10 22:20:50,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-10 22:20:50,647 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 6 predicate places. [2024-11-10 22:20:50,647 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 168 flow [2024-11-10 22:20:50,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-11-10 22:20:50,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:50,648 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:20:50,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:20:50,848 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 [2024-11-10 22:20:50,849 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:50,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash 746793665, now seen corresponding path program 1 times [2024-11-10 22:20:50,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:50,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198636474] [2024-11-10 22:20:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:50,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:50,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198636474] [2024-11-10 22:20:50,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198636474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:50,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934961400] [2024-11-10 22:20:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:50,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:50,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:50,960 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) [2024-11-10 22:20:50,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:20:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:51,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:20:51,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:51,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:51,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:51,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934961400] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:51,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:51,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-10 22:20:51,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537914352] [2024-11-10 22:20:51,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:51,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:20:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:20:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:20:51,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-11-10 22:20:51,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 168 flow. Second operand has 12 states, 12 states have (on average 21.083333333333332) internal successors, (253), 12 states have internal predecessors, (253), 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) [2024-11-10 22:20:51,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:51,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-11-10 22:20:51,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:51,329 INFO L124 PetriNetUnfolderBase]: 164/387 cut-off events. [2024-11-10 22:20:51,329 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-10 22:20:51,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 387 events. 164/387 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1942 event pairs, 84 based on Foata normal form. 6/332 useless extension candidates. Maximal degree in co-relation 574. Up to 234 conditions per place. [2024-11-10 22:20:51,332 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 23 selfloop transitions, 25 changer transitions 0/66 dead transitions. [2024-11-10 22:20:51,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 378 flow [2024-11-10 22:20:51,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:20:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:20:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 254 transitions. [2024-11-10 22:20:51,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48846153846153845 [2024-11-10 22:20:51,353 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 168 flow. Second operand 10 states and 254 transitions. [2024-11-10 22:20:51,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 378 flow [2024-11-10 22:20:51,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 320 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-10 22:20:51,358 INFO L231 Difference]: Finished difference. Result has 58 places, 66 transitions, 308 flow [2024-11-10 22:20:51,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=308, PETRI_PLACES=58, PETRI_TRANSITIONS=66} [2024-11-10 22:20:51,359 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 13 predicate places. [2024-11-10 22:20:51,359 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 66 transitions, 308 flow [2024-11-10 22:20:51,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.083333333333332) internal successors, (253), 12 states have internal predecessors, (253), 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) [2024-11-10 22:20:51,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:51,360 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:51,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:20:51,560 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 [2024-11-10 22:20:51,562 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:51,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:51,562 INFO L85 PathProgramCache]: Analyzing trace with hash -130739414, now seen corresponding path program 1 times [2024-11-10 22:20:51,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:51,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059077367] [2024-11-10 22:20:51,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:51,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:51,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:51,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059077367] [2024-11-10 22:20:51,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059077367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:51,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:51,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:20:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195227093] [2024-11-10 22:20:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:51,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:51,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:51,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-10 22:20:51,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 66 transitions, 308 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-10 22:20:51,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:51,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-10 22:20:51,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:51,737 INFO L124 PetriNetUnfolderBase]: 286/594 cut-off events. [2024-11-10 22:20:51,737 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2024-11-10 22:20:51,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 594 events. 286/594 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2997 event pairs, 51 based on Foata normal form. 14/522 useless extension candidates. Maximal degree in co-relation 1098. Up to 258 conditions per place. [2024-11-10 22:20:51,741 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 67 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2024-11-10 22:20:51,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 88 transitions, 497 flow [2024-11-10 22:20:51,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:51,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-10 22:20:51,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6538461538461539 [2024-11-10 22:20:51,744 INFO L175 Difference]: Start difference. First operand has 58 places, 66 transitions, 308 flow. Second operand 4 states and 136 transitions. [2024-11-10 22:20:51,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 88 transitions, 497 flow [2024-11-10 22:20:51,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 88 transitions, 473 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:51,747 INFO L231 Difference]: Finished difference. Result has 61 places, 68 transitions, 306 flow [2024-11-10 22:20:51,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=61, PETRI_TRANSITIONS=68} [2024-11-10 22:20:51,748 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 16 predicate places. [2024-11-10 22:20:51,748 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 68 transitions, 306 flow [2024-11-10 22:20:51,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-10 22:20:51,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:51,748 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:51,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:20:51,748 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:51,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1415395010, now seen corresponding path program 1 times [2024-11-10 22:20:51,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:51,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933440491] [2024-11-10 22:20:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:51,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:51,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:51,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:51,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933440491] [2024-11-10 22:20:51,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933440491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:51,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:51,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:20:51,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277692040] [2024-11-10 22:20:51,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:51,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:51,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:51,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:51,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:51,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-10 22:20:51,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 68 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-10 22:20:51,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:51,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-10 22:20:51,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:51,902 INFO L124 PetriNetUnfolderBase]: 454/909 cut-off events. [2024-11-10 22:20:51,902 INFO L125 PetriNetUnfolderBase]: For 271/295 co-relation queries the response was YES. [2024-11-10 22:20:51,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1898 conditions, 909 events. 