./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test-context1.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 d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:09:41,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:09:41,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:09:41,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:09:41,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:09:41,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:09:41,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:09:41,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:09:41,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:09:41,719 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:09:41,720 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:09:41,720 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:09:41,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:09:41,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:09:41,721 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:09:41,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:09:41,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:09:41,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:09:41,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:09:41,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:09:41,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:09:41,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:09:41,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:09:41,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:09:41,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:09:41,731 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:09:41,731 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:09:41,731 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:09:41,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:09:41,732 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:09:41,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:09:41,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:09:41,732 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:09:41,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:09:41,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:09:41,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:09:41,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:09:41,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:09:41,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:09:41,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:09:41,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:09:41,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:09:41,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:09:41,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:09:41,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2024-11-19 14:09:41,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:09:42,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:09:42,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:09:42,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:09:42,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:09:42,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-19 14:09:43,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:09:43,542 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:09:43,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-19 14:09:43,552 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2deac7213/c687d35740d444bb88e212c4c4ce98a6/FLAG6a8d8cb92 [2024-11-19 14:09:43,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2deac7213/c687d35740d444bb88e212c4c4ce98a6 [2024-11-19 14:09:43,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:09:43,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:09:43,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:09:43,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:09:43,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:09:43,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fce3844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43, skipping insertion in model container [2024-11-19 14:09:43,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:09:43,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:09:43,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:09:43,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:09:43,796 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:09:43,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43 WrapperNode [2024-11-19 14:09:43,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:09:43,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:09:43,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:09:43,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:09:43,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,861 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 147 [2024-11-19 14:09:43,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:09:43,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:09:43,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:09:43,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:09:43,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,909 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-19 14:09:43,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:09:43,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:09:43,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:09:43,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:09:43,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (1/1) ... [2024-11-19 14:09:43,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:09:43,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:44,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:09:44,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:09:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:09:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:09:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:09:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:09:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:09:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:09:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:09:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:09:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:09:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 14:09:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 14:09:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:09:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:09:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:09:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:09:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:09:44,379 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:09:44,554 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:09:44,555 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:09:44,893 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:09:44,900 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:09:45,262 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:09:45,266 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 14:09:45,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:09:45 BoogieIcfgContainer [2024-11-19 14:09:45,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:09:45,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:09:45,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:09:45,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:09:45,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:09:43" (1/3) ... [2024-11-19 14:09:45,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f89c710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:09:45, skipping insertion in model container [2024-11-19 14:09:45,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:09:43" (2/3) ... [2024-11-19 14:09:45,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f89c710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:09:45, skipping insertion in model container [2024-11-19 14:09:45,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:09:45" (3/3) ... [2024-11-19 14:09:45,281 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2024-11-19 14:09:45,310 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:09:45,310 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-19 14:09:45,314 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:09:45,397 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 14:09:45,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2024-11-19 14:09:45,455 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2024-11-19 14:09:45,456 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 14:09:45,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 5/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 100 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-19 14:09:45,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2024-11-19 14:09:45,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2024-11-19 14:09:45,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:09:45,480 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;@52ac2745, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:09:45,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-19 14:09:45,486 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:09:45,486 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 14:09:45,486 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:09:45,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:45,487 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:09:45,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:45,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:45,493 INFO L85 PathProgramCache]: Analyzing trace with hash 505329, now seen corresponding path program 1 times [2024-11-19 14:09:45,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:45,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412514972] [2024-11-19 14:09:45,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:45,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:45,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:45,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412514972] [2024-11-19 14:09:45,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412514972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:09:45,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:09:45,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:09:45,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543124764] [2024-11-19 14:09:45,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:09:45,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:09:45,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:09:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:09:45,979 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-19 14:09:45,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:45,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:45,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-19 14:09:45,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:46,315 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2024-11-19 14:09:46,315 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-19 14:09:46,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 462 events. 265/462 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1939 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 885. Up to 456 conditions per place. [2024-11-19 14:09:46,320 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2024-11-19 14:09:46,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2024-11-19 14:09:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:09:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:09:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-19 14:09:46,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-19 14:09:46,331 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2024-11-19 14:09:46,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2024-11-19 14:09:46,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:09:46,335 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2024-11-19 14:09:46,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2024-11-19 14:09:46,340 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-19 14:09:46,340 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2024-11-19 14:09:46,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:46,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:46,341 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 14:09:46,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:09:46,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:46,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash -2125143173, now seen corresponding path program 1 times [2024-11-19 14:09:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223181655] [2024-11-19 14:09:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:46,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:46,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:46,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223181655] [2024-11-19 14:09:46,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223181655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:46,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230998922] [2024-11-19 14:09:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:46,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:46,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:46,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:46,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:09:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:46,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:09:46,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:46,611 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:09:46,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230998922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:09:46,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:09:46,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 14:09:46,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446588986] [2024-11-19 14:09:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:09:46,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:09:46,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:46,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:09:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:09:46,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-19 14:09:46,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:46,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:46,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-19 14:09:46,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:46,750 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2024-11-19 14:09:46,750 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 14:09:46,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 461 events. 265/461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1938 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 927. Up to 451 conditions per place. [2024-11-19 14:09:46,753 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2024-11-19 14:09:46,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2024-11-19 14:09:46,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:09:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:09:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-11-19 14:09:46,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-11-19 14:09:46,754 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2024-11-19 14:09:46,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2024-11-19 14:09:46,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:09:46,756 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2024-11-19 14:09:46,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2024-11-19 14:09:46,756 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-19 14:09:46,757 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2024-11-19 14:09:46,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:46,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:46,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:46,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 14:09:46,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:46,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:46,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:46,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648030, now seen corresponding path program 1 times [2024-11-19 14:09:46,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:46,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184039297] [2024-11-19 14:09:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:46,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:47,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:47,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184039297] [2024-11-19 14:09:47,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184039297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:09:47,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:09:47,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:09:47,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453793435] [2024-11-19 14:09:47,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:09:47,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:09:47,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:47,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:09:47,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:09:47,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:47,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:47,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:47,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:47,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:47,252 INFO L124 PetriNetUnfolderBase]: 339/597 cut-off events. [2024-11-19 14:09:47,253 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-19 14:09:47,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 597 events. 339/597 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2534 event pairs, 134 based on Foata normal form. 13/424 useless extension candidates. Maximal degree in co-relation 1210. Up to 425 conditions per place. [2024-11-19 14:09:47,260 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 37 selfloop transitions, 2 changer transitions 3/46 dead transitions. [2024-11-19 14:09:47,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 215 flow [2024-11-19 14:09:47,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:09:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:09:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-11-19 14:09:47,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-19 14:09:47,267 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2024-11-19 14:09:47,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 215 flow [2024-11-19 14:09:47,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 193 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-19 14:09:47,268 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 100 flow [2024-11-19 14:09:47,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-19 14:09:47,269 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2024-11-19 14:09:47,270 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 100 flow [2024-11-19 14:09:47,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:47,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:47,274 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 14:09:47,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:09:47,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:47,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:47,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1454928451, now seen corresponding path program 1 times [2024-11-19 14:09:47,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:47,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685810934] [2024-11-19 14:09:47,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:47,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:47,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:47,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:47,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685810934] [2024-11-19 14:09:47,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685810934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:47,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119223801] [2024-11-19 14:09:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:47,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:47,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:47,423 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:47,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:09:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:47,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:09:47,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:47,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:47,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:47,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119223801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:47,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:47,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-19 14:09:47,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000831687] [2024-11-19 14:09:47,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:47,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:09:47,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:47,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:09:47,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:09:47,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-19 14:09:47,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 100 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:47,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:47,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-19 14:09:47,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:47,898 INFO L124 PetriNetUnfolderBase]: 342/609 cut-off events. [2024-11-19 14:09:47,898 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-19 14:09:47,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 609 events. 342/609 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2681 event pairs, 300 based on Foata normal form. 3/453 useless extension candidates. Maximal degree in co-relation 1360. Up to 594 conditions per place. [2024-11-19 14:09:47,902 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2024-11-19 14:09:47,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 208 flow [2024-11-19 14:09:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:09:47,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:09:47,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2024-11-19 14:09:47,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2024-11-19 14:09:47,906 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 100 flow. Second operand 10 states and 91 transitions. [2024-11-19 14:09:47,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 208 flow [2024-11-19 14:09:47,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:09:47,908 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 172 flow [2024-11-19 14:09:47,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2024-11-19 14:09:47,909 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-19 14:09:47,910 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 172 flow [2024-11-19 14:09:47,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:47,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:47,910 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:47,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 14:09:48,114 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,SelfDestructingSolverStorable3 [2024-11-19 14:09:48,115 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:48,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648029, now seen corresponding path program 1 times [2024-11-19 14:09:48,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:48,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059979083] [2024-11-19 14:09:48,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:48,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:48,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:48,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:48,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059979083] [2024-11-19 14:09:48,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059979083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:09:48,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:09:48,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:09:48,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042015041] [2024-11-19 14:09:48,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:09:48,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:09:48,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:48,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:09:48,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:09:48,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:48,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:48,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:48,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:48,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:48,332 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2024-11-19 14:09:48,338 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-19 14:09:48,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 582 events. 327/582 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2488 event pairs, 119 based on Foata normal form. 12/440 useless extension candidates. Maximal degree in co-relation 1332. Up to 425 conditions per place. [2024-11-19 14:09:48,342 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 45 selfloop transitions, 2 changer transitions 3/54 dead transitions. [2024-11-19 14:09:48,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 299 flow [2024-11-19 14:09:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:09:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:09:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-19 14:09:48,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-11-19 14:09:48,346 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 172 flow. Second operand 3 states and 60 transitions. [2024-11-19 14:09:48,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 299 flow [2024-11-19 14:09:48,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 288 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:09:48,348 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 169 flow [2024-11-19 14:09:48,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-11-19 14:09:48,349 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-11-19 14:09:48,349 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 169 flow [2024-11-19 14:09:48,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:48,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:48,349 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:48,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:09:48,349 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:48,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:48,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375046, now seen corresponding path program 1 times [2024-11-19 14:09:48,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:48,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999671416] [2024-11-19 14:09:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:48,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:48,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:48,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:48,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999671416] [2024-11-19 14:09:48,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999671416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:48,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554185705] [2024-11-19 14:09:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:48,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:48,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:48,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:48,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:09:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:48,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:09:48,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:48,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:09:48,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554185705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:09:48,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:09:48,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-11-19 14:09:48,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219543292] [2024-11-19 14:09:48,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:09:48,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:09:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:09:48,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:09:48,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:48,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:48,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:48,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:48,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:48,865 INFO L124 PetriNetUnfolderBase]: 415/709 cut-off events. [2024-11-19 14:09:48,867 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-19 14:09:48,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 709 events. 415/709 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2879 event pairs, 173 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 1648. Up to 371 conditions per place. [2024-11-19 14:09:48,874 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 47 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2024-11-19 14:09:48,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 320 flow [2024-11-19 14:09:48,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:09:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:09:48,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-19 14:09:48,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-11-19 14:09:48,877 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 169 flow. Second operand 4 states and 73 transitions. [2024-11-19 14:09:48,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 320 flow [2024-11-19 14:09:48,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:09:48,883 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 214 flow [2024-11-19 14:09:48,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2024-11-19 14:09:48,885 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2024-11-19 14:09:48,885 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 214 flow [2024-11-19 14:09:48,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:48,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:48,886 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:48,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 14:09:49,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:49,091 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:49,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:49,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375039, now seen corresponding path program 1 times [2024-11-19 14:09:49,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:49,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836103100] [2024-11-19 14:09:49,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:49,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:49,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:49,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836103100] [2024-11-19 14:09:49,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836103100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:49,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735023421] [2024-11-19 14:09:49,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:49,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:49,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:49,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:49,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:09:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:49,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:09:49,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:49,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:49,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:49,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735023421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:49,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:49,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-19 14:09:49,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069717623] [2024-11-19 14:09:49,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:49,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 14:09:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 14:09:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:09:49,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:49,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:49,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:49,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:49,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:49,708 INFO L124 PetriNetUnfolderBase]: 1040/1773 cut-off events. [2024-11-19 14:09:49,708 INFO L125 PetriNetUnfolderBase]: For 931/931 co-relation queries the response was YES. [2024-11-19 14:09:49,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4557 conditions, 1773 events. 1040/1773 cut-off events. For 931/931 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8199 event pairs, 276 based on Foata normal form. 26/1525 useless extension candidates. Maximal degree in co-relation 4519. Up to 556 conditions per place. [2024-11-19 14:09:49,721 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 94 selfloop transitions, 9 changer transitions 3/110 dead transitions. [2024-11-19 14:09:49,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 110 transitions, 640 flow [2024-11-19 14:09:49,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:09:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:09:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-11-19 14:09:49,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5436507936507936 [2024-11-19 14:09:49,729 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 214 flow. Second operand 6 states and 137 transitions. [2024-11-19 14:09:49,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 110 transitions, 640 flow [2024-11-19 14:09:49,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 110 transitions, 611 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-11-19 14:09:49,737 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 309 flow [2024-11-19 14:09:49,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2024-11-19 14:09:49,737 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2024-11-19 14:09:49,738 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 309 flow [2024-11-19 14:09:49,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:49,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:49,738 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:49,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 14:09:49,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:49,939 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:49,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:49,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375045, now seen corresponding path program 1 times [2024-11-19 14:09:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896822262] [2024-11-19 14:09:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:49,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:50,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:50,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896822262] [2024-11-19 14:09:50,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896822262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:50,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921030770] [2024-11-19 14:09:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:50,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:50,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:50,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:50,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:09:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:50,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:09:50,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:50,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:50,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:50,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921030770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:50,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:50,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-19 14:09:50,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708891415] [2024-11-19 14:09:50,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:50,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 14:09:50,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:50,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 14:09:50,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:09:50,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:50,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 309 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:50,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:50,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:50,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:50,633 INFO L124 PetriNetUnfolderBase]: 1824/3102 cut-off events. [2024-11-19 14:09:50,633 INFO L125 PetriNetUnfolderBase]: For 4067/4067 co-relation queries the response was YES. [2024-11-19 14:09:50,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8295 conditions, 3102 events. 1824/3102 cut-off events. For 4067/4067 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16215 event pairs, 333 based on Foata normal form. 247/2910 useless extension candidates. Maximal degree in co-relation 8253. Up to 1357 conditions per place. [2024-11-19 14:09:50,665 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 18 changer transitions 18/139 dead transitions. [2024-11-19 14:09:50,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 139 transitions, 923 flow [2024-11-19 14:09:50,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 14:09:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 14:09:50,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-11-19 14:09:50,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-11-19 14:09:50,695 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 309 flow. Second operand 8 states and 170 transitions. [2024-11-19 14:09:50,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 139 transitions, 923 flow [2024-11-19 14:09:50,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 139 transitions, 923 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:09:50,720 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 576 flow [2024-11-19 14:09:50,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=576, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-11-19 14:09:50,723 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 31 predicate places. [2024-11-19 14:09:50,723 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 576 flow [2024-11-19 14:09:50,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:50,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:50,726 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-19 14:09:50,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 14:09:50,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:50,928 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:50,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash 736662151, now seen corresponding path program 2 times [2024-11-19 14:09:50,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:50,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018311568] [2024-11-19 14:09:50,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:09:50,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:50,951 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:09:50,952 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:09:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018311568] [2024-11-19 14:09:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018311568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998502868] [2024-11-19 14:09:51,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:09:51,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:51,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:51,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:51,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:09:51,124 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:09:51,124 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:51,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:09:51,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:51,162 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:09:51,162 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:09:51,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998502868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:51,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:51,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-19 14:09:51,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284026638] [2024-11-19 14:09:51,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:51,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:09:51,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:09:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:09:51,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-19 14:09:51,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 576 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:51,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:51,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-19 14:09:51,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:51,822 INFO L124 PetriNetUnfolderBase]: 1824/3101 cut-off events. [2024-11-19 14:09:51,822 INFO L125 PetriNetUnfolderBase]: For 7910/7910 co-relation queries the response was YES. [2024-11-19 14:09:51,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9508 conditions, 3101 events. 1824/3101 cut-off events. For 7910/7910 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16887 event pairs, 1563 based on Foata normal form. 1/2663 useless extension candidates. Maximal degree in co-relation 9465. Up to 3083 conditions per place. [2024-11-19 14:09:51,845 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 47 selfloop transitions, 16 changer transitions 0/66 dead transitions. [2024-11-19 14:09:51,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 66 transitions, 692 flow [2024-11-19 14:09:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:09:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:09:51,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2024-11-19 14:09:51,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2619047619047619 [2024-11-19 14:09:51,846 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 576 flow. Second operand 4 states and 44 transitions. [2024-11-19 14:09:51,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 66 transitions, 692 flow [2024-11-19 14:09:51,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 672 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-19 14:09:51,923 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 578 flow [2024-11-19 14:09:51,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=578, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2024-11-19 14:09:51,935 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 28 predicate places. [2024-11-19 14:09:51,939 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 578 flow [2024-11-19 14:09:51,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:51,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:51,940 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2024-11-19 14:09:51,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 14:09:52,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:52,143 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:52,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:52,143 INFO L85 PathProgramCache]: Analyzing trace with hash 504756521, now seen corresponding path program 2 times [2024-11-19 14:09:52,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:52,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604592432] [2024-11-19 14:09:52,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:09:52,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:52,176 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:09:52,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 14:09:52,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:52,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604592432] [2024-11-19 14:09:52,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604592432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:09:52,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:09:52,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:09:52,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258810142] [2024-11-19 14:09:52,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:09:52,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:09:52,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:52,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:09:52,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:09:52,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:52,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 578 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:52,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:52,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:52,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:52,642 INFO L124 PetriNetUnfolderBase]: 2219/3825 cut-off events. [2024-11-19 14:09:52,643 INFO L125 PetriNetUnfolderBase]: For 8891/8891 co-relation queries the response was YES. [2024-11-19 14:09:52,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11217 conditions, 3825 events. 2219/3825 cut-off events. For 8891/8891 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 21568 event pairs, 1947 based on Foata normal form. 56/3323 useless extension candidates. Maximal degree in co-relation 9374. Up to 3091 conditions per place. [2024-11-19 14:09:52,659 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 60 selfloop transitions, 2 changer transitions 19/84 dead transitions. [2024-11-19 14:09:52,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 84 transitions, 820 flow [2024-11-19 14:09:52,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:09:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:09:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-11-19 14:09:52,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-11-19 14:09:52,660 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 578 flow. Second operand 4 states and 70 transitions. [2024-11-19 14:09:52,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 84 transitions, 820 flow [2024-11-19 14:09:52,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 84 transitions, 788 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:09:52,733 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 557 flow [2024-11-19 14:09:52,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=557, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2024-11-19 14:09:52,734 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 29 predicate places. [2024-11-19 14:09:52,734 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 557 flow [2024-11-19 14:09:52,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:52,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:52,734 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:52,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:09:52,734 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:52,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:52,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1124412749, now seen corresponding path program 1 times [2024-11-19 14:09:52,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:52,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770266048] [2024-11-19 14:09:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:52,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:52,935 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:09:52,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:52,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770266048] [2024-11-19 14:09:52,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770266048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:52,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365204247] [2024-11-19 14:09:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:52,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:52,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:52,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:52,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:09:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:53,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 14:09:53,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:09:53,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:09:53,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365204247] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:53,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:53,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:09:53,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210457816] [2024-11-19 14:09:53,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:53,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 14:09:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:53,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 14:09:53,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-19 14:09:53,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:53,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 557 flow. Second operand has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:53,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:53,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:53,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:54,534 INFO L124 PetriNetUnfolderBase]: 5578/9426 cut-off events. [2024-11-19 14:09:54,538 INFO L125 PetriNetUnfolderBase]: For 34630/34630 co-relation queries the response was YES. [2024-11-19 14:09:54,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28498 conditions, 9426 events. 5578/9426 cut-off events. For 34630/34630 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 55561 event pairs, 1581 based on Foata normal form. 646/8733 useless extension candidates. Maximal degree in co-relation 28463. Up to 1721 conditions per place. [2024-11-19 14:09:54,664 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 188 selfloop transitions, 75 changer transitions 3/269 dead transitions. [2024-11-19 14:09:54,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 269 transitions, 2366 flow [2024-11-19 14:09:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 14:09:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 14:09:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 287 transitions. [2024-11-19 14:09:54,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-11-19 14:09:54,670 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 557 flow. Second operand 12 states and 287 transitions. [2024-11-19 14:09:54,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 269 transitions, 2366 flow [2024-11-19 14:09:54,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 269 transitions, 2340 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-11-19 14:09:54,739 INFO L231 Difference]: Finished difference. Result has 86 places, 123 transitions, 1606 flow [2024-11-19 14:09:54,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1606, PETRI_PLACES=86, PETRI_TRANSITIONS=123} [2024-11-19 14:09:54,739 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 46 predicate places. [2024-11-19 14:09:54,739 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 123 transitions, 1606 flow [2024-11-19 14:09:54,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:54,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:54,740 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:54,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 14:09:54,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:54,941 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:54,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:54,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1926067860, now seen corresponding path program 1 times [2024-11-19 14:09:54,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:54,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407244648] [2024-11-19 14:09:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:54,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:09:55,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407244648] [2024-11-19 14:09:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407244648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84454010] [2024-11-19 14:09:55,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:55,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:55,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:55,144 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:55,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 14:09:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:55,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 14:09:55,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:09:55,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:09:55,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84454010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:55,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:55,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 5, 5] total 12 [2024-11-19 14:09:55,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981814349] [2024-11-19 14:09:55,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:55,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 14:09:55,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:55,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 14:09:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-19 14:09:55,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-19 14:09:55,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 123 transitions, 1606 flow. Second operand has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:55,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:55,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-19 14:09:55,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:58,649 INFO L124 PetriNetUnfolderBase]: 9444/16146 cut-off events. [2024-11-19 14:09:58,649 INFO L125 PetriNetUnfolderBase]: For 71443/71443 co-relation queries the response was YES. [2024-11-19 14:09:58,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51257 conditions, 16146 events. 9444/16146 cut-off events. For 71443/71443 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 108250 event pairs, 3912 based on Foata normal form. 545/14322 useless extension candidates. Maximal degree in co-relation 40687. Up to 6962 conditions per place. [2024-11-19 14:09:58,780 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 184 selfloop transitions, 57 changer transitions 11/255 dead transitions. [2024-11-19 14:09:58,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 255 transitions, 3459 flow [2024-11-19 14:09:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:09:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:09:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2024-11-19 14:09:58,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33095238095238094 [2024-11-19 14:09:58,782 INFO L175 Difference]: Start difference. First operand has 86 places, 123 transitions, 1606 flow. Second operand 10 states and 139 transitions. [2024-11-19 14:09:58,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 255 transitions, 3459 flow [2024-11-19 14:09:58,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 255 transitions, 3247 flow, removed 106 selfloop flow, removed 0 redundant places. [2024-11-19 14:09:58,955 INFO L231 Difference]: Finished difference. Result has 98 places, 156 transitions, 2272 flow [2024-11-19 14:09:58,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1520, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2272, PETRI_PLACES=98, PETRI_TRANSITIONS=156} [2024-11-19 14:09:58,955 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 58 predicate places. [2024-11-19 14:09:58,955 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 156 transitions, 2272 flow [2024-11-19 14:09:58,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:58,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:58,956 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:58,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 14:09:59,156 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,SelfDestructingSolverStorable11 [2024-11-19 14:09:59,157 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:09:59,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:59,157 INFO L85 PathProgramCache]: Analyzing trace with hash 454518985, now seen corresponding path program 1 times [2024-11-19 14:09:59,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:59,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382446672] [2024-11-19 14:09:59,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:59,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:59,394 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:09:59,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:59,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382446672] [2024-11-19 14:09:59,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382446672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:59,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784556851] [2024-11-19 14:09:59,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:59,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:59,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:59,428 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:59,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 14:09:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:59,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 14:09:59,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:09:59,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:09:59,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784556851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:59,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:59,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 13 [2024-11-19 14:09:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888910070] [2024-11-19 14:09:59,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:59,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 14:09:59,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:59,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 14:09:59,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=109, Unknown=0, NotChecked=0, Total=210 [2024-11-19 14:09:59,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:09:59,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 156 transitions, 2272 flow. Second operand has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:09:59,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:59,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:09:59,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:10:03,401 INFO L124 PetriNetUnfolderBase]: 15649/26741 cut-off events. [2024-11-19 14:10:03,401 INFO L125 PetriNetUnfolderBase]: For 128022/128022 co-relation queries the response was YES. [2024-11-19 14:10:03,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82840 conditions, 26741 events. 15649/26741 cut-off events. For 128022/128022 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 184371 event pairs, 4138 based on Foata normal form. 1539/24216 useless extension candidates. Maximal degree in co-relation 72102. Up to 8918 conditions per place. [2024-11-19 14:10:03,676 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 278 selfloop transitions, 115 changer transitions 36/432 dead transitions. [2024-11-19 14:10:03,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 432 transitions, 5544 flow [2024-11-19 14:10:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 14:10:03,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 14:10:03,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 290 transitions. [2024-11-19 14:10:03,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4931972789115646 [2024-11-19 14:10:03,678 INFO L175 Difference]: Start difference. First operand has 98 places, 156 transitions, 2272 flow. Second operand 14 states and 290 transitions. [2024-11-19 14:10:03,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 432 transitions, 5544 flow [2024-11-19 14:10:03,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 432 transitions, 5529 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:10:03,923 INFO L231 Difference]: Finished difference. Result has 113 places, 241 transitions, 3931 flow [2024-11-19 14:10:03,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2257, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3931, PETRI_PLACES=113, PETRI_TRANSITIONS=241} [2024-11-19 14:10:03,924 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 73 predicate places. [2024-11-19 14:10:03,925 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 241 transitions, 3931 flow [2024-11-19 14:10:03,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:03,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:03,925 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:03,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 14:10:04,125 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,SelfDestructingSolverStorable12 [2024-11-19 14:10:04,126 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:10:04,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash 225876987, now seen corresponding path program 2 times [2024-11-19 14:10:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:04,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033077775] [2024-11-19 14:10:04,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:10:04,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:04,152 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:10:04,152 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:10:04,355 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:10:04,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:10:04,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033077775] [2024-11-19 14:10:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033077775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:10:04,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138764190] [2024-11-19 14:10:04,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:10:04,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:10:04,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:10:04,358 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:10:04,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 14:10:04,439 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:10:04,439 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:10:04,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 14:10:04,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:10:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:10:04,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:10:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:10:04,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138764190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:10:04,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:10:04,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 28 [2024-11-19 14:10:04,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487459573] [2024-11-19 14:10:04,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:10:04,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-19 14:10:04,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:10:04,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-19 14:10:04,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=470, Unknown=0, NotChecked=0, Total=870 [2024-11-19 14:10:04,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:10:04,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 241 transitions, 3931 flow. Second operand has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:04,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:10:04,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:10:04,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:10:18,052 INFO L124 PetriNetUnfolderBase]: 43281/73631 cut-off events. [2024-11-19 14:10:18,053 INFO L125 PetriNetUnfolderBase]: For 791519/791519 co-relation queries the response was YES. [2024-11-19 14:10:18,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234904 conditions, 73631 events. 43281/73631 cut-off events. For 791519/791519 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 522321 event pairs, 10137 based on Foata normal form. 5968/68249 useless extension candidates. Maximal degree in co-relation 225526. Up to 13632 conditions per place. [2024-11-19 14:10:19,391 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 752 selfloop transitions, 434 changer transitions 114/1303 dead transitions. [2024-11-19 14:10:19,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 1303 transitions, 18448 flow [2024-11-19 14:10:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-19 14:10:19,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-19 14:10:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 829 transitions. [2024-11-19 14:10:19,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.493452380952381 [2024-11-19 14:10:19,402 INFO L175 Difference]: Start difference. First operand has 113 places, 241 transitions, 3931 flow. Second operand 40 states and 829 transitions. [2024-11-19 14:10:19,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 1303 transitions, 18448 flow [2024-11-19 14:10:20,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 1303 transitions, 18416 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-11-19 14:10:20,503 INFO L231 Difference]: Finished difference. Result has 163 places, 547 transitions, 10102 flow [2024-11-19 14:10:20,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3899, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=10102, PETRI_PLACES=163, PETRI_TRANSITIONS=547} [2024-11-19 14:10:20,506 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 123 predicate places. [2024-11-19 14:10:20,506 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 547 transitions, 10102 flow [2024-11-19 14:10:20,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:20,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:20,507 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 14:10:20,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 14:10:20,707 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,SelfDestructingSolverStorable13 [2024-11-19 14:10:20,708 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:10:20,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:20,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1887811607, now seen corresponding path program 2 times [2024-11-19 14:10:20,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:20,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075172960] [2024-11-19 14:10:20,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:10:20,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:20,762 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:10:20,762 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:10:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-19 14:10:20,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:10:20,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075172960] [2024-11-19 14:10:20,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075172960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:10:20,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:10:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:10:20,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628306636] [2024-11-19 14:10:20,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:10:20,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:10:20,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:10:20,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:10:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:10:20,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 14:10:20,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 547 transitions, 10102 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:20,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:10:20,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 14:10:20,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:10:36,807 INFO L124 PetriNetUnfolderBase]: 42593/72667 cut-off events. [2024-11-19 14:10:36,808 INFO L125 PetriNetUnfolderBase]: For 532815/532815 co-relation queries the response was YES. [2024-11-19 14:10:37,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239811 conditions, 72667 events. 42593/72667 cut-off events. For 532815/532815 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 534574 event pairs, 37870 based on Foata normal form. 562/61927 useless extension candidates. Maximal degree in co-relation 226260. Up to 72656 conditions per place. [2024-11-19 14:10:37,890 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 531 selfloop transitions, 1 changer transitions 0/535 dead transitions. [2024-11-19 14:10:37,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 535 transitions, 10698 flow [2024-11-19 14:10:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:10:37,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:10:37,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-19 14:10:37,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492063492063492 [2024-11-19 14:10:37,891 INFO L175 Difference]: Start difference. First operand has 163 places, 547 transitions, 10102 flow. Second operand 3 states and 44 transitions. [2024-11-19 14:10:37,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 535 transitions, 10698 flow [2024-11-19 14:10:39,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 535 transitions, 9765 flow, removed 307 selfloop flow, removed 15 redundant places. [2024-11-19 14:10:39,110 INFO L231 Difference]: Finished difference. Result has 149 places, 535 transitions, 8703 flow [2024-11-19 14:10:39,111 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=8701, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=8703, PETRI_PLACES=149, PETRI_TRANSITIONS=535} [2024-11-19 14:10:39,112 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 109 predicate places. [2024-11-19 14:10:39,113 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 535 transitions, 8703 flow [2024-11-19 14:10:39,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:39,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:39,115 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:39,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 14:10:39,115 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-19 14:10:39,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2043051925, now seen corresponding path program 3 times [2024-11-19 14:10:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:39,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963194910] [2024-11-19 14:10:39,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:10:39,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:39,147 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 14:10:39,147 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:10:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2024-11-19 14:10:39,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:10:39,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963194910] [2024-11-19 14:10:39,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963194910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:10:39,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795070362] [2024-11-19 14:10:39,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:10:39,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:10:39,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:10:39,222 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:10:39,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 14:10:39,303 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 14:10:39,304 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:10:39,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:10:39,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:10:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-19 14:10:39,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:10:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-19 14:10:39,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795070362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:10:39,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:10:39,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 7 [2024-11-19 14:10:39,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629595315] [2024-11-19 14:10:39,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:10:39,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 14:10:39,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:10:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 14:10:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:10:39,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-19 14:10:39,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 535 transitions, 8703 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:39,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:10:39,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-19 14:10:39,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:10:51,355 INFO L124 PetriNetUnfolderBase]: 41685/71238 cut-off events. [2024-11-19 14:10:51,355 INFO L125 PetriNetUnfolderBase]: For 396499/396499 co-relation queries the response was YES. [2024-11-19 14:10:52,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215005 conditions, 71238 events. 41685/71238 cut-off events. For 396499/396499 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 522702 event pairs, 24593 based on Foata normal form. 608/60638 useless extension candidates. Maximal degree in co-relation 214946. Up to 62440 conditions per place. [2024-11-19 14:10:52,220 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 0 selfloop transitions, 0 changer transitions 607/607 dead transitions. [2024-11-19 14:10:52,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 607 transitions, 10424 flow [2024-11-19 14:10:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 14:10:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 14:10:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 96 transitions. [2024-11-19 14:10:52,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2024-11-19 14:10:52,221 INFO L175 Difference]: Start difference. First operand has 149 places, 535 transitions, 8703 flow. Second operand 8 states and 96 transitions. [2024-11-19 14:10:52,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 607 transitions, 10424 flow [2024-11-19 14:10:53,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 607 transitions, 7877 flow, removed 287 selfloop flow, removed 32 redundant places. [2024-11-19 14:10:53,104 INFO L231 Difference]: Finished difference. Result has 121 places, 0 transitions, 0 flow [2024-11-19 14:10:53,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=6062, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=121, PETRI_TRANSITIONS=0} [2024-11-19 14:10:53,104 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 81 predicate places. [2024-11-19 14:10:53,105 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 0 transitions, 0 flow [2024-11-19 14:10:53,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:53,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2024-11-19 14:10:53,111 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2024-11-19 14:10:53,111 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-11-19 14:10:53,111 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-11-19 14:10:53,111 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-11-19 14:10:53,111 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-11-19 14:10:53,111 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-11-19 14:10:53,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-11-19 14:10:53,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-11-19 14:10:53,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 14:10:53,316 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,SelfDestructingSolverStorable15 [2024-11-19 14:10:53,317 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:53,330 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:10:53,330 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:10:53,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:10:53 BasicIcfg [2024-11-19 14:10:53,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:10:53,337 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:10:53,337 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:10:53,337 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:10:53,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:09:45" (3/4) ... [2024-11-19 14:10:53,339 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:10:53,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:10:53,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:10:53,352 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-19 14:10:53,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-19 14:10:53,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-19 14:10:53,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:10:53,471 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:10:53,472 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:10:53,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:10:53,472 INFO L158 Benchmark]: Toolchain (without parser) took 69904.14ms. Allocated memory was 176.2MB in the beginning and 15.2GB in the end (delta: 15.0GB). Free memory was 106.2MB in the beginning and 11.4GB in the end (delta: -11.3GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2024-11-19 14:10:53,472 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory was 132.0MB in the beginning and 131.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:10:53,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.43ms. Allocated memory is still 176.2MB. Free memory was 106.1MB in the beginning and 92.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 14:10:53,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.88ms. Allocated memory is still 176.2MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:10:53,473 INFO L158 Benchmark]: Boogie Preprocessor took 78.20ms. Allocated memory is still 176.2MB. Free memory was 90.9MB in the beginning and 88.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:10:53,473 INFO L158 Benchmark]: RCFGBuilder took 1320.10ms. Allocated memory is still 176.2MB. Free memory was 88.4MB in the beginning and 96.2MB in the end (delta: -7.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-19 14:10:53,473 INFO L158 Benchmark]: TraceAbstraction took 68068.58ms. Allocated memory was 176.2MB in the beginning and 15.2GB in the end (delta: 15.0GB). Free memory was 95.5MB in the beginning and 11.4GB in the end (delta: -11.3GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2024-11-19 14:10:53,474 INFO L158 Benchmark]: Witness Printer took 134.54ms. Allocated memory is still 15.2GB. Free memory was 11.4GB in the beginning and 11.4GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:10:53,475 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory was 132.0MB in the beginning and 131.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.43ms. Allocated memory is still 176.2MB. Free memory was 106.1MB in the beginning and 92.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.88ms. Allocated memory is still 176.2MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.20ms. Allocated memory is still 176.2MB. Free memory was 90.9MB in the beginning and 88.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1320.10ms. Allocated memory is still 176.2MB. Free memory was 88.4MB in the beginning and 96.2MB in the end (delta: -7.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * TraceAbstraction took 68068.58ms. Allocated memory was 176.2MB in the beginning and 15.2GB in the end (delta: 15.0GB). Free memory was 95.5MB in the beginning and 11.4GB in the end (delta: -11.3GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. * Witness Printer took 134.54ms. Allocated memory is still 15.2GB. Free memory was 11.4GB in the beginning and 11.4GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: 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, 64 locations, 28 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: 67.9s, OverallIterations: 16, TraceHistogramMax: 19, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 59.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1900 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1883 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 194 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2124 IncrementalHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 194 mSolverCounterUnsat, 1 mSDtfsCounter, 2124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 531 GetRequests, 384 SyntacticMatches, 2 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10102occurred in iteration=14, InterpolantAutomatonStates: 139, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 561 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 3426 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1330 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 36 InterpolantComputations, 7 PerfectInterpolantSequences, 1678/2385 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:10:53,507 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