/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:40:08,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:40:08,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:40:08,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:40:08,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:40:08,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:40:08,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:40:08,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:40:08,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:40:08,148 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:40:08,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:40:08,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:40:08,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:40:08,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:40:08,154 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:40:08,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:40:08,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:40:08,155 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:40:08,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:40:08,156 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:40:08,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:40:08,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:40:08,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:40:08,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:40:08,157 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:40:08,157 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:40:08,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:40:08,158 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:40:08,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:40:08,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:40:08,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:40:08,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:40:08,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:40:08,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:40:08,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:40:08,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:40:08,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:40:08,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:40:08,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:40:08,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:40:08,162 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:40:08,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:40:08,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:40:08,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:40:08,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:40:08,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:40:08,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:40:08,434 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:40:08,434 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:40:08,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i [2023-12-16 03:40:09,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:40:09,821 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:40:09,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i [2023-12-16 03:40:09,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcca49d10/56920a1fb3d44531907027738f7b2045/FLAG674ed145c [2023-12-16 03:40:09,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcca49d10/56920a1fb3d44531907027738f7b2045 [2023-12-16 03:40:09,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:40:09,845 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:40:09,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:40:09,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:40:09,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:40:09,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:40:09" (1/1) ... [2023-12-16 03:40:09,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63658852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:09, skipping insertion in model container [2023-12-16 03:40:09,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:40:09" (1/1) ... [2023-12-16 03:40:09,892 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:40:10,019 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_loopvsstraightlinecode_100-1loop_file-88.i[916,929] [2023-12-16 03:40:10,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:40:10,123 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:40:10,132 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_loopvsstraightlinecode_100-1loop_file-88.i[916,929] [2023-12-16 03:40:10,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:40:10,199 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:40:10,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10 WrapperNode [2023-12-16 03:40:10,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:40:10,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:40:10,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:40:10,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:40:10,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,268 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 258 [2023-12-16 03:40:10,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:40:10,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:40:10,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:40:10,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:40:10,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,308 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]. [2023-12-16 03:40:10,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:40:10,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:40:10,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:40:10,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:40:10,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (1/1) ... [2023-12-16 03:40:10,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:40:10,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:10,369 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) [2023-12-16 03:40:10,395 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 [2023-12-16 03:40:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:40:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:40:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:40:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:40:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:40:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:40:10,488 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:40:10,490 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:40:10,939 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:40:10,976 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:40:10,977 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:40:10,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:40:10 BoogieIcfgContainer [2023-12-16 03:40:10,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:40:10,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:40:10,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:40:10,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:40:10,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:40:09" (1/3) ... [2023-12-16 03:40:10,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b91a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:40:10, skipping insertion in model container [2023-12-16 03:40:10,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:10" (2/3) ... [2023-12-16 03:40:10,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b91a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:40:10, skipping insertion in model container [2023-12-16 03:40:10,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:40:10" (3/3) ... [2023-12-16 03:40:10,985 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-88.i [2023-12-16 03:40:11,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:40:11,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:40:11,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:40:11,055 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;@3ade9de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:40:11,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:40:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 03:40:11,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 03:40:11,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:11,080 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2023-12-16 03:40:11,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:11,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:11,084 INFO L85 PathProgramCache]: Analyzing trace with hash -787262087, now seen corresponding path program 1 times [2023-12-16 03:40:11,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:11,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139714134] [2023-12-16 03:40:11,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:11,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:11,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:11,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139714134] [2023-12-16 03:40:11,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:40:11,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497260578] [2023-12-16 03:40:11,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:11,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:11,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:11,351 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) [2023-12-16 03:40:11,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:40:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:11,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:40:11,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:11,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2023-12-16 03:40:11,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:11,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497260578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:11,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:11,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:40:11,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72735931] [2023-12-16 03:40:11,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:11,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:40:11,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:40:11,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:40:11,671 INFO L87 Difference]: Start difference. First operand has 94 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 03:40:11,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:11,725 INFO L93 Difference]: Finished difference Result 187 states and 323 transitions. [2023-12-16 03:40:11,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:40:11,727 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 185 [2023-12-16 03:40:11,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:11,735 INFO L225 Difference]: With dead ends: 187 [2023-12-16 03:40:11,735 INFO L226 Difference]: Without dead ends: 92 [2023-12-16 03:40:11,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:40:11,745 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:11,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:40:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-16 03:40:11,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-12-16 03:40:11,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 03:40:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 143 transitions. [2023-12-16 03:40:11,804 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 143 transitions. Word has length 185 [2023-12-16 03:40:11,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:11,805 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 143 transitions. [2023-12-16 03:40:11,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 03:40:11,805 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 143 transitions. [2023-12-16 03:40:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 03:40:11,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:11,809 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2023-12-16 03:40:11,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 03:40:12,012 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 [2023-12-16 03:40:12,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:12,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:12,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1005692673, now seen corresponding path program 1 times [2023-12-16 03:40:12,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:12,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352269456] [2023-12-16 03:40:12,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:12,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:12,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:12,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763433427] [2023-12-16 03:40:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:12,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:12,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:12,102 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) [2023-12-16 03:40:12,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:40:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:12,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 03:40:12,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:12,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:12,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:12,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352269456] [2023-12-16 03:40:12,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:12,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763433427] [2023-12-16 03:40:12,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763433427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:12,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:12,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:40:12,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552810944] [2023-12-16 03:40:12,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:12,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:40:12,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:12,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:40:12,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:40:12,417 INFO L87 Difference]: Start difference. First operand 92 states and 143 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:12,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:12,504 INFO L93 Difference]: Finished difference Result 187 states and 290 transitions. [2023-12-16 03:40:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 03:40:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 185 [2023-12-16 03:40:12,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:12,511 INFO L225 Difference]: With dead ends: 187 [2023-12-16 03:40:12,511 INFO L226 Difference]: Without dead ends: 96 [2023-12-16 03:40:12,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:40:12,515 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 3 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:12,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 405 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:40:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-16 03:40:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2023-12-16 03:40:12,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 64 states have (on average 1.390625) internal successors, (89), 64 states have internal predecessors, (89), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 03:40:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 145 transitions. [2023-12-16 03:40:12,538 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 145 transitions. Word has length 185 [2023-12-16 03:40:12,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:12,540 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 145 transitions. [2023-12-16 03:40:12,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 145 transitions. [2023-12-16 03:40:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 03:40:12,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:12,547 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2023-12-16 03:40:12,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:12,755 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 [2023-12-16 03:40:12,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:12,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:12,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1005752255, now seen corresponding path program 1 times [2023-12-16 03:40:12,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:12,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438938070] [2023-12-16 03:40:12,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:12,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666808617] [2023-12-16 03:40:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:12,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:12,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:12,832 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) [2023-12-16 03:40:12,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:40:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:12,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:40:13,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:15,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:15,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:15,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438938070] [2023-12-16 03:40:15,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:15,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666808617] [2023-12-16 03:40:15,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666808617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:15,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:15,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 03:40:15,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435263385] [2023-12-16 03:40:15,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:15,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 03:40:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:15,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 03:40:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:40:15,976 INFO L87 Difference]: Start difference. First operand 94 states and 145 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:16,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:16,658 INFO L93 Difference]: Finished difference Result 427 states and 655 transitions. [2023-12-16 03:40:16,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 03:40:16,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 185 [2023-12-16 03:40:16,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:16,665 INFO L225 Difference]: With dead ends: 427 [2023-12-16 03:40:16,665 INFO L226 Difference]: Without dead ends: 334 [2023-12-16 03:40:16,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-16 03:40:16,668 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 356 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:16,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 855 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 03:40:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-16 03:40:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 188. [2023-12-16 03:40:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 129 states have (on average 1.372093023255814) internal successors, (177), 129 states have internal predecessors, (177), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 03:40:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 289 transitions. [2023-12-16 03:40:16,727 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 289 transitions. Word has length 185 [2023-12-16 03:40:16,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:16,727 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 289 transitions. [2023-12-16 03:40:16,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:16,728 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 289 transitions. [2023-12-16 03:40:16,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 03:40:16,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:16,730 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2023-12-16 03:40:16,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:16,937 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 [2023-12-16 03:40:16,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:16,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:16,938 INFO L85 PathProgramCache]: Analyzing trace with hash 418946241, now seen corresponding path program 1 times [2023-12-16 03:40:16,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:16,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750795256] [2023-12-16 03:40:16,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:16,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:16,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:16,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101920843] [2023-12-16 03:40:16,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:16,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:16,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:16,989 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) [2023-12-16 03:40:17,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:40:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:17,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:40:17,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:17,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:17,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:17,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750795256] [2023-12-16 03:40:17,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:17,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101920843] [2023-12-16 03:40:17,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101920843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:17,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:17,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:40:17,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168605140] [2023-12-16 03:40:17,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:17,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:40:17,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:17,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:40:17,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:40:17,549 INFO L87 Difference]: Start difference. First operand 188 states and 289 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:17,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:17,615 INFO L93 Difference]: Finished difference Result 472 states and 724 transitions. [2023-12-16 03:40:17,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:40:17,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 185 [2023-12-16 03:40:17,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:17,619 INFO L225 Difference]: With dead ends: 472 [2023-12-16 03:40:17,619 INFO L226 Difference]: Without dead ends: 285 [2023-12-16 03:40:17,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:40:17,623 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 106 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:17,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 265 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:40:17,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-16 03:40:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 282. [2023-12-16 03:40:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 194 states have (on average 1.3556701030927836) internal successors, (263), 194 states have internal predecessors, (263), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-16 03:40:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 431 transitions. [2023-12-16 03:40:17,673 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 431 transitions. Word has length 185 [2023-12-16 03:40:17,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:17,674 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 431 transitions. [2023-12-16 03:40:17,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:17,675 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 431 transitions. [2023-12-16 03:40:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 03:40:17,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:17,677 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2023-12-16 03:40:17,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:17,888 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 [2023-12-16 03:40:17,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:17,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash 69168845, now seen corresponding path program 1 times [2023-12-16 03:40:17,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:17,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488963719] [2023-12-16 03:40:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:17,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:17,919 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:17,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739395495] [2023-12-16 03:40:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:17,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:17,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:17,925 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) [2023-12-16 03:40:17,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 03:40:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:18,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:40:18,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:18,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:18,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:18,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488963719] [2023-12-16 03:40:18,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:18,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739395495] [2023-12-16 03:40:18,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739395495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:18,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:18,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:40:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439452909] [2023-12-16 03:40:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:18,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 03:40:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 03:40:18,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:40:18,498 INFO L87 Difference]: Start difference. First operand 282 states and 431 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:18,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:18,703 INFO L93 Difference]: Finished difference Result 719 states and 1094 transitions. [2023-12-16 03:40:18,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 03:40:18,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 186 [2023-12-16 03:40:18,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:18,707 INFO L225 Difference]: With dead ends: 719 [2023-12-16 03:40:18,707 INFO L226 Difference]: Without dead ends: 438 [2023-12-16 03:40:18,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:40:18,708 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 151 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:18,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 476 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:40:18,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-16 03:40:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 336. [2023-12-16 03:40:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 219 states have (on average 1.3242009132420092) internal successors, (290), 219 states have internal predecessors, (290), 112 states have call successors, (112), 4 states have call predecessors, (112), 4 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-16 03:40:18,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 514 transitions. [2023-12-16 03:40:18,772 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 514 transitions. Word has length 186 [2023-12-16 03:40:18,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:18,774 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 514 transitions. [2023-12-16 03:40:18,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 514 transitions. [2023-12-16 03:40:18,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 03:40:18,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:18,776 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2023-12-16 03:40:18,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:18,984 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 [2023-12-16 03:40:18,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:18,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:18,985 INFO L85 PathProgramCache]: Analyzing trace with hash -71379765, now seen corresponding path program 1 times [2023-12-16 03:40:18,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:18,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232225468] [2023-12-16 03:40:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:18,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:19,013 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:19,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499437994] [2023-12-16 03:40:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:19,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:19,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:19,015 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) [2023-12-16 03:40:19,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 03:40:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:19,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 03:40:19,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:19,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:19,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:19,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232225468] [2023-12-16 03:40:19,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:19,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499437994] [2023-12-16 03:40:19,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499437994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:19,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:19,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:40:19,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61540189] [2023-12-16 03:40:19,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:19,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 03:40:19,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:19,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 03:40:19,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:40:19,916 INFO L87 Difference]: Start difference. First operand 336 states and 514 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:20,156 INFO L93 Difference]: Finished difference Result 719 states and 1093 transitions. [2023-12-16 03:40:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 03:40:20,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 186 [2023-12-16 03:40:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:20,159 INFO L225 Difference]: With dead ends: 719 [2023-12-16 03:40:20,159 INFO L226 Difference]: Without dead ends: 438 [2023-12-16 03:40:20,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:40:20,161 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 102 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:20,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 445 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 03:40:20,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-16 03:40:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 343. [2023-12-16 03:40:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 226 states have (on average 1.323008849557522) internal successors, (299), 226 states have internal predecessors, (299), 112 states have call successors, (112), 4 states have call predecessors, (112), 4 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-16 03:40:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 523 transitions. [2023-12-16 03:40:20,217 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 523 transitions. Word has length 186 [2023-12-16 03:40:20,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:20,220 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 523 transitions. [2023-12-16 03:40:20,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:20,220 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 523 transitions. [2023-12-16 03:40:20,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 03:40:20,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:20,222 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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] [2023-12-16 03:40:20,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:20,430 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 [2023-12-16 03:40:20,430 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:20,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1760323507, now seen corresponding path program 1 times [2023-12-16 03:40:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141081791] [2023-12-16 03:40:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:20,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:20,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997134403] [2023-12-16 03:40:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:20,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:20,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:20,494 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) [2023-12-16 03:40:20,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 03:40:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:20,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 03:40:20,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:21,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:21,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:21,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141081791] [2023-12-16 03:40:21,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:21,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997134403] [2023-12-16 03:40:21,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997134403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:21,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:21,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 03:40:21,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301197283] [2023-12-16 03:40:21,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:21,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 03:40:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 03:40:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:40:21,118 INFO L87 Difference]: Start difference. First operand 343 states and 523 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:21,518 INFO L93 Difference]: Finished difference Result 904 states and 1388 transitions. [2023-12-16 03:40:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 03:40:21,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 186 [2023-12-16 03:40:21,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:21,522 INFO L225 Difference]: With dead ends: 904 [2023-12-16 03:40:21,523 INFO L226 Difference]: Without dead ends: 623 [2023-12-16 03:40:21,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:40:21,525 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 210 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:21,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 589 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 03:40:21,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-16 03:40:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 436. [2023-12-16 03:40:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 290 states have (on average 1.3448275862068966) internal successors, (390), 290 states have internal predecessors, (390), 140 states have call successors, (140), 5 states have call predecessors, (140), 5 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-16 03:40:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 670 transitions. [2023-12-16 03:40:21,592 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 670 transitions. Word has length 186 [2023-12-16 03:40:21,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:21,592 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 670 transitions. [2023-12-16 03:40:21,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 670 transitions. [2023-12-16 03:40:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-16 03:40:21,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:21,595 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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, 1] [2023-12-16 03:40:21,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:21,802 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 [2023-12-16 03:40:21,802 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:21,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:21,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1015237329, now seen corresponding path program 1 times [2023-12-16 03:40:21,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:21,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668632571] [2023-12-16 03:40:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:21,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:21,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:21,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878893326] [2023-12-16 03:40:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:21,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:21,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:21,848 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) [2023-12-16 03:40:21,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 03:40:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:22,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 03:40:22,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 581 proven. 30 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2023-12-16 03:40:22,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:40:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:22,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668632571] [2023-12-16 03:40:22,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:22,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878893326] [2023-12-16 03:40:22,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878893326] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 03:40:22,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 03:40:22,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2023-12-16 03:40:22,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92992859] [2023-12-16 03:40:22,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:22,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:40:22,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:22,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:40:22,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-16 03:40:22,572 INFO L87 Difference]: Start difference. First operand 436 states and 670 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:22,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:22,813 INFO L93 Difference]: Finished difference Result 1156 states and 1778 transitions. [2023-12-16 03:40:22,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 03:40:22,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 187 [2023-12-16 03:40:22,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:22,818 INFO L225 Difference]: With dead ends: 1156 [2023-12-16 03:40:22,818 INFO L226 Difference]: Without dead ends: 782 [2023-12-16 03:40:22,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-16 03:40:22,820 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 215 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:22,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 280 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:40:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2023-12-16 03:40:22,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 778. [2023-12-16 03:40:22,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 516 states have (on average 1.3255813953488371) internal successors, (684), 516 states have internal predecessors, (684), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2023-12-16 03:40:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1188 transitions. [2023-12-16 03:40:22,911 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1188 transitions. Word has length 187 [2023-12-16 03:40:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:22,911 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1188 transitions. [2023-12-16 03:40:22,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1188 transitions. [2023-12-16 03:40:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 03:40:22,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:22,913 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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, 1, 1] [2023-12-16 03:40:22,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-16 03:40:23,123 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 [2023-12-16 03:40:23,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:23,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash 931702116, now seen corresponding path program 1 times [2023-12-16 03:40:23,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:23,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725648966] [2023-12-16 03:40:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:23,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:23,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847087155] [2023-12-16 03:40:23,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:23,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:23,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:23,173 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) [2023-12-16 03:40:23,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 03:40:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:23,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 03:40:23,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:23,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:23,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:23,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725648966] [2023-12-16 03:40:23,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:23,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847087155] [2023-12-16 03:40:23,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847087155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:23,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:23,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:40:23,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597814874] [2023-12-16 03:40:23,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:23,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:40:23,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:23,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:40:23,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:40:23,356 INFO L87 Difference]: Start difference. First operand 778 states and 1188 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:23,445 INFO L93 Difference]: Finished difference Result 1492 states and 2281 transitions. [2023-12-16 03:40:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:40:23,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 188 [2023-12-16 03:40:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:23,450 INFO L225 Difference]: With dead ends: 1492 [2023-12-16 03:40:23,450 INFO L226 Difference]: Without dead ends: 778 [2023-12-16 03:40:23,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:40:23,452 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 18 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:23,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 253 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:40:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2023-12-16 03:40:23,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2023-12-16 03:40:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 516 states have (on average 1.317829457364341) internal successors, (680), 516 states have internal predecessors, (680), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2023-12-16 03:40:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1184 transitions. [2023-12-16 03:40:23,538 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1184 transitions. Word has length 188 [2023-12-16 03:40:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:23,538 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1184 transitions. [2023-12-16 03:40:23,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1184 transitions. [2023-12-16 03:40:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 03:40:23,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:23,540 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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, 1, 1] [2023-12-16 03:40:23,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:23,747 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 [2023-12-16 03:40:23,747 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:23,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1368762595, now seen corresponding path program 1 times [2023-12-16 03:40:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:23,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507787174] [2023-12-16 03:40:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:23,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:23,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:23,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1331652965] [2023-12-16 03:40:23,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:23,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:23,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:23,771 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) [2023-12-16 03:40:23,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 03:40:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:23,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 03:40:23,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:25,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 03:40:25,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:25,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:25,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507787174] [2023-12-16 03:40:25,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:25,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331652965] [2023-12-16 03:40:25,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331652965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:25,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:25,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 03:40:25,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816267199] [2023-12-16 03:40:25,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:25,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 03:40:25,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:25,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 03:40:25,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:40:25,628 INFO L87 Difference]: Start difference. First operand 778 states and 1184 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:26,227 INFO L93 Difference]: Finished difference Result 1652 states and 2513 transitions. [2023-12-16 03:40:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 03:40:26,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 188 [2023-12-16 03:40:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:26,232 INFO L225 Difference]: With dead ends: 1652 [2023-12-16 03:40:26,232 INFO L226 Difference]: Without dead ends: 938 [2023-12-16 03:40:26,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-16 03:40:26,235 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 250 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:26,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 713 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 03:40:26,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2023-12-16 03:40:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 792. [2023-12-16 03:40:26,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 530 states have (on average 1.320754716981132) internal successors, (700), 530 states have internal predecessors, (700), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2023-12-16 03:40:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1204 transitions. [2023-12-16 03:40:26,335 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1204 transitions. Word has length 188 [2023-12-16 03:40:26,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:26,335 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1204 transitions. [2023-12-16 03:40:26,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 03:40:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1204 transitions. [2023-12-16 03:40:26,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 03:40:26,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:26,337 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 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, 1, 1] [2023-12-16 03:40:26,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:26,546 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 [2023-12-16 03:40:26,546 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:26,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:26,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1915087451, now seen corresponding path program 1 times [2023-12-16 03:40:26,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:26,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96234129] [2023-12-16 03:40:26,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:26,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:26,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:26,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297835493] [2023-12-16 03:40:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:26,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:26,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:26,580 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) [2023-12-16 03:40:26,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 03:40:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:26,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 03:40:26,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 1017 proven. 75 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 03:40:27,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:40:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 126 proven. 33 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2023-12-16 03:40:29,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:29,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96234129] [2023-12-16 03:40:29,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:29,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297835493] [2023-12-16 03:40:29,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297835493] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:40:29,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:40:29,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-16 03:40:29,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515191504] [2023-12-16 03:40:29,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:40:29,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-16 03:40:29,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:29,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-16 03:40:29,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-12-16 03:40:29,629 INFO L87 Difference]: Start difference. First operand 792 states and 1204 transitions. Second operand has 26 states, 25 states have (on average 4.64) internal successors, (116), 24 states have internal predecessors, (116), 7 states have call successors, (56), 5 states have call predecessors, (56), 9 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Received shutdown request... [2023-12-16 03:41:15,638 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:41:15,642 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 [2023-12-16 03:41:16,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 03:41:16,846 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 03:41:16,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-16 03:41:16,856 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 137 [2023-12-16 03:41:16,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2558 ImplicationChecksByTransitivity, 34.7s TimeCoverageRelationStatistics Valid=1800, Invalid=6027, Unknown=5, NotChecked=0, Total=7832 [2023-12-16 03:41:16,859 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 972 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 03:41:16,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 792 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 03:41:16,860 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:41:16,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 03:41:16,861 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (792states) and FLOYD_HOARE automaton (currently 65 states, 26 states before enhancement),while executing Executor. [2023-12-16 03:41:16,865 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:41:16,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:41:16,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:41:16 BoogieIcfgContainer [2023-12-16 03:41:16,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:41:16,869 INFO L158 Benchmark]: Toolchain (without parser) took 67024.61ms. Allocated memory was 186.6MB in the beginning and 631.2MB in the end (delta: 444.6MB). Free memory was 138.8MB in the beginning and 372.5MB in the end (delta: -233.6MB). Peak memory consumption was 211.7MB. Max. memory is 8.0GB. [2023-12-16 03:41:16,872 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:41:16,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.34ms. Allocated memory is still 186.6MB. Free memory was 138.6MB in the beginning and 122.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 03:41:16,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.87ms. Allocated memory is still 186.6MB. Free memory was 121.8MB in the beginning and 117.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 03:41:16,872 INFO L158 Benchmark]: Boogie Preprocessor took 70.19ms. Allocated memory is still 186.6MB. Free memory was 117.7MB in the beginning and 112.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 03:41:16,873 INFO L158 Benchmark]: RCFGBuilder took 637.08ms. Allocated memory is still 186.6MB. Free memory was 112.4MB in the beginning and 140.1MB in the end (delta: -27.7MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. [2023-12-16 03:41:16,873 INFO L158 Benchmark]: TraceAbstraction took 65888.98ms. Allocated memory was 186.6MB in the beginning and 631.2MB in the end (delta: 444.6MB). Free memory was 139.6MB in the beginning and 372.5MB in the end (delta: -232.9MB). Peak memory consumption was 212.2MB. Max. memory is 8.0GB. [2023-12-16 03:41:16,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 354.34ms. Allocated memory is still 186.6MB. Free memory was 138.6MB in the beginning and 122.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.87ms. Allocated memory is still 186.6MB. Free memory was 121.8MB in the beginning and 117.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.19ms. Allocated memory is still 186.6MB. Free memory was 117.7MB in the beginning and 112.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 637.08ms. Allocated memory is still 186.6MB. Free memory was 112.4MB in the beginning and 140.1MB in the end (delta: -27.7MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. * TraceAbstraction took 65888.98ms. Allocated memory was 186.6MB in the beginning and 631.2MB in the end (delta: 444.6MB). Free memory was 139.6MB in the beginning and 372.5MB in the end (delta: -232.9MB). Peak memory consumption was 212.2MB. 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 constructing difference of abstraction (792states) and FLOYD_HOARE automaton (currently 65 states, 26 states before enhancement),while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.8s, OverallIterations: 11, TraceHistogramMax: 28, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 50.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2383 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2383 mSDsluCounter, 5213 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3370 mSDsCounter, 654 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2464 IncrementalHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 654 mSolverCounterUnsat, 1843 mSDtfsCounter, 2464 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2495 GetRequests, 2359 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2596 ImplicationChecksByTransitivity, 35.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=792occurred in iteration=10, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 685 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 2234 NumberOfCodeBlocks, 2234 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2411 ConstructedInterpolants, 0 QuantifiedInterpolants, 12174 SizeOfPredicates, 40 NumberOfNonLiveVariables, 5044 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 19518/19656 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