454/909 cut-off events. For 271/295 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4816 event pairs, 98 based on Foata normal form. 22/849 useless extension candidates. Maximal degree in co-relation 1827. Up to 393 conditions per place. [2024-11-10 22:20:51,906 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 70 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-11-10 22:20:51,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 91 transitions, 522 flow [2024-11-10 22:20:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:51,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2024-11-10 22:20:51,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6394230769230769 [2024-11-10 22:20:51,907 INFO L175 Difference]: Start difference. First operand has 61 places, 68 transitions, 306 flow. Second operand 4 states and 133 transitions. [2024-11-10 22:20:51,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 91 transitions, 522 flow [2024-11-10 22:20:51,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 518 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:20:51,911 INFO L231 Difference]: Finished difference. Result has 65 places, 70 transitions, 326 flow [2024-11-10 22:20:51,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=326, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2024-11-10 22:20:51,911 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 20 predicate places. [2024-11-10 22:20:51,911 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 326 flow [2024-11-10 22:20:51,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-10 22:20:51,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:51,912 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:51,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:20:51,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:51,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:51,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1453713689, now seen corresponding path program 1 times [2024-11-10 22:20:51,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:51,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85039084] [2024-11-10 22:20:51,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:51,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:20:51,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:51,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85039084] [2024-11-10 22:20:51,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85039084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:51,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:51,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:51,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113443396] [2024-11-10 22:20:51,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:51,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:51,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:51,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:52,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-10 22:20:52,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-10 22:20:52,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:52,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-10 22:20:52,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:52,147 INFO L124 PetriNetUnfolderBase]: 447/1027 cut-off events. [2024-11-10 22:20:52,147 INFO L125 PetriNetUnfolderBase]: For 411/413 co-relation queries the response was YES. [2024-11-10 22:20:52,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2272 conditions, 1027 events. 447/1027 cut-off events. For 411/413 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6101 event pairs, 288 based on Foata normal form. 18/1011 useless extension candidates. Maximal degree in co-relation 2166. Up to 628 conditions per place. [2024-11-10 22:20:52,153 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 77 selfloop transitions, 5 changer transitions 1/101 dead transitions. [2024-11-10 22:20:52,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 101 transitions, 632 flow [2024-11-10 22:20:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:20:52,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:20:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-10 22:20:52,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2024-11-10 22:20:52,155 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 326 flow. Second operand 5 states and 158 transitions. [2024-11-10 22:20:52,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 101 transitions, 632 flow [2024-11-10 22:20:52,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 101 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:20:52,161 INFO L231 Difference]: Finished difference. Result has 71 places, 73 transitions, 364 flow [2024-11-10 22:20:52,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=364, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2024-11-10 22:20:52,161 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 26 predicate places. [2024-11-10 22:20:52,162 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 364 flow [2024-11-10 22:20:52,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-10 22:20:52,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:52,162 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:52,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:20:52,162 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:52,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1675571035, now seen corresponding path program 1 times [2024-11-10 22:20:52,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:52,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872257927] [2024-11-10 22:20:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:52,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:20:52,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:52,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872257927] [2024-11-10 22:20:52,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872257927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:52,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:52,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:52,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188965797] [2024-11-10 22:20:52,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:52,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:52,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:52,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:52,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:52,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-10 22:20:52,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-11-10 22:20:52,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:52,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-10 22:20:52,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:52,353 INFO L124 PetriNetUnfolderBase]: 400/919 cut-off events. [2024-11-10 22:20:52,353 INFO L125 PetriNetUnfolderBase]: For 449/451 co-relation queries the response was YES. [2024-11-10 22:20:52,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 919 events. 400/919 cut-off events. For 449/451 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5249 event pairs, 256 based on Foata normal form. 3/889 useless extension candidates. Maximal degree in co-relation 1968. Up to 628 conditions per place. [2024-11-10 22:20:52,358 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 59 selfloop transitions, 4 changer transitions 14/95 dead transitions. [2024-11-10 22:20:52,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 95 transitions, 621 flow [2024-11-10 22:20:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:20:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:20:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-10 22:20:52,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5923076923076923 [2024-11-10 22:20:52,359 INFO L175 Difference]: Start difference. First operand has 71 places, 73 transitions, 364 flow. Second operand 5 states and 154 transitions. [2024-11-10 22:20:52,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 95 transitions, 621 flow [2024-11-10 22:20:52,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 95 transitions, 619 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:20:52,363 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 364 flow [2024-11-10 22:20:52,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=364, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2024-11-10 22:20:52,363 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 30 predicate places. [2024-11-10 22:20:52,364 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 364 flow [2024-11-10 22:20:52,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-11-10 22:20:52,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:52,364 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-10 22:20:52,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:20:52,364 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:52,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:52,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1508298578, now seen corresponding path program 2 times [2024-11-10 22:20:52,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:52,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762352172] [2024-11-10 22:20:52,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:52,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:52,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:52,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762352172] [2024-11-10 22:20:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762352172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288245896] [2024-11-10 22:20:52,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:20:52,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:52,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:52,487 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) [2024-11-10 22:20:52,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:20:52,533 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:20:52,533 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:20:52,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:20:52,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:52,585 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:20:52,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:20:52,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288245896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:52,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:52,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-10 22:20:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043875357] [2024-11-10 22:20:52,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:52,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 22:20:52,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:52,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 22:20:52,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 22:20:52,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 52 [2024-11-10 22:20:52,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 364 flow. Second operand has 14 states, 14 states have (on average 19.142857142857142) internal successors, (268), 14 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) [2024-11-10 22:20:52,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:52,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 52 [2024-11-10 22:20:52,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:52,942 INFO L124 PetriNetUnfolderBase]: 402/935 cut-off events. [2024-11-10 22:20:52,942 INFO L125 PetriNetUnfolderBase]: For 576/578 co-relation queries the response was YES. [2024-11-10 22:20:52,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2166 conditions, 935 events. 402/935 cut-off events. For 576/578 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5473 event pairs, 256 based on Foata normal form. 4/904 useless extension candidates. Maximal degree in co-relation 2008. Up to 634 conditions per place. [2024-11-10 22:20:52,947 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 30 selfloop transitions, 40 changer transitions 0/86 dead transitions. [2024-11-10 22:20:52,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 86 transitions, 559 flow [2024-11-10 22:20:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 22:20:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-10 22:20:52,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 500 transitions. [2024-11-10 22:20:52,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40064102564102566 [2024-11-10 22:20:52,949 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 364 flow. Second operand 24 states and 500 transitions. [2024-11-10 22:20:52,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 86 transitions, 559 flow [2024-11-10 22:20:52,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 86 transitions, 552 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:20:52,952 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 496 flow [2024-11-10 22:20:52,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=496, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2024-11-10 22:20:52,952 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 52 predicate places. [2024-11-10 22:20:52,953 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 496 flow [2024-11-10 22:20:52,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.142857142857142) internal successors, (268), 14 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) [2024-11-10 22:20:52,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:52,953 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:52,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:20:53,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:53,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:53,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:53,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1494077204, now seen corresponding path program 1 times [2024-11-10 22:20:53,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:53,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707435278] [2024-11-10 22:20:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:53,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:20:53,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:53,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707435278] [2024-11-10 22:20:53,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707435278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:53,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:53,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:20:53,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364279900] [2024-11-10 22:20:53,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:53,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:20:53,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:53,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:20:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:20:53,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-10 22:20:53,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 82 transitions, 496 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-10 22:20:53,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:53,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-10 22:20:53,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:53,352 INFO L124 PetriNetUnfolderBase]: 448/1041 cut-off events. [2024-11-10 22:20:53,352 INFO L125 PetriNetUnfolderBase]: For 743/763 co-relation queries the response was YES. [2024-11-10 22:20:53,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 1041 events. 448/1041 cut-off events. For 743/763 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6142 event pairs, 171 based on Foata normal form. 18/1028 useless extension candidates. Maximal degree in co-relation 2369. Up to 357 conditions per place. [2024-11-10 22:20:53,358 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 79 selfloop transitions, 12 changer transitions 1/109 dead transitions. [2024-11-10 22:20:53,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 767 flow [2024-11-10 22:20:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:20:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:20:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2024-11-10 22:20:53,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2024-11-10 22:20:53,359 INFO L175 Difference]: Start difference. First operand has 97 places, 82 transitions, 496 flow. Second operand 6 states and 186 transitions. [2024-11-10 22:20:53,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 767 flow [2024-11-10 22:20:53,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 109 transitions, 690 flow, removed 11 selfloop flow, removed 9 redundant places. [2024-11-10 22:20:53,363 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 446 flow [2024-11-10 22:20:53,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2024-11-10 22:20:53,364 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 49 predicate places. [2024-11-10 22:20:53,364 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 446 flow [2024-11-10 22:20:53,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-10 22:20:53,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:53,364 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:53,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:20:53,364 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:53,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1540938784, now seen corresponding path program 1 times [2024-11-10 22:20:53,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:53,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990801364] [2024-11-10 22:20:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:20:53,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:53,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990801364] [2024-11-10 22:20:53,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990801364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:53,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:53,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:20:53,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878065517] [2024-11-10 22:20:53,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:53,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:20:53,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:53,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:20:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:20:53,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-10 22:20:53,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 446 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-10 22:20:53,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:53,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-10 22:20:53,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:53,605 INFO L124 PetriNetUnfolderBase]: 403/950 cut-off events. [2024-11-10 22:20:53,605 INFO L125 PetriNetUnfolderBase]: For 683/699 co-relation queries the response was YES. [2024-11-10 22:20:53,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2283 conditions, 950 events. 