./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-multiply-verify.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/popl20-more-multiply-verify.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 d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:08:10,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:08:11,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:08:11,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:08:11,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:08:11,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:08:11,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:08:11,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:08:11,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:08:11,111 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:08:11,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:08:11,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:08:11,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:08:11,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:08:11,115 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:08:11,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:08:11,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:08:11,116 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:08:11,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:08:11,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:08:11,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:08:11,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:08:11,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:08:11,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:08:11,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:08:11,120 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:08:11,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:08:11,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:08:11,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:08:11,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:08:11,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:08:11,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:08:11,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:08:11,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:08:11,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:08:11,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:08:11,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:08:11,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:08:11,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:08:11,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:08:11,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:08:11,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:08:11,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:08:11,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:08:11,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 [2024-11-19 14:08:11,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:08:11,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:08:11,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:08:11,399 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:08:11,400 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:08:11,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-19 14:08:12,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:08:13,062 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:08:13,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-19 14:08:13,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d43914c/c14674126f374dee91f4420eb2890cdd/FLAG88aa45e1b [2024-11-19 14:08:13,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d43914c/c14674126f374dee91f4420eb2890cdd [2024-11-19 14:08:13,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:08:13,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:08:13,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:08:13,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:08:13,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:08:13,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63751f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13, skipping insertion in model container [2024-11-19 14:08:13,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:08:13,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:08:13,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:08:13,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:08:13,741 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:08:13,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13 WrapperNode [2024-11-19 14:08:13,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:08:13,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:08:13,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:08:13,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:08:13,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,792 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 189 [2024-11-19 14:08:13,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:08:13,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:08:13,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:08:13,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:08:13,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,808 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,826 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 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 14:08:13,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:08:13,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:08:13,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:08:13,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:08:13,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (1/1) ... [2024-11-19 14:08:13,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:08:13,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:13,885 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 14:08:13,890 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 14:08:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:08:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:08:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:08:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:08:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:08:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:08:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:08:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:08:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:08:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:08:13,943 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 14:08:14,065 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:08:14,068 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:08:14,431 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:08:14,431 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:08:14,729 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:08:14,730 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 14:08:14,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:08:14 BoogieIcfgContainer [2024-11-19 14:08:14,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:08:14,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:08:14,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:08:14,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:08:14,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:08:13" (1/3) ... [2024-11-19 14:08:14,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfa8c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:08:14, skipping insertion in model container [2024-11-19 14:08:14,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:13" (2/3) ... [2024-11-19 14:08:14,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfa8c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:08:14, skipping insertion in model container [2024-11-19 14:08:14,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:08:14" (3/3) ... [2024-11-19 14:08:14,742 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-11-19 14:08:14,759 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:08:14,760 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 14:08:14,760 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:08:14,841 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:08:14,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 49 transitions, 119 flow [2024-11-19 14:08:14,925 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-19 14:08:14,925 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:08:14,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 3/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 117 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-19 14:08:14,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 49 transitions, 119 flow [2024-11-19 14:08:14,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 44 transitions, 103 flow [2024-11-19 14:08:14,949 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:08:14,955 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;@389c99f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:08:14,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-19 14:08:14,958 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:08:14,959 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 14:08:14,959 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:08:14,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:14,961 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:08:14,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:14,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash 571754, now seen corresponding path program 1 times [2024-11-19 14:08:14,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:14,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380624923] [2024-11-19 14:08:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:14,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:15,303 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 14:08:15,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:15,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380624923] [2024-11-19 14:08:15,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380624923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:15,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:15,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:15,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888610882] [2024-11-19 14:08:15,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:15,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:15,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:15,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:15,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:15,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-19 14:08:15,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 14:08:15,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:15,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-19 14:08:15,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:15,787 INFO L124 PetriNetUnfolderBase]: 1238/1887 cut-off events. [2024-11-19 14:08:15,787 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-19 14:08:15,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3823 conditions, 1887 events. 1238/1887 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9810 event pairs, 1060 based on Foata normal form. 1/1389 useless extension candidates. Maximal degree in co-relation 3526. Up to 1802 conditions per place. [2024-11-19 14:08:15,811 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 30 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-11-19 14:08:15,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 171 flow [2024-11-19 14:08:15,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:15,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-19 14:08:15,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-11-19 14:08:15,828 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 103 flow. Second operand 4 states and 91 transitions. [2024-11-19 14:08:15,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 171 flow [2024-11-19 14:08:15,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 162 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:08:15,838 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 117 flow [2024-11-19 14:08:15,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2024-11-19 14:08:15,842 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-19 14:08:15,842 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 117 flow [2024-11-19 14:08:15,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 14:08:15,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:15,843 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 14:08:15,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:08:15,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:15,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:15,844 INFO L85 PathProgramCache]: Analyzing trace with hash -146170172, now seen corresponding path program 1 times [2024-11-19 14:08:15,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:15,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855559247] [2024-11-19 14:08:15,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:15,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:15,995 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 14:08:15,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:15,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855559247] [2024-11-19 14:08:15,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855559247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:15,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65673564] [2024-11-19 14:08:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:15,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:15,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:15,999 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 14:08:16,001 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 14:08:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:16,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:16,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:16,149 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 14:08:16,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:08:16,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65673564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:16,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:08:16,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 14:08:16,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830637320] [2024-11-19 14:08:16,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:16,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:08:16,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:08:16,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:08:16,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-19 14:08:16,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:08:16,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:16,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-19 14:08:16,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:16,492 INFO L124 PetriNetUnfolderBase]: 1238/1886 cut-off events. [2024-11-19 14:08:16,492 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-19 14:08:16,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3783 conditions, 1886 events. 1238/1886 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9824 event pairs, 1060 based on Foata normal form. 1/1389 useless extension candidates. Maximal degree in co-relation 3756. Up to 1797 conditions per place. [2024-11-19 14:08:16,508 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 26 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-11-19 14:08:16,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 43 transitions, 179 flow [2024-11-19 14:08:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:08:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:08:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-11-19 14:08:16,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-11-19 14:08:16,512 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 117 flow. Second operand 6 states and 112 transitions. [2024-11-19 14:08:16,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 43 transitions, 179 flow [2024-11-19 14:08:16,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:16,514 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 124 flow [2024-11-19 14:08:16,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2024-11-19 14:08:16,515 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-19 14:08:16,517 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 124 flow [2024-11-19 14:08:16,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:08:16,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:16,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:08:16,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:16,722 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 14:08:16,723 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:16,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -144170786, now seen corresponding path program 1 times [2024-11-19 14:08:16,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:16,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237069067] [2024-11-19 14:08:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:16,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:16,874 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 14:08:16,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:16,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237069067] [2024-11-19 14:08:16,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237069067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:16,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:16,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:16,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417056867] [2024-11-19 14:08:16,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:16,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:16,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:16,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:16,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:16,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-19 14:08:16,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 14:08:16,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:16,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-19 14:08:16,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:17,177 INFO L124 PetriNetUnfolderBase]: 1275/1998 cut-off events. [2024-11-19 14:08:17,177 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-19 14:08:17,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4001 conditions, 1998 events. 1275/1998 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 10160 event pairs, 983 based on Foata normal form. 51/1579 useless extension candidates. Maximal degree in co-relation 3580. Up to 1527 conditions per place. [2024-11-19 14:08:17,191 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 45 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2024-11-19 14:08:17,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 262 flow [2024-11-19 14:08:17,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-19 14:08:17,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5918367346938775 [2024-11-19 14:08:17,193 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 124 flow. Second operand 4 states and 116 transitions. [2024-11-19 14:08:17,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 262 flow [2024-11-19 14:08:17,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 240 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-19 14:08:17,197 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 133 flow [2024-11-19 14:08:17,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2024-11-19 14:08:17,199 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-19 14:08:17,199 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 133 flow [2024-11-19 14:08:17,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 14:08:17,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:17,200 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 14:08:17,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:08:17,200 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:17,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:17,201 INFO L85 PathProgramCache]: Analyzing trace with hash -236307455, now seen corresponding path program 1 times [2024-11-19 14:08:17,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:17,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322001159] [2024-11-19 14:08:17,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:17,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:17,271 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 14:08:17,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:17,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322001159] [2024-11-19 14:08:17,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322001159] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:17,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518094573] [2024-11-19 14:08:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:17,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:17,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:17,274 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 14:08:17,275 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 14:08:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:17,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:17,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:17,382 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 14:08:17,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:17,427 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 14:08:17,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518094573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:17,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:17,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-19 14:08:17,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901162386] [2024-11-19 14:08:17,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:17,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:08:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:08:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:08:17,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-19 14:08:17,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 133 flow. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 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 14:08:17,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:17,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-19 14:08:17,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:17,752 INFO L124 PetriNetUnfolderBase]: 1278/1960 cut-off events. [2024-11-19 14:08:17,752 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2024-11-19 14:08:17,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4687 conditions, 1960 events. 1278/1960 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 9891 event pairs, 1054 based on Foata normal form. 3/1565 useless extension candidates. Maximal degree in co-relation 4224. Up to 1884 conditions per place. [2024-11-19 14:08:17,766 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 30 selfloop transitions, 13 changer transitions 0/53 dead transitions. [2024-11-19 14:08:17,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 249 flow [2024-11-19 14:08:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:08:17,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:08:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2024-11-19 14:08:17,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-19 14:08:17,770 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 133 flow. Second operand 10 states and 175 transitions. [2024-11-19 14:08:17,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 249 flow [2024-11-19 14:08:17,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:17,773 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 204 flow [2024-11-19 14:08:17,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=204, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2024-11-19 14:08:17,775 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-19 14:08:17,776 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 204 flow [2024-11-19 14:08:17,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 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 14:08:17,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:17,776 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:17,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:17,977 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 14:08:17,977 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:17,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:17,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1198402201, now seen corresponding path program 1 times [2024-11-19 14:08:17,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:17,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829942180] [2024-11-19 14:08:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:17,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:18,040 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 14:08:18,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:18,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829942180] [2024-11-19 14:08:18,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829942180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:18,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:18,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:18,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78436658] [2024-11-19 14:08:18,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:18,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:18,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:18,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:18,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-19 14:08:18,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 14:08:18,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:18,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-19 14:08:18,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:18,236 INFO L124 PetriNetUnfolderBase]: 1117/1720 cut-off events. [2024-11-19 14:08:18,237 INFO L125 PetriNetUnfolderBase]: For 351/351 co-relation queries the response was YES. [2024-11-19 14:08:18,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4055 conditions, 1720 events. 1117/1720 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8440 event pairs, 936 based on Foata normal form. 79/1422 useless extension candidates. Maximal degree in co-relation 4019. Up to 1639 conditions per place. [2024-11-19 14:08:18,247 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 34 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2024-11-19 14:08:18,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 51 transitions, 274 flow [2024-11-19 14:08:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-19 14:08:18,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45408163265306123 [2024-11-19 14:08:18,249 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 204 flow. Second operand 4 states and 89 transitions. [2024-11-19 14:08:18,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 51 transitions, 274 flow [2024-11-19 14:08:18,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 259 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-19 14:08:18,253 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 184 flow [2024-11-19 14:08:18,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-11-19 14:08:18,255 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2024-11-19 14:08:18,256 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 184 flow [2024-11-19 14:08:18,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 14:08:18,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:18,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:18,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:08:18,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:18,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:18,258 INFO L85 PathProgramCache]: Analyzing trace with hash 543819076, now seen corresponding path program 1 times [2024-11-19 14:08:18,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:18,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685283482] [2024-11-19 14:08:18,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:18,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:18,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685283482] [2024-11-19 14:08:18,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685283482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516654797] [2024-11-19 14:08:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:18,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:18,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:18,427 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 14:08:18,428 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 14:08:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:18,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:08:18,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:18,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:08:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516654797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:18,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:08:18,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-19 14:08:18,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899729984] [2024-11-19 14:08:18,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:18,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:08:18,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:18,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:08:18,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:08:18,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-19 14:08:18,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 14:08:18,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:18,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-19 14:08:18,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:18,613 INFO L124 PetriNetUnfolderBase]: 467/780 cut-off events. [2024-11-19 14:08:18,613 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-19 14:08:18,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 780 events. 467/780 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3422 event pairs, 378 based on Foata normal form. 0/715 useless extension candidates. Maximal degree in co-relation 1695. Up to 706 conditions per place. [2024-11-19 14:08:18,617 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 33 selfloop transitions, 1 changer transitions 1/46 dead transitions. [2024-11-19 14:08:18,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 238 flow [2024-11-19 14:08:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:08:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:08:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-19 14:08:18,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4965986394557823 [2024-11-19 14:08:18,618 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 184 flow. Second operand 3 states and 73 transitions. [2024-11-19 14:08:18,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 238 flow [2024-11-19 14:08:18,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 46 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:08:18,620 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 162 flow [2024-11-19 14:08:18,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2024-11-19 14:08:18,621 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 4 predicate places. [2024-11-19 14:08:18,621 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 162 flow [2024-11-19 14:08:18,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 14:08:18,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:18,621 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:18,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:08:18,822 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 14:08:18,822 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:18,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash -368223706, now seen corresponding path program 1 times [2024-11-19 14:08:18,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:18,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130498641] [2024-11-19 14:08:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:18,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:18,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:18,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130498641] [2024-11-19 14:08:18,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130498641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:18,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:18,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:08:18,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580844109] [2024-11-19 14:08:18,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:18,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:08:18,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:18,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:08:18,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:08:18,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-19 14:08:18,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 14:08:18,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:18,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-19 14:08:18,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:18,994 INFO L124 PetriNetUnfolderBase]: 467/760 cut-off events. [2024-11-19 14:08:18,994 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-19 14:08:18,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1704 conditions, 760 events. 467/760 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3201 event pairs, 378 based on Foata normal form. 41/745 useless extension candidates. Maximal degree in co-relation 1692. Up to 706 conditions per place. [2024-11-19 14:08:18,999 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 34 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2024-11-19 14:08:18,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 230 flow [2024-11-19 14:08:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:08:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:08:19,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-11-19 14:08:19,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43537414965986393 [2024-11-19 14:08:19,001 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 162 flow. Second operand 3 states and 64 transitions. [2024-11-19 14:08:19,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 230 flow [2024-11-19 14:08:19,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 44 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:19,003 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 161 flow [2024-11-19 14:08:19,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-11-19 14:08:19,004 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 3 predicate places. [2024-11-19 14:08:19,006 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 161 flow [2024-11-19 14:08:19,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 14:08:19,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:19,008 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:19,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:08:19,008 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:19,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:19,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1469967613, now seen corresponding path program 1 times [2024-11-19 14:08:19,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:19,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159174661] [2024-11-19 14:08:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:19,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:19,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:19,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159174661] [2024-11-19 14:08:19,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159174661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:19,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:19,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:19,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722492619] [2024-11-19 14:08:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:19,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:08:19,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:19,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:08:19,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:08:19,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-19 14:08:19,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 14:08:19,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:19,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-19 14:08:19,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:19,163 INFO L124 PetriNetUnfolderBase]: 274/561 cut-off events. [2024-11-19 14:08:19,163 INFO L125 PetriNetUnfolderBase]: For 96/103 co-relation queries the response was YES. [2024-11-19 14:08:19,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 561 events. 274/561 cut-off events. For 96/103 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2561 event pairs, 86 based on Foata normal form. 9/558 useless extension candidates. Maximal degree in co-relation 1175. Up to 313 conditions per place. [2024-11-19 14:08:19,166 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 44 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2024-11-19 14:08:19,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 288 flow [2024-11-19 14:08:19,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:08:19,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:08:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-11-19 14:08:19,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5578231292517006 [2024-11-19 14:08:19,168 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 161 flow. Second operand 3 states and 82 transitions. [2024-11-19 14:08:19,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 288 flow [2024-11-19 14:08:19,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:19,170 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 183 flow [2024-11-19 14:08:19,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-11-19 14:08:19,171 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2024-11-19 14:08:19,171 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 183 flow [2024-11-19 14:08:19,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 14:08:19,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:19,171 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-19 14:08:19,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 14:08:19,171 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:19,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:19,172 INFO L85 PathProgramCache]: Analyzing trace with hash 264217243, now seen corresponding path program 2 times [2024-11-19 14:08:19,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:19,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369418695] [2024-11-19 14:08:19,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:19,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:19,183 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:19,183 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:19,208 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 14:08:19,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:19,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369418695] [2024-11-19 14:08:19,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369418695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:19,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286297931] [2024-11-19 14:08:19,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:19,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:19,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:19,212 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 14:08:19,212 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 14:08:19,273 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:19,273 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:19,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:08:19,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:19,298 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 14:08:19,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:19,325 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 14:08:19,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286297931] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:19,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:19,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-19 14:08:19,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028706536] [2024-11-19 14:08:19,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:19,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:19,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:19,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:19,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:19,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-19 14:08:19,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 14:08:19,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:19,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-19 14:08:19,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:19,420 INFO L124 PetriNetUnfolderBase]: 274/520 cut-off events. [2024-11-19 14:08:19,420 INFO L125 PetriNetUnfolderBase]: For 208/208 co-relation queries the response was YES. [2024-11-19 14:08:19,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 520 events. 274/520 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2170 event pairs, 206 based on Foata normal form. 1/501 useless extension candidates. Maximal degree in co-relation 1246. Up to 429 conditions per place. [2024-11-19 14:08:19,423 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 21 selfloop transitions, 15 changer transitions 0/45 dead transitions. [2024-11-19 14:08:19,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 245 flow [2024-11-19 14:08:19,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:19,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-19 14:08:19,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3877551020408163 [2024-11-19 14:08:19,425 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 183 flow. Second operand 4 states and 76 transitions. [2024-11-19 14:08:19,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 245 flow [2024-11-19 14:08:19,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 222 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-19 14:08:19,426 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 180 flow [2024-11-19 14:08:19,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-11-19 14:08:19,427 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2024-11-19 14:08:19,427 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 180 flow [2024-11-19 14:08:19,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 14:08:19,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:19,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:19,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:19,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:19,629 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:08:19,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:19,629 INFO L85 PathProgramCache]: Analyzing trace with hash 709609888, now seen corresponding path program 1 times [2024-11-19 14:08:19,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:19,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024454469] [2024-11-19 14:08:19,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:19,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:19,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:19,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:19,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024454469] [2024-11-19 14:08:19,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024454469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:19,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:19,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:19,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655345045] [2024-11-19 14:08:19,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:19,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:08:19,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:19,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:08:19,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:08:19,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-19 14:08:19,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 14:08:19,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:19,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-19 14:08:19,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:19,759 INFO L124 PetriNetUnfolderBase]: 274/548 cut-off events. [2024-11-19 14:08:19,759 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-19 14:08:19,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1178 conditions, 548 events. 274/548 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2352 event pairs, 140 based on Foata normal form. 38/563 useless extension candidates. Maximal degree in co-relation 1167. Up to 323 conditions per place. [2024-11-19 14:08:19,761 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2024-11-19 14:08:19,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 57 transitions, 308 flow [2024-11-19 14:08:19,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:08:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:08:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-19 14:08:19,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2024-11-19 14:08:19,762 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 180 flow. Second operand 3 states and 76 transitions. [2024-11-19 14:08:19,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 57 transitions, 308 flow [2024-11-19 14:08:19,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 57 transitions, 278 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:08:19,763 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2024-11-19 14:08:19,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2024-11-19 14:08:19,764 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -1 predicate places. [2024-11-19 14:08:19,764 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2024-11-19 14:08:19,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 14:08:19,766 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-11-19 14:08:19,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-19 14:08:19,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-19 14:08:19,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-19 14:08:19,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-19 14:08:19,767 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-19 14:08:19,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-19 14:08:19,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-19 14:08:19,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:08:19,769 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:19,775 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:08:19,775 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:08:19,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:08:19 BasicIcfg [2024-11-19 14:08:19,779 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:08:19,779 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:08:19,779 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:08:19,779 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:08:19,780 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:08:14" (3/4) ... [2024-11-19 14:08:19,781 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:08:19,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:08:19,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:08:19,784 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-19 14:08:19,788 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-19 14:08:19,788 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-19 14:08:19,788 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 14:08:19,789 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:08:19,872 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:08:19,872 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:08:19,872 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:08:19,873 INFO L158 Benchmark]: Toolchain (without parser) took 6468.82ms. Allocated memory was 174.1MB in the beginning and 295.7MB in the end (delta: 121.6MB). Free memory was 143.7MB in the beginning and 86.7MB in the end (delta: 57.0MB). Peak memory consumption was 180.6MB. Max. memory is 16.1GB. [2024-11-19 14:08:19,873 INFO L158 Benchmark]: CDTParser took 1.47ms. Allocated memory is still 174.1MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:08:19,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.97ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 128.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 14:08:19,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.33ms. Allocated memory is still 174.1MB. Free memory was 128.9MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:08:19,874 INFO L158 Benchmark]: Boogie Preprocessor took 48.45ms. Allocated memory is still 174.1MB. Free memory was 126.9MB in the beginning and 124.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:08:19,874 INFO L158 Benchmark]: RCFGBuilder took 885.90ms. Allocated memory is still 174.1MB. Free memory was 124.0MB in the beginning and 71.6MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-19 14:08:19,874 INFO L158 Benchmark]: TraceAbstraction took 5045.01ms. Allocated memory was 174.1MB in the beginning and 295.7MB in the end (delta: 121.6MB). Free memory was 70.9MB in the beginning and 92.0MB in the end (delta: -21.1MB). Peak memory consumption was 103.0MB. Max. memory is 16.1GB. [2024-11-19 14:08:19,875 INFO L158 Benchmark]: Witness Printer took 93.11ms. Allocated memory is still 295.7MB. Free memory was 92.0MB in the beginning and 86.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:08:19,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47ms. Allocated memory is still 174.1MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.97ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 128.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.33ms. Allocated memory is still 174.1MB. Free memory was 128.9MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.45ms. Allocated memory is still 174.1MB. Free memory was 126.9MB in the beginning and 124.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 885.90ms. Allocated memory is still 174.1MB. Free memory was 124.0MB in the beginning and 71.6MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5045.01ms. Allocated memory was 174.1MB in the beginning and 295.7MB in the end (delta: 121.6MB). Free memory was 70.9MB in the beginning and 92.0MB in the end (delta: -21.1MB). Peak memory consumption was 103.0MB. Max. memory is 16.1GB. * Witness Printer took 93.11ms. Allocated memory is still 295.7MB. Free memory was 92.0MB in the beginning and 86.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: 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 7 procedures, 80 locations, 25 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 782 IncrementalHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 10 mSDtfsCounter, 782 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=4, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 141 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 9 NumberOfNonLiveVariables, 305 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 72/108 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:08:19,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE