./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/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-?-c7c6ca5-m [2024-11-09 15:13:38,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:13:38,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:13:38,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:13:38,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:13:38,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:13:38,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:13:38,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:13:38,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:13:38,097 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:13:38,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:13:38,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:13:38,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:13:38,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:13:38,098 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:13:38,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:13:38,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:13:38,099 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:13:38,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:13:38,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:13:38,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:13:38,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:13:38,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:13:38,100 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:13:38,100 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:13:38,101 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:13:38,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:13:38,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:13:38,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:13:38,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:13:38,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:13:38,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:13:38,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:13:38,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:13:38,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:13:38,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:13:38,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:13:38,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:13:38,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:13:38,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:13:38,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:13:38,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:13:38,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:13:38,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:13:38,104 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 [2024-11-09 15:13:38,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:13:38,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:13:38,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:13:38,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:13:38,289 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:13:38,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-09 15:13:39,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:13:39,661 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:13:39,663 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-09 15:13:39,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a95543578/16bda52633e649d79d9b0e1810e8a95b/FLAGca2a72d02 [2024-11-09 15:13:40,072 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a95543578/16bda52633e649d79d9b0e1810e8a95b [2024-11-09 15:13:40,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:13:40,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:13:40,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:13:40,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:13:40,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:13:40,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ea6bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40, skipping insertion in model container [2024-11-09 15:13:40,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:13:40,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:13:40,298 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:13:40,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:13:40,331 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:13:40,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40 WrapperNode [2024-11-09 15:13:40,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:13:40,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:13:40,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:13:40,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:13:40,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,362 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 189 [2024-11-09 15:13:40,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:13:40,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:13:40,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:13:40,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:13:40,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,386 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]. [2024-11-09 15:13:40,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,392 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:13:40,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:13:40,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:13:40,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:13:40,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:13:40,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:40,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 15:13:40,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 15:13:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:13:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:13:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:13:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:13:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:13:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:13:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:13:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:13:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:13:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:13:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:13:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 15:13:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 15:13:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:13:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:13:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:13:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:13:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:13:40,484 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:13:40,574 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:13:40,577 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:13:40,997 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:13:40,997 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:13:41,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:13:41,289 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 15:13:41,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:13:41 BoogieIcfgContainer [2024-11-09 15:13:41,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:13:41,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:13:41,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:13:41,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:13:41,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:13:40" (1/3) ... [2024-11-09 15:13:41,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5baba0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:13:41, skipping insertion in model container [2024-11-09 15:13:41,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (2/3) ... [2024-11-09 15:13:41,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5baba0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:13:41, skipping insertion in model container [2024-11-09 15:13:41,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:13:41" (3/3) ... [2024-11-09 15:13:41,297 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-11-09 15:13:41,308 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:13:41,308 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 15:13:41,308 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:13:41,365 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:13:41,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 49 transitions, 119 flow [2024-11-09 15:13:41,424 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-09 15:13:41,424 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:13:41,427 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. [2024-11-09 15:13:41,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 49 transitions, 119 flow [2024-11-09 15:13:41,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 44 transitions, 103 flow [2024-11-09 15:13:41,436 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:13:41,441 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;@76bd20be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:13:41,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-09 15:13:41,443 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:13:41,444 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:13:41,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:13:41,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:41,444 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:13:41,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:41,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash 571754, now seen corresponding path program 1 times [2024-11-09 15:13:41,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:41,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985379642] [2024-11-09 15:13:41,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:41,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:41,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985379642] [2024-11-09 