./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 a046e57d 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-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:52:56,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:52:56,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:52:56,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:52:56,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:52:56,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:52:56,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:52:56,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:52:56,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:52:56,817 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:52:56,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:52:56,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:52:56,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:52:56,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:52:56,822 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:52:56,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:52:56,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:52:56,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:52:56,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:52:56,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:52:56,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:52:56,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:52:56,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:52:56,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:52:56,827 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:52:56,827 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:52:56,827 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:52:56,828 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:52:56,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:52:56,828 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:52:56,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:52:56,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:52:56,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:52:56,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:52:56,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:52:56,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:52:56,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:52:56,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:52:56,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:52:56,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:52:56,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:52:56,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:52:56,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:52:56,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:52:56,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2024-10-13 16:52:57,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:52:57,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:52:57,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:52:57,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:52:57,105 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:52:57,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2024-10-13 16:52:58,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:52:58,696 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:52:58,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2024-10-13 16:52:58,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef562b0eb/cfc6f036c2a349ee827e82f5d5c83e4b/FLAGc523fcec7 [2024-10-13 16:52:59,080 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef562b0eb/cfc6f036c2a349ee827e82f5d5c83e4b [2024-10-13 16:52:59,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:52:59,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:52:59,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:52:59,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:52:59,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:52:59,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408ed4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59, skipping insertion in model container [2024-10-13 16:52:59,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:52:59,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:52:59,323 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:52:59,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:52:59,360 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:52:59,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59 WrapperNode [2024-10-13 16:52:59,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:52:59,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:52:59,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:52:59,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:52:59,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,400 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 147 [2024-10-13 16:52:59,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:52:59,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:52:59,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:52:59,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:52:59,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,443 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]. [2024-10-13 16:52:59,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:52:59,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:52:59,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:52:59,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:52:59,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (1/1) ... [2024-10-13 16:52:59,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:52:59,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:52:59,512 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) [2024-10-13 16:52:59,515 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 [2024-10-13 16:52:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:52:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 16:52:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 16:52:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 16:52:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 16:52:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:52:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:52:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:52:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 16:52:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 16:52:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 16:52:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 16:52:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:52:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:52:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:52:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 16:52:59,590 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:52:59,694 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:52:59,696 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:53:00,020 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:53:00,021 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:53:00,311 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:53:00,311 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-13 16:53:00,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:53:00 BoogieIcfgContainer [2024-10-13 16:53:00,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:53:00,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:53:00,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:53:00,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:53:00,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:52:59" (1/3) ... [2024-10-13 16:53:00,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f496964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:53:00, skipping insertion in model container [2024-10-13 16:53:00,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:52:59" (2/3) ... [2024-10-13 16:53:00,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f496964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:53:00, skipping insertion in model container [2024-10-13 16:53:00,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:53:00" (3/3) ... [2024-10-13 16:53:00,322 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2024-10-13 16:53:00,340 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:53:00,341 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-13 16:53:00,341 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:53:00,411 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 16:53:00,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2024-10-13 16:53:00,483 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2024-10-13 16:53:00,484 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 16:53:00,487 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. [2024-10-13 16:53:00,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2024-10-13 16:53:00,492 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2024-10-13 16:53:00,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:53:00,516 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;@5716f99c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:53:00,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-13 16:53:00,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:53:00,523 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-13 16:53:00,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:53:00,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:00,524 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 16:53:00,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:00,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash 505329, now seen corresponding path program 1 times [2024-10-13 16:53:00,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:00,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453839651] [2024-10-13 16:53:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:00,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:00,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453839651] [2024-10-13 16:53:00,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453839651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:00,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:53:00,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:53:00,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36441569] [2024-10-13 16:53:00,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:00,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:53:00,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:00,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:53:00,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:53:00,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-10-13 16:53:00,892 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) [2024-10-13 16:53:00,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:00,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-10-13 16:53:00,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:01,183 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2024-10-13 16:53:01,184 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-13 16:53:01,186 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. [2024-10-13 16:53:01,192 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2024-10-13 16:53:01,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2024-10-13 16:53:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:53:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:53:01,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-10-13 16:53:01,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-10-13 16:53:01,209 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2024-10-13 16:53:01,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2024-10-13 16:53:01,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:53:01,214 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2024-10-13 16:53:01,216 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} [2024-10-13 16:53:01,221 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-10-13 16:53:01,222 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2024-10-13 16:53:01,222 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) [2024-10-13 16:53:01,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:01,222 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-13 16:53:01,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:53:01,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:01,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:01,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2125143173, now seen corresponding path program 1 times [2024-10-13 16:53:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997586536] [2024-10-13 16:53:01,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:01,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:01,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:01,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997586536] [2024-10-13 16:53:01,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997586536] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:01,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347214081] [2024-10-13 16:53:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:01,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:01,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:01,362 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) [2024-10-13 16:53:01,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 16:53:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:01,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:53:01,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:01,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:53:01,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347214081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:01,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:53:01,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 16:53:01,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21341414] [2024-10-13 16:53:01,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:01,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:53:01,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:53:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:53:01,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-10-13 16:53:01,508 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) [2024-10-13 16:53:01,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:01,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-10-13 16:53:01,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:01,706 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2024-10-13 16:53:01,706 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 16:53:01,710 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. [2024-10-13 16:53:01,712 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2024-10-13 16:53:01,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2024-10-13 16:53:01,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:53:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:53:01,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-10-13 16:53:01,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-10-13 16:53:01,716 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2024-10-13 16:53:01,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2024-10-13 16:53:01,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:53:01,718 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2024-10-13 16:53:01,719 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} [2024-10-13 16:53:01,721 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-10-13 16:53:01,721 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2024-10-13 16:53:01,721 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) [2024-10-13 16:53:01,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:01,722 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:01,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 16:53:01,926 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 [2024-10-13 16:53:01,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:01,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:01,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648030, now seen corresponding path program 1 times [2024-10-13 16:53:01,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:01,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373977108] [2024-10-13 16:53:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:01,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:02,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:02,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373977108] [2024-10-13 16:53:02,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373977108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:02,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:53:02,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:53:02,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433057557] [2024-10-13 16:53:02,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:02,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:53:02,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:02,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:53:02,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:53:02,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:02,034 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) [2024-10-13 16:53:02,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:02,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:02,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:02,160 INFO L124 PetriNetUnfolderBase]: 339/597 cut-off events. [2024-10-13 16:53:02,160 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-13 16:53:02,161 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. [2024-10-13 16:53:02,163 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 37 selfloop transitions, 2 changer transitions 3/46 dead transitions. [2024-10-13 16:53:02,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 215 flow [2024-10-13 16:53:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:53:02,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:53:02,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-10-13 16:53:02,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-10-13 16:53:02,165 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2024-10-13 16:53:02,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 215 flow [2024-10-13 16:53:02,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 193 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-13 16:53:02,167 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 100 flow [2024-10-13 16:53:02,167 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} [2024-10-13 16:53:02,168 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2024-10-13 16:53:02,168 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 100 flow [2024-10-13 16:53:02,168 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) [2024-10-13 16:53:02,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:02,169 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-13 16:53:02,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:53:02,169 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:02,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:02,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1454928451, now seen corresponding path program 1 times [2024-10-13 16:53:02,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:02,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082896448] [2024-10-13 16:53:02,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:02,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:02,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:02,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082896448] [2024-10-13 16:53:02,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082896448] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:02,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157830747] [2024-10-13 16:53:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:02,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:02,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:02,254 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) [2024-10-13 16:53:02,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 16:53:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:02,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:53:02,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:02,349 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:53:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:02,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157830747] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:53:02,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:53:02,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-13 16:53:02,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476464357] [2024-10-13 16:53:02,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:53:02,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 16:53:02,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:02,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 16:53:02,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 16:53:02,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-10-13 16:53:02,410 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) [2024-10-13 16:53:02,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:02,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-10-13 16:53:02,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:02,593 INFO L124 PetriNetUnfolderBase]: 342/609 cut-off events. [2024-10-13 16:53:02,593 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 16:53:02,594 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. [2024-10-13 16:53:02,597 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2024-10-13 16:53:02,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 208 flow [2024-10-13 16:53:02,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:53:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 16:53:02,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2024-10-13 16:53:02,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2024-10-13 16:53:02,600 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 100 flow. Second operand 10 states and 91 transitions. [2024-10-13 16:53:02,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 208 flow [2024-10-13 16:53:02,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:53:02,602 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 172 flow [2024-10-13 16:53:02,602 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} [2024-10-13 16:53:02,603 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-10-13 16:53:02,603 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 172 flow [2024-10-13 16:53:02,604 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) [2024-10-13 16:53:02,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:02,604 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:02,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 16:53:02,808 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 [2024-10-13 16:53:02,809 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:02,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648029, now seen corresponding path program 1 times [2024-10-13 16:53:02,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:02,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416317036] [2024-10-13 16:53:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:02,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416317036] [2024-10-13 16:53:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416317036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:02,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:53:02,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:53:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422634900] [2024-10-13 16:53:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:02,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:53:02,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:02,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:53:02,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:53:02,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:02,885 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) [2024-10-13 16:53:02,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:02,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:02,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:02,978 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2024-10-13 16:53:02,978 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-13 16:53:02,979 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. [2024-10-13 16:53:02,981 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 45 selfloop transitions, 2 changer transitions 3/54 dead transitions. [2024-10-13 16:53:02,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 299 flow [2024-10-13 16:53:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:53:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:53:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-10-13 16:53:02,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-10-13 16:53:02,983 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 172 flow. Second operand 3 states and 60 transitions. [2024-10-13 16:53:02,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 299 flow [2024-10-13 16:53:02,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 288 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-13 16:53:02,986 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 169 flow [2024-10-13 16:53:02,986 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} [2024-10-13 16:53:02,987 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-10-13 16:53:02,987 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 169 flow [2024-10-13 16:53:02,987 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) [2024-10-13 16:53:02,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:02,987 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:02,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 16:53:02,988 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:02,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:02,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375046, now seen corresponding path program 1 times [2024-10-13 16:53:02,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:02,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137439614] [2024-10-13 16:53:02,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:02,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:03,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:03,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137439614] [2024-10-13 16:53:03,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137439614] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194775018] [2024-10-13 16:53:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:03,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:03,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:03,068 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) [2024-10-13 16:53:03,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 16:53:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:03,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:53:03,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:03,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:53:03,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194775018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:03,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:53:03,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-10-13 16:53:03,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650061224] [2024-10-13 16:53:03,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:03,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:53:03,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:03,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:53:03,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:53:03,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:03,206 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) [2024-10-13 16:53:03,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:03,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:03,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:03,330 INFO L124 PetriNetUnfolderBase]: 415/709 cut-off events. [2024-10-13 16:53:03,330 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-10-13 16:53:03,332 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. [2024-10-13 16:53:03,335 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 47 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2024-10-13 16:53:03,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 320 flow [2024-10-13 16:53:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:53:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:53:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-10-13 16:53:03,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-10-13 16:53:03,336 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 169 flow. Second operand 4 states and 73 transitions. [2024-10-13 16:53:03,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 320 flow [2024-10-13 16:53:03,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:53:03,339 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 214 flow [2024-10-13 16:53:03,339 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} [2024-10-13 16:53:03,340 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2024-10-13 16:53:03,340 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 214 flow [2024-10-13 16:53:03,340 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) [2024-10-13 16:53:03,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:03,341 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:03,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 16:53:03,541 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 [2024-10-13 16:53:03,542 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:03,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:03,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375039, now seen corresponding path program 1 times [2024-10-13 16:53:03,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:03,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016365987] [2024-10-13 16:53:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:03,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:03,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:03,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016365987] [2024-10-13 16:53:03,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016365987] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:03,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069249657] [2024-10-13 16:53:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:03,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:03,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:03,612 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) [2024-10-13 16:53:03,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 16:53:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:03,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:53:03,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:03,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:53:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:03,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069249657] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:53:03,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:53:03,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-10-13 16:53:03,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425228850] [2024-10-13 16:53:03,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:53:03,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:53:03,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:03,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:53:03,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:53:03,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:03,749 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) [2024-10-13 16:53:03,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:03,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:03,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:04,067 INFO L124 PetriNetUnfolderBase]: 1040/1773 cut-off events. [2024-10-13 16:53:04,067 INFO L125 PetriNetUnfolderBase]: For 931/931 co-relation queries the response was YES. [2024-10-13 16:53:04,071 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. [2024-10-13 16:53:04,080 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 94 selfloop transitions, 9 changer transitions 3/110 dead transitions. [2024-10-13 16:53:04,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 110 transitions, 640 flow [2024-10-13 16:53:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:53:04,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:53:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-10-13 16:53:04,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5436507936507936 [2024-10-13 16:53:04,085 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 214 flow. Second operand 6 states and 137 transitions. [2024-10-13 16:53:04,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 110 transitions, 640 flow [2024-10-13 16:53:04,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 110 transitions, 611 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-10-13 16:53:04,091 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 309 flow [2024-10-13 16:53:04,094 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} [2024-10-13 16:53:04,095 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2024-10-13 16:53:04,095 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 309 flow [2024-10-13 16:53:04,095 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) [2024-10-13 16:53:04,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:04,096 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:04,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 16:53:04,296 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 [2024-10-13 16:53:04,296 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:04,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375045, now seen corresponding path program 1 times [2024-10-13 16:53:04,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:04,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369761229] [2024-10-13 16:53:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:04,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:04,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:04,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369761229] [2024-10-13 16:53:04,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369761229] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:04,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139543242] [2024-10-13 16:53:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:04,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:04,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:04,352 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) [2024-10-13 16:53:04,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 16:53:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:04,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:53:04,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:04,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:53:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:04,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139543242] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:53:04,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:53:04,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-10-13 16:53:04,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209928413] [2024-10-13 16:53:04,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:53:04,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:53:04,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:04,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:53:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:53:04,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:04,486 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) [2024-10-13 16:53:04,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:04,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:04,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:04,898 INFO L124 PetriNetUnfolderBase]: 1824/3102 cut-off events. [2024-10-13 16:53:04,899 INFO L125 PetriNetUnfolderBase]: For 4067/4067 co-relation queries the response was YES. [2024-10-13 16:53:04,905 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. [2024-10-13 16:53:04,916 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 18 changer transitions 18/139 dead transitions. [2024-10-13 16:53:04,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 139 transitions, 923 flow [2024-10-13 16:53:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 16:53:04,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 16:53:04,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-10-13 16:53:04,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-10-13 16:53:04,918 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 309 flow. Second operand 8 states and 170 transitions. [2024-10-13 16:53:04,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 139 transitions, 923 flow [2024-10-13 16:53:04,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 139 transitions, 923 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:53:04,929 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 576 flow [2024-10-13 16:53:04,929 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} [2024-10-13 16:53:04,930 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 31 predicate places. [2024-10-13 16:53:04,930 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 576 flow [2024-10-13 16:53:04,930 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) [2024-10-13 16:53:04,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:04,930 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-13 16:53:04,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 16:53:05,134 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 [2024-10-13 16:53:05,135 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:05,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash 736662151, now seen corresponding path program 2 times [2024-10-13 16:53:05,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:05,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326151527] [2024-10-13 16:53:05,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:05,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:05,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:05,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326151527] [2024-10-13 16:53:05,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326151527] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:05,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995022644] [2024-10-13 16:53:05,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:53:05,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:05,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:05,317 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) [2024-10-13 16:53:05,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 16:53:05,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 16:53:05,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:53:05,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:53:05,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 16:53:05,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:53:05,447 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 16:53:05,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995022644] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:53:05,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:53:05,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-10-13 16:53:05,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071665564] [2024-10-13 16:53:05,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:53:05,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 16:53:05,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:05,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 16:53:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-13 16:53:05,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-10-13 16:53:05,467 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) [2024-10-13 16:53:05,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:05,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-10-13 16:53:05,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:05,983 INFO L124 PetriNetUnfolderBase]: 1825/3105 cut-off events. [2024-10-13 16:53:05,984 INFO L125 PetriNetUnfolderBase]: For 7926/7926 co-relation queries the response was YES. [2024-10-13 16:53:05,991 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. [2024-10-13 16:53:06,002 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 47 selfloop transitions, 19 changer transitions 0/69 dead transitions. [2024-10-13 16:53:06,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 69 transitions, 714 flow [2024-10-13 16:53:06,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 16:53:06,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-13 16:53:06,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 110 transitions. [2024-10-13 16:53:06,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1870748299319728 [2024-10-13 16:53:06,005 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 576 flow. Second operand 14 states and 110 transitions. [2024-10-13 16:53:06,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 69 transitions, 714 flow [2024-10-13 16:53:06,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 692 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-13 16:53:06,021 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 598 flow [2024-10-13 16:53:06,022 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} [2024-10-13 16:53:06,023 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 38 predicate places. [2024-10-13 16:53:06,024 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 598 flow [2024-10-13 16:53:06,024 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) [2024-10-13 16:53:06,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:06,024 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2024-10-13 16:53:06,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 16:53:06,225 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 [2024-10-13 16:53:06,225 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:06,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:06,226 INFO L85 PathProgramCache]: Analyzing trace with hash 504756521, now seen corresponding path program 2 times [2024-10-13 16:53:06,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:06,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114428683] [2024-10-13 16:53:06,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:06,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:53:06,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:06,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114428683] [2024-10-13 16:53:06,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114428683] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:06,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321559772] [2024-10-13 16:53:06,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:53:06,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:06,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:06,331 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) [2024-10-13 16:53:06,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 16:53:06,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 16:53:06,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:53:06,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 16:53:06,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-13 16:53:06,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:53:06,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321559772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:06,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:53:06,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2024-10-13 16:53:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963239861] [2024-10-13 16:53:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:06,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:53:06,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:06,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:53:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:53:06,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:06,480 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) [2024-10-13 16:53:06,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:06,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:06,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:06,858 INFO L124 PetriNetUnfolderBase]: 1668/2868 cut-off events. [2024-10-13 16:53:06,858 INFO L125 PetriNetUnfolderBase]: For 7564/7564 co-relation queries the response was YES. [2024-10-13 16:53:06,866 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. [2024-10-13 16:53:06,875 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 59 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2024-10-13 16:53:06,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 634 flow [2024-10-13 16:53:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:53:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:53:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-10-13 16:53:06,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492063492063492 [2024-10-13 16:53:06,877 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 598 flow. Second operand 3 states and 44 transitions. [2024-10-13 16:53:06,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 634 flow [2024-10-13 16:53:06,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 547 flow, removed 11 selfloop flow, removed 13 redundant places. [2024-10-13 16:53:06,895 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 429 flow [2024-10-13 16:53:06,896 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} [2024-10-13 16:53:06,896 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2024-10-13 16:53:06,896 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 429 flow [2024-10-13 16:53:06,897 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) [2024-10-13 16:53:06,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:06,897 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:06,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 16:53:07,097 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 [2024-10-13 16:53:07,098 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:07,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:07,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1905796755, now seen corresponding path program 1 times [2024-10-13 16:53:07,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:07,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115661009] [2024-10-13 16:53:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:07,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-13 16:53:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:07,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115661009] [2024-10-13 16:53:07,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115661009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:07,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:53:07,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:53:07,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494385503] [2024-10-13 16:53:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:07,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:53:07,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:07,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:53:07,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:53:07,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:07,252 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) [2024-10-13 16:53:07,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:07,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:07,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:07,572 INFO L124 PetriNetUnfolderBase]: 1735/3004 cut-off events. [2024-10-13 16:53:07,573 INFO L125 PetriNetUnfolderBase]: For 5626/5626 co-relation queries the response was YES. [2024-10-13 16:53:07,581 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. [2024-10-13 16:53:07,597 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 57 selfloop transitions, 2 changer transitions 14/76 dead transitions. [2024-10-13 16:53:07,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 76 transitions, 605 flow [2024-10-13 16:53:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:53:07,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:53:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-10-13 16:53:07,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-10-13 16:53:07,599 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 429 flow. Second operand 4 states and 66 transitions. [2024-10-13 16:53:07,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 76 transitions, 605 flow [2024-10-13 16:53:07,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:53:07,611 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 432 flow [2024-10-13 16:53:07,611 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} [2024-10-13 16:53:07,612 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 28 predicate places. [2024-10-13 16:53:07,612 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 432 flow [2024-10-13 16:53:07,612 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) [2024-10-13 16:53:07,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:07,613 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:07,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 16:53:07,613 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:07,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash 454518985, now seen corresponding path program 1 times [2024-10-13 16:53:07,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:07,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808538156] [2024-10-13 16:53:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:07,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:53:07,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:07,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808538156] [2024-10-13 16:53:07,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808538156] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:07,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572230416] [2024-10-13 16:53:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:07,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:07,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:07,758 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) [2024-10-13 16:53:07,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 16:53:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:07,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 16:53:07,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:53:07,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:53:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:53:08,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572230416] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:53:08,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:53:08,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 13 [2024-10-13 16:53:08,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859385682] [2024-10-13 16:53:08,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:53:08,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 16:53:08,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:08,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 16:53:08,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=109, Unknown=0, NotChecked=0, Total=210 [2024-10-13 16:53:08,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:08,028 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) [2024-10-13 16:53:08,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:08,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:08,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:09,066 INFO L124 PetriNetUnfolderBase]: 4852/8292 cut-off events. [2024-10-13 16:53:09,067 INFO L125 PetriNetUnfolderBase]: For 19440/19440 co-relation queries the response was YES. [2024-10-13 16:53:09,088 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. [2024-10-13 16:53:09,111 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 165 selfloop transitions, 51 changer transitions 42/261 dead transitions. [2024-10-13 16:53:09,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 261 transitions, 1925 flow [2024-10-13 16:53:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 16:53:09,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-13 16:53:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 287 transitions. [2024-10-13 16:53:09,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-10-13 16:53:09,113 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 432 flow. Second operand 14 states and 287 transitions. [2024-10-13 16:53:09,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 261 transitions, 1925 flow [2024-10-13 16:53:09,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 261 transitions, 1919 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-13 16:53:09,146 INFO L231 Difference]: Finished difference. Result has 84 places, 101 transitions, 1068 flow [2024-10-13 16:53:09,147 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} [2024-10-13 16:53:09,147 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 44 predicate places. [2024-10-13 16:53:09,149 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 101 transitions, 1068 flow [2024-10-13 16:53:09,149 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) [2024-10-13 16:53:09,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:09,149 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:09,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 16:53:09,350 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 [2024-10-13 16:53:09,351 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:09,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash -7735982, now seen corresponding path program 1 times [2024-10-13 16:53:09,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:09,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976271647] [2024-10-13 16:53:09,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:09,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-10-13 16:53:09,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:09,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976271647] [2024-10-13 16:53:09,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976271647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:53:09,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:53:09,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:53:09,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183433548] [2024-10-13 16:53:09,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:53:09,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:53:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:09,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:53:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:53:09,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:09,465 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) [2024-10-13 16:53:09,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:09,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:09,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:10,362 INFO L124 PetriNetUnfolderBase]: 4820/8247 cut-off events. [2024-10-13 16:53:10,362 INFO L125 PetriNetUnfolderBase]: For 22586/22586 co-relation queries the response was YES. [2024-10-13 16:53:10,462 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. [2024-10-13 16:53:10,496 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 92 selfloop transitions, 1 changer transitions 3/99 dead transitions. [2024-10-13 16:53:10,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 99 transitions, 1218 flow [2024-10-13 16:53:10,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:53:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:53:10,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-10-13 16:53:10,497 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-10-13 16:53:10,497 INFO L175 Difference]: Start difference. First operand has 84 places, 101 transitions, 1068 flow. Second operand 3 states and 42 transitions. [2024-10-13 16:53:10,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 99 transitions, 1218 flow [2024-10-13 16:53:10,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 99 transitions, 1163 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-10-13 16:53:10,544 INFO L231 Difference]: Finished difference. Result has 81 places, 96 transitions, 966 flow [2024-10-13 16:53:10,545 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} [2024-10-13 16:53:10,545 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 41 predicate places. [2024-10-13 16:53:10,545 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 96 transitions, 966 flow [2024-10-13 16:53:10,546 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) [2024-10-13 16:53:10,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:10,546 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:10,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 16:53:10,546 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:10,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash -267872235, now seen corresponding path program 2 times [2024-10-13 16:53:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:10,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647110364] [2024-10-13 16:53:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:10,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:53:10,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:10,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647110364] [2024-10-13 16:53:10,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647110364] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:10,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61678114] [2024-10-13 16:53:10,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:53:10,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:10,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:10,764 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) [2024-10-13 16:53:10,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 16:53:10,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 16:53:10,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:53:10,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 16:53:10,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:53:11,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:53:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:53:11,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61678114] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:53:11,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:53:11,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 28 [2024-10-13 16:53:11,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462201505] [2024-10-13 16:53:11,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:53:11,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-13 16:53:11,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:11,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-13 16:53:11,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=470, Unknown=0, NotChecked=0, Total=870 [2024-10-13 16:53:11,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:11,302 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) [2024-10-13 16:53:11,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:11,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:11,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:13,342 INFO L124 PetriNetUnfolderBase]: 7354/12390 cut-off events. [2024-10-13 16:53:13,343 INFO L125 PetriNetUnfolderBase]: For 85076/85076 co-relation queries the response was YES. [2024-10-13 16:53:13,387 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. [2024-10-13 16:53:13,433 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 398 selfloop transitions, 163 changer transitions 16/580 dead transitions. [2024-10-13 16:53:13,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 580 transitions, 4925 flow [2024-10-13 16:53:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-13 16:53:13,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-10-13 16:53:13,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 684 transitions. [2024-10-13 16:53:13,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40714285714285714 [2024-10-13 16:53:13,437 INFO L175 Difference]: Start difference. First operand has 81 places, 96 transitions, 966 flow. Second operand 40 states and 684 transitions. [2024-10-13 16:53:13,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 580 transitions, 4925 flow [2024-10-13 16:53:13,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 580 transitions, 4924 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:53:13,539 INFO L231 Difference]: Finished difference. Result has 142 places, 208 transitions, 2919 flow [2024-10-13 16:53:13,541 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} [2024-10-13 16:53:13,542 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 102 predicate places. [2024-10-13 16:53:13,542 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 208 transitions, 2919 flow [2024-10-13 16:53:13,542 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) [2024-10-13 16:53:13,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:53:13,543 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:13,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 16:53:13,747 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 [2024-10-13 16:53:13,748 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:53:13,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:53:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1714498811, now seen corresponding path program 3 times [2024-10-13 16:53:13,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:53:13,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241038499] [2024-10-13 16:53:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:53:13,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:53:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:53:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:53:14,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:53:14,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241038499] [2024-10-13 16:53:14,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241038499] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:53:14,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809746784] [2024-10-13 16:53:14,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 16:53:14,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:53:14,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:53:14,545 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) [2024-10-13 16:53:14,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 16:53:14,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 16:53:14,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:53:14,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:53:14,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:53:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-10-13 16:53:14,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:53:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-10-13 16:53:14,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809746784] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:53:14,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:53:14,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 2, 2] total 21 [2024-10-13 16:53:14,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946621971] [2024-10-13 16:53:14,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:53:14,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 16:53:14,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:53:14,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 16:53:14,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2024-10-13 16:53:14,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-10-13 16:53:14,864 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) [2024-10-13 16:53:14,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:53:14,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-10-13 16:53:14,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:53:17,380 INFO L124 PetriNetUnfolderBase]: 7656/12898 cut-off events. [2024-10-13 16:53:17,380 INFO L125 PetriNetUnfolderBase]: For 103182/103182 co-relation queries the response was YES. [2024-10-13 16:53:17,454 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. [2024-10-13 16:53:17,465 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 0 selfloop transitions, 0 changer transitions 461/461 dead transitions. [2024-10-13 16:53:17,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 461 transitions, 5634 flow [2024-10-13 16:53:17,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 16:53:17,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-13 16:53:17,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 380 transitions. [2024-10-13 16:53:17,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41125541125541126 [2024-10-13 16:53:17,467 INFO L175 Difference]: Start difference. First operand has 142 places, 208 transitions, 2919 flow. Second operand 22 states and 380 transitions. [2024-10-13 16:53:17,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 461 transitions, 5634 flow [2024-10-13 16:53:18,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 461 transitions, 4891 flow, removed 177 selfloop flow, removed 29 redundant places. [2024-10-13 16:53:18,092 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2024-10-13 16:53:18,093 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} [2024-10-13 16:53:18,093 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 93 predicate places. [2024-10-13 16:53:18,093 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2024-10-13 16:53:18,093 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) [2024-10-13 16:53:18,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2024-10-13 16:53:18,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2024-10-13 16:53:18,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-10-13 16:53:18,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-10-13 16:53:18,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-10-13 16:53:18,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-10-13 16:53:18,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-10-13 16:53:18,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-10-13 16:53:18,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-10-13 16:53:18,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-10-13 16:53:18,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-10-13 16:53:18,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2024-10-13 16:53:18,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2024-10-13 16:53:18,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-10-13 16:53:18,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-10-13 16:53:18,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2024-10-13 16:53:18,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-10-13 16:53:18,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-10-13 16:53:18,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2024-10-13 16:53:18,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-10-13 16:53:18,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-10-13 16:53:18,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 16:53:18,301 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 [2024-10-13 16:53:18,301 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:53:18,307 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 16:53:18,307 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 16:53:18,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:53:18 BasicIcfg [2024-10-13 16:53:18,311 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 16:53:18,312 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:53:18,312 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:53:18,312 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:53:18,313 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:53:00" (3/4) ... [2024-10-13 16:53:18,314 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 16:53:18,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 16:53:18,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 16:53:18,320 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-10-13 16:53:18,321 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-10-13 16:53:18,321 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-13 16:53:18,321 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 16:53:18,408 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:53:18,409 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 16:53:18,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:53:18,409 INFO L158 Benchmark]: Toolchain (without parser) took 19325.83ms. Allocated memory was 138.4MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 68.9MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 366.4MB. Max. memory is 16.1GB. [2024-10-13 16:53:18,409 INFO L158 Benchmark]: CDTParser took 1.55ms. Allocated memory is still 138.4MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:53:18,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.61ms. Allocated memory is still 138.4MB. Free memory was 68.7MB in the beginning and 55.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 16:53:18,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.87ms. Allocated memory is still 138.4MB. Free memory was 55.6MB in the beginning and 53.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:53:18,410 INFO L158 Benchmark]: Boogie Preprocessor took 54.87ms. Allocated memory is still 138.4MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:53:18,410 INFO L158 Benchmark]: RCFGBuilder took 854.42ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 51.2MB in the beginning and 123.4MB in the end (delta: -72.2MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-10-13 16:53:18,411 INFO L158 Benchmark]: TraceAbstraction took 17995.65ms. Allocated memory was 199.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 122.3MB in the beginning and 2.8GB in the end (delta: -2.6GB). Peak memory consumption was 935.0MB. Max. memory is 16.1GB. [2024-10-13 16:53:18,411 INFO L158 Benchmark]: Witness Printer took 96.71ms. Allocated memory is still 3.2GB. Free memory was 2.8GB in the beginning and 2.8GB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 16:53:18,413 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55ms. Allocated memory is still 138.4MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.61ms. Allocated memory is still 138.4MB. Free memory was 68.7MB in the beginning and 55.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.87ms. Allocated memory is still 138.4MB. Free memory was 55.6MB in the beginning and 53.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.87ms. Allocated memory is still 138.4MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 854.42ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 51.2MB in the beginning and 123.4MB in the end (delta: -72.2MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17995.65ms. Allocated memory was 199.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 122.3MB in the beginning and 2.8GB in the end (delta: -2.6GB). Peak memory consumption was 935.0MB. Max. memory is 16.1GB. * Witness Printer took 96.71ms. Allocated memory is still 3.2GB. Free memory was 2.8GB in the beginning and 2.8GB in the end (delta: 4.8MB). 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: 17.9s, OverallIterations: 15, TraceHistogramMax: 19, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1626 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1616 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.5s 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, 1.5s 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, 0.4s SatisfiabilityAnalysisTime, 3.5s 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! [2024-10-13 16:53:18,444 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