./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-theta/exponential-nondet.i --full-output --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2e5b835a 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 ../../../trunk/examples/svcomp/pthread-theta/exponential-nondet.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 f87ddde6d61a5d434f69c49dc65eaf95f54327ebb0ef5acca382e4d4744605ae --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.theta-eval-2e5b835-m [2024-10-21 19:52:57,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-21 19:52:57,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2024-10-21 19:52:57,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-21 19:52:57,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-21 19:52:57,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-21 19:52:57,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-21 19:52:57,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-21 19:52:57,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-21 19:52:57,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-21 19:52:57,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-21 19:52:57,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-21 19:52:57,581 INFO L153 SettingsManager]: * Use SBE=true [2024-10-21 19:52:57,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-21 19:52:57,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-21 19:52:57,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-21 19:52:57,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-21 19:52:57,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-21 19:52:57,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-21 19:52:57,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-21 19:52:57,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-21 19:52:57,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-21 19:52:57,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-21 19:52:57,588 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-21 19:52:57,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-21 19:52:57,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-21 19:52:57,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-21 19:52:57,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-21 19:52:57,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-21 19:52:57,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-21 19:52:57,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-21 19:52:57,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-21 19:52:57,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 19:52:57,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-21 19:52:57,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-21 19:52:57,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-21 19:52:57,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-21 19:52:57,590 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-21 19:52:57,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-21 19:52:57,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-21 19:52:57,590 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-21 19:52:57,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-21 19:52:57,591 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-21 19:52:57,592 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-21 19:52:57,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87ddde6d61a5d434f69c49dc65eaf95f54327ebb0ef5acca382e4d4744605ae Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2024-10-21 19:52:57,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-21 19:52:57,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-21 19:52:57,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-21 19:52:57,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-21 19:52:57,877 INFO L274 PluginConnector]: CDTParser initialized [2024-10-21 19:52:57,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-theta/exponential-nondet.i [2024-10-21 19:52:59,137 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-21 19:52:59,448 INFO L384 CDTParser]: Found 1 translation units. [2024-10-21 19:52:59,449 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-theta/exponential-nondet.i [2024-10-21 19:52:59,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/83bb7cdcd/00c7192b7e7246a1a25728a63be0711b/FLAGf2382e28d [2024-10-21 19:52:59,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/83bb7cdcd/00c7192b7e7246a1a25728a63be0711b [2024-10-21 19:52:59,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-21 19:52:59,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-21 19:52:59,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-21 19:52:59,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-21 19:52:59,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-21 19:52:59,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:52:59" (1/1) ... [2024-10-21 19:52:59,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310bff17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:52:59, skipping insertion in model container [2024-10-21 19:52:59,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:52:59" (1/1) ... [2024-10-21 19:52:59,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-21 19:53:00,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 19:53:00,085 INFO L200 MainTranslator]: Completed pre-run [2024-10-21 19:53:00,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-21 19:53:00,155 INFO L204 MainTranslator]: Completed translation [2024-10-21 19:53:00,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00 WrapperNode [2024-10-21 19:53:00,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-21 19:53:00,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-21 19:53:00,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-21 19:53:00,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-21 19:53:00,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,189 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-10-21 19:53:00,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-21 19:53:00,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-21 19:53:00,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-21 19:53:00,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-21 19:53:00,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-21 19:53:00,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-21 19:53:00,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-21 19:53:00,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-21 19:53:00,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (1/1) ... [2024-10-21 19:53:00,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-21 19:53:00,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:00,238 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) [2024-10-21 19:53:00,240 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 [2024-10-21 19:53:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-21 19:53:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-10-21 19:53:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-10-21 19:53:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-10-21 19:53:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-10-21 19:53:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-21 19:53:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-21 19:53:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-21 19:53:00,280 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-21 19:53:00,391 INFO L238 CfgBuilder]: Building ICFG [2024-10-21 19:53:00,393 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-21 19:53:00,530 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-21 19:53:00,530 INFO L287 CfgBuilder]: Performing block encoding [2024-10-21 19:53:00,540 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-21 19:53:00,540 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-21 19:53:00,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:00 BoogieIcfgContainer [2024-10-21 19:53:00,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-21 19:53:00,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-21 19:53:00,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-21 19:53:00,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-21 19:53:00,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:52:59" (1/3) ... [2024-10-21 19:53:00,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3dab02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:53:00, skipping insertion in model container [2024-10-21 19:53:00,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:00" (2/3) ... [2024-10-21 19:53:00,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3dab02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:53:00, skipping insertion in model container [2024-10-21 19:53:00,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:00" (3/3) ... [2024-10-21 19:53:00,546 INFO L112 eAbstractionObserver]: Analyzing ICFG exponential-nondet.i [2024-10-21 19:53:00,557 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-21 19:53:00,557 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-21 19:53:00,557 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-21 19:53:00,588 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 19:53:00,619 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:00,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 19:53:00,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:00,621 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) [2024-10-21 19:53:00,622 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 [2024-10-21 19:53:00,648 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 19:53:00,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-21 19:53:00,682 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;@c0d6557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:00,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-21 19:53:00,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:00,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:00,849 INFO L85 PathProgramCache]: Analyzing trace with hash 193637427, now seen corresponding path program 1 times [2024-10-21 19:53:00,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:00,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606628576] [2024-10-21 19:53:00,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:00,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:01,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:01,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606628576] [2024-10-21 19:53:01,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606628576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:01,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 19:53:01,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-21 19:53:01,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342078932] [2024-10-21 