/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-78.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:12:29,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:12:29,680 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:12:29,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:12:29,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:12:29,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:12:29,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:12:29,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:12:29,703 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:12:29,703 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:12:29,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:12:29,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:12:29,705 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:12:29,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:12:29,705 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:12:29,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:12:29,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:12:29,706 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:12:29,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:12:29,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:12:29,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:12:29,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:12:29,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:12:29,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:12:29,708 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:12:29,708 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:12:29,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:12:29,709 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:12:29,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:12:29,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:12:29,710 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:12:29,710 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:12:29,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:12:29,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:12:29,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:12:29,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:12:29,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:12:29,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:12:29,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:12:29,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:12:29,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:12:29,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:12:29,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:12:29,718 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:12:29,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:12:29,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:12:29,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:12:29,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:12:29,929 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:12:29,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-78.i [2023-12-15 21:12:31,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:12:31,386 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:12:31,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-78.i [2023-12-15 21:12:31,397 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8128bc8ce/4a671f3b1a7647668ecfffc1e0800571/FLAG9374101eb [2023-12-15 21:12:31,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8128bc8ce/4a671f3b1a7647668ecfffc1e0800571 [2023-12-15 21:12:31,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:12:31,411 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:12:31,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:12:31,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:12:31,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:12:31,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:31,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7dbccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31, skipping insertion in model container [2023-12-15 21:12:31,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:31,464 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:12:31,578 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_operatoramount_amount250_file-78.i[916,929] [2023-12-15 21:12:31,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:12:31,743 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:12:31,756 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_operatoramount_amount250_file-78.i[916,929] [2023-12-15 21:12:31,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:12:31,845 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:12:31,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31 WrapperNode [2023-12-15 21:12:31,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:12:31,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:12:31,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:12:31,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:12:31,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:31,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:31,948 INFO L138 Inliner]: procedures = 26, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 483 [2023-12-15 21:12:31,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:12:31,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:12:31,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:12:31,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:12:31,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:31,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,058 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]. [2023-12-15 21:12:32,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:12:32,117 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:12:32,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:12:32,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:12:32,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (1/1) ... [2023-12-15 21:12:32,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:12:32,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:32,145 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) [2023-12-15 21:12:32,176 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 [2023-12-15 21:12:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:12:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:12:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:12:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:12:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:12:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:12:32,304 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:12:32,306 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:12:33,032 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:12:33,080 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:12:33,080 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:12:33,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:12:33 BoogieIcfgContainer [2023-12-15 21:12:33,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:12:33,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:12:33,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:12:33,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:12:33,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:12:31" (1/3) ... [2023-12-15 21:12:33,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428a211b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:12:33, skipping insertion in model container [2023-12-15 21:12:33,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:12:31" (2/3) ... [2023-12-15 21:12:33,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428a211b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:12:33, skipping insertion in model container [2023-12-15 21:12:33,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:12:33" (3/3) ... [2023-12-15 21:12:33,090 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-78.i [2023-12-15 21:12:33,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:12:33,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:12:33,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:12:33,168 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;@2c6d41e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:12:33,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:12:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 129 states have (on average 1.573643410852713) internal successors, (203), 130 states have internal predecessors, (203), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-15 21:12:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-15 21:12:33,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:33,207 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:33,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:33,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1301773186, now seen corresponding path program 1 times [2023-12-15 21:12:33,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:33,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343022850] [2023-12-15 21:12:33,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:33,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:33,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:33,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343022850] [2023-12-15 21:12:33,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:12:33,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579713132] [2023-12-15 21:12:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:33,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:33,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:33,522 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) [2023-12-15 21:12:33,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:12:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:33,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:12:33,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2023-12-15 21:12:33,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:33,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579713132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:33,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:33,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:12:33,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36675712] [2023-12-15 21:12:33,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:33,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:12:33,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:33,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:12:33,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:12:33,925 INFO L87 Difference]: Start difference. First operand has 188 states, 129 states have (on average 1.573643410852713) internal successors, (203), 130 states have internal predecessors, (203), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-15 21:12:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:33,978 INFO L93 Difference]: Finished difference Result 373 states and 684 transitions. [2023-12-15 21:12:33,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:12:33,984 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) Word has length 361 [2023-12-15 21:12:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:33,992 INFO L225 Difference]: With dead ends: 373 [2023-12-15 21:12:33,993 INFO L226 Difference]: Without dead ends: 186 [2023-12-15 21:12:33,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:12:33,999 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:34,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 307 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:12:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-15 21:12:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-12-15 21:12:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 128 states have (on average 1.546875) internal successors, (198), 128 states have internal predecessors, (198), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-15 21:12:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 310 transitions. [2023-12-15 21:12:34,055 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 310 transitions. Word has length 361 [2023-12-15 21:12:34,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:34,055 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 310 transitions. [2023-12-15 21:12:34,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-15 21:12:34,057 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 310 transitions. [2023-12-15 21:12:34,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-15 21:12:34,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:34,065 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:34,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:34,272 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 [2023-12-15 21:12:34,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:34,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1165348862, now seen corresponding path program 1 times [2023-12-15 21:12:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:34,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830662535] [2023-12-15 21:12:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:34,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:34,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:34,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230743274] [2023-12-15 21:12:34,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:34,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:34,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:34,421 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) [2023-12-15 21:12:34,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:12:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:34,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:12:34,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-15 21:12:34,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:34,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:34,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830662535] [2023-12-15 21:12:34,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:34,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230743274] [2023-12-15 21:12:34,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230743274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:34,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:34,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:12:34,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113556142] [2023-12-15 21:12:34,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:34,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:12:34,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:34,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:12:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:34,789 INFO L87 Difference]: Start difference. First operand 186 states and 310 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:34,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:34,918 INFO L93 Difference]: Finished difference Result 553 states and 922 transitions. [2023-12-15 21:12:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:12:34,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 361 [2023-12-15 21:12:34,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:34,924 INFO L225 Difference]: With dead ends: 553 [2023-12-15 21:12:34,924 INFO L226 Difference]: Without dead ends: 368 [2023-12-15 21:12:34,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:34,926 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 285 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:34,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 617 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:12:34,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-15 21:12:34,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 364. [2023-12-15 21:12:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 249 states have (on average 1.502008032128514) internal successors, (374), 249 states have internal predecessors, (374), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 21:12:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 598 transitions. [2023-12-15 21:12:34,978 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 598 transitions. Word has length 361 [2023-12-15 21:12:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:34,980 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 598 transitions. [2023-12-15 21:12:34,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 598 transitions. [2023-12-15 21:12:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-15 21:12:34,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:34,984 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:34,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:35,191 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 [2023-12-15 21:12:35,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:35,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:35,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1140274746, now seen corresponding path program 1 times [2023-12-15 21:12:35,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:35,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524241088] [2023-12-15 21:12:35,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:35,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:35,272 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:35,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734261944] [2023-12-15 21:12:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:35,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:35,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:35,281 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) [2023-12-15 21:12:35,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:12:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:35,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:12:35,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-15 21:12:35,575 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:35,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524241088] [2023-12-15 21:12:35,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:35,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734261944] [2023-12-15 21:12:35,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734261944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:35,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:35,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:12:35,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270518460] [2023-12-15 21:12:35,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:35,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:12:35,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:12:35,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:35,580 INFO L87 Difference]: Start difference. First operand 364 states and 598 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:35,705 INFO L93 Difference]: Finished difference Result 737 states and 1211 transitions. [2023-12-15 21:12:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:12:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 362 [2023-12-15 21:12:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:35,713 INFO L225 Difference]: With dead ends: 737 [2023-12-15 21:12:35,713 INFO L226 Difference]: Without dead ends: 374 [2023-12-15 21:12:35,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:35,717 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 271 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:35,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 743 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:12:35,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-12-15 21:12:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2023-12-15 21:12:35,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 255 states have (on average 1.4784313725490197) internal successors, (377), 255 states have internal predecessors, (377), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-15 21:12:35,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 601 transitions. [2023-12-15 21:12:35,755 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 601 transitions. Word has length 362 [2023-12-15 21:12:35,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:35,756 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 601 transitions. [2023-12-15 21:12:35,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 601 transitions. [2023-12-15 21:12:35,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-15 21:12:35,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:35,760 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:35,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:35,967 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 [2023-12-15 21:12:35,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:35,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:35,968 INFO L85 PathProgramCache]: Analyzing trace with hash -548668996, now seen corresponding path program 1 times [2023-12-15 21:12:35,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:35,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238309251] [2023-12-15 21:12:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:35,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:36,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:36,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639155972] [2023-12-15 21:12:36,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:36,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:36,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:36,062 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) [2023-12-15 21:12:36,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:12:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:36,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 21:12:36,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1329 proven. 18 refuted. 0 times theorem prover too weak. 4813 trivial. 0 not checked. [2023-12-15 21:12:36,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:12:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 147 proven. 18 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-15 21:12:36,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:36,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238309251] [2023-12-15 21:12:36,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:36,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639155972] [2023-12-15 21:12:36,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639155972] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:12:36,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:12:36,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-15 21:12:36,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170379196] [2023-12-15 21:12:36,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:12:36,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:12:36,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:12:36,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:12:36,622 INFO L87 Difference]: Start difference. First operand 370 states and 601 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-12-15 21:12:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:36,959 INFO L93 Difference]: Finished difference Result 753 states and 1213 transitions. [2023-12-15 21:12:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 21:12:36,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 362 [2023-12-15 21:12:36,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:36,966 INFO L225 Difference]: With dead ends: 753 [2023-12-15 21:12:36,966 INFO L226 Difference]: Without dead ends: 384 [2023-12-15 21:12:36,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 716 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:12:36,971 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 385 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:36,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 600 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 21:12:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-12-15 21:12:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 376. [2023-12-15 21:12:37,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 259 states have (on average 1.4555984555984556) internal successors, (377), 259 states have internal predecessors, (377), 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) [2023-12-15 21:12:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 601 transitions. [2023-12-15 21:12:37,014 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 601 transitions. Word has length 362 [2023-12-15 21:12:37,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:37,015 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 601 transitions. [2023-12-15 21:12:37,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-12-15 21:12:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 601 transitions. [2023-12-15 21:12:37,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-12-15 21:12:37,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:37,018 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:37,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:37,226 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 [2023-12-15 21:12:37,227 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:37,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:37,228 INFO L85 PathProgramCache]: Analyzing trace with hash -128314313, now seen corresponding path program 1 times [2023-12-15 21:12:37,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:37,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572940413] [2023-12-15 21:12:37,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:37,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:37,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:37,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510713524] [2023-12-15 21:12:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:37,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:37,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:37,286 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) [2023-12-15 21:12:37,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:12:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:37,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 21:12:37,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-15 21:12:37,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:37,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572940413] [2023-12-15 21:12:37,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:37,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510713524] [2023-12-15 21:12:37,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510713524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:37,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:37,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:12:37,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762776801] [2023-12-15 21:12:37,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:37,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:12:37,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:37,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:12:37,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:12:37,742 INFO L87 Difference]: Start difference. First operand 376 states and 601 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:39,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:39,071 INFO L93 Difference]: Finished difference Result 2280 states and 3626 transitions. [2023-12-15 21:12:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 21:12:39,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 363 [2023-12-15 21:12:39,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:39,082 INFO L225 Difference]: With dead ends: 2280 [2023-12-15 21:12:39,082 INFO L226 Difference]: Without dead ends: 1905 [2023-12-15 21:12:39,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:12:39,085 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1670 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:39,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 1318 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 21:12:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2023-12-15 21:12:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1762. [2023-12-15 21:12:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1206 states have (on average 1.4361525704809286) internal successors, (1732), 1213 states have internal predecessors, (1732), 536 states have call successors, (536), 19 states have call predecessors, (536), 19 states have return successors, (536), 529 states have call predecessors, (536), 536 states have call successors, (536) [2023-12-15 21:12:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2804 transitions. [2023-12-15 21:12:39,265 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2804 transitions. Word has length 363 [2023-12-15 21:12:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:39,266 INFO L495 AbstractCegarLoop]: Abstraction has 1762 states and 2804 transitions. [2023-12-15 21:12:39,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:39,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2804 transitions. [2023-12-15 21:12:39,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-12-15 21:12:39,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:39,270 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:39,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:39,478 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 [2023-12-15 21:12:39,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:39,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1951473805, now seen corresponding path program 1 times [2023-12-15 21:12:39,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:39,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121533820] [2023-12-15 21:12:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:39,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:39,521 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:39,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [83467466] [2023-12-15 21:12:39,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:39,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:39,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:39,523 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) [2023-12-15 21:12:39,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 21:12:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:39,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:12:39,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-15 21:12:40,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:12:40,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:40,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121533820] [2023-12-15 21:12:40,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:40,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83467466] [2023-12-15 21:12:40,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83467466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:12:40,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:12:40,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:12:40,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073796169] [2023-12-15 21:12:40,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:12:40,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:12:40,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:40,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:12:40,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:40,162 INFO L87 Difference]: Start difference. First operand 1762 states and 2804 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:40,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:40,380 INFO L93 Difference]: Finished difference Result 4422 states and 7039 transitions. [2023-12-15 21:12:40,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:12:40,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 364 [2023-12-15 21:12:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:40,396 INFO L225 Difference]: With dead ends: 4422 [2023-12-15 21:12:40,397 INFO L226 Difference]: Without dead ends: 2761 [2023-12-15 21:12:40,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:12:40,404 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 119 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:40,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 603 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:12:40,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2023-12-15 21:12:40,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2759. [2023-12-15 21:12:40,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 1905 states have (on average 1.4320209973753282) internal successors, (2728), 1916 states have internal predecessors, (2728), 824 states have call successors, (824), 29 states have call predecessors, (824), 29 states have return successors, (824), 813 states have call predecessors, (824), 824 states have call successors, (824) [2023-12-15 21:12:40,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 4376 transitions. [2023-12-15 21:12:40,628 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 4376 transitions. Word has length 364 [2023-12-15 21:12:40,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:40,630 INFO L495 AbstractCegarLoop]: Abstraction has 2759 states and 4376 transitions. [2023-12-15 21:12:40,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-15 21:12:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 4376 transitions. [2023-12-15 21:12:40,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-12-15 21:12:40,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:40,634 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:40,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:40,836 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 [2023-12-15 21:12:40,837 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:40,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:40,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1356281473, now seen corresponding path program 1 times [2023-12-15 21:12:40,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:40,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871409230] [2023-12-15 21:12:40,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:40,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:40,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:40,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954645283] [2023-12-15 21:12:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:40,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:40,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:40,891 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) [2023-12-15 21:12:40,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 21:12:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:41,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-15 21:12:41,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3789 proven. 375 refuted. 0 times theorem prover too weak. 1996 trivial. 0 not checked. [2023-12-15 21:12:43,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:12:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 81 proven. 246 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2023-12-15 21:12:45,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:45,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871409230] [2023-12-15 21:12:45,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:45,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954645283] [2023-12-15 21:12:45,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954645283] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:12:45,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:12:45,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-12-15 21:12:45,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134627220] [2023-12-15 21:12:45,320 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:12:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-15 21:12:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-15 21:12:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2023-12-15 21:12:45,323 INFO L87 Difference]: Start difference. First operand 2759 states and 4376 transitions. Second operand has 30 states, 30 states have (on average 6.1) internal successors, (183), 30 states have internal predecessors, (183), 9 states have call successors, (109), 5 states have call predecessors, (109), 10 states have return successors, (110), 9 states have call predecessors, (110), 9 states have call successors, (110) [2023-12-15 21:12:48,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:12:48,587 INFO L93 Difference]: Finished difference Result 10751 states and 16501 transitions. [2023-12-15 21:12:48,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-15 21:12:48,588 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.1) internal successors, (183), 30 states have internal predecessors, (183), 9 states have call successors, (109), 5 states have call predecessors, (109), 10 states have return successors, (110), 9 states have call predecessors, (110), 9 states have call successors, (110) Word has length 365 [2023-12-15 21:12:48,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:12:48,624 INFO L225 Difference]: With dead ends: 10751 [2023-12-15 21:12:48,625 INFO L226 Difference]: Without dead ends: 8093 [2023-12-15 21:12:48,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 768 GetRequests, 706 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=942, Invalid=3090, Unknown=0, NotChecked=0, Total=4032 [2023-12-15 21:12:48,638 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 2843 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:12:48,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2846 Valid, 1942 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 21:12:48,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8093 states. [2023-12-15 21:12:48,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8093 to 5849. [2023-12-15 21:12:49,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5849 states, 4702 states have (on average 1.4529987239472564) internal successors, (6832), 4745 states have internal predecessors, (6832), 984 states have call successors, (984), 162 states have call predecessors, (984), 162 states have return successors, (984), 941 states have call predecessors, (984), 984 states have call successors, (984) [2023-12-15 21:12:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5849 states to 5849 states and 8800 transitions. [2023-12-15 21:12:49,023 INFO L78 Accepts]: Start accepts. Automaton has 5849 states and 8800 transitions. Word has length 365 [2023-12-15 21:12:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:12:49,023 INFO L495 AbstractCegarLoop]: Abstraction has 5849 states and 8800 transitions. [2023-12-15 21:12:49,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.1) internal successors, (183), 30 states have internal predecessors, (183), 9 states have call successors, (109), 5 states have call predecessors, (109), 10 states have return successors, (110), 9 states have call predecessors, (110), 9 states have call successors, (110) [2023-12-15 21:12:49,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5849 states and 8800 transitions. [2023-12-15 21:12:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-12-15 21:12:49,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:12:49,029 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:12:49,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 21:12:49,237 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 [2023-12-15 21:12:49,238 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:12:49,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:12:49,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2094680321, now seen corresponding path program 1 times [2023-12-15 21:12:49,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:12:49,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358208678] [2023-12-15 21:12:49,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:49,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:12:49,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:12:49,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115635043] [2023-12-15 21:12:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:12:49,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:12:49,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:12:49,277 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) [2023-12-15 21:12:49,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 21:12:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:12:49,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-15 21:12:49,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:12:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2415 proven. 513 refuted. 0 times theorem prover too weak. 3232 trivial. 0 not checked. [2023-12-15 21:12:51,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:12:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 111 proven. 375 refuted. 0 times theorem prover too weak. 5674 trivial. 0 not checked. [2023-12-15 21:12:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:12:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358208678] [2023-12-15 21:12:53,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:12:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115635043] [2023-12-15 21:12:53,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115635043] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:12:53,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:12:53,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 34 [2023-12-15 21:12:53,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735708359] [2023-12-15 21:12:53,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:12:53,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-15 21:12:53,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:12:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-15 21:12:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2023-12-15 21:12:53,678 INFO L87 Difference]: Start difference. First operand 5849 states and 8800 transitions. Second operand has 34 states, 33 states have (on average 5.636363636363637) internal successors, (186), 32 states have internal predecessors, (186), 8 states have call successors, (108), 5 states have call predecessors, (108), 11 states have return successors, (109), 8 states have call predecessors, (109), 8 states have call successors, (109) [2023-12-15 21:13:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:06,732 INFO L93 Difference]: Finished difference Result 38341 states and 56711 transitions. [2023-12-15 21:13:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-12-15 21:13:06,733 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.636363636363637) internal successors, (186), 32 states have internal predecessors, (186), 8 states have call successors, (108), 5 states have call predecessors, (108), 11 states have return successors, (109), 8 states have call predecessors, (109), 8 states have call successors, (109) Word has length 365 [2023-12-15 21:13:06,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:06,834 INFO L225 Difference]: With dead ends: 38341 [2023-12-15 21:13:06,834 INFO L226 Difference]: Without dead ends: 32613 [2023-12-15 21:13:06,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14652 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=7410, Invalid=28880, Unknown=0, NotChecked=0, Total=36290 [2023-12-15 21:13:06,865 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 3356 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 4277 mSolverCounterSat, 980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 5257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 980 IncrementalHoareTripleChecker+Valid, 4277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-15 21:13:06,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3356 Valid, 3265 Invalid, 5257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [980 Valid, 4277 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-15 21:13:06,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32613 states. [2023-12-15 21:13:08,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32613 to 12407. [2023-12-15 21:13:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12407 states, 10141 states have (on average 1.4673109160832265) internal successors, (14880), 10208 states have internal predecessors, (14880), 1816 states have call successors, (1816), 449 states have call predecessors, (1816), 449 states have return successors, (1816), 1749 states have call predecessors, (1816), 1816 states have call successors, (1816) [2023-12-15 21:13:08,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12407 states to 12407 states and 18512 transitions. [2023-12-15 21:13:08,342 INFO L78 Accepts]: Start accepts. Automaton has 12407 states and 18512 transitions. Word has length 365 [2023-12-15 21:13:08,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:13:08,343 INFO L495 AbstractCegarLoop]: Abstraction has 12407 states and 18512 transitions. [2023-12-15 21:13:08,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.636363636363637) internal successors, (186), 32 states have internal predecessors, (186), 8 states have call successors, (108), 5 states have call predecessors, (108), 11 states have return successors, (109), 8 states have call predecessors, (109), 8 states have call successors, (109) [2023-12-15 21:13:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 12407 states and 18512 transitions. [2023-12-15 21:13:08,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-12-15 21:13:08,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:08,353 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:13:08,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 21:13:08,570 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 [2023-12-15 21:13:08,571 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:08,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:08,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1708302981, now seen corresponding path program 1 times [2023-12-15 21:13:08,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:08,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369353963] [2023-12-15 21:13:08,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:08,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:08,617 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:13:08,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802403723] [2023-12-15 21:13:08,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:08,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:08,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:08,622 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) [2023-12-15 21:13:08,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 21:13:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:08,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-15 21:13:08,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:13:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2424 proven. 492 refuted. 0 times theorem prover too weak. 3244 trivial. 0 not checked. [2023-12-15 21:13:10,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:13:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 132 proven. 510 refuted. 0 times theorem prover too weak. 5518 trivial. 0 not checked. [2023-12-15 21:13:12,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:13:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369353963] [2023-12-15 21:13:12,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:13:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802403723] [2023-12-15 21:13:12,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802403723] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:13:12,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:13:12,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2023-12-15 21:13:12,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463992649] [2023-12-15 21:13:12,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:13:12,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-15 21:13:12,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:13:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-15 21:13:12,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2023-12-15 21:13:12,687 INFO L87 Difference]: Start difference. First operand 12407 states and 18512 transitions. Second operand has 33 states, 31 states have (on average 5.903225806451613) internal successors, (183), 29 states have internal predecessors, (183), 10 states have call successors, (104), 6 states have call predecessors, (104), 12 states have return successors, (104), 10 states have call predecessors, (104), 10 states have call successors, (104) [2023-12-15 21:13:20,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:20,782 INFO L93 Difference]: Finished difference Result 33061 states and 48482 transitions. [2023-12-15 21:13:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-12-15 21:13:20,782 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 31 states have (on average 5.903225806451613) internal successors, (183), 29 states have internal predecessors, (183), 10 states have call successors, (104), 6 states have call predecessors, (104), 12 states have return successors, (104), 10 states have call predecessors, (104), 10 states have call successors, (104) Word has length 365 [2023-12-15 21:13:20,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:20,842 INFO L225 Difference]: With dead ends: 33061 [2023-12-15 21:13:20,842 INFO L226 Difference]: Without dead ends: 20795 [2023-12-15 21:13:20,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6329 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=4110, Invalid=13446, Unknown=0, NotChecked=0, Total=17556 [2023-12-15 21:13:20,877 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 2996 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 3003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:13:20,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 1503 Invalid, 3003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 21:13:20,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20795 states. [2023-12-15 21:13:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20795 to 9359. [2023-12-15 21:13:22,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 7124 states have (on average 1.3637001684446939) internal successors, (9715), 7161 states have internal predecessors, (9715), 1752 states have call successors, (1752), 482 states have call predecessors, (1752), 482 states have return successors, (1752), 1715 states have call predecessors, (1752), 1752 states have call successors, (1752) [2023-12-15 21:13:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 13219 transitions. [2023-12-15 21:13:22,355 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 13219 transitions. Word has length 365 [2023-12-15 21:13:22,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:13:22,355 INFO L495 AbstractCegarLoop]: Abstraction has 9359 states and 13219 transitions. [2023-12-15 21:13:22,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 31 states have (on average 5.903225806451613) internal successors, (183), 29 states have internal predecessors, (183), 10 states have call successors, (104), 6 states have call predecessors, (104), 12 states have return successors, (104), 10 states have call predecessors, (104), 10 states have call successors, (104) [2023-12-15 21:13:22,356 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 13219 transitions. [2023-12-15 21:13:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2023-12-15 21:13:22,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:13:22,363 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:13:22,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-15 21:13:22,570 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 [2023-12-15 21:13:22,571 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:13:22,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:13:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash -267230934, now seen corresponding path program 1 times [2023-12-15 21:13:22,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:13:22,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887673286] [2023-12-15 21:13:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:22,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:13:22,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:13:22,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216981052] [2023-12-15 21:13:22,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:13:22,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:13:22,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:13:22,607 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) [2023-12-15 21:13:22,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 21:13:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:13:22,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 21:13:22,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:13:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1536 proven. 0 refuted. 0 times theorem prover too weak. 4624 trivial. 0 not checked. [2023-12-15 21:13:23,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:13:23,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:13:23,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887673286] [2023-12-15 21:13:23,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:13:23,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216981052] [2023-12-15 21:13:23,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216981052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:13:23,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:13:23,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:13:23,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988361996] [2023-12-15 21:13:23,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:13:23,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:13:23,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:13:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:13:23,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:13:23,671 INFO L87 Difference]: Start difference. First operand 9359 states and 13219 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-15 21:13:26,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:13:26,015 INFO L93 Difference]: Finished difference Result 29379 states and 41623 transitions. [2023-12-15 21:13:26,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:13:26,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 366 [2023-12-15 21:13:26,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:13:26,067 INFO L225 Difference]: With dead ends: 29379 [2023-12-15 21:13:26,067 INFO L226 Difference]: Without dead ends: 20165 [2023-12-15 21:13:26,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:13:26,092 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 516 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:13:26,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1133 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 21:13:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20165 states. Received shutdown request... [2023-12-15 21:13:26,387 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:13:26,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 21:13:26,401 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:13:26,401 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 [2023-12-15 21:13:26,594 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 [2023-12-15 21:13:26,594 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-15 21:13:26,599 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:13:26,600 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:13:26,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:13:26 BoogieIcfgContainer [2023-12-15 21:13:26,602 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:13:26,603 INFO L158 Benchmark]: Toolchain (without parser) took 55191.12ms. Allocated memory was 217.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 163.3MB in the beginning and 998.6MB in the end (delta: -835.3MB). Peak memory consumption was 863.7MB. Max. memory is 8.0GB. [2023-12-15 21:13:26,603 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:13:26,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.05ms. Allocated memory is still 217.1MB. Free memory was 163.0MB in the beginning and 137.4MB in the end (delta: 25.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-15 21:13:26,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.02ms. Allocated memory is still 217.1MB. Free memory was 137.2MB in the beginning and 123.4MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 21:13:26,604 INFO L158 Benchmark]: Boogie Preprocessor took 165.38ms. Allocated memory was 217.1MB in the beginning and 325.1MB in the end (delta: 108.0MB). Free memory was 123.4MB in the beginning and 265.8MB in the end (delta: -142.4MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. [2023-12-15 21:13:26,604 INFO L158 Benchmark]: RCFGBuilder took 963.92ms. Allocated memory is still 325.1MB. Free memory was 265.8MB in the beginning and 195.0MB in the end (delta: 70.8MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2023-12-15 21:13:26,604 INFO L158 Benchmark]: TraceAbstraction took 53518.15ms. Allocated memory was 325.1MB in the beginning and 1.3GB in the end (delta: 947.9MB). Free memory was 194.0MB in the beginning and 998.6MB in the end (delta: -804.6MB). Peak memory consumption was 785.2MB. Max. memory is 8.0GB. [2023-12-15 21:13:26,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 434.05ms. Allocated memory is still 217.1MB. Free memory was 163.0MB in the beginning and 137.4MB in the end (delta: 25.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 102.02ms. Allocated memory is still 217.1MB. Free memory was 137.2MB in the beginning and 123.4MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 165.38ms. Allocated memory was 217.1MB in the beginning and 325.1MB in the end (delta: 108.0MB). Free memory was 123.4MB in the beginning and 265.8MB in the end (delta: -142.4MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. * RCFGBuilder took 963.92ms. Allocated memory is still 325.1MB. Free memory was 265.8MB in the beginning and 195.0MB in the end (delta: 70.8MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * TraceAbstraction took 53518.15ms. Allocated memory was 325.1MB in the beginning and 1.3GB in the end (delta: 947.9MB). Free memory was 194.0MB in the beginning and 998.6MB in the end (delta: -804.6MB). Peak memory consumption was 785.2MB. 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 188 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.5s, OverallIterations: 10, TraceHistogramMax: 56, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 29.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12492 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12441 mSDsluCounter, 12031 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8495 mSDsCounter, 3047 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10785 IncrementalHoareTripleChecker+Invalid, 13832 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3047 mSolverCounterUnsat, 3536 mSDtfsCounter, 10785 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5421 GetRequests, 5010 SyntacticMatches, 1 SemanticMatches, 410 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21959 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12407occurred in iteration=8, InterpolantAutomatonStates: 349, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 34047 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 3995 NumberOfCodeBlocks, 3995 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 5077 ConstructedInterpolants, 0 QuantifiedInterpolants, 32862 SizeOfPredicates, 53 NumberOfNonLiveVariables, 8388 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 83693/86240 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