15:13:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985379642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:41,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:41,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:13:41,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114104383] [2024-11-09 15:13:41,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:41,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:13:41,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:41,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:13:41,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:13:41,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-09 15:13:41,691 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) [2024-11-09 15:13:41,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:41,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-09 15:13:41,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:42,010 INFO L124 PetriNetUnfolderBase]: 1238/1887 cut-off events. [2024-11-09 15:13:42,010 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-09 15:13:42,016 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. [2024-11-09 15:13:42,027 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 30 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-11-09 15:13:42,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 171 flow [2024-11-09 15:13:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:13:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:13:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-09 15:13:42,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-11-09 15:13:42,040 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 103 flow. Second operand 4 states and 91 transitions. [2024-11-09 15:13:42,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 171 flow [2024-11-09 15:13:42,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 162 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 15:13:42,048 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 117 flow [2024-11-09 15:13:42,050 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} [2024-11-09 15:13:42,053 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-09 15:13:42,054 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 117 flow [2024-11-09 15:13:42,054 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) [2024-11-09 15:13:42,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:42,054 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:13:42,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:13:42,055 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:42,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:42,056 INFO L85 PathProgramCache]: Analyzing trace with hash -146170172, now seen corresponding path program 1 times [2024-11-09 15:13:42,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255555758] [2024-11-09 15:13:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:42,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:42,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:42,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255555758] [2024-11-09 15:13:42,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255555758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:42,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449177298] [2024-11-09 15:13:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:42,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:42,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:42,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:13:42,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:13:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:42,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:13:42,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:42,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:13:42,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449177298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:42,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:13:42,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:13:42,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665443409] [2024-11-09 15:13:42,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:42,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:13:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:42,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:13:42,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:13:42,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-09 15:13:42,298 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) [2024-11-09 15:13:42,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:42,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-09 15:13:42,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:42,590 INFO L124 PetriNetUnfolderBase]: 1238/1886 cut-off events. [2024-11-09 15:13:42,590 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-09 15:13:42,597 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. [2024-11-09 15:13:42,602 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 26 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-11-09 15:13:42,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 43 transitions, 179 flow [2024-11-09 15:13:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:13:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:13:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-11-09 15:13:42,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-11-09 15:13:42,607 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 117 flow. Second operand 6 states and 112 transitions. [2024-11-09 15:13:42,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 43 transitions, 179 flow [2024-11-09 15:13:42,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:13:42,609 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 124 flow [2024-11-09 15:13:42,609 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} [2024-11-09 15:13:42,610 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-09 15:13:42,610 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 124 flow [2024-11-09 15:13:42,610 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) [2024-11-09 15:13:42,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:42,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:13:42,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:13:42,811 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 [2024-11-09 15:13:42,813 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:42,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash -144170786, now seen corresponding path program 1 times [2024-11-09 15:13:42,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:42,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628601413] [2024-11-09 15:13:42,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:42,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:42,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:42,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628601413] [2024-11-09 15:13:42,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628601413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:42,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:42,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:13:42,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072616239] [2024-11-09 15:13:42,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:42,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:13:42,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:42,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:13:42,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:13:42,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-09 15:13:42,940 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) [2024-11-09 15:13:42,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:42,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-09 15:13:42,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:43,160 INFO L124 PetriNetUnfolderBase]: 1275/1998 cut-off events. [2024-11-09 15:13:43,160 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-09 15:13:43,163 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. [2024-11-09 15:13:43,170 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 45 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2024-11-09 15:13:43,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 262 flow [2024-11-09 15:13:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:13:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:13:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-09 15:13:43,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5918367346938775 [2024-11-09 15:13:43,172 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 124 flow. Second operand 4 states and 116 transitions. [2024-11-09 15:13:43,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 262 flow [2024-11-09 15:13:43,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 240 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-09 15:13:43,174 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 133 flow [2024-11-09 15:13:43,174 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} [2024-11-09 15:13:43,174 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-09 15:13:43,175 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 133 flow [2024-11-09 15:13:43,175 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) [2024-11-09 15:13:43,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:43,175 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:13:43,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:13:43,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:43,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash -236307455, now seen corresponding path program 1 times [2024-11-09 15:13:43,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:43,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862161792] [2024-11-09 