403/950 cut-off events. For 683/699 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5365 event pairs, 142 based on Foata normal form. 3/921 useless extension candidates. Maximal degree in co-relation 2196. Up to 385 conditions per place. [2024-11-10 22:20:53,610 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 65 selfloop transitions, 10 changer transitions 9/101 dead transitions. [2024-11-10 22:20:53,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 101 transitions, 675 flow [2024-11-10 22:20:53,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:20:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:20:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 180 transitions. [2024-11-10 22:20:53,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5769230769230769 [2024-11-10 22:20:53,611 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 446 flow. Second operand 6 states and 180 transitions. [2024-11-10 22:20:53,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 101 transitions, 675 flow [2024-11-10 22:20:53,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 101 transitions, 652 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:20:53,615 INFO L231 Difference]: Finished difference. Result has 97 places, 80 transitions, 432 flow [2024-11-10 22:20:53,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=432, PETRI_PLACES=97, PETRI_TRANSITIONS=80} [2024-11-10 22:20:53,615 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 52 predicate places. [2024-11-10 22:20:53,616 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 80 transitions, 432 flow [2024-11-10 22:20:53,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-10 22:20:53,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:53,616 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:53,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:20:53,616 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:53,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash -294109334, now seen corresponding path program 1 times [2024-11-10 22:20:53,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:53,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458537531] [2024-11-10 22:20:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:53,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:20:53,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:53,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458537531] [2024-11-10 22:20:53,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458537531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:53,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926181707] [2024-11-10 22:20:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:53,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:53,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:53,698 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) [2024-11-10 22:20:53,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:20:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:53,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:20:53,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:20:53,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:20:54,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926181707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:54,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:54,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2024-11-10 22:20:54,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897467716] [2024-11-10 22:20:54,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:54,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 22:20:54,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:54,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 22:20:54,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-10 22:20:54,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52 [2024-11-10 22:20:54,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 80 transitions, 432 flow. Second operand has 19 states, 19 states have (on average 18.210526315789473) internal successors, (346), 19 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) [2024-11-10 22:20:54,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:54,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52 [2024-11-10 22:20:54,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:54,690 INFO L124 PetriNetUnfolderBase]: 689/1497 cut-off events. [2024-11-10 22:20:54,690 INFO L125 PetriNetUnfolderBase]: For 1201/1233 co-relation queries the response was YES. [2024-11-10 22:20:54,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3619 conditions, 1497 events. 689/1497 cut-off events. For 1201/1233 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 9353 event pairs, 196 based on Foata normal form. 44/1481 useless extension candidates. Maximal degree in co-relation 3531. Up to 283 conditions per place. [2024-11-10 22:20:54,698 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 94 selfloop transitions, 39 changer transitions 5/152 dead transitions. [2024-11-10 22:20:54,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 152 transitions, 976 flow [2024-11-10 22:20:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:20:54,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:20:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 321 transitions. [2024-11-10 22:20:54,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4409340659340659 [2024-11-10 22:20:54,700 INFO L175 Difference]: Start difference. First operand has 97 places, 80 transitions, 432 flow. Second operand 14 states and 321 transitions. [2024-11-10 22:20:54,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 152 transitions, 976 flow [2024-11-10 22:20:54,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 152 transitions, 924 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-10 22:20:54,705 INFO L231 Difference]: Finished difference. Result has 101 places, 81 transitions, 495 flow [2024-11-10 22:20:54,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=495, PETRI_PLACES=101, PETRI_TRANSITIONS=81} [2024-11-10 22:20:54,706 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 56 predicate places. [2024-11-10 22:20:54,706 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 81 transitions, 495 flow [2024-11-10 22:20:54,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.210526315789473) internal successors, (346), 19 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) [2024-11-10 22:20:54,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:54,706 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:54,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:20:54,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:54,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:54,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:54,907 INFO L85 PathProgramCache]: Analyzing trace with hash -636140770, now seen corresponding path program 1 times [2024-11-10 22:20:54,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:54,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370219990] [2024-11-10 22:20:54,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:54,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:20:54,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:54,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370219990] [2024-11-10 22:20:54,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370219990] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:54,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407962315] [2024-11-10 22:20:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:54,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:54,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:54,965 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) [2024-11-10 22:20:54,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:20:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:55,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:20:55,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:20:55,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:20:55,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407962315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:55,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:55,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2024-11-10 22:20:55,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188760956] [2024-11-10 22:20:55,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:55,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 22:20:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:55,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 22:20:55,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-10 22:20:55,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52 [2024-11-10 22:20:55,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 81 transitions, 495 flow. Second operand has 19 states, 19 states have (on average 18.526315789473685) internal successors, (352), 19 states have internal predecessors, (352), 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) [2024-11-10 22:20:55,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:55,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52 [2024-11-10 22:20:55,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:55,886 INFO L124 PetriNetUnfolderBase]: 605/1321 cut-off events. [2024-11-10 22:20:55,886 INFO L125 PetriNetUnfolderBase]: For 1307/1317 co-relation queries the response was YES. [2024-11-10 22:20:55,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3264 conditions, 1321 events. 605/1321 cut-off events. For 1307/1317 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7822 event pairs, 187 based on Foata normal form. 38/1291 useless extension candidates. Maximal degree in co-relation 3172. Up to 307 conditions per place. [2024-11-10 22:20:55,893 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 58 selfloop transitions, 35 changer transitions 32/138 dead transitions. [2024-11-10 22:20:55,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 138 transitions, 976 flow [2024-11-10 22:20:55,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:20:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:20:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 314 transitions. [2024-11-10 22:20:55,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43131868131868134 [2024-11-10 22:20:55,895 INFO L175 Difference]: Start difference. First operand has 101 places, 81 transitions, 495 flow. Second operand 14 states and 314 transitions. [2024-11-10 22:20:55,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 138 transitions, 976 flow [2024-11-10 22:20:55,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 923 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-11-10 22:20:55,900 INFO L231 Difference]: Finished difference. Result has 107 places, 76 transitions, 512 flow [2024-11-10 22:20:55,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=512, PETRI_PLACES=107, PETRI_TRANSITIONS=76} [2024-11-10 22:20:55,900 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 62 predicate places. [2024-11-10 22:20:55,901 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 76 transitions, 512 flow [2024-11-10 22:20:55,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.526315789473685) internal successors, (352), 19 states have internal predecessors, (352), 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) [2024-11-10 22:20:55,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:55,901 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1] [2024-11-10 22:20:55,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 22:20:56,101 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,SelfDestructingSolverStorable11 [2024-11-10 22:20:56,102 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:56,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:56,102 INFO L85 PathProgramCache]: Analyzing trace with hash 997575933, now seen corresponding path program 1 times [2024-11-10 22:20:56,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:56,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008671027] [2024-11-10 22:20:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:56,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:56,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:56,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008671027] [2024-11-10 22:20:56,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008671027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:56,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826855975] [2024-11-10 22:20:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:56,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:56,256 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) [2024-11-10 22:20:56,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:20:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:56,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 22:20:56,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:56,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:56,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826855975] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:56,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:56,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-10 22:20:56,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081400331] [2024-11-10 22:20:56,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:56,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-10 22:20:56,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:56,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-10 22:20:56,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-10 22:20:56,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-11-10 22:20:56,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 76 transitions, 512 flow. Second operand has 28 states, 28 states have (on average 21.071428571428573) internal successors, (590), 28 states have internal predecessors, (590), 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) [2024-11-10 22:20:56,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:56,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-11-10 22:20:56,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:56,914 INFO L124 PetriNetUnfolderBase]: 420/1018 cut-off events. [2024-11-10 22:20:56,914 INFO L125 PetriNetUnfolderBase]: For 2270/2270 co-relation queries the response was YES. [2024-11-10 22:20:56,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 1018 events. 420/1018 cut-off events. For 2270/2270 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5443 event pairs, 256 based on Foata normal form. 14/1001 useless extension candidates. Maximal degree in co-relation 2515. Up to 644 conditions per place. [2024-11-10 22:20:56,920 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 26 selfloop transitions, 72 changer transitions 0/118 dead transitions. [2024-11-10 22:20:56,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 118 transitions, 1142 flow [2024-11-10 22:20:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-10 22:20:56,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-10 22:20:56,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 620 transitions. [2024-11-10 22:20:56,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45857988165680474 [2024-11-10 22:20:56,925 INFO L175 Difference]: Start difference. First operand has 107 places, 76 transitions, 512 flow. Second operand 26 states and 620 transitions. [2024-11-10 22:20:56,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 118 transitions, 1142 flow [2024-11-10 22:20:56,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 118 transitions, 1061 flow, removed 3 selfloop flow, removed 10 redundant places. [2024-11-10 22:20:56,932 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 1061 flow [2024-11-10 22:20:56,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1061, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2024-11-10 22:20:56,932 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2024-11-10 22:20:56,932 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 1061 flow [2024-11-10 22:20:56,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 21.071428571428573) internal successors, (590), 28 states have internal predecessors, (590), 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) [2024-11-10 22:20:56,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:56,933 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:56,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 22:20:57,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:57,133 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:57,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:57,134 INFO L85 PathProgramCache]: Analyzing trace with hash 396689282, now seen corresponding path program 1 times [2024-11-10 22:20:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:57,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406802904] [2024-11-10 22:20:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 22:20:57,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:57,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406802904] [2024-11-10 22:20:57,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406802904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:57,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831486355] [2024-11-10 22:20:57,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:57,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:57,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:57,217 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) [2024-11-10 22:20:57,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:20:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:57,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:20:57,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:20:57,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:20:57,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831486355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:57,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:57,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17 [2024-11-10 22:20:57,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994320328] [2024-11-10 22:20:57,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:57,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:20:57,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:20:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:20:57,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52 [2024-11-10 22:20:57,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 1061 flow. Second operand has 18 states, 18 states have (on average 18.555555555555557) internal successors, (334), 18 states have internal predecessors, (334), 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) [2024-11-10 22:20:57,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:57,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52 [2024-11-10 22:20:57,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:58,190 INFO L124 PetriNetUnfolderBase]: 890/1983 cut-off events. [2024-11-10 22:20:58,190 INFO L125 PetriNetUnfolderBase]: For 3429/3454 co-relation queries the response was YES. [2024-11-10 22:20:58,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5162 conditions, 1983 events. 890/1983 cut-off events. For 3429/3454 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 12235 event pairs, 188 based on Foata normal form. 44/1992 useless extension candidates. Maximal degree in co-relation 4926. Up to 357 conditions per place. [2024-11-10 22:20:58,206 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 194 selfloop transitions, 64 changer transitions 27/298 dead transitions. [2024-11-10 22:20:58,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 298 transitions, 2936 flow [2024-11-10 22:20:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 22:20:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-10 22:20:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 422 transitions. [2024-11-10 22:20:58,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45085470085470086 [2024-11-10 22:20:58,208 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 1061 flow. Second operand 18 states and 422 transitions. [2024-11-10 22:20:58,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 298 transitions, 2936 flow [2024-11-10 22:20:58,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 298 transitions, 2472 flow, removed 162 selfloop flow, removed 13 redundant places. [2024-11-10 22:20:58,219 INFO L231 Difference]: Finished difference. Result has 131 places, 151 transitions, 1457 flow [2024-11-10 22:20:58,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1457, PETRI_PLACES=131, PETRI_TRANSITIONS=151} [2024-11-10 22:20:58,220 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 86 predicate places. [2024-11-10 22:20:58,220 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 151 transitions, 1457 flow [2024-11-10 22:20:58,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 18.555555555555557) internal successors, (334), 18 states have internal predecessors, (334), 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) [2024-11-10 22:20:58,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:58,220 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:58,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 22:20:58,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:58,424 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:58,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:58,425 INFO L85 PathProgramCache]: Analyzing trace with hash 798321114, now seen corresponding path program 1 times [2024-11-10 22:20:58,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:58,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270731144] [2024-11-10 22:20:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:58,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 22:20:58,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:58,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270731144] [2024-11-10 22:20:58,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270731144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:58,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026023037] [2024-11-10 22:20:58,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:58,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:58,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:58,493 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) [2024-11-10 22:20:58,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 22:20:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:58,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:20:58,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:20:58,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:20:58,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026023037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:58,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:58,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17 [2024-11-10 22:20:58,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356710849] [2024-11-10 22:20:58,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:58,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:20:58,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:58,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:20:58,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:20:58,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52 [2024-11-10 22:20:58,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 151 transitions, 1457 flow. Second operand has 18 states, 18 states have (on average 18.88888888888889) internal successors, (340), 18 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) [2024-11-10 22:20:58,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:58,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52 [2024-11-10 22:20:58,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:59,449 INFO L124 PetriNetUnfolderBase]: 1075/2347 cut-off events. [2024-11-10 22:20:59,449 INFO L125 PetriNetUnfolderBase]: For 4450/4504 co-relation queries the response was YES. [2024-11-10 22:20:59,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6325 conditions, 2347 events. 1075/2347 cut-off events. For 4450/4504 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14532 event pairs, 230 based on Foata normal form. 49/2355 useless extension candidates. Maximal degree in co-relation 6091. Up to 502 conditions per place. [2024-11-10 22:20:59,460 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 151 selfloop transitions, 62 changer transitions 67/293 dead transitions. [2024-11-10 22:20:59,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 293 transitions, 2889 flow [2024-11-10 22:20:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 22:20:59,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-10 22:20:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 413 transitions. [2024-11-10 22:20:59,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4412393162393162 [2024-11-10 22:20:59,462 INFO L175 Difference]: Start difference. First operand has 131 places, 151 transitions, 1457 flow. Second operand 18 states and 413 transitions. [2024-11-10 22:20:59,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 293 transitions, 2889 flow [2024-11-10 22:20:59,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 293 transitions, 2846 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-10 22:20:59,476 INFO L231 Difference]: Finished difference. Result has 146 places, 151 transitions, 1571 flow [2024-11-10 22:20:59,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1571, PETRI_PLACES=146, PETRI_TRANSITIONS=151} [2024-11-10 22:20:59,476 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 101 predicate places. [2024-11-10 22:20:59,476 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 151 transitions, 1571 flow [2024-11-10 22:20:59,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 18.88888888888889) internal successors, (340), 18 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) [2024-11-10 22:20:59,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:59,477 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:59,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 22:20:59,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 22:20:59,680 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:20:59,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:59,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1105186662, now seen corresponding path program 2 times [2024-11-10 22:20:59,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:59,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227395003] [2024-11-10 22:20:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:59,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:20:59,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:59,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227395003] [2024-11-10 22:20:59,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227395003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:59,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755378986] [2024-11-10 22:20:59,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:20:59,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:59,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:59,861 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) [2024-11-10 22:20:59,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 22:20:59,919 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:20:59,919 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:20:59,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:20:59,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-10 22:20:59,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:21:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-10 22:21:00,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755378986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:21:00,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:21:00,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2024-11-10 22:21:00,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272404050] [2024-11-10 22:21:00,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:21:00,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 22:21:00,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:00,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 22:21:00,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-10 22:21:00,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52 [2024-11-10 22:21:00,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 151 transitions, 1571 flow. Second operand has 15 states, 15 states have (on average 18.466666666666665) internal successors, (277), 15 states have internal predecessors, (277), 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) [2024-11-10 22:21:00,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:00,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52 [2024-11-10 22:21:00,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:00,844 INFO L124 PetriNetUnfolderBase]: 1704/3708 cut-off events. [2024-11-10 22:21:00,844 INFO L125 PetriNetUnfolderBase]: For 7990/8038 co-relation queries the response was YES. [2024-11-10 22:21:00,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10361 conditions, 3708 events. 1704/3708 cut-off events. For 7990/8038 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 25902 event pairs, 576 based on Foata normal form. 64/3723 useless extension candidates. Maximal degree in co-relation 10056. Up to 942 conditions per place. [2024-11-10 22:21:00,867 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 186 selfloop transitions, 109 changer transitions 60/368 dead transitions. [2024-11-10 22:21:00,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 368 transitions, 3836 flow [2024-11-10 22:21:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-10 22:21:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-10 22:21:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 582 transitions. [2024-11-10 22:21:00,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41452991452991456 [2024-11-10 22:21:00,869 INFO L175 Difference]: Start difference. First operand has 146 places, 151 transitions, 1571 flow. Second operand 27 states and 582 transitions. [2024-11-10 22:21:00,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 368 transitions, 3836 flow [2024-11-10 22:21:00,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 368 transitions, 3671 flow, removed 23 selfloop flow, removed 13 redundant places. [2024-11-10 22:21:00,890 INFO L231 Difference]: Finished difference. Result has 161 places, 215 transitions, 2697 flow [2024-11-10 22:21:00,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1487, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=2697, PETRI_PLACES=161, PETRI_TRANSITIONS=215} [2024-11-10 22:21:00,893 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 116 predicate places. [2024-11-10 22:21:00,893 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 215 transitions, 2697 flow [2024-11-10 22:21:00,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.466666666666665) internal successors, (277), 15 states have internal predecessors, (277), 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) [2024-11-10 22:21:00,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:00,893 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:00,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 22:21:01,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 22:21:01,094 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:21:01,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:01,094 INFO L85 PathProgramCache]: Analyzing trace with hash 136657882, now seen corresponding path program 2 times [2024-11-10 22:21:01,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:01,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307729471] [2024-11-10 22:21:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:01,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:21:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307729471] [2024-11-10 22:21:01,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307729471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:21:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618722475] [2024-11-10 22:21:01,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:21:01,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:21:01,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:21:01,308 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) [2024-11-10 22:21:01,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 22:21:01,379 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:21:01,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:21:01,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:21:01,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:21:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-10 22:21:01,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:21:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-10 22:21:01,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618722475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:21:01,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:21:01,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2024-11-10 22:21:01,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206786944] [2024-11-10 22:21:01,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:21:01,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 22:21:01,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:01,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 22:21:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-10 22:21:01,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 52 [2024-11-10 22:21:01,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 215 transitions, 2697 flow. Second operand has 15 states, 15 states have (on average 18.733333333333334) internal successors, (281), 15 states have internal predecessors, (281), 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) [2024-11-10 22:21:01,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:01,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 52 [2024-11-10 22:21:01,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:02,227 INFO L124 PetriNetUnfolderBase]: 1102/2722 cut-off events. [2024-11-10 22:21:02,227 INFO L125 PetriNetUnfolderBase]: For 8415/8415 co-relation queries the response was YES. [2024-11-10 22:21:02,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8016 conditions, 2722 events. 1102/2722 cut-off events. For 8415/8415 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 18979 event pairs, 455 based on Foata normal form. 66/2768 useless extension candidates. Maximal degree in co-relation 7689. Up to 792 conditions per place. [2024-11-10 22:21:02,238 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 65 selfloop transitions, 87 changer transitions 150/306 dead transitions. [2024-11-10 22:21:02,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 306 transitions, 3836 flow [2024-11-10 22:21:02,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-10 22:21:02,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-10 22:21:02,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 516 transitions. [2024-11-10 22:21:02,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39692307692307693 [2024-11-10 22:21:02,241 INFO L175 Difference]: Start difference. First operand has 161 places, 215 transitions, 2697 flow. Second operand 25 states and 516 transitions. [2024-11-10 22:21:02,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 306 transitions, 3836 flow [2024-11-10 22:21:02,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 306 transitions, 3519 flow, removed 67 selfloop flow, removed 14 redundant places. [2024-11-10 22:21:02,261 INFO L231 Difference]: Finished difference. Result has 167 places, 153 transitions, 2177 flow [2024-11-10 22:21:02,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2406, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2177, PETRI_PLACES=167, PETRI_TRANSITIONS=153} [2024-11-10 22:21:02,262 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 122 predicate places. [2024-11-10 22:21:02,262 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 153 transitions, 2177 flow [2024-11-10 22:21:02,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.733333333333334) internal successors, (281), 15 states have internal predecessors, (281), 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) [2024-11-10 22:21:02,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:02,262 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 12, 1, 1, 1, 1, 1] [2024-11-10 22:21:02,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 22:21:02,466 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,SelfDestructingSolverStorable16 [2024-11-10 22:21:02,466 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 22:21:02,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:02,467 INFO L85 PathProgramCache]: Analyzing trace with hash -758949265, now seen corresponding path program 2 times [2024-11-10 22:21:02,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:02,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515475257] [2024-11-10 22:21:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:02,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:21:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:21:02,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:02,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515475257] [2024-11-10 22:21:02,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515475257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:21:02,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951271121] [2024-11-10 22:21:02,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:21:02,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:21:02,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:21:02,846 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) [2024-11-10 22:21:02,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 22:21:02,901 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:21:02,901 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:21:02,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:21:02,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:21:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-10 22:21:02,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:21:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-10 22:21:03,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951271121] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:21:03,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:21:03,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 3, 3] total 30 [2024-11-10 22:21:03,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912619181] [2024-11-10 22:21:03,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:21:03,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-10 22:21:03,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:03,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-10 22:21:03,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-10 22:21:03,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 52 [2024-11-10 22:21:03,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 153 transitions, 2177 flow. Second operand has 31 states, 31 states have (on average 19.161290322580644) internal successors, (594), 31 states have internal predecessors, (594), 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) [2024-11-10 22:21:03,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:03,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 52 [2024-11-10 22:21:03,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:03,535 INFO L124 PetriNetUnfolderBase]: 15/309 cut-off events. [2024-11-10 22:21:03,535 INFO L125 PetriNetUnfolderBase]: For 4543/4543 co-relation queries the response was YES. [2024-11-10 22:21:03,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1526 conditions, 309 events. 15/309 cut-off events. For 4543/4543 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1019 event pairs, 0 based on Foata normal form. 8/317 useless extension candidates. Maximal degree in co-relation 1496. Up to 70 conditions per place. [2024-11-10 22:21:03,536 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 0 selfloop transitions, 0 changer transitions 173/173 dead transitions. [2024-11-10 22:21:03,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 173 transitions, 2741 flow [2024-11-10 22:21:03,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 22:21:03,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 22:21:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 627 transitions. [2024-11-10 22:21:03,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40192307692307694 [2024-11-10 22:21:03,538 INFO L175 Difference]: Start difference. First operand has 167 places, 153 transitions, 2177 flow. Second operand 30 states and 627 transitions. [2024-11-10 22:21:03,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 173 transitions, 2741 flow [2024-11-10 22:21:03,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 173 transitions, 2125 flow, removed 16 selfloop flow, removed 33 redundant places. [2024-11-10 22:21:03,545 INFO L231 Difference]: Finished difference. Result has 115 places, 0 transitions, 0 flow [2024-11-10 22:21:03,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=0, PETRI_PLACES=115, PETRI_TRANSITIONS=0} [2024-11-10 22:21:03,545 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 70 predicate places. [2024-11-10 22:21:03,546 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 0 transitions, 0 flow [2024-11-10 22:21:03,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 19.161290322580644) internal successors, (594), 31 states have internal predecessors, (594), 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) [2024-11-10 22:21:03,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-11-10 22:21:03,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-10 22:21:03,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-10 22:21:03,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-10 22:21:03,750 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,SelfDestructingSolverStorable17 [2024-11-10 22:21:03,750 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:03,754 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:21:03,755 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:21:03,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:21:03 BasicIcfg [2024-11-10 22:21:03,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:21:03,759 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:21:03,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:21:03,759 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:21:03,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:49" (3/4) ... [2024-11-10 22:21:03,760 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:21:03,762 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 22:21:03,762 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 22:21:03,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-10 22:21:03,767 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-10 22:21:03,767 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-10 22:21:03,767 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 22:21:03,846 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:21:03,846 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:21:03,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:21:03,846 INFO L158 Benchmark]: Toolchain (without parser) took 15179.51ms. Allocated memory was 165.7MB in the beginning and 377.5MB in the end (delta: 211.8MB). Free memory was 133.2MB in the beginning and 242.0MB in the end (delta: -108.8MB). Peak memory consumption was 106.2MB. Max. memory is 16.1GB. [2024-11-10 22:21:03,846 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 165.7MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:21:03,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.07ms. Allocated memory is still 165.7MB. Free memory was 133.2MB in the beginning and 120.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 22:21:03,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.64ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:21:03,847 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 116.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:21:03,847 INFO L158 Benchmark]: IcfgBuilder took 577.88ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 76.7MB in the end (delta: 39.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-10 22:21:03,847 INFO L158 Benchmark]: TraceAbstraction took 14236.57ms. Allocated memory was 165.7MB in the beginning and 377.5MB in the end (delta: 211.8MB). Free memory was 75.9MB in the beginning and 247.9MB in the end (delta: -172.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-10 22:21:03,847 INFO L158 Benchmark]: Witness Printer took 87.45ms. Allocated memory is still 377.5MB. Free memory was 247.9MB in the beginning and 242.0MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 22:21:03,848 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 165.7MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.07ms. Allocated memory is still 165.7MB. Free memory was 133.2MB in the beginning and 120.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.64ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 116.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 577.88ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 76.7MB in the end (delta: 39.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14236.57ms. Allocated memory was 165.7MB in the beginning and 377.5MB in the end (delta: 211.8MB). Free memory was 75.9MB in the beginning and 247.9MB in the end (delta: -172.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Witness Printer took 87.45ms. Allocated memory is still 377.5MB. Free memory was 247.9MB in the beginning and 242.0MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: 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: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 65 locations, 14 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: 14.1s, OverallIterations: 18, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2643 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2445 mSDsluCounter, 3012 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2869 mSDsCounter, 299 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6936 IncrementalHoareTripleChecker+Invalid, 7235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 299 mSolverCounterUnsat, 143 mSDtfsCounter, 6936 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 908 GetRequests, 549 SyntacticMatches, 9 SemanticMatches, 350 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2338 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2697occurred in iteration=16, InterpolantAutomatonStates: 246, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 760 NumberOfCodeBlocks, 644 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1035 ConstructedInterpolants, 0 QuantifiedInterpolants, 4205 SizeOfPredicates, 56 NumberOfNonLiveVariables, 1440 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 39 InterpolantComputations, 8 PerfectInterpolantSequences, 899/1598 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:21:03,877 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