./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:05:31,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:05:31,114 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 22:05:31,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:05:31,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:05:31,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:05:31,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:05:31,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:05:31,147 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:05:31,148 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:05:31,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 22:05:31,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 22:05:31,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:05:31,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:05:31,151 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:05:31,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:05:31,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 22:05:31,152 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:05:31,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:05:31,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:05:31,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:05:31,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 22:05:31,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 22:05:31,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 22:05:31,155 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:05:31,155 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 22:05:31,155 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:05:31,155 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:05:31,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:05:31,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:05:31,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:05:31,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:05:31,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 22:05:31,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 22:05:31,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:05:31,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:05:31,157 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 22:05:31,157 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 22:05:31,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:05:31,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 22:05:31,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 22:05:31,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 22:05:31,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 22:05:31,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 22:05:31,159 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2024-11-20 22:05:31,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:05:31,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:05:31,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:05:31,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:05:31,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:05:31,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-20 22:05:32,788 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:05:32,931 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:05:32,931 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-20 22:05:32,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2dfdcb27/932c2cbfd33f4b63aca9da45c9577004/FLAG935ff90b5 [2024-11-20 22:05:32,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2dfdcb27/932c2cbfd33f4b63aca9da45c9577004 [2024-11-20 22:05:32,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:05:32,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:05:32,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:05:32,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:05:32,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:05:32,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:05:32" (1/1) ... [2024-11-20 22:05:32,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698974b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:32, skipping insertion in model container [2024-11-20 22:05:32,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:05:32" (1/1) ... [2024-11-20 22:05:32,978 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:05:33,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:05:33,139 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:05:33,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:05:33,199 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:05:33,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33 WrapperNode [2024-11-20 22:05:33,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:05:33,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:05:33,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:05:33,204 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:05:33,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,245 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 147 [2024-11-20 22:05:33,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:05:33,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:05:33,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:05:33,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:05:33,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,272 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-20 22:05:33,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:05:33,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:05:33,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:05:33,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:05:33,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (1/1) ... [2024-11-20 22:05:33,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:05:33,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:33,313 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) [2024-11-20 22:05:33,315 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 [2024-11-20 22:05:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:05:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 22:05:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 22:05:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 22:05:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 22:05:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:05:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 22:05:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 22:05:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 22:05:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 22:05:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 22:05:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 22:05:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:05:33,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:05:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 22:05:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 22:05:33,365 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 22:05:33,459 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:05:33,461 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:05:33,691 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 22:05:33,691 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:05:33,900 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:05:33,901 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 22:05:33,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:05:33 BoogieIcfgContainer [2024-11-20 22:05:33,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:05:33,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 22:05:33,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 22:05:33,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 22:05:33,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:05:32" (1/3) ... [2024-11-20 22:05:33,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3caa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:05:33, skipping insertion in model container [2024-11-20 22:05:33,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:05:33" (2/3) ... [2024-11-20 22:05:33,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3caa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:05:33, skipping insertion in model container [2024-11-20 22:05:33,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:05:33" (3/3) ... [2024-11-20 22:05:33,908 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2024-11-20 22:05:33,920 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 22:05:33,920 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-20 22:05:33,920 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 22:05:33,969 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 22:05:33,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2024-11-20 22:05:34,021 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2024-11-20 22:05:34,025 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 22:05:34,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 5/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 100 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-20 22:05:34,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2024-11-20 22:05:34,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2024-11-20 22:05:34,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 22:05:34,051 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;@110c987d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 22:05:34,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-20 22:05:34,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 22:05:34,054 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-20 22:05:34,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 22:05:34,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:34,055 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 22:05:34,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:34,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash 505329, now seen corresponding path program 1 times [2024-11-20 22:05:34,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:34,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817004838] [2024-11-20 22:05:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:34,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:34,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:34,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817004838] [2024-11-20 22:05:34,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817004838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:34,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:05:34,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:05:34,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157833556] [2024-11-20 22:05:34,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:34,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:05:34,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:05:34,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:05:34,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-20 22:05:34,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:34,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:34,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-20 22:05:34,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:34,545 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2024-11-20 22:05:34,546 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-20 22:05:34,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 462 events. 265/462 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1939 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 885. Up to 456 conditions per place. [2024-11-20 22:05:34,550 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2024-11-20 22:05:34,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2024-11-20 22:05:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:05:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:05:34,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-20 22:05:34,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-20 22:05:34,561 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2024-11-20 22:05:34,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2024-11-20 22:05:34,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 22:05:34,565 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2024-11-20 22:05:34,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2024-11-20 22:05:34,569 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-20 22:05:34,569 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2024-11-20 22:05:34,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:34,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:34,570 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-20 22:05:34,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 22:05:34,570 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:34,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2125143173, now seen corresponding path program 1 times [2024-11-20 22:05:34,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:34,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893530285] [2024-11-20 22:05:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:34,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:34,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:34,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893530285] [2024-11-20 22:05:34,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893530285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:34,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744636824] [2024-11-20 22:05:34,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:34,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:34,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:34,659 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) [2024-11-20 22:05:34,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 22:05:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:34,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:05:34,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:34,778 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:05:34,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744636824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:34,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:05:34,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 22:05:34,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060534450] [2024-11-20 22:05:34,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:34,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 22:05:34,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:34,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:05:34,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:05:34,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-20 22:05:34,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:34,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:34,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-20 22:05:34,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:34,962 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2024-11-20 22:05:34,963 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 22:05:34,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 461 events. 265/461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1938 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 927. Up to 451 conditions per place. [2024-11-20 22:05:34,968 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2024-11-20 22:05:34,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2024-11-20 22:05:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:05:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:05:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-11-20 22:05:34,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-11-20 22:05:34,971 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2024-11-20 22:05:34,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2024-11-20 22:05:34,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:05:34,973 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2024-11-20 22:05:34,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2024-11-20 22:05:34,973 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-20 22:05:34,973 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2024-11-20 22:05:34,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:34,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:34,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:34,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 22:05:35,179 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 [2024-11-20 22:05:35,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:35,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:35,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648030, now seen corresponding path program 1 times [2024-11-20 22:05:35,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:35,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451410685] [2024-11-20 22:05:35,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:35,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:35,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:35,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451410685] [2024-11-20 22:05:35,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451410685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:35,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:05:35,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:05:35,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431959719] [2024-11-20 22:05:35,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:35,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:05:35,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:35,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:05:35,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:05:35,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:35,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:35,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:35,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:35,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:35,342 INFO L124 PetriNetUnfolderBase]: 339/597 cut-off events. [2024-11-20 22:05:35,342 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-20 22:05:35,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 597 events. 339/597 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2534 event pairs, 134 based on Foata normal form. 13/424 useless extension candidates. Maximal degree in co-relation 1210. Up to 425 conditions per place. [2024-11-20 22:05:35,346 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 37 selfloop transitions, 2 changer transitions 3/46 dead transitions. [2024-11-20 22:05:35,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 215 flow [2024-11-20 22:05:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:05:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:05:35,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-11-20 22:05:35,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-20 22:05:35,348 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2024-11-20 22:05:35,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 215 flow [2024-11-20 22:05:35,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 193 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-20 22:05:35,350 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 100 flow [2024-11-20 22:05:35,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-20 22:05:35,351 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2024-11-20 22:05:35,352 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 100 flow [2024-11-20 22:05:35,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:35,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:35,352 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-20 22:05:35,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 22:05:35,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:35,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1454928451, now seen corresponding path program 1 times [2024-11-20 22:05:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307034321] [2024-11-20 22:05:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:35,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:35,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:35,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307034321] [2024-11-20 22:05:35,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307034321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:35,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587113028] [2024-11-20 22:05:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:35,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:35,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:35,431 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) [2024-11-20 22:05:35,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 22:05:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:35,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:05:35,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:35,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:05:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:35,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587113028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:05:35,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:05:35,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-20 22:05:35,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198395064] [2024-11-20 22:05:35,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:05:35,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 22:05:35,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:35,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 22:05:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 22:05:35,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-20 22:05:35,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 100 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:35,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:35,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-20 22:05:35,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:35,744 INFO L124 PetriNetUnfolderBase]: 342/609 cut-off events. [2024-11-20 22:05:35,744 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 22:05:35,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 609 events. 342/609 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2681 event pairs, 300 based on Foata normal form. 3/453 useless extension candidates. Maximal degree in co-relation 1360. Up to 594 conditions per place. [2024-11-20 22:05:35,747 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2024-11-20 22:05:35,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 208 flow [2024-11-20 22:05:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:05:35,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:05:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2024-11-20 22:05:35,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2024-11-20 22:05:35,748 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 100 flow. Second operand 10 states and 91 transitions. [2024-11-20 22:05:35,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 208 flow [2024-11-20 22:05:35,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:05:35,750 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 172 flow [2024-11-20 22:05:35,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2024-11-20 22:05:35,751 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-20 22:05:35,751 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 172 flow [2024-11-20 22:05:35,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:35,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:35,751 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:35,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 22:05:35,955 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 [2024-11-20 22:05:35,956 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:35,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:35,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648029, now seen corresponding path program 1 times [2024-11-20 22:05:35,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:35,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311235687] [2024-11-20 22:05:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:35,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:35,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311235687] [2024-11-20 22:05:35,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311235687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:35,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:05:35,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:05:35,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813970889] [2024-11-20 22:05:35,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:35,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:05:35,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:35,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:05:35,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:05:35,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:35,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:35,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:35,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:35,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:36,054 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2024-11-20 22:05:36,054 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-20 22:05:36,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 582 events. 327/582 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2488 event pairs, 119 based on Foata normal form. 12/440 useless extension candidates. Maximal degree in co-relation 1332. Up to 425 conditions per place. [2024-11-20 22:05:36,057 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 45 selfloop transitions, 2 changer transitions 3/54 dead transitions. [2024-11-20 22:05:36,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 299 flow [2024-11-20 22:05:36,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:05:36,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:05:36,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-20 22:05:36,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-11-20 22:05:36,058 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 172 flow. Second operand 3 states and 60 transitions. [2024-11-20 22:05:36,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 299 flow [2024-11-20 22:05:36,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 288 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-20 22:05:36,060 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 169 flow [2024-11-20 22:05:36,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-11-20 22:05:36,061 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-11-20 22:05:36,061 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 169 flow [2024-11-20 22:05:36,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:36,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:36,061 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:36,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 22:05:36,062 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:36,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:36,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375046, now seen corresponding path program 1 times [2024-11-20 22:05:36,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:36,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46543019] [2024-11-20 22:05:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:36,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:36,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:36,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46543019] [2024-11-20 22:05:36,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46543019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:36,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772710171] [2024-11-20 22:05:36,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:36,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:36,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:36,097 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) [2024-11-20 22:05:36,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 22:05:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:36,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:05:36,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:36,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:36,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:05:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772710171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:36,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:05:36,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-11-20 22:05:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246286688] [2024-11-20 22:05:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:36,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:05:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:05:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-20 22:05:36,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:36,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:36,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:36,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:36,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:36,299 INFO L124 PetriNetUnfolderBase]: 415/709 cut-off events. [2024-11-20 22:05:36,299 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-20 22:05:36,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 709 events. 415/709 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2879 event pairs, 173 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 1648. Up to 371 conditions per place. [2024-11-20 22:05:36,302 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 47 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2024-11-20 22:05:36,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 320 flow [2024-11-20 22:05:36,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:05:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:05:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-20 22:05:36,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-11-20 22:05:36,305 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 169 flow. Second operand 4 states and 73 transitions. [2024-11-20 22:05:36,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 320 flow [2024-11-20 22:05:36,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:05:36,307 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 214 flow [2024-11-20 22:05:36,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2024-11-20 22:05:36,307 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2024-11-20 22:05:36,307 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 214 flow [2024-11-20 22:05:36,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:36,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:36,308 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:36,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 22:05:36,512 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 [2024-11-20 22:05:36,513 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:36,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:36,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375039, now seen corresponding path program 1 times [2024-11-20 22:05:36,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:36,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337884808] [2024-11-20 22:05:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:36,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:36,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337884808] [2024-11-20 22:05:36,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337884808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:36,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288459626] [2024-11-20 22:05:36,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:36,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:36,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:36,559 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) [2024-11-20 22:05:36,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 22:05:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:36,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:05:36,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:36,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:05:36,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:36,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288459626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:05:36,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:05:36,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-20 22:05:36,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272450385] [2024-11-20 22:05:36,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:05:36,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 22:05:36,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:36,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 22:05:36,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 22:05:36,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:36,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:36,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:36,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:36,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:36,821 INFO L124 PetriNetUnfolderBase]: 1040/1773 cut-off events. [2024-11-20 22:05:36,821 INFO L125 PetriNetUnfolderBase]: For 931/931 co-relation queries the response was YES. [2024-11-20 22:05:36,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4557 conditions, 1773 events. 1040/1773 cut-off events. For 931/931 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8199 event pairs, 276 based on Foata normal form. 26/1525 useless extension candidates. Maximal degree in co-relation 4519. Up to 556 conditions per place. [2024-11-20 22:05:36,829 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 94 selfloop transitions, 9 changer transitions 3/110 dead transitions. [2024-11-20 22:05:36,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 110 transitions, 640 flow [2024-11-20 22:05:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:05:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:05:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-11-20 22:05:36,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5436507936507936 [2024-11-20 22:05:36,830 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 214 flow. Second operand 6 states and 137 transitions. [2024-11-20 22:05:36,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 110 transitions, 640 flow [2024-11-20 22:05:36,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 110 transitions, 611 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-11-20 22:05:36,834 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 309 flow [2024-11-20 22:05:36,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2024-11-20 22:05:36,834 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2024-11-20 22:05:36,834 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 309 flow [2024-11-20 22:05:36,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:36,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:36,835 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:36,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 22:05:37,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:37,039 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:37,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:37,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375045, now seen corresponding path program 1 times [2024-11-20 22:05:37,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:37,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306627433] [2024-11-20 22:05:37,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:37,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:37,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:37,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306627433] [2024-11-20 22:05:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306627433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270890308] [2024-11-20 22:05:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:37,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:37,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:37,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:05:37,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 22:05:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:37,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:05:37,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:37,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:05:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:37,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270890308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:05:37,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:05:37,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-20 22:05:37,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668029432] [2024-11-20 22:05:37,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:05:37,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 22:05:37,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:37,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 22:05:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-20 22:05:37,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:37,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 309 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:37,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:37,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:37,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:37,717 INFO L124 PetriNetUnfolderBase]: 1824/3102 cut-off events. [2024-11-20 22:05:37,718 INFO L125 PetriNetUnfolderBase]: For 4067/4067 co-relation queries the response was YES. [2024-11-20 22:05:37,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8295 conditions, 3102 events. 1824/3102 cut-off events. For 4067/4067 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16215 event pairs, 333 based on Foata normal form. 247/2910 useless extension candidates. Maximal degree in co-relation 8253. Up to 1357 conditions per place. [2024-11-20 22:05:37,744 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 18 changer transitions 18/139 dead transitions. [2024-11-20 22:05:37,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 139 transitions, 923 flow [2024-11-20 22:05:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 22:05:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 22:05:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-11-20 22:05:37,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-11-20 22:05:37,746 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 309 flow. Second operand 8 states and 170 transitions. [2024-11-20 22:05:37,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 139 transitions, 923 flow [2024-11-20 22:05:37,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 139 transitions, 923 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 22:05:37,756 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 576 flow [2024-11-20 22:05:37,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=576, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-11-20 22:05:37,757 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 31 predicate places. [2024-11-20 22:05:37,758 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 576 flow [2024-11-20 22:05:37,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:37,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:37,759 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-20 22:05:37,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 22:05:37,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:37,963 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:37,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:37,963 INFO L85 PathProgramCache]: Analyzing trace with hash 736662151, now seen corresponding path program 2 times [2024-11-20 22:05:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234745632] [2024-11-20 22:05:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:38,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:38,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234745632] [2024-11-20 22:05:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234745632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:38,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801206273] [2024-11-20 22:05:38,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:05:38,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:38,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:38,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:05:38,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 22:05:38,141 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:05:38,141 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:05:38,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 22:05:38,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:38,174 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:05:38,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:05:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:05:38,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801206273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:05:38,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:05:38,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-20 22:05:38,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671367169] [2024-11-20 22:05:38,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:05:38,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 22:05:38,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:38,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 22:05:38,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-20 22:05:38,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-20 22:05:38,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 576 flow. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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) [2024-11-20 22:05:38,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:38,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-20 22:05:38,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:38,629 INFO L124 PetriNetUnfolderBase]: 1825/3105 cut-off events. [2024-11-20 22:05:38,629 INFO L125 PetriNetUnfolderBase]: For 7926/7926 co-relation queries the response was YES. [2024-11-20 22:05:38,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9520 conditions, 3105 events. 1825/3105 cut-off events. For 7926/7926 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16945 event pairs, 1563 based on Foata normal form. 2/2667 useless extension candidates. Maximal degree in co-relation 9465. Up to 3084 conditions per place. [2024-11-20 22:05:38,641 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 47 selfloop transitions, 19 changer transitions 0/69 dead transitions. [2024-11-20 22:05:38,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 69 transitions, 714 flow [2024-11-20 22:05:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 22:05:38,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 22:05:38,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 110 transitions. [2024-11-20 22:05:38,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1870748299319728 [2024-11-20 22:05:38,642 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 576 flow. Second operand 14 states and 110 transitions. [2024-11-20 22:05:38,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 69 transitions, 714 flow [2024-11-20 22:05:38,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 692 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-20 22:05:38,654 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 598 flow [2024-11-20 22:05:38,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=598, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-11-20 22:05:38,655 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 38 predicate places. [2024-11-20 22:05:38,655 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 598 flow [2024-11-20 22:05:38,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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) [2024-11-20 22:05:38,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:38,656 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2024-11-20 22:05:38,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 22:05:38,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:38,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:38,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:38,858 INFO L85 PathProgramCache]: Analyzing trace with hash 504756521, now seen corresponding path program 2 times [2024-11-20 22:05:38,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:38,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309252411] [2024-11-20 22:05:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:38,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:05:38,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:38,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309252411] [2024-11-20 22:05:38,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309252411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:38,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140332542] [2024-11-20 22:05:38,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:05:38,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:38,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:38,936 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:05:38,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 22:05:38,993 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:05:38,993 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:05:38,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 22:05:38,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 22:05:39,042 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:05:39,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140332542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:39,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:05:39,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2024-11-20 22:05:39,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448477382] [2024-11-20 22:05:39,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:39,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:05:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:39,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:05:39,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:05:39,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:39,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-20 22:05:39,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:39,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:39,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:39,235 INFO L124 PetriNetUnfolderBase]: 1668/2868 cut-off events. [2024-11-20 22:05:39,235 INFO L125 PetriNetUnfolderBase]: For 7564/7564 co-relation queries the response was YES. [2024-11-20 22:05:39,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8213 conditions, 2868 events. 1668/2868 cut-off events. For 7564/7564 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 15648 event pairs, 1472 based on Foata normal form. 122/2558 useless extension candidates. Maximal degree in co-relation 8104. Up to 2859 conditions per place. [2024-11-20 22:05:39,245 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 59 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2024-11-20 22:05:39,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 634 flow [2024-11-20 22:05:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:05:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:05:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-20 22:05:39,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492063492063492 [2024-11-20 22:05:39,246 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 598 flow. Second operand 3 states and 44 transitions. [2024-11-20 22:05:39,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 634 flow [2024-11-20 22:05:39,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 547 flow, removed 11 selfloop flow, removed 13 redundant places. [2024-11-20 22:05:39,255 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 429 flow [2024-11-20 22:05:39,255 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-20 22:05:39,256 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2024-11-20 22:05:39,256 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 429 flow [2024-11-20 22:05:39,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-20 22:05:39,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:39,256 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:39,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 22:05:39,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:39,461 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:39,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1905796755, now seen corresponding path program 1 times [2024-11-20 22:05:39,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:39,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10876787] [2024-11-20 22:05:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-20 22:05:39,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10876787] [2024-11-20 22:05:39,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10876787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:39,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:05:39,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:05:39,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489595215] [2024-11-20 22:05:39,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:39,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:05:39,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:39,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:05:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:05:39,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:39,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 429 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-20 22:05:39,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:39,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:39,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:39,770 INFO L124 PetriNetUnfolderBase]: 1735/3004 cut-off events. [2024-11-20 22:05:39,770 INFO L125 PetriNetUnfolderBase]: For 5626/5626 co-relation queries the response was YES. [2024-11-20 22:05:39,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8393 conditions, 3004 events. 1735/3004 cut-off events. For 5626/5626 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 16270 event pairs, 1540 based on Foata normal form. 12/2561 useless extension candidates. Maximal degree in co-relation 8369. Up to 2857 conditions per place. [2024-11-20 22:05:39,782 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 57 selfloop transitions, 2 changer transitions 14/76 dead transitions. [2024-11-20 22:05:39,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 76 transitions, 605 flow [2024-11-20 22:05:39,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:05:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:05:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-20 22:05:39,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-20 22:05:39,783 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 429 flow. Second operand 4 states and 66 transitions. [2024-11-20 22:05:39,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 76 transitions, 605 flow [2024-11-20 22:05:39,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:05:39,790 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 432 flow [2024-11-20 22:05:39,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=432, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2024-11-20 22:05:39,791 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 28 predicate places. [2024-11-20 22:05:39,791 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 432 flow [2024-11-20 22:05:39,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-20 22:05:39,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:39,791 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:39,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 22:05:39,792 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:39,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash 454518985, now seen corresponding path program 1 times [2024-11-20 22:05:39,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:39,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936259319] [2024-11-20 22:05:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:39,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:05:39,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:39,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936259319] [2024-11-20 22:05:39,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936259319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:39,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513487032] [2024-11-20 22:05:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:39,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:39,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:39,876 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:05:39,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 22:05:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:39,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 22:05:39,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:05:40,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:05:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:05:40,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513487032] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:05:40,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:05:40,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 13 [2024-11-20 22:05:40,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968938550] [2024-11-20 22:05:40,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:05:40,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 22:05:40,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:40,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 22:05:40,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=109, Unknown=0, NotChecked=0, Total=210 [2024-11-20 22:05:40,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:40,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 432 flow. Second operand has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:40,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:40,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:40,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:40,987 INFO L124 PetriNetUnfolderBase]: 4852/8292 cut-off events. [2024-11-20 22:05:40,987 INFO L125 PetriNetUnfolderBase]: For 19440/19440 co-relation queries the response was YES. [2024-11-20 22:05:41,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22341 conditions, 8292 events. 4852/8292 cut-off events. For 19440/19440 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 45460 event pairs, 1243 based on Foata normal form. 408/7421 useless extension candidates. Maximal degree in co-relation 22315. Up to 1535 conditions per place. [2024-11-20 22:05:41,025 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 165 selfloop transitions, 51 changer transitions 42/261 dead transitions. [2024-11-20 22:05:41,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 261 transitions, 1925 flow [2024-11-20 22:05:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 22:05:41,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 22:05:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 287 transitions. [2024-11-20 22:05:41,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-11-20 22:05:41,028 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 432 flow. Second operand 14 states and 287 transitions. [2024-11-20 22:05:41,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 261 transitions, 1925 flow [2024-11-20 22:05:41,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 261 transitions, 1919 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-20 22:05:41,052 INFO L231 Difference]: Finished difference. Result has 84 places, 101 transitions, 1068 flow [2024-11-20 22:05:41,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1068, PETRI_PLACES=84, PETRI_TRANSITIONS=101} [2024-11-20 22:05:41,053 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 44 predicate places. [2024-11-20 22:05:41,054 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 101 transitions, 1068 flow [2024-11-20 22:05:41,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:41,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:41,054 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:41,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 22:05:41,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-20 22:05:41,256 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:41,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash -7735982, now seen corresponding path program 1 times [2024-11-20 22:05:41,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:41,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296151202] [2024-11-20 22:05:41,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:41,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-20 22:05:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:41,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296151202] [2024-11-20 22:05:41,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296151202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:05:41,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:05:41,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:05:41,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983113817] [2024-11-20 22:05:41,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:05:41,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:05:41,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:41,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:05:41,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:05:41,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:41,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 101 transitions, 1068 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-20 22:05:41,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:41,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:41,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:42,228 INFO L124 PetriNetUnfolderBase]: 4820/8247 cut-off events. [2024-11-20 22:05:42,228 INFO L125 PetriNetUnfolderBase]: For 22586/22586 co-relation queries the response was YES. [2024-11-20 22:05:42,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23811 conditions, 8247 events. 4820/8247 cut-off events. For 22586/22586 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 47423 event pairs, 4273 based on Foata normal form. 26/6996 useless extension candidates. Maximal degree in co-relation 23779. Up to 8238 conditions per place. [2024-11-20 22:05:42,250 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 92 selfloop transitions, 1 changer transitions 3/99 dead transitions. [2024-11-20 22:05:42,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 99 transitions, 1218 flow [2024-11-20 22:05:42,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:05:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:05:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-20 22:05:42,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-11-20 22:05:42,252 INFO L175 Difference]: Start difference. First operand has 84 places, 101 transitions, 1068 flow. Second operand 3 states and 42 transitions. [2024-11-20 22:05:42,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 99 transitions, 1218 flow [2024-11-20 22:05:42,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 99 transitions, 1163 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-20 22:05:42,288 INFO L231 Difference]: Finished difference. Result has 81 places, 96 transitions, 966 flow [2024-11-20 22:05:42,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=966, PETRI_PLACES=81, PETRI_TRANSITIONS=96} [2024-11-20 22:05:42,289 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 41 predicate places. [2024-11-20 22:05:42,289 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 96 transitions, 966 flow [2024-11-20 22:05:42,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-20 22:05:42,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:42,290 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:42,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 22:05:42,290 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:42,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash -267872235, now seen corresponding path program 2 times [2024-11-20 22:05:42,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:42,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891753599] [2024-11-20 22:05:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:05:42,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:42,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891753599] [2024-11-20 22:05:42,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891753599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:42,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683127642] [2024-11-20 22:05:42,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:05:42,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:42,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:42,511 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:05:42,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 22:05:42,583 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 22:05:42,583 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:05:42,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 22:05:42,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:42,746 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:05:42,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:05:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:05:42,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683127642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:05:42,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:05:42,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 28 [2024-11-20 22:05:42,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874398982] [2024-11-20 22:05:42,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:05:42,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-20 22:05:42,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:42,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-20 22:05:42,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=470, Unknown=0, NotChecked=0, Total=870 [2024-11-20 22:05:42,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:42,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 96 transitions, 966 flow. Second operand has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:42,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:42,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:42,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:44,878 INFO L124 PetriNetUnfolderBase]: 7354/12390 cut-off events. [2024-11-20 22:05:44,878 INFO L125 PetriNetUnfolderBase]: For 85076/85076 co-relation queries the response was YES. [2024-11-20 22:05:44,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38388 conditions, 12390 events. 7354/12390 cut-off events. For 85076/85076 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 61388 event pairs, 1172 based on Foata normal form. 710/12114 useless extension candidates. Maximal degree in co-relation 38356. Up to 2450 conditions per place. [2024-11-20 22:05:44,924 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 398 selfloop transitions, 163 changer transitions 16/580 dead transitions. [2024-11-20 22:05:44,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 580 transitions, 4925 flow [2024-11-20 22:05:44,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-20 22:05:44,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-20 22:05:44,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 684 transitions. [2024-11-20 22:05:44,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40714285714285714 [2024-11-20 22:05:44,927 INFO L175 Difference]: Start difference. First operand has 81 places, 96 transitions, 966 flow. Second operand 40 states and 684 transitions. [2024-11-20 22:05:44,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 580 transitions, 4925 flow [2024-11-20 22:05:44,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 580 transitions, 4924 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:05:44,995 INFO L231 Difference]: Finished difference. Result has 142 places, 208 transitions, 2919 flow [2024-11-20 22:05:44,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=965, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=2919, PETRI_PLACES=142, PETRI_TRANSITIONS=208} [2024-11-20 22:05:44,996 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 102 predicate places. [2024-11-20 22:05:44,996 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 208 transitions, 2919 flow [2024-11-20 22:05:44,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:05:44,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:05:44,997 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:45,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 22:05:45,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-20 22:05:45,198 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 22:05:45,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:05:45,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1714498811, now seen corresponding path program 3 times [2024-11-20 22:05:45,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:05:45,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531588014] [2024-11-20 22:05:45,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:05:45,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:05:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:05:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:05:45,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:05:45,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531588014] [2024-11-20 22:05:45,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531588014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:05:45,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439969594] [2024-11-20 22:05:45,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 22:05:45,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:05:45,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:05:45,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:05:45,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 22:05:45,787 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 22:05:45,788 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:05:45,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 22:05:45,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:05:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-20 22:05:45,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:05:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-20 22:05:45,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439969594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:05:45,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:05:45,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 2, 2] total 21 [2024-11-20 22:05:45,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065834213] [2024-11-20 22:05:45,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:05:45,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 22:05:45,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:05:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 22:05:45,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2024-11-20 22:05:45,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-20 22:05:45,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 208 transitions, 2919 flow. Second operand has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 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) [2024-11-20 22:05:45,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:05:45,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-20 22:05:45,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:05:48,132 INFO L124 PetriNetUnfolderBase]: 7656/12898 cut-off events. [2024-11-20 22:05:48,132 INFO L125 PetriNetUnfolderBase]: For 103182/103182 co-relation queries the response was YES. [2024-11-20 22:05:48,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45347 conditions, 12898 events. 7656/12898 cut-off events. For 103182/103182 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 63647 event pairs, 1554 based on Foata normal form. 140/12012 useless extension candidates. Maximal degree in co-relation 45288. Up to 2550 conditions per place. [2024-11-20 22:05:48,176 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 0 selfloop transitions, 0 changer transitions 461/461 dead transitions. [2024-11-20 22:05:48,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 461 transitions, 5634 flow [2024-11-20 22:05:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 22:05:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-20 22:05:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 380 transitions. [2024-11-20 22:05:48,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41125541125541126 [2024-11-20 22:05:48,180 INFO L175 Difference]: Start difference. First operand has 142 places, 208 transitions, 2919 flow. Second operand 22 states and 380 transitions. [2024-11-20 22:05:48,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 461 transitions, 5634 flow [2024-11-20 22:05:48,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 461 transitions, 4891 flow, removed 177 selfloop flow, removed 29 redundant places. [2024-11-20 22:05:48,689 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2024-11-20 22:05:48,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2024-11-20 22:05:48,690 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 93 predicate places. [2024-11-20 22:05:48,690 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2024-11-20 22:05:48,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 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) [2024-11-20 22:05:48,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2024-11-20 22:05:48,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2024-11-20 22:05:48,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-11-20 22:05:48,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-11-20 22:05:48,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-11-20 22:05:48,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-11-20 22:05:48,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-11-20 22:05:48,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-11-20 22:05:48,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-11-20 22:05:48,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-11-20 22:05:48,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-11-20 22:05:48,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-11-20 22:05:48,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-11-20 22:05:48,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-11-20 22:05:48,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-11-20 22:05:48,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2024-11-20 22:05:48,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-11-20 22:05:48,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-11-20 22:05:48,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-20 22:05:48,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-20 22:05:48,898 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:05:48,905 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 22:05:48,905 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 22:05:48,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:05:48 BasicIcfg [2024-11-20 22:05:48,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 22:05:48,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:05:48,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:05:48,910 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:05:48,910 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:05:33" (3/4) ... [2024-11-20 22:05:48,911 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 22:05:48,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 22:05:48,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 22:05:48,917 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-20 22:05:48,918 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-20 22:05:48,918 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-20 22:05:48,918 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 22:05:48,988 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:05:48,988 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 22:05:48,988 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:05:48,988 INFO L158 Benchmark]: Toolchain (without parser) took 16037.69ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 95.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 366.6MB. Max. memory is 16.1GB. [2024-11-20 22:05:48,989 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 167.8MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:05:48,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.32ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 136.9MB in the end (delta: -41.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-11-20 22:05:48,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.93ms. Allocated memory is still 167.8MB. Free memory was 136.9MB in the beginning and 137.7MB in the end (delta: -807.8kB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-11-20 22:05:48,989 INFO L158 Benchmark]: Boogie Preprocessor took 41.94ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 135.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:05:48,989 INFO L158 Benchmark]: RCFGBuilder took 613.19ms. Allocated memory is still 167.8MB. Free memory was 135.6MB in the beginning and 83.2MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-20 22:05:48,989 INFO L158 Benchmark]: TraceAbstraction took 15006.47ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 83.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 634.7MB. Max. memory is 16.1GB. [2024-11-20 22:05:48,990 INFO L158 Benchmark]: Witness Printer took 78.53ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:05:48,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 167.8MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.32ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 136.9MB in the end (delta: -41.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.93ms. Allocated memory is still 167.8MB. Free memory was 136.9MB in the beginning and 137.7MB in the end (delta: -807.8kB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.94ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 135.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 613.19ms. Allocated memory is still 167.8MB. Free memory was 135.6MB in the beginning and 83.2MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15006.47ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 83.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 634.7MB. Max. memory is 16.1GB. * Witness Printer took 78.53ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 64 locations, 28 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.9s, OverallIterations: 15, TraceHistogramMax: 19, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1626 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1616 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1770 IncrementalHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 1 mSDtfsCounter, 1770 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 500 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2919occurred in iteration=14, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 505 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 2889 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 32 InterpolantComputations, 8 PerfectInterpolantSequences, 1112/2219 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 22:05:49,005 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