19:53:01,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:01,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-21 19:53:01,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-21 19:53:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-21 19:53:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:01,201 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:01,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) 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) [2024-10-21 19:53:01,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:01,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-21 19:53:01,265 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:01,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:01,265 INFO L85 PathProgramCache]: Analyzing trace with hash -329262991, now seen corresponding path program 1 times [2024-10-21 19:53:01,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:01,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010986141] [2024-10-21 19:53:01,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:01,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:01,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 19:53:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:01,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 19:53:01,388 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 19:53:01,389 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-21 19:53:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-21 19:53:01,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-21 19:53:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-21 19:53:01,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-21 19:53:01,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-21 19:53:01,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-21 19:53:01,402 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-21 19:53:01,404 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-21 19:53:01,404 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-21 19:53:01,429 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 19:53:01,433 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:01,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 19:53:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:01,438 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 19:53:01,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-10-21 19:53:01,442 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 19:53:01,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-21 19:53:01,445 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;@c0d6557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:01,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-21 19:53:01,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:01,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:01,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2131647900, now seen corresponding path program 1 times [2024-10-21 19:53:01,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:01,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297774590] [2024-10-21 19:53:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:01,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:01,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297774590] [2024-10-21 19:53:01,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297774590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:01,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 19:53:01,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-21 19:53:01,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277646426] [2024-10-21 19:53:01,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:01,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-21 19:53:01,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-21 19:53:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-21 19:53:01,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:01,685 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:01,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) 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) [2024-10-21 19:53:01,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:01,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-21 19:53:01,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:01,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:01,761 INFO L85 PathProgramCache]: Analyzing trace with hash -686340416, now seen corresponding path program 1 times [2024-10-21 19:53:01,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:01,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707743886] [2024-10-21 19:53:01,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:01,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:01,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:01,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707743886] [2024-10-21 19:53:01,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707743886] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:01,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8306017] [2024-10-21 19:53:01,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:01,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:01,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:01,916 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) [2024-10-21 19:53:01,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-21 19:53:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:02,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:02,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:02,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-21 19:53:02,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8306017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:02,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-21 19:53:02,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-21 19:53:02,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267467750] [2024-10-21 19:53:02,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:02,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-21 19:53:02,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:02,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-21 19:53:02,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-21 19:53:02,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:02,105 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:02,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-21 19:53:02,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:02,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:02,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-21 19:53:02,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:02,413 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:02,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:02,413 INFO L85 PathProgramCache]: Analyzing trace with hash 198283962, now seen corresponding path program 1 times [2024-10-21 19:53:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:02,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701016044] [2024-10-21 19:53:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:02,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:02,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:02,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701016044] [2024-10-21 19:53:02,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701016044] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:02,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861119521] [2024-10-21 19:53:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:02,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:02,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:02,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:02,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-21 19:53:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:02,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:02,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:02,697 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:02,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:53:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:02,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861119521] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:53:02,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:53:02,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-21 19:53:02,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433910965] [2024-10-21 19:53:02,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:53:02,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-21 19:53:02,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-21 19:53:02,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-21 19:53:02,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:02,805 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:02,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-10-21 19:53:02,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:02,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:02,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:02,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-21 19:53:02,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-21 19:53:03,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:03,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:03,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:03,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1289716870, now seen corresponding path program 1 times [2024-10-21 19:53:03,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:03,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945464045] [2024-10-21 19:53:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:03,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:03,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 19:53:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:03,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 19:53:03,256 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 19:53:03,257 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-21 19:53:03,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-21 19:53:03,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-21 19:53:03,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-21 19:53:03,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-21 19:53:03,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-21 19:53:03,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-21 19:53:03,262 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-21 19:53:03,262 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-21 19:53:03,262 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-21 19:53:03,280 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 19:53:03,284 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:03,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 19:53:03,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:03,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 19:53:03,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-10-21 19:53:03,290 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 19:53:03,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-21 19:53:03,291 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;@c0d6557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:03,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-21 19:53:03,362 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:03,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1284206315, now seen corresponding path program 1 times [2024-10-21 19:53:03,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:03,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187284236] [2024-10-21 19:53:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:03,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:03,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:03,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:03,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187284236] [2024-10-21 19:53:03,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187284236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:03,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 19:53:03,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-21 19:53:03,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771997493] [2024-10-21 19:53:03,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:03,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-21 19:53:03,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-21 19:53:03,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-21 19:53:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:03,419 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:03,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) 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) [2024-10-21 19:53:03,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:03,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:03,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-21 19:53:03,482 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:03,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2094031586, now seen corresponding path program 1 times [2024-10-21 19:53:03,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:03,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798227624] [2024-10-21 19:53:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:03,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:03,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:03,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798227624] [2024-10-21 19:53:03,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798227624] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:03,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053900533] [2024-10-21 19:53:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:03,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:03,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:03,576 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:03,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-21 19:53:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:03,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:03,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:03,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-21 19:53:03,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053900533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:03,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-21 19:53:03,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-21 19:53:03,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127638964] [2024-10-21 19:53:03,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:03,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-21 19:53:03,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:03,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-21 19:53:03,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-21 19:53:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:03,728 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:03,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-21 19:53:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:03,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-21 19:53:04,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:04,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:04,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash 490470313, now seen corresponding path program 1 times [2024-10-21 19:53:04,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:04,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841495859] [2024-10-21 19:53:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:04,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:04,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:04,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841495859] [2024-10-21 19:53:04,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841495859] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996511101] [2024-10-21 19:53:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:04,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:04,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:04,094 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:04,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-21 19:53:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:04,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:04,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:04,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:53:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:04,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996511101] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:53:04,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:53:04,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-21 19:53:04,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567331052] [2024-10-21 19:53:04,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:53:04,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-21 19:53:04,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:04,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-21 19:53:04,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-21 19:53:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:04,311 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:04,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-10-21 19:53:04,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:04,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:04,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-21 19:53:04,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-21 19:53:04,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-21 19:53:04,673 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:04,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1419142271, now seen corresponding path program 1 times [2024-10-21 19:53:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:04,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699229987] [2024-10-21 19:53:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:04,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:04,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 19:53:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:04,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 19:53:04,923 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 19:53:04,923 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-21 19:53:04,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-21 19:53:04,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-21 19:53:04,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-21 19:53:04,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-21 19:53:04,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-21 19:53:04,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-21 19:53:04,925 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-21 19:53:04,926 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-21 19:53:04,926 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-21 19:53:04,948 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 19:53:04,950 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:04,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 19:53:04,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:04,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 19:53:04,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-10-21 19:53:04,963 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 19:53:04,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-21 19:53:04,963 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;@c0d6557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:04,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-21 19:53:05,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:05,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:05,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1531015354, now seen corresponding path program 1 times [2024-10-21 19:53:05,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:05,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121895787] [2024-10-21 19:53:05,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:05,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:05,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:05,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:05,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121895787] [2024-10-21 19:53:05,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121895787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:05,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 19:53:05,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-21 19:53:05,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916658892] [2024-10-21 19:53:05,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:05,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-21 19:53:05,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:05,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-21 19:53:05,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-21 19:53:05,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:05,060 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:05,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) 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) [2024-10-21 19:53:05,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:05,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-21 19:53:05,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:05,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:05,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1934273788, now seen corresponding path program 1 times [2024-10-21 19:53:05,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:05,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754123532] [2024-10-21 19:53:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:05,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:05,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:05,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754123532] [2024-10-21 19:53:05,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754123532] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:05,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249309301] [2024-10-21 19:53:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:05,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:05,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:05,167 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:05,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-21 19:53:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:05,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:05,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:05,294 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-21 19:53:05,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249309301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:05,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-21 19:53:05,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-21 19:53:05,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680851688] [2024-10-21 19:53:05,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:05,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-21 19:53:05,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:05,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-21 19:53:05,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-21 19:53:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:05,296 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:05,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-21 19:53:05,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:05,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:05,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-21 19:53:05,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:05,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:05,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash 167055532, now seen corresponding path program 1 times [2024-10-21 19:53:05,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:05,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017824688] [2024-10-21 19:53:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:05,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:05,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017824688] [2024-10-21 19:53:05,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017824688] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827009874] [2024-10-21 19:53:05,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:05,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:05,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:05,631 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:05,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-21 19:53:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:05,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:05,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:05,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:53:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:05,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827009874] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:53:05,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:53:05,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-21 19:53:05,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758711310] [2024-10-21 19:53:05,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:53:05,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-21 19:53:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-21 19:53:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-21 19:53:05,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:05,874 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:05,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-10-21 19:53:05,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:05,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:05,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-21 19:53:06,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-21 19:53:06,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-21 19:53:06,271 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:06,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:06,271 INFO L85 PathProgramCache]: Analyzing trace with hash -439772772, now seen corresponding path program 1 times [2024-10-21 19:53:06,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:06,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386966611] [2024-10-21 19:53:06,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:06,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:09,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 19:53:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:53:12,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 19:53:12,018 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 19:53:12,018 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-21 19:53:12,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-21 19:53:12,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-21 19:53:12,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-21 19:53:12,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-21 19:53:12,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-21 19:53:12,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-21 19:53:12,021 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-21 19:53:12,021 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-21 19:53:12,021 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-10-21 19:53:12,040 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 19:53:12,044 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:12,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 19:53:12,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:12,045 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 19:53:12,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2024-10-21 19:53:12,048 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 19:53:12,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-21 19:53:12,049 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;@c0d6557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:53:12,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-21 19:53:12,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:12,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:12,123 INFO L85 PathProgramCache]: Analyzing trace with hash -85580553, now seen corresponding path program 1 times [2024-10-21 19:53:12,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:12,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743205273] [2024-10-21 19:53:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:12,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:12,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743205273] [2024-10-21 19:53:12,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743205273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:12,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 19:53:12,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-21 19:53:12,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907728628] [2024-10-21 19:53:12,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:12,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-21 19:53:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:12,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-21 19:53:12,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-21 19:53:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:12,157 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:12,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) 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) [2024-10-21 19:53:12,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:12,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:12,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-21 19:53:12,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:12,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:12,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1628305958, now seen corresponding path program 1 times [2024-10-21 19:53:12,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:12,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116879930] [2024-10-21 19:53:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:12,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:12,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116879930] [2024-10-21 19:53:12,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116879930] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:12,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501572392] [2024-10-21 19:53:12,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:12,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:12,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:12,299 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:12,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-21 19:53:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:12,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:12,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:12,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-21 19:53:12,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501572392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:53:12,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-21 19:53:12,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-21 19:53:12,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007516552] [2024-10-21 19:53:12,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:53:12,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-21 19:53:12,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:12,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-21 19:53:12,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-21 19:53:12,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:12,444 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:12,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-21 19:53:12,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:12,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:12,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-21 19:53:12,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-21 19:53:12,721 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:12,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1062121789, now seen corresponding path program 1 times [2024-10-21 19:53:12,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:12,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856553731] [2024-10-21 19:53:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:12,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:12,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:12,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856553731] [2024-10-21 19:53:12,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856553731] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:12,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124865473] [2024-10-21 19:53:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:12,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:12,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:12,789 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:12,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-21 19:53:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:12,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:53:12,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:12,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:53:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:13,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124865473] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:53:13,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:53:13,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-21 19:53:13,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614476850] [2024-10-21 19:53:13,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:53:13,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-21 19:53:13,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:13,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-21 19:53:13,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-21 19:53:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:13,012 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:13,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-10-21 19:53:13,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:13,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:13,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-21 19:53:13,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-21 19:53:13,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-21 19:53:13,405 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:13,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:13,405 INFO L85 PathProgramCache]: Analyzing trace with hash 965676362, now seen corresponding path program 1 times [2024-10-21 19:53:13,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:13,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376884889] [2024-10-21 19:53:13,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:13,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:53:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:13,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:53:13,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376884889] [2024-10-21 19:53:13,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376884889] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:53:13,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469389519] [2024-10-21 19:53:13,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:13,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:53:13,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:53:13,581 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:53:13,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-21 19:53:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:53:13,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-21 19:53:13,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:53:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:13,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:53:14,043 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:53:14,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469389519] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:53:14,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:53:14,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-10-21 19:53:14,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318525797] [2024-10-21 19:53:14,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:53:14,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-21 19:53:14,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:53:14,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-21 19:53:14,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-10-21 19:53:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:14,047 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:53:14,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 13.130434782608695) internal successors, (302), 24 states have internal predecessors, (302), 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) [2024-10-21 19:53:14,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:14,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:14,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-21 19:53:14,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:53:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:53:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:53:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-21 19:53:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-21 19:53:14,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-21 19:53:14,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-21 19:53:14,466 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:53:14,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:53:14,466 INFO L85 PathProgramCache]: Analyzing trace with hash 265037085, now seen corresponding path program 1 times [2024-10-21 19:53:14,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:53:14,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987295113] [2024-10-21 19:53:14,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:53:14,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:54:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:54:57,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 19:55:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:55:48,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 19:55:48,899 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 19:55:48,899 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-21 19:55:48,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-21 19:55:48,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-21 19:55:48,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-21 19:55:48,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-21 19:55:48,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-21 19:55:48,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-21 19:55:48,901 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-21 19:55:48,901 WARN L239 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-21 19:55:48,901 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-10-21 19:55:48,925 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 19:55:48,927 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:55:48,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 19:55:48,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:55:48,929 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 19:55:48,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2024-10-21 19:55:48,934 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 19:55:48,935 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-21 19:55:48,935 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;@c0d6557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 19:55:48,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-21 19:55:49,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:55:49,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:55:49,005 INFO L85 PathProgramCache]: Analyzing trace with hash 69700648, now seen corresponding path program 1 times [2024-10-21 19:55:49,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:55:49,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478338188] [2024-10-21 19:55:49,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:49,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:55:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:55:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:49,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:55:49,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478338188] [2024-10-21 19:55:49,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478338188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:55:49,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 19:55:49,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-21 19:55:49,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461150142] [2024-10-21 19:55:49,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:55:49,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-21 19:55:49,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:55:49,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-21 19:55:49,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-21 19:55:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:49,034 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:55:49,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) 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) [2024-10-21 19:55:49,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:49,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:55:49,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-21 19:55:49,068 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:55:49,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:55:49,068 INFO L85 PathProgramCache]: Analyzing trace with hash -36294840, now seen corresponding path program 1 times [2024-10-21 19:55:49,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:55:49,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325309017] [2024-10-21 19:55:49,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:49,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:55:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:55:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:49,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:55:49,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325309017] [2024-10-21 19:55:49,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325309017] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:55:49,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483443529] [2024-10-21 19:55:49,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:49,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:55:49,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:55:49,121 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:55:49,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-21 19:55:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:55:49,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:55:49,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:55:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:49,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-21 19:55:49,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483443529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 19:55:49,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-21 19:55:49,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-21 19:55:49,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902778944] [2024-10-21 19:55:49,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 19:55:49,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-21 19:55:49,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:55:49,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-21 19:55:49,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-21 19:55:49,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:49,250 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:55:49,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-21 19:55:49,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:55:49,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:55:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:55:49,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-21 19:55:49,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-21 19:55:49,501 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:55:49,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:55:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1125138706, now seen corresponding path program 1 times [2024-10-21 19:55:49,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:55:49,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231230333] [2024-10-21 19:55:49,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:49,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:55:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:55:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:49,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:55:49,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231230333] [2024-10-21 19:55:49,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231230333] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:55:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651527464] [2024-10-21 19:55:49,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:49,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:55:49,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:55:49,558 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:55:49,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-21 19:55:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:55:49,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 19:55:49,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:55:49,702 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:49,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:55:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:49,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651527464] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:55:49,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:55:49,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-21 19:55:49,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515562663] [2024-10-21 19:55:49,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:55:49,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-21 19:55:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:55:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-21 19:55:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-21 19:55:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:49,769 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:55:49,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-10-21 19:55:49,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:55:49,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:55:49,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:55:49,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:55:49,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-21 19:55:49,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-21 19:55:50,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:55:50,159 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:55:50,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:55:50,159 INFO L85 PathProgramCache]: Analyzing trace with hash 539752322, now seen corresponding path program 1 times [2024-10-21 19:55:50,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:55:50,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898112439] [2024-10-21 19:55:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:50,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:55:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:55:50,300 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:50,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 19:55:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898112439] [2024-10-21 19:55:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898112439] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 19:55:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645207782] [2024-10-21 19:55:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:50,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 19:55:50,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 19:55:50,303 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 19:55:50,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-21 19:55:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 19:55:50,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-21 19:55:50,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 19:55:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:50,518 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 19:55:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 19:55:50,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645207782] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 19:55:50,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 19:55:50,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-10-21 19:55:50,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038108184] [2024-10-21 19:55:50,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 19:55:50,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-21 19:55:50,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 19:55:50,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-21 19:55:50,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-10-21 19:55:50,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:50,726 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 19:55:50,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 13.130434782608695) internal successors, (302), 24 states have internal predecessors, (302), 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) [2024-10-21 19:55:50,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:55:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:55:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-21 19:55:50,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 19:55:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 19:55:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 19:55:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-21 19:55:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-21 19:55:50,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-21 19:55:51,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-21 19:55:51,161 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 19:55:51,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 19:55:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash -313186238, now seen corresponding path program 1 times [2024-10-21 19:55:51,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 19:55:51,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19847180] [2024-10-21 19:55:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 19:55:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 19:58:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 19:58:50,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-21 20:01:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-21 20:01:45,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-21 20:01:45,853 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-21 20:01:45,853 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-21 20:01:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-21 20:01:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-21 20:01:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-21 20:01:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-21 20:01:45,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-21 20:01:45,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-21 20:01:45,856 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-21 20:01:45,856 WARN L239 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-21 20:01:45,856 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-10-21 20:01:45,875 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-21 20:01:45,877 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 20:01:45,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-21 20:01:45,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 20:01:45,879 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-21 20:01:45,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2024-10-21 20:01:45,883 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-21 20:01:45,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-21 20:01:45,883 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;@c0d6557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-21 20:01:45,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-21 20:01:45,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 20:01:45,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 20:01:45,935 INFO L85 PathProgramCache]: Analyzing trace with hash 975030489, now seen corresponding path program 1 times [2024-10-21 20:01:45,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 20:01:45,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135900589] [2024-10-21 20:01:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:45,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 20:01:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 20:01:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:45,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 20:01:45,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135900589] [2024-10-21 20:01:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135900589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 20:01:45,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-21 20:01:45,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-21 20:01:45,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766936888] [2024-10-21 20:01:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 20:01:45,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-21 20:01:45,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 20:01:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-21 20:01:45,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-21 20:01:45,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:45,957 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 20:01:45,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) 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) [2024-10-21 20:01:45,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 20:01:45,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-21 20:01:45,988 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 20:01:45,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 20:01:45,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1079320726, now seen corresponding path program 1 times [2024-10-21 20:01:45,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 20:01:45,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006943839] [2024-10-21 20:01:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:45,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 20:01:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 20:01:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:46,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 20:01:46,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006943839] [2024-10-21 20:01:46,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006943839] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 20:01:46,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318889876] [2024-10-21 20:01:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:46,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 20:01:46,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 20:01:46,032 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 20:01:46,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-21 20:01:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 20:01:46,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 20:01:46,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 20:01:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:46,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-21 20:01:46,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318889876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-21 20:01:46,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-21 20:01:46,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-21 20:01:46,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367903841] [2024-10-21 20:01:46,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-21 20:01:46,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-21 20:01:46,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 20:01:46,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-21 20:01:46,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-21 20:01:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:46,170 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 20:01:46,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-21 20:01:46,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 20:01:46,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:46,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 20:01:46,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 20:01:46,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-21 20:01:46,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-21 20:01:46,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 20:01:46,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 20:01:46,426 INFO L85 PathProgramCache]: Analyzing trace with hash 900797485, now seen corresponding path program 1 times [2024-10-21 20:01:46,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 20:01:46,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429156278] [2024-10-21 20:01:46,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:46,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 20:01:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 20:01:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:46,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 20:01:46,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429156278] [2024-10-21 20:01:46,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429156278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 20:01:46,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063215260] [2024-10-21 20:01:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:46,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 20:01:46,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 20:01:46,467 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 20:01:46,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-21 20:01:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 20:01:46,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-21 20:01:46,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 20:01:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:46,593 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 20:01:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:46,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063215260] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 20:01:46,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 20:01:46,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-21 20:01:46,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839516307] [2024-10-21 20:01:46,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 20:01:46,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-21 20:01:46,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 20:01:46,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-21 20:01:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-21 20:01:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:46,653 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 20:01:46,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-10-21 20:01:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 20:01:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 20:01:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 20:01:46,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 20:01:46,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-21 20:01:46,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-21 20:01:47,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-21 20:01:47,006 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 20:01:47,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 20:01:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2054664782, now seen corresponding path program 1 times [2024-10-21 20:01:47,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 20:01:47,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835340799] [2024-10-21 20:01:47,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:47,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-21 20:01:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 20:01:47,124 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:47,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-21 20:01:47,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835340799] [2024-10-21 20:01:47,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835340799] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-21 20:01:47,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951294514] [2024-10-21 20:01:47,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:47,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-21 20:01:47,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-21 20:01:47,126 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-21 20:01:47,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-21 20:01:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-21 20:01:47,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-21 20:01:47,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-21 20:01:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:47,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-21 20:01:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-21 20:01:47,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951294514] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-21 20:01:47,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-21 20:01:47,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-10-21 20:01:47,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206814078] [2024-10-21 20:01:47,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-21 20:01:47,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-21 20:01:47,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-21 20:01:47,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-21 20:01:47,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-10-21 20:01:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:47,554 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-21 20:01:47,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 13.130434782608695) internal successors, (302), 24 states have internal predecessors, (302), 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) [2024-10-21 20:01:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-21 20:01:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-21 20:01:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-21 20:01:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-21 20:01:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-21 20:01:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-21 20:01:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-21 20:01:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-21 20:01:47,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-21 20:01:48,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-21 20:01:48,050 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-21 20:01:48,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-21 20:01:48,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1420010571, now seen corresponding path program 1 times [2024-10-21 20:01:48,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-21 20:01:48,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964260000] [2024-10-21 20:01:48,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-21 20:01:48,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15