/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 21:45:42,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 21:45:42,643 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 21:45:42,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 21:45:42,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 21:45:42,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 21:45:42,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 21:45:42,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 21:45:42,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 21:45:42,678 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 21:45:42,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 21:45:42,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 21:45:42,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 21:45:42,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 21:45:42,680 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 21:45:42,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 21:45:42,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 21:45:42,680 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 21:45:42,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 21:45:42,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 21:45:42,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 21:45:42,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 21:45:42,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 21:45:42,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 21:45:42,682 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 21:45:42,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 21:45:42,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 21:45:42,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 21:45:42,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 21:45:42,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 21:45:42,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 21:45:42,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 21:45:42,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 21:45:42,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 21:45:42,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 21:45:42,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 21:45:42,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 21:45:42,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 21:45:42,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 21:45:42,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 21:45:42,685 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 21:45:42,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 21:45:42,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 21:45:42,686 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 21:45:42,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 21:45:42,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 21:45:42,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 21:45:42,889 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 21:45:42,890 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 21:45:42,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound20.c [2023-12-19 21:45:43,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 21:45:44,041 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 21:45:44,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound20.c [2023-12-19 21:45:44,047 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6948d9b87/3e4c892def8f41da9f8376cd0532d256/FLAGc6ebaca14 [2023-12-19 21:45:44,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6948d9b87/3e4c892def8f41da9f8376cd0532d256 [2023-12-19 21:45:44,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 21:45:44,485 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 21:45:44,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 21:45:44,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 21:45:44,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 21:45:44,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542dd4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44, skipping insertion in model container [2023-12-19 21:45:44,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 21:45:44,639 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound20.c[458,471] [2023-12-19 21:45:44,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 21:45:44,665 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 21:45:44,676 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound20.c[458,471] [2023-12-19 21:45:44,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 21:45:44,694 INFO L206 MainTranslator]: Completed translation [2023-12-19 21:45:44,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44 WrapperNode [2023-12-19 21:45:44,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 21:45:44,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 21:45:44,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 21:45:44,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 21:45:44,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,727 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-12-19 21:45:44,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 21:45:44,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 21:45:44,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 21:45:44,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 21:45:44,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,749 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 21:45:44,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 21:45:44,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 21:45:44,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 21:45:44,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 21:45:44,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (1/1) ... [2023-12-19 21:45:44,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 21:45:44,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:45:44,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 21:45:44,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 21:45:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 21:45:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 21:45:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 21:45:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 21:45:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-19 21:45:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-19 21:45:44,986 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 21:45:44,988 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 21:45:45,128 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 21:45:45,144 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 21:45:45,145 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 21:45:45,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:45:45 BoogieIcfgContainer [2023-12-19 21:45:45,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 21:45:45,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 21:45:45,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 21:45:45,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 21:45:45,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 09:45:44" (1/3) ... [2023-12-19 21:45:45,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f7a935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:45:45, skipping insertion in model container [2023-12-19 21:45:45,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:45:44" (2/3) ... [2023-12-19 21:45:45,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f7a935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:45:45, skipping insertion in model container [2023-12-19 21:45:45,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:45:45" (3/3) ... [2023-12-19 21:45:45,150 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound20.c [2023-12-19 21:45:45,162 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 21:45:45,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 21:45:45,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 21:45:45,201 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e8fb33c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 21:45:45,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 21:45:45,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 21:45:45,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-19 21:45:45,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:45:45,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:45:45,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:45:45,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:45:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash 793793432, now seen corresponding path program 1 times [2023-12-19 21:45:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:45:45,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468705942] [2023-12-19 21:45:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:45,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:45:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:45:45,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:45:45,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468705942] [2023-12-19 21:45:45,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 21:45:45,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113919940] [2023-12-19 21:45:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:45,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:45,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:45:45,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:45:45,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 21:45:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:45:45,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 21:45:45,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:45:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 21:45:45,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 21:45:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113919940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 21:45:45,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 21:45:45,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 21:45:45,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913685183] [2023-12-19 21:45:45,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 21:45:45,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 21:45:45,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:45:45,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 21:45:45,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 21:45:45,400 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 21:45:45,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:45:45,425 INFO L93 Difference]: Finished difference Result 32 states and 46 transitions. [2023-12-19 21:45:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 21:45:45,427 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-19 21:45:45,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:45:45,431 INFO L225 Difference]: With dead ends: 32 [2023-12-19 21:45:45,431 INFO L226 Difference]: Without dead ends: 15 [2023-12-19 21:45:45,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 21:45:45,435 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 21:45:45,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 21:45:45,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-19 21:45:45,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-19 21:45:45,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 21:45:45,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2023-12-19 21:45:45,456 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 8 [2023-12-19 21:45:45,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:45:45,456 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2023-12-19 21:45:45,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 21:45:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-12-19 21:45:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-19 21:45:45,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:45:45,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:45:45,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 21:45:45,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 21:45:45,659 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:45:45,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:45:45,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1922989550, now seen corresponding path program 1 times [2023-12-19 21:45:45,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:45:45,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918797950] [2023-12-19 21:45:45,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:45,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:45:45,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:45:45,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378847123] [2023-12-19 21:45:45,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:45,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:45,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:45:45,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:45:45,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 21:45:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:45:45,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 21:45:45,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:45:45,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 21:45:45,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 21:45:45,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:45:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918797950] [2023-12-19 21:45:45,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:45:45,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378847123] [2023-12-19 21:45:45,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378847123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 21:45:45,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 21:45:45,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 21:45:45,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318132577] [2023-12-19 21:45:45,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 21:45:45,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 21:45:45,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:45:45,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 21:45:45,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 21:45:45,750 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 21:45:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:45:45,765 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2023-12-19 21:45:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 21:45:45,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-19 21:45:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:45:45,766 INFO L225 Difference]: With dead ends: 25 [2023-12-19 21:45:45,766 INFO L226 Difference]: Without dead ends: 17 [2023-12-19 21:45:45,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 21:45:45,767 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 21:45:45,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 21:45:45,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-12-19 21:45:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-12-19 21:45:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 21:45:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-12-19 21:45:45,771 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2023-12-19 21:45:45,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:45:45,771 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-12-19 21:45:45,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 21:45:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-12-19 21:45:45,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-19 21:45:45,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:45:45,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:45:45,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 21:45:45,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 21:45:45,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:45:45,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:45:45,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1924777010, now seen corresponding path program 1 times [2023-12-19 21:45:45,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:45:45,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468347537] [2023-12-19 21:45:45,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:45,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:45:45,989 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:45:45,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41102435] [2023-12-19 21:45:45,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:45,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:45,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:45:46,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:45:46,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 21:45:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:45:46,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 21:45:46,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:45:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 21:45:46,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 21:45:46,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:45:46,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468347537] [2023-12-19 21:45:46,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:45:46,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41102435] [2023-12-19 21:45:46,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41102435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 21:45:46,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 21:45:46,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 21:45:46,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927337308] [2023-12-19 21:45:46,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 21:45:46,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 21:45:46,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:45:46,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 21:45:46,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 21:45:46,104 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 21:45:46,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:45:46,133 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2023-12-19 21:45:46,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 21:45:46,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-19 21:45:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:45:46,134 INFO L225 Difference]: With dead ends: 27 [2023-12-19 21:45:46,134 INFO L226 Difference]: Without dead ends: 23 [2023-12-19 21:45:46,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 21:45:46,135 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 21:45:46,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 52 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 21:45:46,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-19 21:45:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-12-19 21:45:46,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 21:45:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-12-19 21:45:46,139 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 9 [2023-12-19 21:45:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:45:46,140 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-12-19 21:45:46,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 21:45:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-12-19 21:45:46,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 21:45:46,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:45:46,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:45:46,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 21:45:46,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:46,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:45:46,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:45:46,346 INFO L85 PathProgramCache]: Analyzing trace with hash 76913492, now seen corresponding path program 1 times [2023-12-19 21:45:46,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:45:46,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227199367] [2023-12-19 21:45:46,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:46,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:45:46,354 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:45:46,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595143598] [2023-12-19 21:45:46,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:46,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:46,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:45:46,361 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:45:46,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 21:45:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:45:46,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 21:45:46,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:45:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 21:45:46,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:45:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 21:45:46,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:45:46,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227199367] [2023-12-19 21:45:46,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:45:46,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595143598] [2023-12-19 21:45:46,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595143598] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:45:46,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:45:46,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-12-19 21:45:46,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229913930] [2023-12-19 21:45:46,534 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:45:46,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 21:45:46,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:45:46,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 21:45:46,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-19 21:45:46,540 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 21:45:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:45:46,922 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2023-12-19 21:45:46,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 21:45:46,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-12-19 21:45:46,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:45:46,924 INFO L225 Difference]: With dead ends: 57 [2023-12-19 21:45:46,924 INFO L226 Difference]: Without dead ends: 49 [2023-12-19 21:45:46,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-19 21:45:46,925 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 21:45:46,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 77 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 21:45:46,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-19 21:45:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2023-12-19 21:45:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-19 21:45:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2023-12-19 21:45:46,942 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 17 [2023-12-19 21:45:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:45:46,942 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2023-12-19 21:45:46,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 21:45:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2023-12-19 21:45:46,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 21:45:46,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:45:46,944 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:45:46,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 21:45:47,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:47,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:45:47,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:45:47,151 INFO L85 PathProgramCache]: Analyzing trace with hash 78700952, now seen corresponding path program 1 times [2023-12-19 21:45:47,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:45:47,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494079391] [2023-12-19 21:45:47,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:47,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:45:47,168 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:45:47,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365966924] [2023-12-19 21:45:47,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:47,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:47,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:45:47,171 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:45:47,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 21:45:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:45:47,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-19 21:45:47,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:45:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 21:45:47,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:45:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 21:45:47,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:45:47,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494079391] [2023-12-19 21:45:47,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:45:47,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365966924] [2023-12-19 21:45:47,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365966924] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:45:47,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:45:47,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11 [2023-12-19 21:45:47,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493331610] [2023-12-19 21:45:47,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:45:47,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 21:45:47,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:45:47,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 21:45:47,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-19 21:45:47,442 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 21:45:47,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:45:47,542 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2023-12-19 21:45:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 21:45:47,542 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-12-19 21:45:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:45:47,543 INFO L225 Difference]: With dead ends: 59 [2023-12-19 21:45:47,543 INFO L226 Difference]: Without dead ends: 51 [2023-12-19 21:45:47,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-19 21:45:47,547 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 21:45:47,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 68 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 21:45:47,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-19 21:45:47,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2023-12-19 21:45:47,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.125) internal successors, (36), 34 states have internal predecessors, (36), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-19 21:45:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2023-12-19 21:45:47,561 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 17 [2023-12-19 21:45:47,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:45:47,561 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2023-12-19 21:45:47,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 21:45:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-12-19 21:45:47,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 21:45:47,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:45:47,562 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:45:47,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 21:45:47,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:47,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:45:47,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:45:47,770 INFO L85 PathProgramCache]: Analyzing trace with hash 731759343, now seen corresponding path program 1 times [2023-12-19 21:45:47,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:45:47,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605209904] [2023-12-19 21:45:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:47,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:45:47,779 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:45:47,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512504636] [2023-12-19 21:45:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:45:47,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:45:47,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:45:47,784 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:45:47,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 21:45:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:45:47,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 21:45:47,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:45:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 21:45:47,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:45:56,249 WARN L854 $PredicateComparison]: unable to prove that (or (= (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~k~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| 29) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6)) 30) 0))) is different from false [2023-12-19 21:46:04,309 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:46:12,321 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:46:28,343 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:46:32,349 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_4| Int)) (or (= (mod (+ (* 29 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* 6 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* 10 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* 15 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|)) 30) 0) (= (* |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|))))) is different from true [2023-12-19 21:46:48,565 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:47:04,609 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:47:08,617 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_4| Int)) (or (= (mod (+ (* 29 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* 6 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* 10 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* 15 |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|)) 30) 0) (= (* |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_9|)))) (= c___VERIFIER_assert_~cond 0)) is different from true [2023-12-19 21:47:16,635 WARN L854 $PredicateComparison]: unable to prove that (or (= (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~k~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (< |c_ULTIMATE.start_main_~c~0#1| |c_ULTIMATE.start_main_~k~0#1|) (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| 29) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6)) 30) 0))) is different from false [2023-12-19 21:47:36,747 WARN L854 $PredicateComparison]: unable to prove that (or (= (+ |c_ULTIMATE.start_main_~y~0#1| (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (+ |c_ULTIMATE.start_main_~c~0#1| (* |c_ULTIMATE.start_main_~c~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| 29) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6)) 30) 0))) is different from false [2023-12-19 21:47:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 5 not checked. [2023-12-19 21:47:48,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:47:48,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605209904] [2023-12-19 21:47:48,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:47:48,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512504636] [2023-12-19 21:47:48,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512504636] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:47:48,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:47:48,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2023-12-19 21:47:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299456761] [2023-12-19 21:47:48,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:47:48,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 21:47:48,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:47:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 21:47:48,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=92, Unknown=5, NotChecked=110, Total=240 [2023-12-19 21:47:48,791 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 14 states have internal predecessors, (30), 7 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-19 21:47:48,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:47:48,920 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2023-12-19 21:47:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 21:47:48,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 14 states have internal predecessors, (30), 7 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 28 [2023-12-19 21:47:48,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:47:48,923 INFO L225 Difference]: With dead ends: 50 [2023-12-19 21:47:48,923 INFO L226 Difference]: Without dead ends: 44 [2023-12-19 21:47:48,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=51, Invalid=146, Unknown=5, NotChecked=140, Total=342 [2023-12-19 21:47:48,924 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 21:47:48,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 125 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 116 Unchecked, 0.1s Time] [2023-12-19 21:47:48,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-19 21:47:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-12-19 21:47:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.09375) internal successors, (35), 33 states have internal predecessors, (35), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-19 21:47:48,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2023-12-19 21:47:48,930 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 28 [2023-12-19 21:47:48,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:47:48,930 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2023-12-19 21:47:48,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 14 states have internal predecessors, (30), 7 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-19 21:47:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2023-12-19 21:47:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-19 21:47:48,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:47:48,931 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:47:48,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 21:47:49,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:47:49,137 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:47:49,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:47:49,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1879764937, now seen corresponding path program 2 times [2023-12-19 21:47:49,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:47:49,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035721111] [2023-12-19 21:47:49,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:47:49,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:47:49,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:47:49,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411882439] [2023-12-19 21:47:49,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-19 21:47:49,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:47:49,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:47:49,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:47:49,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 21:47:49,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-19 21:47:49,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 21:47:49,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 21:47:49,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:47:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-19 21:47:49,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:48:56,076 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:49:08,120 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:49:16,158 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| Int)) (or (= (+ |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19|)) (+ |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9| (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9|))) (= (mod (+ (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 6) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 10) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 29) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 15)) 30) 0)))) is different from true [2023-12-19 21:49:28,191 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:49:44,223 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 21:49:52,245 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| Int)) (or (= (+ |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19|)) (+ |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9| (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9|))) (= (mod (+ (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 6) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 10) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 29) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_19| 15)) 30) 0))) (= c___VERIFIER_assert_~cond 0)) is different from true [2023-12-19 21:50:09,809 WARN L854 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| 29) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6)) 30) 0)) (= (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 2)) (+ (* |c_ULTIMATE.start_main_~c~0#1| 2) (* |c_ULTIMATE.start_main_~c~0#1| |c_ULTIMATE.start_main_~y~0#1|)))) is different from false [2023-12-19 21:50:22,651 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 4 refuted. 6 times theorem prover too weak. 15 trivial. 9 not checked. [2023-12-19 21:50:22,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:50:22,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035721111] [2023-12-19 21:50:22,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:50:22,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411882439] [2023-12-19 21:50:22,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411882439] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:50:22,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:50:22,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2023-12-19 21:50:22,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264791788] [2023-12-19 21:50:22,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:50:22,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-19 21:50:22,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:50:22,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-19 21:50:22,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=162, Unknown=14, NotChecked=84, Total=306 [2023-12-19 21:50:22,653 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 18 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 21:50:44,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:50:44,998 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2023-12-19 21:50:44,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 21:50:44,998 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 36 [2023-12-19 21:50:44,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:50:44,999 INFO L225 Difference]: With dead ends: 61 [2023-12-19 21:50:44,999 INFO L226 Difference]: Without dead ends: 51 [2023-12-19 21:50:44,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 90.4s TimeCoverageRelationStatistics Valid=98, Invalid=357, Unknown=19, NotChecked=126, Total=600 [2023-12-19 21:50:45,000 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 151 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 21:50:45,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 158 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 148 Invalid, 0 Unknown, 151 Unchecked, 0.2s Time] [2023-12-19 21:50:45,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-19 21:50:45,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2023-12-19 21:50:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 states have internal predecessors, (39), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-19 21:50:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2023-12-19 21:50:45,026 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 36 [2023-12-19 21:50:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:50:45,026 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2023-12-19 21:50:45,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 21:50:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2023-12-19 21:50:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-19 21:50:45,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:50:45,027 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:50:45,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 21:50:45,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:50:45,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:50:45,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:50:45,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1074423298, now seen corresponding path program 1 times [2023-12-19 21:50:45,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:50:45,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482988637] [2023-12-19 21:50:45,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:50:45,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:50:45,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:50:45,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779905672] [2023-12-19 21:50:45,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:50:45,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:50:45,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:50:45,260 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:50:45,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 21:50:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 21:50:45,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 21:50:45,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:50:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 56 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 21:50:45,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:50:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-19 21:50:45,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:50:45,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482988637] [2023-12-19 21:50:45,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:50:45,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779905672] [2023-12-19 21:50:45,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779905672] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:50:45,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:50:45,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-19 21:50:45,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96279085] [2023-12-19 21:50:45,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:50:45,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 21:50:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:50:45,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 21:50:45,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-19 21:50:45,516 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-12-19 21:50:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:50:45,687 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2023-12-19 21:50:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 21:50:45,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 46 [2023-12-19 21:50:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:50:45,691 INFO L225 Difference]: With dead ends: 125 [2023-12-19 21:50:45,691 INFO L226 Difference]: Without dead ends: 115 [2023-12-19 21:50:45,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2023-12-19 21:50:45,692 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 68 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 21:50:45,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 95 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 21:50:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-19 21:50:45,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2023-12-19 21:50:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 68 states have (on average 1.088235294117647) internal successors, (74), 72 states have internal predecessors, (74), 16 states have call successors, (16), 11 states have call predecessors, (16), 10 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-19 21:50:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2023-12-19 21:50:45,719 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 46 [2023-12-19 21:50:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:50:45,720 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2023-12-19 21:50:45,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-12-19 21:50:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2023-12-19 21:50:45,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-19 21:50:45,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:50:45,725 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:50:45,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-19 21:50:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 21:50:45,930 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:50:45,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:50:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1780901289, now seen corresponding path program 3 times [2023-12-19 21:50:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:50:45,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335528461] [2023-12-19 21:50:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:50:45,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:50:45,946 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:50:45,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944704665] [2023-12-19 21:50:45,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-19 21:50:45,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:50:45,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:50:45,948 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:50:45,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 21:50:49,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-19 21:50:49,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 21:50:49,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-19 21:50:49,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:50:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 14 proven. 60 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-19 21:50:49,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:50:49,572 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 14 proven. 60 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-19 21:50:49,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:50:49,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335528461] [2023-12-19 21:50:49,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:50:49,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944704665] [2023-12-19 21:50:49,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944704665] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:50:49,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:50:49,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2023-12-19 21:50:49,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71538126] [2023-12-19 21:50:49,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:50:49,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-19 21:50:49,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:50:49,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-19 21:50:49,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2023-12-19 21:50:49,579 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand has 22 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 21:50:50,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:50:50,242 INFO L93 Difference]: Finished difference Result 112 states and 129 transitions. [2023-12-19 21:50:50,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 21:50:50,243 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 60 [2023-12-19 21:50:50,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:50:50,243 INFO L225 Difference]: With dead ends: 112 [2023-12-19 21:50:50,243 INFO L226 Difference]: Without dead ends: 101 [2023-12-19 21:50:50,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=268, Invalid=1064, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 21:50:50,244 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 47 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 21:50:50,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 392 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 21:50:50,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-19 21:50:50,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2023-12-19 21:50:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 72 states have (on average 1.0416666666666667) internal successors, (75), 72 states have internal predecessors, (75), 14 states have call successors, (14), 11 states have call predecessors, (14), 10 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 21:50:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2023-12-19 21:50:50,257 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 60 [2023-12-19 21:50:50,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:50:50,257 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2023-12-19 21:50:50,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 21:50:50,258 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2023-12-19 21:50:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 21:50:50,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:50:50,258 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:50:50,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 21:50:50,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:50:50,465 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:50:50,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:50:50,465 INFO L85 PathProgramCache]: Analyzing trace with hash 531722778, now seen corresponding path program 2 times [2023-12-19 21:50:50,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:50:50,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390583475] [2023-12-19 21:50:50,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:50:50,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:50:50,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:50:50,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832996981] [2023-12-19 21:50:50,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-19 21:50:50,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:50:50,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:50:50,493 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:50:50,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 21:50:50,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-19 21:50:50,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 21:50:50,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-19 21:50:50,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:50:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 60 proven. 380 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 21:50:50,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:50:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 21:50:50,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:50:50,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390583475] [2023-12-19 21:50:50,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:50:50,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832996981] [2023-12-19 21:50:50,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832996981] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:50:50,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:50:50,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2023-12-19 21:50:50,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440438416] [2023-12-19 21:50:50,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:50:50,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 21:50:50,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:50:50,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 21:50:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=316, Unknown=0, NotChecked=0, Total=552 [2023-12-19 21:50:50,934 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand has 24 states, 24 states have (on average 4.375) internal successors, (105), 24 states have internal predecessors, (105), 20 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2023-12-19 21:50:51,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:50:51,350 INFO L93 Difference]: Finished difference Result 229 states and 248 transitions. [2023-12-19 21:50:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-19 21:50:51,350 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.375) internal successors, (105), 24 states have internal predecessors, (105), 20 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) Word has length 94 [2023-12-19 21:50:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:50:51,351 INFO L225 Difference]: With dead ends: 229 [2023-12-19 21:50:51,351 INFO L226 Difference]: Without dead ends: 219 [2023-12-19 21:50:51,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 162 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=665, Invalid=1141, Unknown=0, NotChecked=0, Total=1806 [2023-12-19 21:50:51,353 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 138 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 21:50:51,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 159 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 21:50:51,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-19 21:50:51,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 179. [2023-12-19 21:50:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 128 states have (on average 1.078125) internal successors, (138), 136 states have internal predecessors, (138), 30 states have call successors, (30), 21 states have call predecessors, (30), 20 states have return successors, (29), 21 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-19 21:50:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 197 transitions. [2023-12-19 21:50:51,374 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 197 transitions. Word has length 94 [2023-12-19 21:50:51,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:50:51,374 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 197 transitions. [2023-12-19 21:50:51,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.375) internal successors, (105), 24 states have internal predecessors, (105), 20 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2023-12-19 21:50:51,375 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 197 transitions. [2023-12-19 21:50:51,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 21:50:51,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:50:51,375 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:50:51,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-19 21:50:51,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 21:50:51,580 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:50:51,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:50:51,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1207636339, now seen corresponding path program 4 times [2023-12-19 21:50:51,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:50:51,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982069144] [2023-12-19 21:50:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:50:51,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:50:51,597 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:50:51,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403247332] [2023-12-19 21:50:51,597 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-19 21:50:51,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:50:51,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:50:51,604 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:50:51,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 21:50:51,659 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-19 21:50:51,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 21:50:51,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-19 21:50:51,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 21:50:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 26 proven. 264 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-19 21:50:51,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 21:50:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 26 proven. 264 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-19 21:50:52,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 21:50:52,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982069144] [2023-12-19 21:50:52,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 21:50:52,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403247332] [2023-12-19 21:50:52,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403247332] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 21:50:52,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 21:50:52,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-12-19 21:50:52,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345960651] [2023-12-19 21:50:52,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 21:50:52,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-19 21:50:52,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 21:50:52,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-19 21:50:52,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2023-12-19 21:50:52,420 INFO L87 Difference]: Start difference. First operand 179 states and 197 transitions. Second operand has 32 states, 30 states have (on average 2.8) internal successors, (84), 30 states have internal predecessors, (84), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 21:50:53,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 21:50:53,259 INFO L93 Difference]: Finished difference Result 186 states and 204 transitions. [2023-12-19 21:50:53,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 21:50:53,259 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 2.8) internal successors, (84), 30 states have internal predecessors, (84), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 108 [2023-12-19 21:50:53,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 21:50:53,260 INFO L225 Difference]: With dead ends: 186 [2023-12-19 21:50:53,260 INFO L226 Difference]: Without dead ends: 171 [2023-12-19 21:50:53,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=424, Invalid=1738, Unknown=0, NotChecked=0, Total=2162 [2023-12-19 21:50:53,261 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 37 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 21:50:53,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 824 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 21:50:53,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-19 21:50:53,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-12-19 21:50:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 128 states have (on average 1.0078125) internal successors, (129), 128 states have internal predecessors, (129), 22 states have call successors, (22), 21 states have call predecessors, (22), 20 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-19 21:50:53,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 172 transitions. [2023-12-19 21:50:53,279 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 172 transitions. Word has length 108 [2023-12-19 21:50:53,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 21:50:53,280 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 172 transitions. [2023-12-19 21:50:53,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 2.8) internal successors, (84), 30 states have internal predecessors, (84), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 21:50:53,280 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 172 transitions. [2023-12-19 21:50:53,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-19 21:50:53,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 21:50:53,281 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 21:50:53,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 21:50:53,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 21:50:53,484 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 21:50:53,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 21:50:53,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1950814110, now seen corresponding path program 3 times [2023-12-19 21:50:53,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 21:50:53,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942807032] [2023-12-19 21:50:53,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 21:50:53,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 21:50:53,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 21:50:53,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089304481] [2023-12-19 21:50:53,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-19 21:50:53,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 21:50:53,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 21:50:53,497 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 21:50:53,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Received shutdown request... [2023-12-19 22:00:33,371 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 22:00:33,371 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 22:00:34,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-19 22:00:34,572 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forcibly destroying the process [2023-12-19 22:00:34,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 137 [2023-12-19 22:00:34,586 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-19 22:00:34,589 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 22:00:34,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 22:00:34,589 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 175 with TraceHistMax 22,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-19 22:00:34,592 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1] [2023-12-19 22:00:34,593 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 22:00:34,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:00:34 BoogieIcfgContainer [2023-12-19 22:00:34,595 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 22:00:34,595 INFO L158 Benchmark]: Toolchain (without parser) took 890110.34ms. Allocated memory is still 273.7MB. Free memory was 236.9MB in the beginning and 87.7MB in the end (delta: 149.3MB). Peak memory consumption was 150.4MB. Max. memory is 8.0GB. [2023-12-19 22:00:34,595 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 184.5MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 22:00:34,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.41ms. Allocated memory is still 273.7MB. Free memory was 236.5MB in the beginning and 225.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-19 22:00:34,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.62ms. Allocated memory is still 273.7MB. Free memory was 225.6MB in the beginning and 223.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 22:00:34,596 INFO L158 Benchmark]: Boogie Preprocessor took 35.56ms. Allocated memory is still 273.7MB. Free memory was 223.9MB in the beginning and 222.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-19 22:00:34,596 INFO L158 Benchmark]: RCFGBuilder took 380.86ms. Allocated memory is still 273.7MB. Free memory was 222.4MB in the beginning and 211.3MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-19 22:00:34,608 INFO L158 Benchmark]: TraceAbstraction took 889448.32ms. Allocated memory is still 273.7MB. Free memory was 210.9MB in the beginning and 87.7MB in the end (delta: 123.2MB). Peak memory consumption was 124.2MB. Max. memory is 8.0GB. [2023-12-19 22:00:34,609 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 184.5MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 207.41ms. Allocated memory is still 273.7MB. Free memory was 236.5MB in the beginning and 225.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.62ms. Allocated memory is still 273.7MB. Free memory was 225.6MB in the beginning and 223.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.56ms. Allocated memory is still 273.7MB. Free memory was 223.9MB in the beginning and 222.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 380.86ms. Allocated memory is still 273.7MB. Free memory was 222.4MB in the beginning and 211.3MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 889448.32ms. Allocated memory is still 273.7MB. Free memory was 210.9MB in the beginning and 87.7MB in the end (delta: 123.2MB). Peak memory consumption was 124.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 12]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 12). Cancelled while NwaCegarLoop was analyzing trace of length 175 with TraceHistMax 22,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 889.4s, OverallIterations: 12, TraceHistogramMax: 22, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 25.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 375 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 367 mSDsluCounter, 2010 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 267 IncrementalHoareTripleChecker+Unchecked, 1780 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1218 IncrementalHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 230 mSDtfsCounter, 1218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 899 GetRequests, 683 SyntacticMatches, 8 SemanticMatches, 208 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 112.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=10, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 76 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 276.6s InterpolantComputationTime, 440 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 819 ConstructedInterpolants, 6 QuantifiedInterpolants, 4302 SizeOfPredicates, 37 NumberOfNonLiveVariables, 1284 ConjunctsInSsa, 207 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 1345/2718 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown