/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/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 10:41:03,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 10:41:03,398 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 10:41:03,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 10:41:03,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 10:41:03,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 10:41:03,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 10:41:03,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 10:41:03,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 10:41:03,430 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 10:41:03,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 10:41:03,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 10:41:03,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 10:41:03,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 10:41:03,432 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 10:41:03,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 10:41:03,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 10:41:03,433 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 10:41:03,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 10:41:03,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 10:41:03,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 10:41:03,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 10:41:03,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 10:41:03,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 10:41:03,435 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 10:41:03,436 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 10:41:03,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 10:41:03,436 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 10:41:03,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 10:41:03,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 10:41:03,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 10:41:03,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 10:41:03,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:41:03,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 10:41:03,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 10:41:03,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 10:41:03,438 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 10:41:03,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 10:41:03,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 10:41:03,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 10:41:03,439 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 10:41:03,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 10:41:03,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 10:41:03,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 10:41:03,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 10:41:03,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 10:41:03,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 10:41:03,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 10:41:03,679 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 10:41:03,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i [2023-12-19 10:41:04,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 10:41:04,851 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 10:41:04,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i [2023-12-19 10:41:04,859 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18f0bb155/34fc3ffff1f94fdf89058744a51db209/FLAG2f66acee9 [2023-12-19 10:41:04,869 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18f0bb155/34fc3ffff1f94fdf89058744a51db209 [2023-12-19 10:41:04,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 10:41:04,879 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 10:41:04,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 10:41:04,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 10:41:04,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 10:41:04,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:41:04" (1/1) ... [2023-12-19 10:41:04,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3f5af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:04, skipping insertion in model container [2023-12-19 10:41:04,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:41:04" (1/1) ... [2023-12-19 10:41:04,907 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 10:41:05,017 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i[916,929] [2023-12-19 10:41:05,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:41:05,070 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 10:41:05,078 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i[916,929] [2023-12-19 10:41:05,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:41:05,109 INFO L206 MainTranslator]: Completed translation [2023-12-19 10:41:05,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05 WrapperNode [2023-12-19 10:41:05,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 10:41:05,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 10:41:05,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 10:41:05,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 10:41:05,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,149 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2023-12-19 10:41:05,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 10:41:05,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 10:41:05,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 10:41:05,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 10:41:05,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,160 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,173 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 10:41:05,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 10:41:05,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 10:41:05,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 10:41:05,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 10:41:05,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (1/1) ... [2023-12-19 10:41:05,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:41:05,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:41:05,236 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 10:41:05,270 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 10:41:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 10:41:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 10:41:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 10:41:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 10:41:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 10:41:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 10:41:05,360 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 10:41:05,362 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 10:41:05,580 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 10:41:05,618 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 10:41:05,618 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 10:41:05,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:41:05 BoogieIcfgContainer [2023-12-19 10:41:05,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 10:41:05,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 10:41:05,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 10:41:05,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 10:41:05,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:41:04" (1/3) ... [2023-12-19 10:41:05,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f99f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:41:05, skipping insertion in model container [2023-12-19 10:41:05,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:41:05" (2/3) ... [2023-12-19 10:41:05,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f99f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:41:05, skipping insertion in model container [2023-12-19 10:41:05,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:41:05" (3/3) ... [2023-12-19 10:41:05,628 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-12.i [2023-12-19 10:41:05,642 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 10:41:05,642 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 10:41:05,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 10:41:05,696 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;@78342cbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 10:41:05,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 10:41:05,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 10:41:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 10:41:05,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:41:05,710 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:41:05,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:41:05,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:41:05,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1694065204, now seen corresponding path program 1 times [2023-12-19 10:41:05,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:41:05,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851803873] [2023-12-19 10:41:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:41:05,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:41:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:41:05,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:41:05,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851803873] [2023-12-19 10:41:05,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 10:41:05,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75216066] [2023-12-19 10:41:05,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:41:05,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:41:05,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:41:05,938 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 10:41:05,946 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 10:41:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:41:06,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 10:41:06,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:41:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-19 10:41:06,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:41:06,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75216066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:41:06,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:41:06,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:41:06,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614775829] [2023-12-19 10:41:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:41:06,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 10:41:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:41:06,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 10:41:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:41:06,165 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 10:41:06,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:41:06,206 INFO L93 Difference]: Finished difference Result 85 states and 148 transitions. [2023-12-19 10:41:06,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 10:41:06,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2023-12-19 10:41:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:41:06,215 INFO L225 Difference]: With dead ends: 85 [2023-12-19 10:41:06,215 INFO L226 Difference]: Without dead ends: 41 [2023-12-19 10:41:06,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 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 10:41:06,222 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:41:06,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:41:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-19 10:41:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-19 10:41:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 10:41:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2023-12-19 10:41:06,258 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 98 [2023-12-19 10:41:06,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:41:06,258 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2023-12-19 10:41:06,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 10:41:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2023-12-19 10:41:06,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 10:41:06,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:41:06,262 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:41:06,268 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 10:41:06,462 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 10:41:06,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:41:06,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:41:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash -695827916, now seen corresponding path program 1 times [2023-12-19 10:41:06,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:41:06,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642326265] [2023-12-19 10:41:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:41:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:41:06,494 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:41:06,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398866265] [2023-12-19 10:41:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:41:06,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:41:06,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:41:06,508 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 10:41:06,509 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 10:41:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:41:06,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-19 10:41:06,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:42:08,962 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-19 10:42:08,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:43:00,828 WARN L293 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 124 DAG size of output: 85 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:43:06,774 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 10:43:06,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:43:06,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642326265] [2023-12-19 10:43:06,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:43:06,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398866265] [2023-12-19 10:43:06,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398866265] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:43:06,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:43:06,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-12-19 10:43:06,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093894339] [2023-12-19 10:43:06,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:43:06,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 10:43:06,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:43:06,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 10:43:06,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-19 10:43:06,778 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:43:19,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:43:19,115 INFO L93 Difference]: Finished difference Result 95 states and 129 transitions. [2023-12-19 10:43:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 10:43:19,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2023-12-19 10:43:19,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:43:19,117 INFO L225 Difference]: With dead ends: 95 [2023-12-19 10:43:19,117 INFO L226 Difference]: Without dead ends: 93 [2023-12-19 10:43:19,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-19 10:43:19,118 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 83 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-19 10:43:19,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 247 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-19 10:43:19,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-19 10:43:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 69. [2023-12-19 10:43:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 43 states have internal predecessors, (49), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 10:43:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2023-12-19 10:43:19,137 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 98 [2023-12-19 10:43:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:43:19,138 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions. [2023-12-19 10:43:19,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:43:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2023-12-19 10:43:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 10:43:19,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:43:19,139 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:43:19,147 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 10:43:19,339 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 10:43:19,340 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:43:19,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:43:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1505174542, now seen corresponding path program 1 times [2023-12-19 10:43:19,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:43:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163042663] [2023-12-19 10:43:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:43:19,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:43:19,358 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:43:19,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586235178] [2023-12-19 10:43:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:43:19,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:43:19,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:43:19,360 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 10:43:19,362 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 10:43:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:43:19,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-19 10:43:19,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:43:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-19 10:43:47,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:44:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 10:44:39,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:44:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163042663] [2023-12-19 10:44:39,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:44:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586235178] [2023-12-19 10:44:39,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586235178] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:44:39,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:44:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-19 10:44:39,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830884179] [2023-12-19 10:44:39,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:44:39,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:44:39,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:44:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:44:39,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-12-19 10:44:39,947 INFO L87 Difference]: Start difference. First operand 69 states and 97 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:44:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:44:42,582 INFO L93 Difference]: Finished difference Result 80 states and 107 transitions. [2023-12-19 10:44:42,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 10:44:42,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2023-12-19 10:44:42,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:44:42,599 INFO L225 Difference]: With dead ends: 80 [2023-12-19 10:44:42,599 INFO L226 Difference]: Without dead ends: 78 [2023-12-19 10:44:42,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2023-12-19 10:44:42,600 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 25 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 10:44:42,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 292 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 10:44:42,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-19 10:44:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2023-12-19 10:44:42,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 47 states have internal predecessors, (53), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 10:44:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2023-12-19 10:44:42,614 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 98 [2023-12-19 10:44:42,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:44:42,614 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2023-12-19 10:44:42,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:44:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2023-12-19 10:44:42,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 10:44:42,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:44:42,616 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:44:42,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 10:44:42,816 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 10:44:42,817 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:44:42,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:44:42,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1176034001, now seen corresponding path program 1 times [2023-12-19 10:44:42,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:44:42,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887332950] [2023-12-19 10:44:42,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:44:42,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:44:42,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:44:42,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139676593] [2023-12-19 10:44:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:44:42,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:44:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:44:42,842 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 10:44:42,843 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 10:44:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:44:42,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-19 10:44:42,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:45:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-19 10:45:34,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:46:16,987 WARN L293 SmtUtils]: Spent 8.70s on a formula simplification. DAG size of input: 125 DAG size of output: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:46:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 10:46:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:46:31,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887332950] [2023-12-19 10:46:31,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:46:31,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139676593] [2023-12-19 10:46:31,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139676593] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:46:31,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:46:31,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-19 10:46:31,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083237304] [2023-12-19 10:46:31,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:46:31,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:46:31,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:46:31,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:46:31,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-19 10:46:31,111 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:46:43,154 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 125 DAG size of output: 121 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:46:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:46:48,960 INFO L93 Difference]: Finished difference Result 113 states and 150 transitions. [2023-12-19 10:46:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 10:46:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 10:46:48,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:46:48,963 INFO L225 Difference]: With dead ends: 113 [2023-12-19 10:46:48,963 INFO L226 Difference]: Without dead ends: 111 [2023-12-19 10:46:48,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-19 10:46:48,964 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 65 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-19 10:46:48,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 211 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-19 10:46:48,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-19 10:46:48,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 88. [2023-12-19 10:46:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.125) internal successors, (63), 58 states have internal predecessors, (63), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 10:46:48,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2023-12-19 10:46:48,986 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 99 [2023-12-19 10:46:48,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:46:48,987 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2023-12-19 10:46:48,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:46:48,987 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2023-12-19 10:46:48,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 10:46:48,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:46:48,988 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:46:48,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 10:46:49,189 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 10:46:49,190 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:46:49,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:46:49,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1233292303, now seen corresponding path program 1 times [2023-12-19 10:46:49,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:46:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641714171] [2023-12-19 10:46:49,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:46:49,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:46:49,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:46:49,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237509382] [2023-12-19 10:46:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:46:49,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:46:49,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:46:49,207 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 10:46:49,210 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 10:46:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:46:49,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-19 10:46:49,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:47:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-19 10:47:17,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:48:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 10:48:08,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:48:08,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641714171] [2023-12-19 10:48:08,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:48:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237509382] [2023-12-19 10:48:08,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237509382] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:48:08,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:48:08,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-19 10:48:08,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926333322] [2023-12-19 10:48:08,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:48:08,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:48:08,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:48:08,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:48:08,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-19 10:48:08,470 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:48:20,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:48:20,352 INFO L93 Difference]: Finished difference Result 109 states and 144 transitions. [2023-12-19 10:48:20,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 10:48:20,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 10:48:20,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:48:20,354 INFO L225 Difference]: With dead ends: 109 [2023-12-19 10:48:20,354 INFO L226 Difference]: Without dead ends: 107 [2023-12-19 10:48:20,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-19 10:48:20,355 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 66 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-19 10:48:20,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 240 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-19 10:48:20,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-19 10:48:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 102. [2023-12-19 10:48:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.0952380952380953) internal successors, (69), 66 states have internal predecessors, (69), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 10:48:20,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 137 transitions. [2023-12-19 10:48:20,380 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 137 transitions. Word has length 99 [2023-12-19 10:48:20,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:48:20,380 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 137 transitions. [2023-12-19 10:48:20,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:48:20,381 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 137 transitions. [2023-12-19 10:48:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 10:48:20,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:48:20,382 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:48:20,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 10:48:20,588 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 10:48:20,588 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:48:20,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:48:20,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1856092371, now seen corresponding path program 1 times [2023-12-19 10:48:20,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:48:20,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179396007] [2023-12-19 10:48:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:48:20,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:48:20,603 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:48:20,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423643854] [2023-12-19 10:48:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:48:20,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:48:20,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:48:20,605 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 10:48:20,607 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 10:48:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:48:20,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-19 10:48:20,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:49:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-19 10:49:37,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:53:33,202 WARN L293 SmtUtils]: Spent 43.04s on a formula simplification. DAG size of input: 2949 DAG size of output: 1022 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:54:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 10:54:19,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:54:19,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179396007] [2023-12-19 10:54:19,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:54:19,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423643854] [2023-12-19 10:54:19,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423643854] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:54:19,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:54:19,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-12-19 10:54:19,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042534290] [2023-12-19 10:54:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:54:19,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 10:54:19,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:54:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 10:54:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-12-19 10:54:19,522 INFO L87 Difference]: Start difference. First operand 102 states and 137 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:54:48,285 WARN L293 SmtUtils]: Spent 21.60s on a formula simplification. DAG size of input: 1058 DAG size of output: 1039 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:54:58,367 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 1025 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:55:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:55:00,114 INFO L93 Difference]: Finished difference Result 110 states and 145 transitions. [2023-12-19 10:55:00,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 10:55:00,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 10:55:00,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:55:00,117 INFO L225 Difference]: With dead ends: 110 [2023-12-19 10:55:00,117 INFO L226 Difference]: Without dead ends: 108 [2023-12-19 10:55:00,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 82.3s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2023-12-19 10:55:00,120 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 33 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:55:00,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 330 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-19 10:55:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-19 10:55:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2023-12-19 10:55:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.0952380952380953) internal successors, (69), 66 states have internal predecessors, (69), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 10:55:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 137 transitions. [2023-12-19 10:55:00,175 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 137 transitions. Word has length 99 [2023-12-19 10:55:00,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:55:00,175 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 137 transitions. [2023-12-19 10:55:00,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 10:55:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 137 transitions. [2023-12-19 10:55:00,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 10:55:00,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:55:00,177 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:55:00,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 10:55:00,382 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 10:55:00,382 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:55:00,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:55:00,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1913350673, now seen corresponding path program 1 times [2023-12-19 10:55:00,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:55:00,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009555596] [2023-12-19 10:55:00,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:55:00,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:55:00,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:55:00,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030108691] [2023-12-19 10:55:00,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:55:00,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:55:00,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:55:00,400 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 10:55:00,401 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 10:55:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:00,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-19 10:55:00,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:55:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-19 10:55:14,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-19 10:55:32,218 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 10:55:32,235 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 10:55:32,235 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 10:55:32,236 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 10:55:32,426 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 10:55:32,426 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 100 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-2-3-4-3-4-3-4-3-4-3-4-3-2-2-2-2-2-1 context. [2023-12-19 10:55:32,432 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:55:32,434 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 10:55:32,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:55:32 BoogieIcfgContainer [2023-12-19 10:55:32,435 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 10:55:32,436 INFO L158 Benchmark]: Toolchain (without parser) took 867556.90ms. Allocated memory was 207.6MB in the beginning and 940.6MB in the end (delta: 733.0MB). Free memory was 166.7MB in the beginning and 521.2MB in the end (delta: -354.5MB). Peak memory consumption was 568.1MB. Max. memory is 8.0GB. [2023-12-19 10:55:32,436 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 207.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 10:55:32,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.21ms. Allocated memory is still 207.6MB. Free memory was 166.5MB in the beginning and 153.5MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-19 10:55:32,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.93ms. Allocated memory is still 207.6MB. Free memory was 153.1MB in the beginning and 150.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 10:55:32,437 INFO L158 Benchmark]: Boogie Preprocessor took 35.79ms. Allocated memory is still 207.6MB. Free memory was 150.0MB in the beginning and 144.5MB in the end (delta: 5.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 10:55:32,437 INFO L158 Benchmark]: RCFGBuilder took 434.43ms. Allocated memory is still 207.6MB. Free memory was 144.5MB in the beginning and 124.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 10:55:32,437 INFO L158 Benchmark]: TraceAbstraction took 866812.93ms. Allocated memory was 207.6MB in the beginning and 940.6MB in the end (delta: 733.0MB). Free memory was 123.8MB in the beginning and 521.2MB in the end (delta: -397.4MB). Peak memory consumption was 525.2MB. Max. memory is 8.0GB. [2023-12-19 10:55:32,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 207.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 230.21ms. Allocated memory is still 207.6MB. Free memory was 166.5MB in the beginning and 153.5MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.93ms. Allocated memory is still 207.6MB. Free memory was 153.1MB in the beginning and 150.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.79ms. Allocated memory is still 207.6MB. Free memory was 150.0MB in the beginning and 144.5MB in the end (delta: 5.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 434.43ms. Allocated memory is still 207.6MB. Free memory was 144.5MB in the beginning and 124.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 866812.93ms. Allocated memory was 207.6MB in the beginning and 940.6MB in the end (delta: 733.0MB). Free memory was 123.8MB in the beginning and 521.2MB in the end (delta: -397.4MB). Peak memory consumption was 525.2MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 100 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-15-2-3-4-3-4-3-4-3-4-3-4-3-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866.8s, OverallIterations: 7, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 85.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 272 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 272 mSDsluCounter, 1376 SdHoareTripleChecker+Invalid, 16.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 990 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 620 IncrementalHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 386 mSDtfsCounter, 620 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1099 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 141.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=5, InterpolantAutomatonStates: 60, 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, 6 MinimizatonAttempts, 63 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 747.0s InterpolantComputationTime, 689 NumberOfCodeBlocks, 689 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1073 ConstructedInterpolants, 5 QuantifiedInterpolants, 26870 SizeOfPredicates, 117 NumberOfNonLiveVariables, 1375 ConjunctsInSsa, 128 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 5115/5280 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