./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-complex/safestack_relacy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a849f68 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-complex/safestack_relacy.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 18:10:33,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 18:10:33,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2024-10-26 18:10:33,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 18:10:33,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 18:10:33,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 18:10:33,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 18:10:33,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 18:10:33,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 18:10:33,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 18:10:33,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 18:10:33,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 18:10:33,953 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 18:10:33,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 18:10:33,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-26 18:10:33,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 18:10:33,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 18:10:33,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 18:10:33,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 18:10:33,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-26 18:10:33,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 18:10:33,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-26 18:10:33,959 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 18:10:33,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-26 18:10:33,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 18:10:33,960 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 18:10:33,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-26 18:10:33,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 18:10:33,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 18:10:33,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 18:10:33,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 18:10:33,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 18:10:33,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 18:10:33,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 18:10:33,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 18:10:33,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-26 18:10:33,962 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-26 18:10:33,962 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-26 18:10:33,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-26 18:10:33,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 18:10:33,963 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 18:10:33,963 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 18:10:33,963 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 18:10:33,963 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 18:10:33,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 [2024-10-26 18:10:34,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 18:10:34,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 18:10:34,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 18:10:34,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 18:10:34,317 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 18:10:34,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-10-26 18:10:35,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 18:10:36,088 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 18:10:36,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-10-26 18:10:36,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/64a7f1e75/f1966e282edb41d89cabc86072db009d/FLAG6c82bc611 [2024-10-26 18:10:36,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/64a7f1e75/f1966e282edb41d89cabc86072db009d [2024-10-26 18:10:36,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 18:10:36,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 18:10:36,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 18:10:36,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 18:10:36,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 18:10:36,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:10:36" (1/1) ... [2024-10-26 18:10:36,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54596d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:36, skipping insertion in model container [2024-10-26 18:10:36,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:10:36" (1/1) ... [2024-10-26 18:10:36,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 18:10:37,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 18:10:37,122 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 18:10:37,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 18:10:37,322 INFO L204 MainTranslator]: Completed translation [2024-10-26 18:10:37,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37 WrapperNode [2024-10-26 18:10:37,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 18:10:37,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 18:10:37,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 18:10:37,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 18:10:37,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,393 INFO L138 Inliner]: procedures = 481, calls = 75, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 304 [2024-10-26 18:10:37,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 18:10:37,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 18:10:37,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 18:10:37,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 18:10:37,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 18:10:37,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 18:10:37,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 18:10:37,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 18:10:37,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (1/1) ... [2024-10-26 18:10:37,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 18:10:37,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 18:10:37,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-26 18:10:37,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-26 18:10:37,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-26 18:10:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-26 18:10:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-26 18:10:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-26 18:10:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 18:10:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-26 18:10:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-26 18:10:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 18:10:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 18:10:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-26 18:10:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-26 18:10:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-26 18:10:37,585 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-26 18:10:37,890 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 18:10:37,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 18:10:38,327 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 18:10:38,327 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 18:10:38,592 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 18:10:38,592 INFO L314 CfgBuilder]: Removed 7 assume(true) statements. [2024-10-26 18:10:38,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:10:38 BoogieIcfgContainer [2024-10-26 18:10:38,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 18:10:38,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 18:10:38,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 18:10:38,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 18:10:38,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 06:10:36" (1/3) ... [2024-10-26 18:10:38,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73362158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:10:38, skipping insertion in model container [2024-10-26 18:10:38,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:10:37" (2/3) ... [2024-10-26 18:10:38,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73362158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:10:38, skipping insertion in model container [2024-10-26 18:10:38,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:10:38" (3/3) ... [2024-10-26 18:10:38,628 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2024-10-26 18:10:38,650 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 18:10:38,650 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-26 18:10:38,650 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 18:10:38,731 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-26 18:10:38,782 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 18:10:38,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 18:10:38,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 18:10:38,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-26 18:10:38,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-26 18:10:38,833 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 18:10:38,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2024-10-26 18:10:38,854 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=PARTIAL_ORDER_FA, 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;@2f54f498, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 18:10:38,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-26 18:10:39,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-26 18:10:39,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 18:10:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash -162354207, now seen corresponding path program 1 times [2024-10-26 18:10:39,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 18:10:39,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054769733] [2024-10-26 18:10:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:39,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 18:10:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 18:10:39,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 18:10:39,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054769733] [2024-10-26 18:10:39,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054769733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 18:10:39,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 18:10:39,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 18:10:39,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218579029] [2024-10-26 18:10:39,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 18:10:39,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-26 18:10:39,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 18:10:39,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-26 18:10:39,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-26 18:10:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:39,619 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 18:10:39,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-10-26 18:10:39,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:39,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-26 18:10:39,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-26 18:10:39,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 18:10:39,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1964319103, now seen corresponding path program 1 times [2024-10-26 18:10:39,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 18:10:39,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756435632] [2024-10-26 18:10:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:39,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 18:10:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 18:10:40,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 18:10:40,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756435632] [2024-10-26 18:10:40,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756435632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 18:10:40,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 18:10:40,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 18:10:40,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452768251] [2024-10-26 18:10:40,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 18:10:40,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 18:10:40,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 18:10:40,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 18:10:40,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-26 18:10:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,058 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 18:10:40,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-26 18:10:40,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 18:10:40,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-26 18:10:40,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-26 18:10:40,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 18:10:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1121431196, now seen corresponding path program 1 times [2024-10-26 18:10:40,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 18:10:40,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800603450] [2024-10-26 18:10:40,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:40,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 18:10:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:40,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-26 18:10:40,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 18:10:40,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800603450] [2024-10-26 18:10:40,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800603450] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 18:10:40,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 18:10:40,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 18:10:40,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232867157] [2024-10-26 18:10:40,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 18:10:40,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 18:10:40,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 18:10:40,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 18:10:40,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 18:10:40,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,306 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 18:10:40,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-10-26 18:10:40,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 18:10:40,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 18:10:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 18:10:40,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-26 18:10:40,441 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-26 18:10:40,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 18:10:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2049164449, now seen corresponding path program 1 times [2024-10-26 18:10:40,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 18:10:40,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719609555] [2024-10-26 18:10:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:40,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 18:10:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-26 18:10:40,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 18:10:40,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719609555] [2024-10-26 18:10:40,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719609555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 18:10:40,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 18:10:40,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-26 18:10:40,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039167583] [2024-10-26 18:10:40,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 18:10:40,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 18:10:40,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 18:10:40,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 18:10:40,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 18:10:40,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,578 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 18:10:40,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-10-26 18:10:40,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 18:10:40,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 18:10:40,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:40,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 18:10:40,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 18:10:40,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 18:10:40,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-26 18:10:40,814 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-26 18:10:40,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 18:10:40,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1684799517, now seen corresponding path program 1 times [2024-10-26 18:10:40,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 18:10:40,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539443323] [2024-10-26 18:10:40,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:40,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 18:10:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-26 18:10:41,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 18:10:41,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539443323] [2024-10-26 18:10:41,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539443323] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-26 18:10:41,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936563757] [2024-10-26 18:10:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:41,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 18:10:41,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 18:10:41,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-26 18:10:41,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-26 18:10:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:41,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-26 18:10:41,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 18:10:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-26 18:10:41,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 18:10:41,422 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-26 18:10:41,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936563757] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 18:10:41,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-26 18:10:41,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-10-26 18:10:41,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87181253] [2024-10-26 18:10:41,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-26 18:10:41,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-26 18:10:41,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-26 18:10:41,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-26 18:10:41,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-26 18:10:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:41,429 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 18:10:41,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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) [2024-10-26 18:10:41,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:41,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 18:10:41,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 18:10:41,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 18:10:41,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:41,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 18:10:41,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 18:10:41,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 18:10:41,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 18:10:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 18:10:41,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-26 18:10:42,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 18:10:42,066 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-26 18:10:42,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 18:10:42,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1256531191, now seen corresponding path program 1 times [2024-10-26 18:10:42,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 18:10:42,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82528032] [2024-10-26 18:10:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:42,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-26 18:10:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 18:10:44,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-26 18:10:44,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82528032] [2024-10-26 18:10:44,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82528032] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-26 18:10:44,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370538195] [2024-10-26 18:10:44,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 18:10:44,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-26 18:10:44,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 18:10:44,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-26 18:10:44,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-26 18:10:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 18:10:44,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-10-26 18:10:44,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 18:10:44,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-26 18:10:44,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-26 18:10:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-10-26 18:10:45,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-10-26 18:10:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-10-26 18:10:45,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-10-26 18:10:45,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 18:10:45,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-10-26 18:10:45,946 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-10-26 18:10:45,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 28 [2024-10-26 18:10:45,982 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-26 18:10:45,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-26 18:10:46,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 80 [2024-10-26 18:10:46,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2024-10-26 18:10:46,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-26 18:10:46,493 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 18:10:46,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 18:12:11,940 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-26 18:12:11,946 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-26 18:12:12,108 INFO L349 Elim1Store]: treesize reduction 172, result has 39.2 percent of original size [2024-10-26 18:12:12,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 233 treesize of output 201 [2024-10-26 18:12:12,142 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-10-26 18:12:12,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 256 treesize of output 234 [2024-10-26 18:12:12,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-26 18:12:12,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 245 treesize of output 244 [2024-10-26 18:12:12,217 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-26 18:12:12,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-26 18:12:12,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 313 treesize of output 317 [2024-10-26 18:12:12,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 76 [2024-10-26 18:12:12,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-10-26 18:12:32,248 INFO L173 IndexEqualityManager]: detected equality via solver Killed by 15