15:13:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:43,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:43,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862161792] [2024-11-09 15:13:43,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862161792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:43,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64112637] [2024-11-09 15:13:43,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:43,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:43,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:13:43,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:13:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:43,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:13:43,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:43,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:43,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64112637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:43,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:43,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 15:13:43,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280499237] [2024-11-09 15:13:43,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:43,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:13:43,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:43,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:13:43,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:13:43,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-09 15:13:43,347 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) [2024-11-09 15:13:43,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:43,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-09 15:13:43,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:43,552 INFO L124 PetriNetUnfolderBase]: 1278/1960 cut-off events. [2024-11-09 15:13:43,552 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2024-11-09 15:13:43,554 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. [2024-11-09 15:13:43,559 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 30 selfloop transitions, 13 changer transitions 0/53 dead transitions. [2024-11-09 15:13:43,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 249 flow [2024-11-09 15:13:43,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:13:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:13:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2024-11-09 15:13:43,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-09 15:13:43,563 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 133 flow. Second operand 10 states and 175 transitions. [2024-11-09 15:13:43,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 249 flow [2024-11-09 15:13:43,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:13:43,565 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 204 flow [2024-11-09 15:13:43,565 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} [2024-11-09 15:13:43,566 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-09 15:13:43,567 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 204 flow [2024-11-09 15:13:43,567 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) [2024-11-09 15:13:43,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:43,567 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:43,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:13:43,768 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 [2024-11-09 15:13:43,768 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:43,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:43,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1198402201, now seen corresponding path program 1 times [2024-11-09 15:13:43,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:43,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934537341] [2024-11-09 15:13:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:43,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:43,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934537341] [2024-11-09 15:13:43,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934537341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:43,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:43,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:13:43,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368021572] [2024-11-09 15:13:43,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:43,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:13:43,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:13:43,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:13:43,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-09 15:13:43,810 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) [2024-11-09 15:13:43,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:43,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-09 15:13:43,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:43,936 INFO L124 PetriNetUnfolderBase]: 1117/1720 cut-off events. [2024-11-09 15:13:43,936 INFO L125 PetriNetUnfolderBase]: For 351/351 co-relation queries the response was YES. [2024-11-09 15:13:43,939 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. [2024-11-09 15:13:43,944 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 34 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2024-11-09 15:13:43,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 51 transitions, 274 flow [2024-11-09 15:13:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:13:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:13:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-09 15:13:43,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45408163265306123 [2024-11-09 15:13:43,946 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 204 flow. Second operand 4 states and 89 transitions. [2024-11-09 15:13:43,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 51 transitions, 274 flow [2024-11-09 15:13:43,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 259 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-09 15:13:43,949 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 184 flow [2024-11-09 15:13:43,949 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} [2024-11-09 15:13:43,950 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2024-11-09 15:13:43,950 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 184 flow [2024-11-09 15:13:43,951 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) [2024-11-09 15:13:43,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:43,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:43,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:13:43,951 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:43,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:43,952 INFO L85 PathProgramCache]: Analyzing trace with hash 543819076, now seen corresponding path program 1 times [2024-11-09 15:13:43,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:43,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556229857] [2024-11-09 15:13:43,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:44,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:44,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556229857] [2024-11-09 15:13:44,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556229857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:44,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309240958] [2024-11-09 15:13:44,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:44,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:44,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:44,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:13:44,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:13:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:13:44,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:13:44,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:13:44,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309240958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:44,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:13:44,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-09 15:13:44,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917756543] [2024-11-09 15:13:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:44,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:13:44,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:44,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:13:44,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:13:44,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-09 15:13:44,108 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) [2024-11-09 15:13:44,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:44,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-09 15:13:44,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:44,192 INFO L124 PetriNetUnfolderBase]: 467/780 cut-off events. [2024-11-09 15:13:44,192 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-09 15:13:44,194 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. [2024-11-09 15:13:44,196 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 33 selfloop transitions, 1 changer transitions 1/46 dead transitions. [2024-11-09 15:13:44,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 238 flow [2024-11-09 15:13:44,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:13:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:13:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-09 15:13:44,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4965986394557823 [2024-11-09 15:13:44,197 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 184 flow. Second operand 3 states and 73 transitions. [2024-11-09 15:13:44,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 238 flow [2024-11-09 15:13:44,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 46 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:13:44,199 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 162 flow [2024-11-09 15:13:44,200 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} [2024-11-09 15:13:44,200 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 4 predicate places. [2024-11-09 15:13:44,200 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 162 flow [2024-11-09 15:13:44,200 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) [2024-11-09 15:13:44,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:44,200 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:44,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:13:44,401 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 [2024-11-09 15:13:44,401 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:44,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash -368223706, now seen corresponding path program 1 times [2024-11-09 15:13:44,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:44,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461265495] [2024-11-09 15:13:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:44,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:13:44,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:44,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461265495] [2024-11-09 15:13:44,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461265495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:44,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:44,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:13:44,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275797585] [2024-11-09 15:13:44,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:44,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:13:44,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:44,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:13:44,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:13:44,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-09 15:13:44,456 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) [2024-11-09 15:13:44,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:44,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-09 15:13:44,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:44,519 INFO L124 PetriNetUnfolderBase]: 467/760 cut-off events. [2024-11-09 15:13:44,520 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-09 15:13:44,521 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. [2024-11-09 15:13:44,523 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 34 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2024-11-09 15:13:44,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 230 flow [2024-11-09 15:13:44,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:13:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:13:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-11-09 15:13:44,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43537414965986393 [2024-11-09 15:13:44,524 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 162 flow. Second operand 3 states and 64 transitions. [2024-11-09 15:13:44,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 230 flow [2024-11-09 15:13:44,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 44 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:13:44,525 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 161 flow [2024-11-09 15:13:44,526 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} [2024-11-09 15:13:44,526 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 3 predicate places. [2024-11-09 15:13:44,526 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 161 flow [2024-11-09 15:13:44,527 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) [2024-11-09 15:13:44,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:44,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:44,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:13:44,527 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:44,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:44,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1469967613, now seen corresponding path program 1 times [2024-11-09 15:13:44,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:44,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041724967] [2024-11-09 15:13:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:44,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:13:44,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:44,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041724967] [2024-11-09 15:13:44,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041724967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:44,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:44,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:13:44,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119655042] [2024-11-09 15:13:44,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:44,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:13:44,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:13:44,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:13:44,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-09 15:13:44,566 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) [2024-11-09 15:13:44,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:44,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-09 15:13:44,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:44,624 INFO L124 PetriNetUnfolderBase]: 274/561 cut-off events. [2024-11-09 15:13:44,625 INFO L125 PetriNetUnfolderBase]: For 96/103 co-relation queries the response was YES. [2024-11-09 15:13:44,625 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. [2024-11-09 15:13:44,627 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 44 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2024-11-09 15:13:44,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 288 flow [2024-11-09 15:13:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:13:44,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:13:44,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-11-09 15:13:44,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5578231292517006 [2024-11-09 15:13:44,628 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 161 flow. Second operand 3 states and 82 transitions. [2024-11-09 15:13:44,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 288 flow [2024-11-09 15:13:44,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:13:44,630 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 183 flow [2024-11-09 15:13:44,630 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} [2024-11-09 15:13:44,630 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2024-11-09 15:13:44,630 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 183 flow [2024-11-09 15:13:44,631 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) [2024-11-09 15:13:44,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:44,631 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-09 15:13:44,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:13:44,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:44,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:44,632 INFO L85 PathProgramCache]: Analyzing trace with hash 264217243, now seen corresponding path program 2 times [2024-11-09 15:13:44,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:44,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489876593] [2024-11-09 15:13:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:44,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:44,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:44,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489876593] [2024-11-09 15:13:44,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489876593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:44,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808010894] [2024-11-09 15:13:44,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:13:44,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:44,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:44,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:13:44,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:13:44,804 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:13:44,805 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:13:44,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:13:44,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:13:44,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:13:44,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808010894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:44,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:44,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-09 15:13:44,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143465192] [2024-11-09 15:13:44,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:44,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 15:13:44,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 15:13:44,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 15:13:44,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-09 15:13:44,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 183 flow. Second operand has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:13:44,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:44,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-09 15:13:44,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:45,112 INFO L124 PetriNetUnfolderBase]: 275/524 cut-off events. [2024-11-09 15:13:45,112 INFO L125 PetriNetUnfolderBase]: For 224/224 co-relation queries the response was YES. [2024-11-09 15:13:45,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 524 events. 275/524 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2209 event pairs, 206 based on Foata normal form. 2/505 useless extension candidates. Maximal degree in co-relation 1259. Up to 430 conditions per place. [2024-11-09 15:13:45,115 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 21 selfloop transitions, 18 changer transitions 0/48 dead transitions. [2024-11-09 15:13:45,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 48 transitions, 268 flow [2024-11-09 15:13:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:13:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:13:45,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 221 transitions. [2024-11-09 15:13:45,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32215743440233235 [2024-11-09 15:13:45,120 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 183 flow. Second operand 14 states and 221 transitions. [2024-11-09 15:13:45,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 48 transitions, 268 flow [2024-11-09 15:13:45,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 243 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-09 15:13:45,122 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 201 flow [2024-11-09 15:13:45,122 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=14, PETRI_FLOW=201, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2024-11-09 15:13:45,122 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-09 15:13:45,123 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 201 flow [2024-11-09 15:13:45,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:13:45,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:45,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:45,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 15:13:45,323 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 [2024-11-09 15:13:45,323 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:13:45,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash 709609888, now seen corresponding path program 1 times [2024-11-09 15:13:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:45,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461979664] [2024-11-09 15:13:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:45,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:13:45,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:45,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461979664] [2024-11-09 15:13:45,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461979664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:45,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:45,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:13:45,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701379434] [2024-11-09 15:13:45,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:45,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:13:45,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:45,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:13:45,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:13:45,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-09 15:13:45,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 201 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) [2024-11-09 15:13:45,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:45,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-09 15:13:45,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:45,421 INFO L124 PetriNetUnfolderBase]: 275/552 cut-off events. [2024-11-09 15:13:45,421 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-09 15:13:45,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 552 events. 275/552 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2384 event pairs, 140 based on Foata normal form. 38/566 useless extension candidates. Maximal degree in co-relation 1182. Up to 326 conditions per place. [2024-11-09 15:13:45,421 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2024-11-09 15:13:45,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 335 flow [2024-11-09 15:13:45,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:13:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:13:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-09 15:13:45,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2024-11-09 15:13:45,422 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 201 flow. Second operand 3 states and 76 transitions. [2024-11-09 15:13:45,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 335 flow [2024-11-09 15:13:45,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 267 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-09 15:13:45,423 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-11-09 15:13:45,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-11-09 15:13:45,424 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-09 15:13:45,424 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-11-09 15:13:45,424 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) [2024-11-09 15:13:45,427 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-11-09 15:13:45,427 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-09 15:13:45,427 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-09 15:13:45,427 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-09 15:13:45,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-09 15:13:45,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-09 15:13:45,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-09 15:13:45,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-09 15:13:45,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-09 15:13:45,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-09 15:13:45,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-09 15:13:45,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-09 15:13:45,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:13:45,431 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:45,436 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:13:45,436 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:13:45,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:13:45 BasicIcfg [2024-11-09 15:13:45,439 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:13:45,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:13:45,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:13:45,440 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:13:45,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:13:41" (3/4) ... [2024-11-09 15:13:45,441 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:13:45,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:13:45,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:13:45,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 15:13:45,448 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-09 15:13:45,448 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-09 15:13:45,448 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 15:13:45,448 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:13:45,513 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:13:45,514 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:13:45,514 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:13:45,514 INFO L158 Benchmark]: Toolchain (without parser) took 5438.54ms. Allocated memory was 211.8MB in the beginning and 312.5MB in the end (delta: 100.7MB). Free memory was 141.7MB in the beginning and 205.6MB in the end (delta: -63.9MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-09 15:13:45,514 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 98.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:13:45,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.96ms. Allocated memory is still 211.8MB. Free memory was 141.4MB in the beginning and 127.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 15:13:45,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.49ms. Allocated memory is still 211.8MB. Free memory was 127.7MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:13:45,515 INFO L158 Benchmark]: Boogie Preprocessor took 34.99ms. Allocated memory is still 211.8MB. Free memory was 125.6MB in the beginning and 122.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:13:45,515 INFO L158 Benchmark]: RCFGBuilder took 890.94ms. Allocated memory is still 211.8MB. Free memory was 122.9MB in the beginning and 153.3MB in the end (delta: -30.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 15:13:45,519 INFO L158 Benchmark]: TraceAbstraction took 4148.30ms. Allocated memory was 211.8MB in the beginning and 312.5MB in the end (delta: 100.7MB). Free memory was 152.4MB in the beginning and 210.9MB in the end (delta: -58.5MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2024-11-09 15:13:45,519 INFO L158 Benchmark]: Witness Printer took 74.14ms. Allocated memory is still 312.5MB. Free memory was 210.9MB in the beginning and 205.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 15:13:45,520 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 98.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.96ms. Allocated memory is still 211.8MB. Free memory was 141.4MB in the beginning and 127.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.49ms. Allocated memory is still 211.8MB. Free memory was 127.7MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.99ms. Allocated memory is still 211.8MB. Free memory was 125.6MB in the beginning and 122.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 890.94ms. Allocated memory is still 211.8MB. Free memory was 122.9MB in the beginning and 153.3MB in the end (delta: -30.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4148.30ms. Allocated memory was 211.8MB in the beginning and 312.5MB in the end (delta: 100.7MB). Free memory was 152.4MB in the beginning and 210.9MB in the end (delta: -58.5MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 74.14ms. Allocated memory is still 312.5MB. Free memory was 210.9MB in the beginning and 205.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 4.0s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 917 IncrementalHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 10 mSDtfsCounter, 917 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=4, InterpolantAutomatonStates: 54, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 141 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 9 NumberOfNonLiveVariables, 305 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 50/108 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! [2024-11-09 15:13:45,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE